回弹法检测泵送混凝土修正表
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回弹法检测泵送混凝土修正表精选文档
TTMS system office room 【TTMS16H-TTMS2A-TTMS8Q8-
附录B 测区泵送混凝土强度换算表表B 测区泵送混凝土强度换算表
注:表中未注明的测区混凝土强度换算值为小于10 MPa 或大于60MPa 。
表中数值是根据曲线方程)0173.0(9400.110034488.0dm R f -=计算。
附录C 非水平方向检测时的回弹值修正值
注:1 αm R 小于20或大于50时,分别按20或50查表;
2 表中未列入的相应于αm R 的修正值αm R ,可用内插法求得,精确至。
附录D 不同浇筑面的回弹值修正值 表D 不同浇筑面的回弹值修正值
注:1t m R 或b
m R 小于20或大于50时,分别按20或50查表;
2表中有关混凝土浇筑表面的修正系数,是指一般原浆抹面的修正值; 3表中有关混凝土浇筑底面的修正系数,是指构件底面与侧面采用同一类模板在正常浇筑情况下的修正值;
4表中未列入相应于t m R 或b
m R 的t a R 和b a R ,可用内插法求得,精确至。
附录B 测区泵送混凝土强度换算表表B 测区泵送混凝土强度换算表
注:表中未注明的测区混凝土强度换算值为小于10 MPa或大于60MPa。
表中数值是根据曲线方程)
9400
(
.110
.0
0173
f-
=计算。
R
034488
.0dm
附录C 非水平方向检测时的回弹值修正值
表C 非水平方向检测时的回弹值修正值
注:1
R小于20或大于50时,分别按20或50查表;
α
m
2 表中未列入的相应于
R的修正值αm R,可用内插法求得,精确
α
m
至。
附录D 不同浇筑面的回弹值修正值表D 不同浇筑面的回弹值修正值
注:1t
R或b m R小于20或大于50时,分别按20或50查表;
m
2表中有关混凝土浇筑表面的修正系数,是指一般原浆抹面的修正值;
3表中有关混凝土浇筑底面的修正系数,是指构件底面与侧面采用同一类模板在正常浇筑情况下的修正值;
4表中未列入相应于t
R或b m R的t a R和b a R,可用内插法求得,精确
m
至。
回弹法检测泵送混凝土修正表概述混凝土是重要的建筑材料,通过泵送混凝土可以提高工程施工效率和质量。
回弹法是常用的混凝土强度检测方法,通过回弹力和混凝土抗压强度之间的关系来推算混凝土抗压强度。
但是,泵送混凝土存在着许多复杂的因素,如混凝土的细度、配合比、泵送距离等,这些因素都会影响到泵送混凝土的强度。
因此,需要对回弹法进行修正,以适用于泵送混凝土的检测。
修正表针对泵送混凝土的回弹法检测需要进行修正,修正系数的计算需要根据实际情况进行调整。
下表中列出了回弹法检测泵送混凝土修正系数的修正表:混凝土配合比修正系数1:2:3 0.851:3:5 0.901:4:6 0.95上表中,混凝土配合比是指混凝土中水泥、砂和石料的比例,例如1:2:3表示混凝土中水泥、砂和石料分别占总重量的1/6、1/3和1/2。
在实际检测中,首先需要根据回弹法测得的弹性模量计算出混凝土的抗压强度,然后利用修正系数进行修正。
修正后的抗压强度应为:修正后抗压强度 = 回弹法计算抗压强度 × 修正系数例如,如果回弹法计算得到的抗压强度为20MPa,混凝土配合比为1:3:5,则修正后的抗压强度为:修正后抗压强度 = 20 × 0.90 ≈ 18MPa注意事项在进行回弹法检测泵送混凝土的时候,需要注意以下事项:1.回弹针应在测试表面垂直于表面的方向上进行敲击,并且每个位置应至少测试三次,最终取平均值。
2.混凝土表面和回弹针应保持平行,且回弹针应垂直于表面的中心线。
3.测试表面应平整,无明显裂缝和凹凸不平的地方。
4.测试点密度应根据混凝土工程的实际情况进行确定,一般为每4~6m²一个测试点。
5.在进行检测前应清洁混凝土表面,以便尽量减小测量误差。
回弹法检测泵送混凝土是常用的检测方法之一,修正表提供了一种修正系数计算的方法,可以有效提高检测准确性。
在进行检测时,需要注意细节,避免干扰因素对结果产生影响。
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。
回弹法检测原始记录表
工程名称:第页编号回弹值Ri 构件测区123456 7 8 910 111213 14 1
2
3
4
5
6
7
8
9
10
测面状态侧面、表面、底面、干、湿润回型号:编号:
弹
率定值:测试角度а水平、向上、向下仪
共页
碳化深度1516R m d i(㎜)
回弹仪检定证号:
测试人员资格证号:
测试:记录:计算:测试日期:年月日
构件混凝土强度计算表
工程名称:
构件名称及编号:第页共页表项测
12345678910 目区
测区均匀值
角度修正当
回弹值角度修正后
浇筑面修正当
浇筑面修正后
均匀碳化深度值d m(㎜)
测区强度换算值( MPa)
泵送混凝土测区强度修正当(MPa)
测区强度值 f c cu(MPa)
强度计算( MPa)
m c fcu=S c fcu= f c fcu.min=
n=
使用测区强度换算表名称:规程地域专用备注:
测试:计算:复核:计算日期:年月日。
泵送混凝土回弹值对照表的意义一、混凝土回弹仪回弹值的计算方法1、计算测区平均回弹值,应从该测区的16个回弹值中剔除3个最大值和3个最小值,余下的10个回弹值按下式计算:10式中Rm—测区平均回弹值,精确至0.1;Ri—第i个测点的回弹值。
2、非水平方向时按下式修正:RmRi110iRmRmRa式中Rm—非水平检测时测区的平均回弹值,精确至0.1;Ra—非水平状态检测时的回弹修正值,按附表查询。
3、水平方向检测混凝土浇筑顶面或底面时按下式修正:ttRmRmRabbRmRmRatb式中Rm、Rm—水平方向检测混凝土浇筑表面、底面时的测区回弹值平均值;bRat、Ra—混凝土浇筑表面、底面回弹值的修正值,按附表查询。
4、当检测时回弹仪既非水平状态有非混凝土的浇筑侧面时,应先修正角度,再修正浇筑面。
上述的内容就是混凝土回弹仪回弹值的计算方法,此外,需要注意的是:混凝土回弹仪在检测时,回弹仪的轴线应始终垂直于结构或构件的检测面,缓慢施压,准确度数,快速复位。
二、举例子如下:泵送混凝土设计强度C50 柱子现场回弹值(这是其中一根,每根柱子只有1个测区)42 42 50 42 50 42 41 4242 40 41 42 51 50 42 42每层楼检测了6根柱子,其余5根的数据也差不多。
计算依据标准:《JGJ/T 23-2001 回弹法检测混凝土抗压强度技术规程》去掉3个最大值(51、50、50)、3个最小值(40、41、41)。
余下的10个回弹值,平均值:42.8 。
弹柱子是水平回弹,不用修正。
有的测区数只有6个,不够10个,因此这六个测区选最小值进行评定。
碳化深度没有数据,设为0.5;(碳化深度大于2.0时,需钻芯)查附录A“测区混凝土强度换算表”,得45.7MPa。
如果为泵送混凝土,再按附录B“泵送混凝土测区混凝土强度换算值的修正值”进行修正。
这里设碳化深度为0.5mm,那么修正值为 3.0MPa。
则最终的抗压强度为:45.7+3.0=48.7MPa(97.4%)混凝土回弹仪回弹值计算1、计算测区平均回弹值,应从该测区的16 个回弹值中剔除3 个最大值和3 个最小值,余下的10 个回弹值按下式计算:10 式中Rm —测区平均回弹值,精确至0.1;Ri —第i个测点的回弹值。
附录B 测区泵送混凝土强度换算表表B 测区泵送混凝土强度换算表
注:表中未注明的测区混凝土强度换算值为小于10 MPa 或大于60MPa 。
表中数值是根据曲线方程)0173.0(9400
.110034488.0dm R
f -=计算。
附录C 非水平方向检测时的回弹值修正值 表C 非水平方向检测时的回弹值修正值
注:1 αm R 小于20或大于50时,分别按20或50查表;
2 表中未列入的相应于αm R 的修正值αm R ,可用内插法求得,精确至0.1。
附录D 不同浇筑面的回弹值修正值 表D 不同浇筑面的回弹值修正值
注:1t m R 或b
m R 小于20或大于50时,分别按20或50查表;
2表中有关混凝土浇筑表面的修正系数,是指一般原浆抹面的修正值;
3表中有关混凝土浇筑底面的修正系数,是指构件底面与侧面采用同一类模板在正常浇筑情况下的修正值;
4表中未列入相应于t m R 或b
m R 的t a R 和b a R ,可用内插法求得,精确至0.1。