Characteristics of cement mortar with nano-SiO2 particles

The Request for Proposal of Hoover DamName:NO.:1.Statement of workWith the main function of plans to build the dam in flood control and irrigation water supply, power generation and other comprehensive effect, the architecture is a concrete with 2.6 million m3 of concrete arch dam. The dam is 221.3 m high, crest length 379.2 m, the top 13.7 m wide, dam bottom width 201.2 m.The size of the hydropower station:Hydroelectric power is located behind the dam, with the right factory installed 8 business units, on the left bank workshop installation with nine business units, in addition to unit 2 sets for private use. Installed capacity of 2.08 million kw, generating 4 billion kw - h. Four intake tower built in front of the dam in the reservoir, four diameter is 9.14 m, the total delivery and 19 diameter is 3.99 m of pressure steel pipe are installed in on both sides of the tunnel.On both sides of the riverbed dam foundation and abutment mainly composed of lava, rock hard, in addition to very shallow table department (m) only weathering is flabby, joint fissure development, rock mass integrity, high range without a major discontinuity in dam foundation, dam upstream or downstream outside the foundation pit has a fault, 270 m apart.1000 ~ 1 100 f t elevation in bank slope is relatively slow, mainly lithology relatively poor, weak weathering resistance, breccia. But, whether lava or breccia, the uniaxial compressive strength of the wet average is more than 100 mpa. The deepest river bed cover 38 m. Seismic intensity 8 ° ~ 9 °.The hoover dam’s bedrock is hard andesite and breccia. Its riverbed is narrow and steep on both sides. Low water level to the depth of the bedrock is 33 ~ 40 m, low of 42.4 m, width of low water level of the water is 88-113 m.Table 1: data2. Requirements2.1The dam which will be constructed need to achieve the following purposes:(1)Can be irrigated farmland.For thousands of years’ each spring and early summer, the Colorado River due to the large snowmelt runoff import, resulting in rivers flooded in low-lying areas and public life and property suffered serious losses. But in the late summer and early autumn, rivers dried up again like a trickle, which cannot irrigate the farmland. In order to ensure not suffering flood and stable water supply all the year round, must control the troubled river. The to be built dam need to make sure that there are millions of acres of land in the United States, Mexico, about 500000 acres of land under irrigation, for local economic development and provide strong guarantee.(2) Can supply water.The dam can offer residential and commercial water supply in Las Vegas, Los Angeles, San Diego, phoenix and other south-west of the town's as well as the Arizona, Nevada and California Indian community residents and business.(3)To provide power.To provide the states with electricity, such as Nevada, Arizona and California, and annual output need to achieve 4 billion kw-h for 1.5 million residents.(4)Become a leisure entertainment places.Seek profits can be obtained from the aspects of tourism. In addition to the utilities such as electricity, water supply, make the dam realize its ornamental value as much as possible.2.2 The bidder's qualification shall meet the following conditions:1) Level of qualification of construction: Water conservancy and hydropower engineering construction general contracting level 2 and level 2 above;2) Construction experience: the enterprise has done similar project performance before January 2010, project manager or technical director has done similar project performance before 2008.3) Key personnel:Project manager: more than secondary and secondary water conservancy project;Technical director: water conservancy engineer and above.2.3 The unit cannot serve as a bidder belongs to one of the following situations:1) In this project or this contract project preparation stage has been as a legal person, or this contract’s employer has been hired for this contract’s design and consulting services;2) Have been employed as the supervisor of this contract.3. DeliverablesBidders shall be stipulated in the tender documents content and format of the compilation and submit the bid documents, bid documents should include qualification documents, business bid.3.1Qualification documentsEnterprise business license, qualification certificate, safety production license, investment project team personnel qualification certificate, 3 kinds of staff performance, enterprise similar projects, the project manager, or technical performance, head of the similar projects3.2 The business bid(1)Characteristic value of the bid documents(2)Bid proposal(3)Bid summary sheet.(4)Priced bill of quantities;(5)Temporary engineering quotation sheet;(6)Other cost quotation sheet;(7)Bidding the auxiliary materials unit price analysis table, material budget price summary table, unit price analysis table, the main material of concrete and the formulations of cement mortar with scale, etc.4. Items Supplied by UsWe will provide the contractors with detailed information about the dam’s current status, as well as statistical information regarding its surroundings.5. Approvals RequiredBefore the implementation of the project construction work, the contractor must obtain the approval of the final design.6. Type of ContractDue to the objective factors such as large-scale construction of the dam, long construction period, the contract is employed in adjustable price contract form.7. Due DateContractor must submit a request for proposal to us before March 1st, 20138. Time TableWe hope to elect a contractor before April 1st.The duration of the project is six years, from May 1st, 2013 to May 1st, 2019. All deliverables must be provided prior to May 1st, 2019 to the company.9. Payment TermsThis project adopts the progress payment(1) the completed quantity 50%, to 40% of the contract price;(2) complete the quantity of 90%, to 70% of the contract price;(3) after the completion acceptance, the paid to settle at 95%, 5% as quality retention, to be paid after the expiration of one year quality assurance.10. Proposal ContentsThe application must include the following contents:A. ApproachThe contractors need to clarify that they have a clear understanding of the expectations of the request for proposal which is on behalf of the contractor. Furthermore, describe the implementation of the project in detail, and for each task contractors should illustrate how to complete the tasks in detail.B. DeliverablesThe contractors should provide the description of each deliverable which should include the necessary data.C. ScheduleIn the form of a bar chart or network diagram, showing the timetable for the detailed tasks to be performed weekly, so as to complete the project within the time limit requirements.D. ExperienceDescribe the similar project that recently executed.E. StaffingLists the specific names of the officers who will be assigned to the work of the project and a detailed resume is required if he or she has experience in similar projects.F. CostsContractors must indicate the total investment of the project, which means the fixed assets investment and investment in current assets, including the cost of materials, labor costs, etc.11. Proposal Evaluation CriteriaWe will evaluate all contractor proposals according to the following criteriaA.Approach (30%)The approach and methodology the contractor proposes to conduct the project and analyze re results.B.Experience (30%)The experience of the contractor and the staff assigned to the project in performing similar projects.C.Price (10%)The fixed price of the contractor’s proposal is one method to evaluate.D.Schedule (10%)The detail and overall duration of the contractor’s proposed schedule to complete the project on or before the required project finish date.。

土木工程材料（civil engineering materials）Question: what are the effects of porosity, pore size and pore size on the properties of the material (such as strength, heat insulation, impermeability, frost resistance, corrosion resistance, water absorption, etc.)?.The larger the porosity of the material is, the lower the strength of the material is, the worse the impermeability and corrosion resistance are, and the stronger the water absorption is. The insulation property and frost resistance of the material are related to the pore structure of the material. The more content of the small hole and the non communicating hole, the better the thermal insulation property and the frost resistance of the material..Question: a multi-storey residential building interior plastering is lime mortar, after the delivery of the wall generally bulging cracking, try to analyze the reasons. What measures should be taken to prevent this from happening?.This phenomenon is due to the presence of burned lime, lime burned due to slow reaction, and the reaction time of the rapid expansion of the volume and release a lot of heat, so that the lime mortar wall bulging and cracking phenomenon after delivery. In order to avoid this phenomenon, lime should be used before Chen Fu..Question: the greater the porosity, the worse the frost resistance of the material?.The porosity of the material consists of two kinds of open poresand closed pores, and the porosity of the material is the sum of the open porosity and the closed porosity. The damage of the material due to freezing and thawing is mainly due to the freezing of water in the pores. The more water entering the pore, the worse the frost resistance of the material. Water is difficult to enter into the closed pores of materials. If the pores of the material are mainly closed pores, even if the porosity of the material is large, the moisture inside the material will not be much. In this case, the frost resistance of the material will not be poor..Question: why is slag cement, volcanic ash cement superior to Portland cement in corrosion resistance?.Because the hydration reaction of slag and calcium hydroxide volcano ash and clinker, C-S-H hydration products, the calcium hydroxide content in cement paste is greatly reduced, and the calcium hydroxide poor corrosion resistance. On the other hand, more hydrated products are formed, which makes the structure of cement stone more compact and improves the corrosion resistance of cement stone..Question: why is the dry shrinkage of fly ash cement smaller than that of pozzolanic cement?.The majority of fly ash are round particles with dense surface, while volcanic ash is irregular particles with porous surface. Generally speaking, when the cement paste reaches the same fluidity, the latter needs more water, which makes the hardened cement stone shrink more..Question: why shouldn't high alumina cement be cured at temperatures higher than 30?.In the process of high alumina cement hydration, when the temperature is below 20 DEG C, the main hydration products of CaOoAl2O3o10H2O, temperature 20 ~ 30 degrees, the main hydration products of 2CaOoAl2O3o8H2O, when the temperature is higher than 30 DEG C when the main hydration products3CaOoAl2O3o6H2O, the product of low strength, but not because of high alumina cement in the maintenance temperature higher than 30 DEG C under..Question: why is not the thinner the cement, the higher the strength must be?.Generally speaking, the fine particle of cement is beneficial to increase the hydration speed and sufficient hydration of cement, so that it is beneficial to the strength, especially the early strength. But the cement particles are too small, too large specific surface area of cement paste to demand the same flow too much, but the impact of the cement strength..Question: why is it necessary to make cement standard consistency before determining the setting time and soundness of cement?.The setting time stability of cement is related to the water cement ratio of cement paste. Although the water consumption is too large, the hydration speed of cement increases, but the distance between the cement particles increases and the setting time of the cement increases. When the cement stability betweenqualified and unqualified, and increase the water cement ratio, the soundness of cement performance is qualified. Therefore, the water content of cement standard consistency is determined first, and the setting time and soundness of cement are determined by the same conditions..Question: why concrete is not the amount of cement as much as possible?.When the amount of cement is too large, the shrinkage of concrete is greater and the hydration heat is larger, which leads to the cracking of concrete. At the same time waste cement, increase project costs..Question: why is it necessary to add a certain amount of cementitious material to cement mortar?.Because the cement is used for making mortar, the mark of the cement is much larger than the strength grade of the mortar, so a small amount of cement can meet the requirement of strength. However, when the amount of cement is less (such as less than 350 kg), the fluidity and water holding capacity of mortar are often poor, especially the water retention. Therefore, the construction quality of mortar is seriously affected, so it is necessary to add some other cheap cementing material to improve the fluidity of mortar, especially the water retention..Question: under the condition that the amount of cement slurry is certain, why is the rate of sand too small and too big tomake the fluidity of mixture become worse?.The dosage of cement slurry under certain conditions, when the void volume rate of sand is not enough to fill the number of hours of gravel or little surplus, in this case, the stone mortar at the contact point is too little, flowing mixture is very small. When the sand ratio is too large, set the total surface area and void material consumption rate increases, the fine aggregate used for wrapping the surface of cement mortar increased, cement sand at the point of contact is insufficient, even not enough to cover all the sand slurry, the dry mortar, liquidity mixture becomes worse..Question: what is the yield point of the material instead of its tensile strength as a basis for the design of the structure?.Yield strength and ultimate tensile strength are two important indexes to evaluate the strength of steel. Ultimate tensile strength is the maximum stress that a test piece can bear. In the structural design, the component is required to work within the elastic deformation range, even if a small amount of plastic deformation should be avoided, so the yield strength of the steel is taken as the basis for design stress. Tensile strength can not be fully utilized in structural design, but the ratio of yield strength to tensile strength (bending strength ratio) has some significance. The smaller the yield strength ratio is, the higher the structural safety is..Question: why is the elongation of steel an important technical performance index for construction steel?.Steel in use, in order to avoid the normal stress at the defect stress concentration due to brittle fracture, its plasticity is good, which has a certain elongation, the defect can be more than the yield point of the material, with the plastic deformation and the stress redistribution, and avoid the premature failure of steel. At the same time, under normal temperature, the steel is processed into a certain shape, and it also requires a certain plasticity. But the elongation can not be too large, otherwise it will allow the use of steel in excess of the allowable deformation value..Question: why does cold working hardening of steel have side effects of plasticity and brittleness?.Steel processing and plastic deformation, the plastic deformation of grains within the region have a relative slip, the slip surface of grain crushing, lattice deformation, a sliding surface is uneven, and the distortion to the difficult. Therefore, the plasticity decreases and the brittleness increases..Question: what are the similarities and differences between porous bricks and hollow bricks?.The two kinds of brick porosity requirements are equal to or greater than 15%; the brick hole size is small and the number of hollow brick the size of the hole and the number of small; the porous brick used in load-bearing hollow brick, often used for non load bearing parts..Question: in a water aerated concrete block masonry wall immediately after pouring mortar plastering mortar layer, prone to cracking and hollowing and why?.Aerated concrete block of the pores are mostly "ink bottle" structure, only a small part of the pores formed by evaporation of water, small belly, capillary action is poor, so water absorption heat conduction slow. Ordinary brick fired water easily absorb enough water, and aerated concrete surface watering a lot, but in fact, water absorption is not much. In general the mortar plastering of aerated concrete is easy to absorb moisture, and is easy to produce cracking and hollowing. Therefore, the water can be divided into several times, and the mortar with good water retention and high bond strength is adopted..Question: why should lightweight aggregate concrete small hollow block be used for expansion joint when wall is used?.This is because the temperature deformation and dry shrinkage deformation of lightweight aggregate concrete small hollow block are larger than that of sintered common brick. In order to prevent cracks, the expansion joint can be set according to specific conditions, and the structural reinforcement is added to the necessary parts..Question: are stone materials available for underground foundations?.Not always。

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阳离子电泳catastrophe 灾变catch all 打捞工具catch basin 聚水池catch hook 打捞钩catcher 捕捉器catchment area 聚水池catchpit 排水井caterpillar 履带caterpillar bulldozer 履带式推土机caterpillar crane 履带式起重机caterpillar excavator 履带式挖掘机caterpillar tractor 履带拖拉机cathead line 猫头钢丝绳cathetometer 精确高差测量仪cathode 阴极cation 阳离子cationic 阳离子的cationic flotation 阳离子浮选catline 猫头钢丝绳caulbron 凹地caulking 堵缝；填塞caunter 交错矿脉caustobiolith 可烧性生物岩cave 陷落caved area 崩落区cavern 岩洞cavernous vein 孔穴矿脉caving 落顶开采caving chock 木垛caving line 放顶线caving method 崩落开采法caving shield 掩护支架caving system 崩落开采法cavitation 空洞现象cavity 空穴cawk 重晶石ceiling 顶板ceiling girder 顶梁ceiling hole 顶板炮眼celestine 天青石celestite 天青石cell 浮选机；筛孔cellar stone 碎石cellular concrete 多孔混凝土cellular plastics 多空塑料celsian 钡长石celsius scale 摄氏标度celsius thermometer 摄氏温度计celtium 铪cement 水泥cement carbide tool 硬质合金工具cement grout 水泥浆cement injection 水泥浆灌法cement mortar 水泥灰浆cement water factor 水灰比cement water ratio 水灰比cementation 渗碳cementation method 水泥浆灌法cemented carbide 硬质合金cemented carbide tip 硬质合金刀片cemented steel 渗碳钢cementing 水泥灌浆cementing agent 胶结物cementite 渗碳体cementitious agent 胶结物cenozoic era 新生代center cut 中部掏槽center cutting 中部掏槽center line 中心线center of curvature 曲率中心center of gravity 重心center of gyration 回转中心center of rotation 回转中心centering 定中心centipoise 厘泊central ventilation 中央式通风centralized control 集中控制centralizer 定心夹具centrifugal 离心的centrifugal air separation 离心空气分选centrifugal air sepereator 离心式风力分选机centrifugal blower 离心式送风机centrifugal classifier 离心分级机centrifugal compressor 离心式压缩机centrifugal dense medium separator 离心重介质选矿机centrifugal dryer 离心干燥机centrifugal effect 离心效应centrifugal fan 离心扇风机centrifugal filter 离心过滤机centrifugal filtration 离心过滤centrifugal force 离心力centrifugal mill 离心式磨机centrifugal pump 离心泵centrifugal separation 离心式分选centrifugal seperator 离心式分离机centrifugal settling 离心沉降centrifugal stowing 投掷充填centrifugal thickener 离心浓缩机centrifugal ventilator 离心扇风机centrifugation 离心分离centrifuge 离心机centrode 瞬心轨迹ceramic 陶瓷的cerargyrite 角银矿cerasite 樱石cerium 铈cerussite 白铅矿cervanite 黄锑华cervantite 黄锑华cesium 铯ceylonite 镁铁尖晶石ceyssatite 硅藻土cgs unit 厘米克秒单位chabasite 菱沸石chabazite 菱沸石chad 砾石；碎石chain 链chain and bucket type excavator 链斗式扩掘机chain and flight conveyor 刮板输送机chain and pan conveyor 链板式输送机chain block 链滑车chain bucket elevator 链斗式提升机chain bucket excavator 链斗式扩掘机chain coalcutter 链式截煤机chain conveyor 链板运输机chain cutter 链式截煤机chain cutting machine 链式截煤机chain drive 链传动chain drive section 截链传动部分chain drum 链鼓轮chain elevator 链式提升机chain face conveyor 工祖链板输送机chain feeder 链式给矿机chain gearing 链传动chain grizzly 链筛chain haulage 链条运输chain keps 链式罐笼座chain link 链节chain pillar 巷道煤柱chain pin 锁环销chain saw 链锯chain scraper conveyor 链板输送机chain tension 链条张力chain tensioner 紧链器chain tightener 紧链器chain wheel 链轮chain winch 链绞车chalcanthite 胆矾chalcedony 玉髓chalcocite 辉铜矿chalcopyrite 黄铜矿chalcosine 辉铜矿chalcotrichite 毛赤铜矿chalk 白垩chalmersite 方黄铜矿chalybite 菱铁矿chamber and pillar method 房柱开采法chamber and pillar system 房柱开采法chamber blasting 药室爆破chamber charge 洞室装药chamber mining 房式开采chambering 炮眼掏壶chamoisite 鲕绿泥石chamosite 鲕绿泥石champion lode 嘱chance cone 强斯型圆锥洗煤机chance process 强斯砂浮法chaneling machine 截煤机change 变化change gear 交换齿轮change gear box 变速器change over switch 转换开关change wheel 交换齿轮channel 槽钢channel loading machine 截煤装载机channel steel arch 槽形钢拱channeler 凿沟机channeling 掏槽channeller 凿沟机channelling machine 截煤机chaps 龟裂characteristic curve 特性曲线characteristic equation 特性方程式characteristic value 特性值characteristics of explosives 火药的特正charcoal 木炭charge 装药charge density 装药密度charge guantity 炸药装埴量charge limit 装药限度charge volume 装药体积chargeman 装药工charger 装料器charging 装药charging density 装药密度charging machine 装入机charging room 装药室charging stick 塞药棒charring 炭化chart 曲线图chase 槽chaser mill 碾碎机chasing 沿走向探查矿脉chassis 车底盘chats 矿山废石check 细缝；侧壁；校核check cable 安全绳check door 阻风门check out 尖灭check sample 校对取样check test 检验试验check valve 止回阀checker 棋盘式排列checking point 检查地点checkpoint 检查地点cheddite 谢德炸药chemical action 化学酌chemical affinity 化学亲和能chemical analysis 化学分析chemical change 化学变化chemical composition 化学组成chemical compound 化合物chemical corrosion 化学腐蚀chemical process 化学过程chemical property 化学性质chemical reaction 化学反应chemisorption 化学吸着chemistry 化学cherty limestone 硅质石灰岩chessylite 蓝铜矿chiastoline 空晶石chiastolite 空晶石chief 知的chief constituent 知组分chiesel 錾chillagite 钨钼铅矿chilled shot drill 冷钢钻粒钻机chilled shot drilling 钻粒钻进chilling method 冻结法chimney 竖立富矿体chimney fan 出风筒chinley coal 块煤chip 切屑chipping 拣出富矿chippings 石片chippy cage 辅助罐笼chippy shaft 辅助竖井chips 碎石chipway 钻粉排出槽道chisel 錾chitter 泥质薄铁矿夹层chloanthite 砷镍矿chlorate 氯酸盐chlorate explosives 氯酸盐炸药chloride 氯化物chloridization 氯化酌chlorination 氯化酌chlorine 氯chlorite 绿泥石chloritization 亚氯化chloritoid 硬绿泥石chock 木垛chock timbering 垛式支架choke 扼吝圈choke coil 扼吝圈chokedamp 室息性气体choking up 堵塞chondrodite 粒硅镁石chop 裂缝chop feeder 箱式计量给料器chopper 断续装置chopping 破碎christophite 铁闪锌矿chromate 铬酸盐chromatography 色层分离法chrome 铬chrome iron ore 铬铁矿chrome nickel steel 铬镍钢chrome stainless steel 铬不锈钢chrome tangsten steel 铬钒钢chromite 铬铁矿chromitite 铬铁岩chromium 铬chromium stainless steel 铬不锈钢chromometer 比色计chrysoberyl 金绿宝石chrysocolla 硅孔雀石chrysocollite 硅孔雀石chrysolite 贵橄榄石chrysoprase 绿玉髓chrysotile 温石棉chuck 夹盘chuck on 复轨器chucker on 复轨器churn drill 钢丝绳钻机churn drilling 钢丝绳钻进churner 手持式长钎子chute 溜道chute blasting 溜井爆破chute door 溜槽闸门chute gate 溜槽闸门chute mouth 溜槽口cinder coal 天然焦cinley coal 块煤cinnabar 辰砂cinnabarit 辰砂cipolino 云母大理石circle 圆circle of stress 应力圆circlet 小环circlip 簧环circuit 回路circuit breaker 断路器circuit diagram 电路图circuit test 爆破网路试验circuit tester 放炮电路试验器circular 圆形的circular bubble 圆水准器circular closed support 环形支架circular groove 环形槽circular section 圆形断面circular sector 扇形circular shaft 圆形立井circulating load 循环负载circulating lubrication 循环润滑circulating pump 循环泵circulating water 循环水circulation 循环circulation time 循环时间circumferential force 圆周力circumferential velocity 圆周速度cistern 蓄水池citrine 黄水晶claim 矿区clamp 夹板clamping device 夹具clamshell 抓岩机clamshell excavator 蛤斗式挖掘机clamshell scoop 蛤斗clap valve 瓣阀clarain 亮煤clarification 澄清clarification of water 澄水clarifier 澄清器clarify 澄清clarifying tank 澄清桶clarity 澄清度class 级classification 分级classification screen 分级筛classifier 分级工classifier overflow 分级机溢流classifying screen 分级筛clastic rock 碎屑岩clausthalite 硒铅矿claw 爪clay 粘土clay band 粘土夹层clay bed 粘土层clay blanket 粘土覆盖层clay course 粘土夹层clay filler 粘土填料clay marl 粘土泥灰岩clay mill 粘土拌合机clay mineral 粘土质矿物clay mortar 粘土灰浆clay mud 粘土泥clay pit 采粘土场clay rock 粘土岩clay stemming 粘土炮泥clay tamping 粘土炮泥claypan 不透水粘土层；粘土质砾岩claypit 采粘土场clayrock 粘土岩clayslate 泥板岩claystone 粘土岩clean 净的；使干净clean air 新鲜空气clean mining 全采clean ore 洗矿cleaned coal 精煤cleaner 清除器cleaner cell 精选机cleaner flotation 精浮选cleaner tailings 精选尾矿cleaning 精浮选cleaning cell 精选机cleaning machine 清除器cleaning plant 选煤厂cleaning rejects 选煤厂废渣cleaning unit 选煤设备cleans 精煤cleans ash 精煤灰分cleap 交错层理clear water 净水clear width 净宽clearance 间隙clearance angle 后角clearance gage 测隙规clearance signal 撤退信号clearing device 洗涤器cleavability 可劈性cleavage 劈理cleaving 劈理cleek coal 原煤cleft 裂口clevis u形夹click 掣子cliff 悬崖climbing ability 爬坡能力clinker 熔块clinochlore 斜绿泥石clinograph 钻孔测斜仪clinohumite 斜硅镁石clinometer 倾斜仪clinoscope 水平钻孔测斜仪clinozoisite 斜帘石clip 夹clipper 限幅器clob 泥炭田clockwise rotation 顺转clod 块clogging 堵塞close drilling 密集钻眼close grained texture 细粒结构close packing 严密充填close set timber 紧密支架closed arch 闭合拱closed circuit 闭路closed circuit crushing 闭路破碎closed construction 封闭结构closed frame 完全棚子closed lamp colliery 安全灯煤矿closed lamp mine 多尘瓦斯矿closed mine 关闭的矿山closed type bearing 封闭式轴承closing device 关闭装置cloth tape 布卷尺clouded glass 毛玻璃cluster 枝形灯架clutch 离合器联动器clutch disc 离合撇盘clutch lever 离合扑clutch pedal 离合皮板clutch plate 离合撇盘coagulability 凝结性coagulable 可凝结的coagulant 凝结剂coagulation 凝结coagulator 凝结剂coagulum 凝结物coal 煤coal basin 煤田coal bed 煤层coal block 煤柱coal briquette 煤砖coal bunker 煤仓coal burst 煤的挤出coal chute 放煤溜槽coal combine 联合采煤机coal combustibles 煤的可燃成分coal conveyor 运煤输送机coal crane 装煤起重机coal culm 煤粉coal cutter 截煤机coal deposits 煤炭矿床coal depot 贮煤场coal digger 采煤工coal dressing 选煤coal drill 煤钻coal dryer 煤炭干燥机coal dust 煤尘coal dust explosion 煤尘爆炸coal dust test 煤尘试验coal extraction 采煤coal face 采煤工祖coal fall 煤的崩落coal field 煤田coal flotation 浮游选煤coal geology 煤田地质coal grading 煤的分级coal grit 煤质砂岩coal heading 沿煤层巷道coal hewer 采煤工coal hutch 煤车coal hydraulicking 水力采煤coal industry 煤炭工业coal loading 煤装载coal losses 煤损失coal mill 磨煤机coal mine 煤矿coal mine fire 矿井火灾coal mine powder 煤矿用炸药coal miner 煤矿工人coal miner's lung 煤肺病coal mining 采煤coal mining ammonium nitrate explosives 硝铵炸药coal mining explosive 煤矿用炸药coal outburst 煤的挤出coal output 出煤量coal pick 刨煤镐coal pile 煤堆coal pillar 煤柱coal planer 刨煤机coal plough 刨煤机coal ploughing 刨煤机回采coal preparating plant 选煤厂coal preparation 选煤coal production 煤产量coal projection 煤的突出coal pulverizer 煤炭粉磨机coal pump 煤水泵coal puncher 冲唤截煤机coal recoverey drill 螺旋采煤机coal sampling 煤炭取样coal seam 煤层coal separator 选煤机coal shed 煤的夹层coal shoot 放煤溜槽coal shovel 铲煤机coal slate 煤质板岩coal slime 煤泥coal sorter 手选工coal storage yard 煤场coal store 贮煤场coal tar 煤焦油coal train 煤炭列车coal transport 煤运输coal tub 煤车coal type 煤型coal vein 煤层coal wall 采煤工祖coal washer 选煤机coal washery 洗煤厂coal washing 洗煤coal yard 贮煤场coal yield 煤的回收率coalcutter loader 联合采煤机coalification 煤化酌coaling crane 装煤起重机coalman 煤矿工人coalpit 煤矿coaly inclusion 煤包体coaly shale 煤质板岩coarse 粗粒的coarse breaking 粗碎coarse coal 大块煤coarse crusher 粗碎机coarse crushing 粗碎coarse fill 粗充填料coarse filter 粗滤器初滤器coarse grain sand 粗粒砂coarse grained 粗粒的coarse gravel 粗砾coarse grinding 粗磨coarse ore 粗矿石coarse sand 粗砂coarse sieve 粗筛coarse slurry 粗泥coarseness 粗度coating 被覆层coaxial cable 同轴电缆cob 小煤柱cobalt 钴cobalt bloom 钴毕cobalt glance 辉钴矿cobaltine 辉钴矿cobaltite 辉钴矿cobber 磁选机cobbing 手选；粗粒分选cocnentration factor 浓缩比cocopan 小型矿车code 代码coder 编码器coding 编码coefficient 系数coefficient of absorption 吸收系数coefficient of adhesion 粘附系数coefficient of charge 装药系数coefficient of compressibility 压缩系数coefficient of contraction 收缩系数coefficient of correlation 相关系数coefficient of cubical expansion 体膨胀系数coefficient of discharge 量系数coefficient of elasticity 弹性系数coefficient of expansion 膨系数coefficient of filling setting 充填压实系数coefficient of friction 摩擦系数coefficient of heat transfer 散热系数coefficient of linear expansion 线膨张系数coefficient of mine air leakage 矿井漏风系数coefficient of mining 开采率coefficient of overburden 剥离系数coefficient of recovery 回采率。

上海迪斯尼SKK厚型防火及涂料方案书提交单位：四国化研（上海）有限公司提交日期：2014年12月8日目录1.SKK Characteristics of Thick fireproof coating SKK厚型防火涂料特点 (3)2.SKK Technology parameter table of Thick fireproof coating SKK 厚型防火涂料技术参数表 (5)3 Construction technology of SKK Thick fireproof coating SKK厚型防火涂料施工工艺 (7)3.1 Surface treatment of steel structure 钢结构表面处理.. 73.2 Construction technology and system of Thick fireproof coating 厚型防火涂料施工工艺和搭配体系 (8)4 SKK Thick fireproof coating SKK厚型防火涂料产品检测报告184.1 Indoor Thick Fireproof coating 2.5h 室外厚型防火涂料2.5h test report (18)5.SKK Thick fireproof coating Environmental test report SKK厚型防火涂料环保检测报告 (23)6.SKK MSDS instructions of Thick fireproof coating SKK厚型防火涂料MSDS说明书 (27)7.SKK avoid hanging net description of Thick fireproof coating SKK 厚型防火涂料免挂网说明 (32)SKK Thick Fireproof Coating SpecificationSKK厚型防火涂料说明书1.SKK Characteristics of Thick fireproof coating SKK厚型防火涂料特点1）Patented Ceramic composite technology 专利陶瓷复合技术Adopt international leading ceramic composite technology used in thick fireproof coating，ensure the excellent performance of refractory；采用国际领先的陶瓷复合技术运用于厚型防火涂料，确保出色的耐火性能；2）Excellent adhesion and bonding strength 优异的附着力和粘结强度Is superior to the national bond strength and compressive strength several times，used for a long time without any peeling phenomenon、shedding phenomenon to ensure the provision of fire protection of steel structure for the long term；to effectively deal with steel structure weld shrinkage and thermal expansion and contraction；优于国标的粘结强度和抗压强度数倍，长时间使用不发生任何剥离、脱落现象确保对于钢结构提供长期的耐火保障；有效应对钢结构热胀冷缩和焊缝的收缩；3）Prominent Antirust effect 突出的防锈效果Favorable Antirust effect，generation can effectively inhibit rust can be directly on the bare steel construction 具有良好的防锈效果，能够有效地抑制铁锈的生成可以直接施工在裸钢上4）High durability 高耐久性For long term protection for steel structure building，protection for more than 20 years 对于钢结构建筑进行长久的保护，保护时间超过20年5）Excellent price 优异的性价比SKK Thick fireproof coating breakthrough has very good surface effect，with SKK professional the finish system，thus the use of expensive decorative aluminum to avoid，and to deduct the cost； SKK厚型防火涂料突破性的具有非常好表面效果，配合SKK专业的饰面系统，从而避免使用昂贵的铝板装饰，节约造价；6）Comfortable working environment 舒适的工作环境Pollution free formula，the whole coating process of almost no dust flying phenomenon，with good adhesion，so it is beneficial to the coating construction to ensure product adhesion；无污染配方，整个涂装工艺中几乎不发生任何粉尘飞扬的现象，具有良好的附着力，所以有利于抹涂施工保证产品的附着力；7）Harmless 无害性Do not contain carcinogenic（Lung cancer）material of asbestos，at the same time also does not contain any rock wool composition，environmental health；even in the fire process has no harmful substances or large amount of smoke generated；不含有致癌（肺癌）物质石棉，同时也不含有任何岩棉成分，健康环保；即便是在火灾的过程中也没有有害物或是大量烟雾产生；2.SKK Technology parameter table of Thick fireproof coating SKK 厚型防火涂料技术参数表3 Construction technology of SKK Thick fireproof coating SKK厚型防火涂料施工工艺3.1 Surface treatment of steel structure 钢结构表面处理According to the quality assurance requirements of painting to primer coating surface cleaning before starting work，The specific methods of operation cleanup and construction requirements please refer the《Surface cleaning solution》，require the coating surface to keep dry, clean.按照质量保证要求涂装开始前要进行底层涂层表面清理工作，具体清理工作的操作方法和施工要求详见《表面清理方案》，要求被涂装表面。

Aabove—ground conduit(pipeline) 地上管道accessible duct 通行地沟acrylonitrile butadiene stryene pipe ABS工程塑料管(ABS) active earth pressure 主动土压力adaptor slab 井筒盖板aerial crossing structure 跨越结构air—tight test 气密性试验anchor 固定墩arriving shaft 终端工作坑asbestos—cement pipe (ACP)石棉水泥管BBackfill 回填土bearing pressure distribution diagram 地基反力图形bedding angle 基础(座)中心角bend 弯管bending test 弯曲试验beveled pipe 斜口管Boussinecq pressure bulb布氏压力图形box(rectangular) conduit 矩形管道breadth of conduit 管道宽度breadth of trench 槽宽buried conduit(pepeline) 埋地管道buttand strap joint 抹带接头Ccable duct 电缆沟cap 盖堵casting place collar joint 现浇套环接头casting place joint 现浇接头(缝)cast—in—place(situ) conduit 现浇管道cast iron pipe(CIP) 铸铁管caulking填料;捻缝cement mortar lining 水泥砂浆内衬cement mortar with steel mesh strap joint 抹带接头centrifugal process 离心法chamber井室;检查室chemically pre-stressed concrete pipe 自应力混凝土管circular conduit 园形管道coating涂层coefficient of vertical earth pressure 竖向土压力系数collar type joint 套管(筒)式接头combined drainage conduit(pipeline) 合流管道combined duct 综合管道;共同沟compaction around the pipe with relatively untamped above thetop of pipe 中松侧实法compaction the two sides of pipe 胸腔夯实compansator 补偿器composite crossing 组合跨越composite pipe 复合管concrete cradle 混凝土管基(管座)concrete pipe(CP) 混凝土管conduit 管道conduit section 管道截面continuous casting process 连续浇铸法cooling water pipeline 冷却水管道core vibrated casting process 芯模震捣法core winding process 管芯缠丝法corrosion prevetive of pipes 管道防腐corrugated pipe 波纹管coupling of bousing 卡箍式管接头cover slab 井筒盖板crack width calculation 裂度宽度验算cracking load under three edge bearing test 裂缝荷载crown 顶点culvert 涵洞DD—load D荷载法dead’loadon conduit (pipeline) 管道恒荷载design pressure 设计压力detachable type joint 活接头dewatering 降水distribution of elastic reaction 弹性反力图形double junction 四通downpipe 雨落管downspout 雨落管duckfoot 肘管管托duct 管道ductile castiron pipe(DIP) 可延性铸铁管dynamic water pressure 动水作用力EEarth cover(heightofsoil) over con-duit 覆土高度earth pressure at rest 静止土压力earth pressure on embankment con/duit 上埋式土压力earthpressure on trench conduit 沟埋式土压力earthpressure under soil arch 土拱压力effective length of pipe 管有效长度elastic installation pipeline method 弹性敷管法elastic reaction of soil 土的弹性抗力elbow 弯头electrical conduits 电工套管elliptical conduit 椭园形管道embedded type PCCP(PCCP—E) 埋置式预应力钢筒混凝土管embedded—cylinder pipe(ECP) 埋置式预应力钢筒混凝土管expansion bellows 波纹补偿器expansion bend 弯管补偿器expansion joint 伸缩接头expansion joint 伸缩节expansion loop 弯管补偿器exterior prism 管侧土柱FFiber glass reinforced pipe(FRP) 玻璃纤维管filament winding process 纤维缠绕法finely divided solid transmission pipeline 细颗粒固体输送管道fixed support 固定管托;固定支座fixed trestle 固定支架flange 法兰flanged joint 法兰接头flat subgrade 素土平基flattening test 压偏试验;偏平试验flexible joint 柔性接头flexble pipe 柔性管flexible rubber expansion joint 可曲挠橡胶接头flexible trestle 柔性支架flexural stiffness ratio 刚柔比four—point loading test 四点法荷载试验free—flow conduit(pipeline) 自流管道fusion joint 热溶接头Ggastrans mission pipeline 输气管道gasket ring 密封圈glass fibrere inforced plastics pipe(GRP) 玻璃纤维增强热固性塑料管gravity—flow conduit(pipeline) 重力流管道gray cast iron pipe(CIP) 灰口铸铁管gully grating sand frames 雨水篦gully trap 雨水井Hhanger 吊杆haunches under pipe 管下腋角beaped load 堆积荷载heat—supply pipeline 供热管道heating pipeline 采暖管道height of conduit 管道高度horizontal earth pressure 水平土压力horses hoe conduit 马蹄形管道hydrostatic pressure 静水压力hydrostatic proof test 水压检验试验Iimpact factor 动力系数impact test 冲击试验industrial pipe line 工业管道inner sleeve joint 内套环接头inside diameter 内径inspection chamber 检查井interior prism 管上土柱intermediate jacking station 中继间invert 底点JJacking pressure 顶力Joint angular deflection 接头角位移Joint axial deformation 接头轴向位移Joint deflection test 接头角位移试验Joint packing 接头密封料Ioint sealant 接头密封料Joint straight draw test 接头拉伸试验LLag factor 滞后系数Lateral earth pressure 侧向土压力Leading pipe 导管Leak test 严密性试验lined type PCCP(PCCP—L) 内衬式预应力钢筒混凝土管lined—cylinder pipe(LCP) 内衬式预应力钢筒混凝土管liner 内衬live load on conduit(pipeline) 管道活荷载load on conduit(pipeline) 管道荷载loading distribution diagram 荷载分布图形longitudinal calculation 纵向计算MManhole 检查井manhole cover and flames 检查井盖manhole steps 踏步max. temperature difference between construction and operation 闭合温差mean diameter 平均直径mechanical joint 机械接头mixed structure conduit 混合结构管道Nnatural(original) ground surface 原状(始)地面natural soil 原状土new austrian tunnelling method 新奥法nodular cast iron pipe 球墨铸铁管non—pressure conduit(pipeline) 无压管道norminal diameter(DN) 公称直径OOffset 乙字管Olander’s bulbform distribution 奥兰特分布图形oriented(guiding) trestle 导向支架outer sleeve joint 套环接头outlet 出水口outside diameter 外径oval conduit 椭园形管道over excavation 超挖overhead prpeline 架空管道ovoid conduit 卵形管道Ppartial fixed trestle 半固定支架passive earth pressure 被动土压力petroleum transmission pipeline 输油管道pipe accesory 管道附件pipe bridge 管桥pipe casing slip joint 套筒式伸缩器pipe clip 管卡;管箍pipe crossing 管道跨越pipe diameter 管直径pipe duct 管沟pipefitting 管件pipe in pipe 双层管pipe jacking method 顶管法pipe length 管长pipe roofing method 管棚法pipe support 管托;管道支座pipeline 管道pipeline(conduit)structure 管道结构pipeline eaerial(over) crossing 管道跨越pipeline appurtenance 管道附属构筑物pipeline for waste water(sewerage) in building 建筑排水管道pipeline for water supply in building 建筑给水管道pipeline joint 管道接头pipeline pier 管道支礅pipeline trestle 管道支架pipeline undercrossing 管道穿越plastic sandwich pipe 发泡塑料管polybutylene pipe(PB) 聚丁烯塑料管polyethylene pipe(PE) 聚乙烯塑料管polypropylene pipe(PP) 聚丙烯塑料管precast fabricated conduit 预制装配管道pressure class 压力等级pressure conduit(pipeline) 压力管道prestressed concrete cylinder pipe(PCCP) 预应力钢筒混凝土管prestressed concrete pipe(PCP) 预应力混凝土管profile(ribbed) wall plastic pipe 异型(肋型)塑料管protective cased pipe 保护套管push—on type joint 插入式接头Rrare earth cast iron pipe 稀土铸铁管reaction wall 反力墙rebated pipe 企口管reception pit 接收工作坑red mud plastic anti—weather pipe 红泥聚氯乙烯耐候塑料管reducer 异径管;渐缩管reducerslab 缩颈盖板reinforced concrete pipe(RCP) 钢筋混凝土管reinforced plastic mortar pipe(RPMP) 增强塑料砂浆管reinforced thermo setting resin pipe(RTRP) 增强热固性树脂管rigid joint 刚性接头rigid pipe 刚性管rigid trestle 刚性支架riseofarch conduit 拱沟矢高road(street)gully 雨水口roller support 滚动管托;滚动支座roller suspension process 悬辊法Ssand box casting process 砂型浇铸法sealing gasket 密封圈self—anchoring joint 自锚式接头self—prestressed concrete pipe 自应力混凝土管semi—elliptical conduit 半椭园形管道semi—flexible pipe 半柔性管semi—rigid pipe 半刚性管separate foundation 分离式基础service ebility pressure 工作压力sewage conduit(pipeline) 污水管道shaft 井筒shaped by injection molding 注模成型法shaped by screw rod extruder 挤出成型法shapped subgrade 土弧基础shield tunneling method 盾构法single junction 三通sinking pipeline method 沉管法施工site load 施工荷载site pressure test 现场水压试验sleeve connection 杯口连接sleeve expansion joint 松套伸缩接头sleeve joint 套管(筒)式接头slider support 滑动管托;滑动支座slip—on coupling 活箍socket(bell) and spigot joint 承插式接头socket pipe 承口管soi1improvement 地基处理soil treatment 地基处理solvent cement joint 粘接接头splayed end pipe 斜口管spreading angle 分布角spring hanger 弹簧吊杆spring line 侧点stability calculation 稳定验算stainless steel pipe 不锈钢管starting shaft 起始工作坑stee lpipe 钢管stiffness calculation 刚度验算stiffness calss 刚度等级stiffness ring 刚性环stiffness test 刚度试验storm sewer conduit(pipeline) 雨水管道straight butt(plain) end pipe 平口管strength calculation 强度计算structural crossing 结构跨越subaqueous pipeline 水下管道submarine pipeline 海底管道submerged pipeline 水下管道support feet 肘管管托surcharge load 堆积荷载surface laver 涂层surge pressure 波动压力sustained pressure test 持续压力试验Ttable vibrated casting process 振动台震捣法thermal insulation of pipes 管道隔热;管道保温thickness of conduit structure 管道结构厚度thickness of pipe wall 管壁厚threaded joint 螺纹接头three—edge bearing test 三支承法试验three—point loading test 三点法荷载试验thrust blocks 止推墩thrust pit 顶进工作坑thrust wall 止推墙tongue and groove joint 企口式接头tongue and groove pipe 企口管traffic load 车辆荷载transversal calculation 横向计算trench depth 槽深trench installation 开槽施工;沟槽敷设trench less installation 不开槽施工tunneling method installation 隧道法敷设two—edge bearing test 双支承法试验tyre pressure 轮压Uultimate load under three—edge bearing test 破坏荷载unannealed nodular(ductile)cast iron pipe 铸态球墨铸铁管unback filled trench 末回填沟槽under—ground conduit(pipeline) 地下管道undisturbed earth 未扰动土unpassable duct 不通行地沟unplasticised polyvinyl chloride pipe(UPVC管) 硬聚氯乙烯塑料管Vvacuum pressure 真空压力ventilating duct 通风管道vertical compressed casting process 径向挤压法;立式挤压法vertical earth pressure 坚向土压力;垂直土压力vertical vibrated casting process 立式振捣法vitrified clay pipe 陶土管Wwall pipe chase 穿墙套管water distribution pipeline 配水管道water removal 排水water supply conduit(pipeline) 给水管道water tight test 闭(灌)水实验water transmission conduit(pipeline) 输水管道welding joint 焊接接头wheel pressure 轮压working pressure 工作压力works hydrostatic test 水压检验试验。

cement造句1、First of all, through the admixture of cement mortar of the trial, summed up the impact of.首先，通过外加剂对水泥砂浆性能的试验，总结了其影响规律。

2、Application of a multi-functional cement additive in BZ25-1 oilfield 多功能水泥外加剂在BZ25-1油田固井中的应用3、Study on Low-hot High Performance High Belite Cement Large Dam Concrete低热高性能高贝利特水泥大坝混凝土的研究4、A Study on Early Strength of 425~# Slag Portland Cement and Preductivity425~#矿渣硅酸盐水泥早期强度及提高台时产量研究5、SIMULATED EXPERIMENT ON DECOMPOSITION OF CEMENT RAW MEAL水泥生料的分解模拟实验6、Portland cement consists chiefly of calcium and aluminum silicates.硅酸盐水泥包括主要的钙和铝硅酸盐。

7、Objective To evaluate the resin modified glass ionomer cement for orthodontic bracket bonding.目的评价树脂改良型玻璃离子粘固剂粘接正畸托槽的临床使用效果。

8、Pile length is a key parameter in cement mixing pile composite foundation design.水泥搅拌桩桩长是复合地基设计中的一个主要参数。

9、Discussion of the parameters of top cement pulsation.关于顶部水泥脉冲振动设备参数的讨论10、The performance of the slag cement blended with desulphurization gypsum is studied.本文研究了脱硫石膏对矿渣水泥物理性能的影响。

基于COMSOL的水泥基材料中氯离子传输仿真张明;谭琼;曾宪梅;兰中佑【摘要】深海区的水泥基材料在受到水压力和氯离子浓度梯度的双重作用时,可能产生与一般环境下的氯离子不一样的渗透规律.以水泥砂浆试块作为研究对象,利用基于COMSOL软件的仿真技术以及相应的物理实验分析了静水压力场-氯离子浓度场耦合作用下水泥基材料中氯离子传输机制.研究结果表明:静水压力作用下氯离子传输深度受试块水灰比变化影响巨大,它随着水泥基材料水灰比的增加而快速增加;当静水压力为0.5 MPa时,随着砂浆试块水灰比由0.35增加到0.45和0.55,氯离子传输深度分别增长了28.1％和52.9％;在不同静水压力的作用下相同水灰比砂浆试块氯离子传输深度也有非常明显的变化,其中当砂浆试块水灰比为0.35时,随着静水压力由0 MPa增长到0.5 MPa和1.0 MPa,30 d的氯离子最终传输深度分别增大了43.1％和123.6％.【期刊名称】《人民长江》【年(卷),期】2019(050)005【总页数】5页(P151-155)【关键词】氯离子;传输深度;COMSOL;水泥基材料;压力-浓度耦合作用【作者】张明;谭琼;曾宪梅;兰中佑【作者单位】四川省建材工业科学研究院,四川成都 610081;四川省建材产品质量监督检验中心,四川成都 610081;四川省建材工业科学研究院,四川成都 610081;四川省建材产品质量监督检验中心,四川成都 610081;四川省建材工业科学研究院,四川成都 610081;四川省建材产品质量监督检验中心,四川成都 610081;四川省建材工业科学研究院,四川成都 610081;四川省建材产品质量监督检验中心,四川成都 610081【正文语种】中文【中图分类】TV431在海洋环境中，跨海隧道等基础设施往往包括处于深海环境下的部分，即深海区的水泥基材料构筑物，例如日本青函隧道，最大水深140 m[1]。

深海区的水泥基材料会受到水压力和氯离子浓度梯度的双重作用，而产生与一般环境下的氯离子不一样的渗透规律[2-3]。

水泥胶砂流动度测定方法的操作要点及注意事项张奇，郭旭，宋来申，张庆华(中国建材检验认证集团股份有限公司，北京100024)摘要：依据GB/T 2419-2005《水泥胶砂流动度测定方法》，简要介绍测定水泥股砂流动度的准备工作，检测设备等，重点讲述测定水泥胶砂流动度过程中的注意事项和操作要点，以便相关试验员借鉴与学习，做到统一手法，最大程度上实现水泥胶砂流动度结果的统一性和溯源性，提高水泥胶砂流动度结果的可 靠性和准确性。

关键词：水泥；水泥胶砂流动度；操作要点；注意事项A b s t r a c t:Based on GB/T 2419-2005 “Test method for fluidity of cement mortar”，this paper briefly introduces the preparation work and testing equipment for measuring the fluidity of cement mortar?focusing on the matters needing attention and operating points in the process of determining the fluidity of cement mortar,so that relevant experimenters can draw lessons from and learn to achieve the unification of the results of the fluidity of cement mortar to the greatest extent.Traceability can improve the reliability and accuracy of the results of cement mortar fluidity.K e y w o r d s：cement;fluidity of cement mortar；key points of operation；precautions中图分类号TQ172.12 文献标识码：B文章编号：1671 —8321 (2021) 03—0101—03〇引言水泥是当今工业建筑和民用建筑中最常用的材料，自1985年起，中国水泥产量一直雄居世界第一，到2005年，中国的水泥年产量已达10.64亿吨，占世界水泥产量48%左 右。

水泥砂浆桩无侧限抗压强度试验研究隋瑞凌;阮波;李雪松【摘要】通过水泥砂浆桩无侧限抗压强度室内配比试验，研究不同水泥掺入比、不同掺砂量及不同龄期条件下水泥砂浆桩的无侧限抗压强度发展规律。

试验研究表明：水泥土中掺入一定量的砂，可以明显地提高水泥砂浆桩的无侧限抗压强度。

水泥掺入比相同时，28 d 龄期的水泥砂浆桩的无侧限抗压强度为水泥土的2．2～3．7倍；水泥砂浆桩的无侧限抗压强度随着掺砂量的增加而增大，当掺砂量达到30％以后，强度随着掺砂量的增大而减小。

水泥砂浆桩无侧限抗压强度随着水泥掺入比的增大而增大，随着养护龄期的增长而增大，其中前期的强度增长速率较快，后期较慢。

水泥掺入比低、掺砂量低、龄期短的试件试件呈现塑性破坏，水泥掺入比高、掺砂量高、龄期长的呈现脆性破坏。

本文的研究成果可为工程应用提供试验数据和理论依据。

%Through unconfined compressive strength (UCS)test of cement mortar pile in laboratory,its develop-ment rules in different sand contents,different cement contents and different curing ages are studied.The experi-mental results indicate that the mixing with a certain amount of sand can significantly increase the strength of ce-ment mortar pile under a certain cement content condition.When the cement content is same,the UCS of cement mortar pile is 2.2 ~3.7 times than the UCS of cement stabilized soil when the curing age is 28 days.The UCS of cement mortar pile increases significantly with the increase of sandcontent,however,the strength of the speci-mens decreases after sand content is 30%.The results indicate that with the increase of curing period and cement ratio,the strength of the specimens increasesignificantly.Nevertheless,the decrease rate of UCS resulted from the increase of curing days.The deformation modulus of cement mortar pile increases with the growth of UCS. Plastic fracture could be described fracture characteristics of the specimen with low sand content;low cement ra-tio and short curing days.At the same time,the fracture characteristics of the specimen with high sand content, high cement ratio and long curing days.The result provides test data and theoretical basis for the practical appli-cation of engineering.【期刊名称】《铁道科学与工程学报》【年(卷),期】2015(000)003【总页数】5页(P540-544)【关键词】水泥砂浆桩;无侧限抗压强度;水泥掺入比;掺砂量;龄期;破坏模式【作者】隋瑞凌;阮波;李雪松【作者单位】中铁二十五局集团第二工程有限公司，湖南衡阳 421002;中南大学土木工程学院，湖南长沙 410075;中南大学土木工程学院，湖南长沙 410075【正文语种】中文【中图分类】TU411.7水泥砂浆桩无侧限抗压强度试验研究①隋瑞凌1，阮波2，李雪松2(1．中铁二十五局集团第二工程有限公司，湖南衡阳421002;2．中南大学土木工程学院，湖南长沙410075)摘要:通过水泥砂浆桩无侧限抗压强度室内配比试验，研究不同水泥掺入比、不同掺砂量及不同龄期条件下水泥砂浆桩的无侧限抗压强度发展规律。