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12345678910111213144648494145465142454542464545464745504446484542414545464544424851414144434544454448444144464552494352424848404843464745484345414249454544434150464849444344454643434250445044434356434848595844584649464344444150414345484442464648454742504646454545484246495547465148464542483944534344434641504545444948444139404751424445444845.445.744.744.146.044.245.646.544.944.5////0.00.00.00.00.00.00.00.00.00.0////45.445.744.744.146.044.245.646.544.944.5////0.00.00.00.00.00.00.00.00.00.0////45.445.744.744.146.044.245.646.544.944.5////53.654.652.250.855.050.854.156.552.751.7////56.557.555.153.758.053.757.059.555.654.6////56.557.555.153.758.053.757.059.555.654.6////103%105%100%98%105%98%104%108%101%99%////报告日期2014年4月4日施工单位贵州桥梁建设集团有限责任公司工程名称清织高速三岔河大桥16#墩清镇岸4#节段回弹法检测混凝土强度计算书建设单位贵州高速公路集团有限公司报告编号检测角度R ma 水平试验日期2014年4月3日工程部位腹板回弹仪型号/编号检验依据JGJ/T23-2011炭化深度d m0.0混凝土输送方式K泵送浇注面R b a /R t a侧面修正值（Ra)测点个数n10混凝土强度等级F cuC554567 测点数弹击数12312131415891011检测角度修正系数检测角度修正结果浇注面修正系数浇注面修正结果16混凝土强度回弹值修正计算平均值评定结果单个等级平均值m f c cu标准差sf c cu非泵送强度换算值泵送砼强度换算值混凝土强度推算值(f cu,e )的确定最大值f c cu,max强度推算值f cu,e达到设计等级%59.5当N>10组时f cu =55.0最小值f c cu,minFcu,e=Mfccu-1.645SFccu96%56.1 1.953.753.0检查强度 合格mfc cu =sfc cu =计算批准审核试验记录。
混凝土泵输送混凝土回弹值强度换算表
引言
混凝土泵是在施工过程中常用的一种设备，可以高效地输送混凝土到施工现场。
然而，在混凝土泵输送过程中，混凝土可能会发生回弹，导致施工过程不理想。
为了解决这个问题，我们可以通过换算混凝土回弹值来评估其强度，进而作出相应的调整。
混凝土回弹值和强度换算表
下表列出了混凝土回弹值和强度之间的换算关系。
通过使用该表格，我们可以根据混凝土回弹值来确定其对应的强度等级。
例如，如果混凝土回弹值为8%，则对应的强度等级为C级。
使用方法：
1. 测量混凝土回弹值：使用合适的设备测量混凝土在泵输送过程中的回弹值，并记录下来。
2. 换算混凝土回弹值：根据上述表格，将测量到的混凝土回弹值换算为相应的强度等级。
3. 调整施工方案：根据混凝土的强度等级，进行相应的施工调整，确保施工效果符合设计要求。
注意事项：
- 测量混凝土回弹值时，应注意选取代表性样本，确保测量结果的准确性。
- 混凝土泵输送混凝土时，应采取适当的措施减少回弹现象，如调整泵送速度、使用适当的混凝土配合比等。
结论
混凝土泵输送混凝土回弹值强度换算表是一个有助于评估混凝土强度的工具。
通过测量混凝土回弹值并换算为强度等级，我们可以及时发现问题并采取相应的措施，确保施工质量。
同时，在实际使用中应注意准确测量和合理调整，以达到预期的施工效果。
参考文献
（此处列出参考文献的引用信息，包括书籍、期刊论文、相关网页等）
（注：此文档仅作为参考信息，具体施工操作应根据实际情况和相关要求进行。
）。
回弹日期2.51012345678910138393833383236343835237313637393633363434335363535343632343631437323537363336313534538373638373338373437634323432363438343332738343539353539363835839333139323438383832936393532373737353933103235353538343539343511373533363638393832361234343534363838323834133132353239393833333314373334353736393838321535333736333834353636163234333536343335343436.033.934.935.336.435.436.835.435.733.90.00.00.00.00.00.00.00.00.00.036.033.934.935.336.435.436.835.435.733.90.00.00.00.00.00.00.00.00.00.036.033.934.935.336.435.436.835.435.733.927.224.625.826.327.926.328.526.327.024.632.629.230.931.633.331.634.131.632.329.232.629.230.931.633.331.634.131.632.329.2130%117%124%126%133%126%136%126%129%117%sf c cu =f cu =25.0审 核试 验记 录评 定：1.629.2依据标准JGJ/T23-2011，强度推定值符合标准要求达到设计等级%29.0强度推算值f cu,e当N≥10组时Fcu,e=Mfccu-1.645SFccu116%炭化深度 d m 测点个数 n34.1最小值f c cu,min工程部位混凝土强度等级F cu JGJ/T23-2011回弹仪 型号/编号检测角度R ma 水平C25回弹法检测混凝土强度计算表建设单位工程名称施工日期检验依据泵送混凝土强度回弹值修正计算浇注面R b a /R t a混凝土输送方式K测点数弹击数侧面修正值（Ra)评定结果单个等级浇注面修正系数浇注面修正结果平均值 R m 检测角度修正系数检测角度修正结果mfc cu =构件名称31.6非泵送强度换算值泵送砼强度换算值混凝土强度推算值(f cu,e )的确定平均值m f c cu标准差sf c cu最大值f c cu,max。
回弹法检测混凝土强度计算表详解回弹法检测混凝土强度计算、换算在对建筑物鉴定和加固改造时，构件材料强度的测试是必不可少的项目。
混凝土强度的检测是国内外发展较早的检测项目，也是公认比较成熟的技术。
目前在实际检测实践中采用较多的是回弹法。
使用回弹法检测混凝土强度时，先要对回弹值进行计算，再根据回弹值推算出混凝土的强度。
▌回弹值的计算计算测区平均回弹值时，应从测区的 16 个回弹值中剔除 3 个最大值和 3 个最小值，余下的 10 个回弹值按下列公式计算：式中：Rm算值——测区平均回弹值，精确至0.1; Ri——第i个测点的回弹值。
现代技术的数显回弹仪，将该计算方法嵌入数显回弹仪主机内，可自动计算出回弹值。
回弹仪非水平方向检测混凝土浇筑侧面时，应按下列公式修正：式中：——非水平方向检测时测区的平均回弹值，精确至0.1;——非水平方向检测时回弹值修正值，按JGJ/T232011的附录表C采用。
回弹仪水平方向检测混凝土浇筑表面或浇筑底面时，应按下列公式修正：公式中：——水平方向检测混凝土浇筑表面、底面时，测区的平均回弹值，精确至0.1；——混凝土浇筑表面、底面回弹值的修正值，按JGJ/T232011附录表D采用。
▌混凝土强度的计算结构或构件第i个测区混凝土强度换算值，可根据得的平均回弹值（Rm）和平均碳化深度值按统一测强曲线换算表（JGJ/T232011的附录A表）得出。
当测区数不少于10个时，应计算强度标准差。
平均值及标准差应按下列公式计算：结构或构件的现龄期混凝土强度推定值fcu,e应符合下列规定：当构件测区数少于10个当构件测区数≥10个对于按批量检测的构件，当该批构件混凝土强度标准差出现下列情况之一时，则该批构件应全部按单个构件构件检测。
a.当该批构件混凝土强度平均值小于25MPa时＞4.5MPa；b.当该批构件混凝土强度平均值不小于25MPa时＞5.5MPa。
详见JGJ/T23-2011内P14在求得平均回弹值后，计算出平均碳化值，再进行强度的换算，方可得出平均强度值。
回弹法检测混凝土强度自动计算表测区混凝土强度换算表回弹值修非泵送测区混凝土强度换算表平均回弹值Rm20.020.120.220.320.420.520.620.720.820.921.021.121.221.321.421 .521.621.721.821.922.022.122.222.322.422.522.622.722.822.923.023 .123.223.323.423.523.623.723.823.924.0测区混凝土强度换算值fccu,i(Mpa)平均碳化深度值dm(mm)010.310.410.510.610.710.911.011.111.211.311.411.511.611.71 1.811.912.012.212.312.412.512.612.712.913.013.113.213.313.413.61 3.713.813.914.014.114.314.414.514.614.814.90.510.110.210.310.410 .510.710.810.911.011.111.211.311.411.511.611.711.812.012.112.212 .212.312.412.612.712.812.913.013.113.313.413.513.613.713.814.014 .114.214.314.514.61.01.52.02.53.03.54.04.55.05.5≥6.010.010.110.210.310.410.510.610.710.810.911.011.111.211.311.411. 611.711.811.912.012.112.312.412.512.512.612.712.913.013.113.213 .313.413.613.713.813.914.114.210.110.210.310.410.510.610.710.810.911.011.011.211.311.411.511. 611.711.912.012.112.112.212.312.512.612.712.812.913.013.113.213 .313.413.613.710.010.110.210.310.410.510.610.710.810.911.011.111.211.311.411. 511.611.711.812.012.112.212.212.312.412.612.712.812.813.013.110.010.110.210.410.510.610.610.710.810.911.011.111.211.311.411. 511.611.711.811.912.012.112.212.312.412.612.710.110.210.210.310.410.610.710.810.810.911.011.111.211.311.411. 511.611.711.811.912.012.112.210.010.210.310.410.410.510.610.710.810.911.011.111.211.311.411. 511.511.711.810.010.110.210.310.310.410.510.610.710.810.911.011.111.211.211. 411.510.110.210.310.410.410.610.710.810.810.911.010.010.110.210.310.410.510.510.610.710.110.210.210.310.410.1平均回弹值Rm24.124.224.324.424.524.624.724.824.925.025.125.225.325.425.52 5.625.725.825.926.026.126.226.326.426.526.626.726.826.927.027.1 27.227.327.427.527.627.727.827.928.028.128.228.3测区混凝土强度换算值fccu,i(Mpa)平均碳化深度值dm(mm)015.015.115.315.415.515.615.815.916.116.216.316.416.616.7 16.816.917.117.217.417.517.717.817.918.018.218.318.518.618.818. 919.019.119.319.419.619.719.920.020.220.320.520.620.80.514.714. 815.015.115.215.315.515.615.815.916.016.116.316.416.516.616.816 .917.117.217.317.417.517.617.817.918.118.218.418.518.618.718.91 9.019.219.319.519.619.719.719.920.020.21.014.314.314.514.614.71 4.815.015.115.315.415.515.615.815.916.016.116.216.316.516.616.8 16.917.017.117.317.417.617.717.918.018.118.118.318.418.618.718. 919.019.119.219.419.519.61.513.813.914.114.214.314.414.514.614. 814.915.015.115.315.415.615.715.815.816.016.116.316.416.516.616 .716.817.017.117.317.417.517.617.717.817.918.018.118.218.318.418.518.61 8.72.013.213.313.513.613.713.713.914.014.214.314.414.414.614.71 4.814.915.015.115.315.415.615.715.815.816.016.116.316.416.516.6 16.716.816.917.017.117.217.317.417.517.617.717.817.92.512.812.8 13.013.113.213.313.413.513.713.813.913.914.114.214.314.414.514.614.814.915.015.115.215.315.515.615.715.816.016.116.216.216.316 .416.516.616.716.816.917.017.117.217.33.012.312.412.512.612.712 .812.913.013.213.313.413.413.613.713.813.914.014.114.314.414.51 4.614.714.814.915.015.215.315.415.515.615.715.815.916.016.116.2 16.316.416.516.616.716.83.511.911.912.112.212.312.312.512.612.7 12.812.913.013.113.213.313.413.513.613.713.813.914.014.114.214. 314.414.514.614.714.814.915.015.115.215.315.415.515.615.715.815 .916.016.14.011.611.611.811.912.012.012.112.212.412.512.612.612 .812.913.013.013.113.213.413.513.613.713.813.914.014.114.214.31 4.514.614.714.714.814.915.015.115.215.315.415.415.515.615.74.51 1.111.211.311.411.511.511.711.811.912.012.112.112.312.412.512.5 12.612.712.913.013.113.213.313.313.413.513.713.813.914.014.114. 114.214.314.414.514.614.714.814.814.915.015.15.010.810.911.011. 111.211.211.311.411.611.711.811.811.912.012.112.212.312.412.512 .612.712.812.913.013.113.213.313.413.513.613.713.813.914.014.11 4.114.214.214.314.414.514.614.75.510.510.610.710.810.910.911.01 1.111.211.311.411.511.611.711.811.811.912.012.112.212.312.412.5 12.612.712.812.912.913.013.113.213.313.413.413.513.613.713.713. 813.914.014.014.1≥6.010.210.310.410.410.510.610.710.710.810.91 1.011.011.111.211.311.311.411.511.611.611.711.811.912.012.112.1 12.212.312.412.412.512.612.712.712.812.913.013.013.113.213.313. 313.4平均回弹值Rm28.428.528.628.728.828.929.029.129.229.329.429.529.629.729.82 9.930.030.130.230.330.430.530.630.730.830.931.031.131.231.331.4 31.531.631.731.831.932.032.132.232.332.432.532.6测区混凝土强度换算值fccu,i(Mpa)平均碳化深度值dm(mm)020.921.121.221.421.521.721.822.022.122.322.422.622.722.9 23.023.223.323.523.623.823.924.124.324.524.624.824.925.125.225. 425.625.825.926.126.226.426.526.726.927.127.227.427.60.520.320. 520.620.820.921.021.121.321.421.621.721.922.022.222.322.522.622 .822.923.123.223.423.623.823.924.124.224.324.424.624.825.025.125.325.425.625.725.926.126.326.426.626.81.019.719.920.020.120.22 0.420.520.720.821.021.121.221.321.521.621.821.922.122.222.422.5 22.722.823.023.123.323.423.623.723.924.124.224.324.524.624.824. 925.125.325.525.625.825.91.518.819.019.119.319.419.519.619.819.920. 120.220.320.420.620.720.921.021.121.221.421.521.721.922.022.122. 322.422.622.722.923.023.223.323.523.623.823.924.124.224.424.524. 724.82.018.018.118.218.418.518.618.718.919.019.219.319.419.519.7 19.819.920.020.220.320.520.620.820.921.121.221.321.421.621.721.9 22.022.222.322.422.522.722.823.023.123.323.423.623.72.517.417.51 7.617.717.818.018.118.218.318.518.618.718.819.019.119.219.319.51 9.619.719.820.020.220.320.420.620.720.820.921.121.221.421.521.62 1.721.922.022.222.322.522.622.822.93.016.917.017.117.217.317.417 .517.617.717.817.918.118.218.318.418.518.618.818.919.019.119.319 .419.619.719.819.920.120.220.420.520.620.720.921.021.121.221.421 .521.721.822.022.13.516.216.316.416.516.616.716.816.917.017.117. 217.417.517.617.717.817.918.118.218.318.418.618.718.818.919.119. 219.319.419.619.719.819.920.120.220.320.420.620.720.820.921.121.34.015.815.916.016.116.216.316.416.516.616.716.816.917.017.117.2 17.317.417.517.617.717.817.918.018.118.218.318.418.518.618.818.9 19.119.219.319.419.519.619.819.920.020.120.320.44.515.215.315.41 5.515.615.715.815.916.016.116.216.316.416.516.616.716.816.917.01 7.117.217.417.517.617.717.817.918.018.118.318.418.518.618.818.91 9.019.119.319.419.519.619.819.95.014.814.915.015.115.215.315.415 .515.615.715.815.916.016.116.216.316.416.516.616.716.816.917.017 .117.217.317.417.517.617.717.817.918.018.118.218.318.418.518.618.718.818.919.05.514.214.314.314.414.514.614.614.714.814.915.015. 115.115.215.315.415.415.515.615.715.815.916.016.116.216.316.416. 516.616.816.917.017.117.217.317.417.517.617.717.817.918.018.1≥6 .013.513.613.613.713.813.913.914.014.114.214.214.314.414.514.514 .614.714.814.915.015.115.215.215.315.415.515.515.615.715.815.815 .916.016.116.216.316.416.516.616.716.816.917.0测区混凝土强度换算值fccu,i(Mpa)平均碳化深度值dm(mm)027.827.928.128.228.428.628.828.929.129.329.529.629.830.03 0.230.330.530.730.931.131.331.431.631.832.032.132.332.532.732.93 3.133.333.533.633.834.034.234.434.634.835.035.235.40.527.027.127 .327.427.627.727.928.028.228.428.628.728.929.129.329.429.629.830 .030.230.430.530.730.831.031.131.331.531.731.932.132.332.532.632 .833.033.233.433.633.834.034.134.31.026.126.226.426.526.726.827.027.127.327.427.627.727.928.028.228.328.528.628.828.929.129.229 .429.629.829.930.130.230.430.630.831.031.131.231.431.631.832.03 2.232.432.632.732.91.525.025.125.325.425.625.725.926.026.226.42 6.526.626.726.826.927.027.127.227.327.427.527.627.828.028.128.2 28.428.628.829.029.229.329.529.629.829.930.130.330.530.630.831. 031.12.023.924.024.224.324.524.624.824.925.125.225.325.425.525. 625.725.825.926.026.126.226.326.426.626.726.927.027.227.327.527 .627.828.028.128.228.428.628.828.929.129.229.429.629.72.523.123 .223.323.423.623.723.924.024.124.224.324.424.524.624.724.824.92 5.025.125.225.325.425.625.825.926.026.226.326.526.626.827.027.1 27.227.427.527.727.928.128.228.428.528.73.022.222.322.522.622.8 22.923.023.123.223.323.423.523.623.723.823.924.024.124.224.324. 424.524.724.824.925.025.225.425.625.725.926.026.126.226.426.526 .726.827.027.127.327.527.63.521.421.521.621.721.922.022.222.322 .522.622.722.822.923.023.123.223.323.423.523.623.723.823.924.024.124.224.324.424.624.724.925.025.125.225.425.525.725.826.026.1 26.326.426.54.020.520.620.820.921.121.221.321.421.621.721.821.9 22.022.122.222.322.422.522.622.722.822.923.123.223.323.423.623. 723.924.024.224.324.424.524.724.825.025.125.325.425.625.725.84. 520.020.120.220.320.420.520.620.720.820.921.021.121.221.321.421 .521.621.721.821.922.022.122.222.322.422.522.722.822.923.023.22 3.323.423.523.723.824.024.124.324.424.524.624.75.019.119.219.31 9.419.519.619.719.819.920.020.120.220.320.420.520.620.720.820.9 21.021.121.221.321.421.521.621.721.821.922.022.122.222.322.422. 522.622.722.822.923.023.123.223.35.518.218.318.418.518.618.718. 818.919.019.119.219.319.419.519.619.719.819.819.920.020.120.220 .320.420.520.620.720.820.921.021.121.221.321.421.521.621.721.82 1.922.022.122.222.3≥6.017.117.217.317.417.517.617.717.817.918. 018.118.218.318.318.418.418.518.618.718.818.919.019.119.219.319 .419.519.619.719.819.920.020.120.220.320.420.520.620.820.921.02 1.121.2平均回弹值Rm41.341.441.541.641.741.841.942.042.142.242.342.442.542.642.74 2.842.943.043.143.243.343.443.543.643.743.843.944.044.144.244.3 44.444.544.644.744.844.945.045.145.245.345.445.5测区混凝土强度换算值fccu,i(Mpa)平均碳化深度值dm(mm)044.344.544.845.045.245.445.745.946.146.346.546.747.047.24 7.447.647.948.148.348.548.849.049.249.449.749.950.250.450.650.85 1.平均回弹值Rm45.645.745.845.946.046.146.246.346.446.546.646.746.846.947.04 7.147.247.347.447.547.647.747.847.948.048.148.248.348.448.548.6 48.748.848.949.049.149.249.349.449.549.649.749.8测区混凝土强度换算值fccu,i(Mpa)平均碳化深度值dm(平均回弹值Rm49.950.050.150.250.350.450.550.650.750.850.951.051.151.251.35 1.451.551.651.751.851.952.052.152.252.352.452.552.652.752.852.9 53.053.153.253.353.453.553.653.753.853.954.054.1测区混凝土强度换算值fccu,i(M平均回弹值Rm54.254.354.454.554.654.754.854.955.055.155.255.355.455.555.65 5.755.855.956.056.156.256.356.456.556.656.756.856.957.057.157.2 57.357.457.557.657.757.857.958.058.158.258.358.4测区混凝土强度换算值fccu,i(Mpa)平均碳化深度值dm(mm)00.51.01.52.02.53.058.258.458.658.959.159.359.559.759.93. 556.756.957.157.357.557.757.958.258.458.658.859.059.259.559.74. 055.155.455.655.856.056.256.456.656.857.057.257.457.657.858.058 .358.558.758.959.159.359.559.74.552.152.352.552.752.953.153.253 .453.653.854.054.254.454.654.855.055.255.455.655.856.056.256.45 6.656.857.057.257.457.657.858.058.258.458.758.959.159.359.559.7 5.049.850.050.250.450.550.750.951.151.351.551.651.852.052.252.4 52.652.853.053.253.453.553.753.954.154.354.554.754.955.155.355. 555.755.956.156.356.556.756.957.057.257.457.657.85.547.547.747.948.148.248.448.54 8.748.949.149.349.549.649.850.050.250.350.550.750.951.151.351.4 51.651.852.052.252.452.552.752.953.153.353.553.753.954.054.254. 454.654.855.055.2≥6.046.046.246.346.546.646.847.047.247.347.54 7.747.948.048.248.448.648.748.949.149.349.449.649.850.050.150.3 50.550.750.851.051.251.451.651.851.952.152.352.552.752.953.053. 253.4平均回弹值Rm58.558.658.758.858.959.059.159.259.359.459.559.659.759.859.960 .0测区混凝土强度换算值fccu,i(Mpa)平均碳化深度值dm(mm)00.51.01.52.02.53.03.54.04.55.058.058.258.458.658.859.059 .259.459.659.85.555.455.655.855.956.156.356.556.756.957.157.357 .557.757.958.158.3≥6.053.653.854.054.154.354.554.754.955.155.2 55.455.655.856.056.256.4。
