标准规范下载简介
DB62／T 3155-2018 兰州市新区回弹法检测泵送混凝土抗压强度技术规程.pdf4.2.1检测时，回弹仪的轴线应始终垂直于构件的混凝土检测 面，缓慢施压，准确读数，快速复位。 4.2.2测点宜在测区范围内均匀分布，相邻两测点的净距不宜小 于20mm；测点距外露钢筋、预理件的距离不宜小于30mm。测点 不应在气孔或外露石子上，同一测点只应弹击一次。每个测区应 记取16个回弹值，每个测点的回弹值读数应精确至1。
4.3.1回弹值测量完毕后，应在有代表性的测区上测量碳化深度 直，测点数量不应少于构件测区数的30%，取其平均值作为该构件 每个测区的碳化深度值。当碳化深度值极差大于2.0mm时，应在 每个测区分别测量碳化深度值，并按每个测区碳化深度值查取相 对应的测区强度换算值
4.3.2碳化深度值测量应符合下
1可采用适当的工具在测区表面凿一孔洞，其直径约为 15mm，深度应大于混凝土的碳化深度； 2孔洞中的粉末和碎屑应除净TB／T 3199.2-2018 电气化铁路接触网用绝缘子 第2部分：棒形复合绝缘子，且不得用水擦洗： 3应采用浓度为1%~2%的酚然酒精溶液滴在孔洞内壁的 边缘处，当已碳化与未碳化界限清晰时，用碳化深度测量工具测量 已碳化与未碳化混凝土交界面到混凝土表面的垂直距离，测量不 应少于3次，每次读数应精确至0.25mm； 4应取三次测量的平均值作为检测结果，并应精确至0.5mm。 4.3.3碳化深度测量时，当碳化深度值不天于6.0mm时，精确至 0.5mm；当碳化深度值大于6.0mm时，取6.0mm作为该测区或该构 件碳化深度值
5.0.1计算测区平均回弹值时，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,其余的10个回弹值按下式计算：
式中：R一一测区或试块平均回弹值,精确至0.1; R，一一测区第i个测点的回弹值。 5.0.2非水平方向检测混凝土浇筑侧面时，测区的平均回弹值应 按下式修正：
式中:Rma 非水平方向检测时测区的平均回弹值，精确至0.1； Ra——非水平方向检测时回弹值修正值,应按本规程附录
R。一非水平方向检测时回弹值修正值，应按本规程附录 E取值。 5.0.3当检测时回弹仪为非水平方向且测试面为混凝土的浇筑 底面时，应先按本规程附录E对回弹值进行角度修正，再按本规程 附录C取值
6.0.1本规程规定的强度换算方法适用于符合下列条件的泵送 混凝土： 1兰州新区泵送混凝土：粗骨料为碎石； 2混凝土采用的水泥、砂、石、外加剂、掺合料、拌合用水应符 合现行国家有关标准； 3采用普通成型工艺； 4自然养护，且泵送混凝土表面为十燥状态： 5龄期为14d ~ 1000d; 6泵送混凝土抗压强度为10.1MPa~85.0MPa。 6.0.2 当符合6.0.1条且采用标称能量为2.207J回弹仪，可按本规 程附录A取值。 6.0.3当符合6.0.1条且采用标称能量为5.5J回弹仪，可按本规程 附录B取值。 6.0.4当符合6.0.1条且采用标称能量为2.207J回弹仪，混凝土龄 期为3d~13d时，可按本规程附录D取值。 6.0.5当有下列情况之一时，测区泵送混凝土强度值不得按本规 程附录A~附录D查取： 1特种成型工艺制作的混凝土； 2检测部位曲率半径小于250mm； 3潮湿或浸水混凝土： 4 粗骨料为非碎石的泵送混凝土； 5表面受到腐蚀介质侵蚀的混凝土。 6.0.6 当构件的测区数不少于10个时，各测区混凝土强度换算值
的平均值及标准差应按下列公式计算：
式中:m 测区泵送混凝土强度换算值的平均值（MPa），精确 到0.1MPa; n 对于单个检测的构件，取该构件的测区数；对批量检 测的构件，取被抽检构件测区数之和： S，一一构件测区泵送混凝土强度换算值的标准差（MPa)， 精确到0.01MPa
6.0.7采用标称能量为2.207J回弹仪检测时，构件的现
6.0.7采用标称能量为2.207J回弹仪检测时，构件的现龄期混凝 土强度推定值（J.ue）应符合下列规定：
1当构件的测区抗压强度换算值中出现小于16.0MPa的值 时，该构件的混凝土抗压强度推定值J取小于16.0MPa的值。当 被测试混凝土龄期为3d~13d时，构件的测区抗压强度换算值中 出现小于10.1MPa的值时，该构件的混凝土抗压强度推定值Jc取 小于10.1MPa的值： 2当构件的测区抗压强度换算值中出现大于50.0MPa的值 时，按单个构件计算时，推定值f.取测区抗压强度换算值中的最 小值；按批量计算时，大于50.0MPa的测区抗压强度换算值取 50.0MPa。当测试混凝土龄期为3d~13d时，构件的测区抗压强度 换算值中出现大于39.2MPa的值时，按单个构件计算时，推定值 f取测区抗压强度换算值中的最小值；按批量计算时，大于 39.2MPa的测区抗压强度换算值取39.2MPa; 3当该构件测区数少于10个时,应按下式计算：
fo..= fou.mi
5当批量检测时，应按下式计算
式中：K一一推定系数,宜取1.645。当需要进行推定强度区间 时，可按国家现行有关标准的规定取值。
时，可按国家现行有天标准的规定取值。 注：构件的混凝土强度推定值是指相应于强度换算值总体分布中保证率不 低于95%的构件中的现龄期混凝土抗压强度值。 6.0.8采用标称能量为2.207J回弹仪检测时，对按批量检测的构 牛，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 牛应全部按单个构件检测： 1当该批构件混凝土强度平均值小于25MPa，S大于 4.50MPa时； 2当该批构件混凝土强度平均值不小于25MPa且不大于 50.0MPa，Sf大于5.50MPa时。 6.0.9采用标称能量为5.5J回弹仪检测时，构件的现龄期混凝土 强度推定值（f）应符合下列规定： 1当构件的测区抗压强度换算值中出现小于50.0MPa的值 时，该构件的测区抗压强度推定值Jeue取小于50.0MPa的值： 2当构件的测区抗压强度换算值中出现大于85.0MPa的值 时，按单个构件计算时，推定值于.ue取测区抗压强度换算值中的最 小值；按批量计算时，大于85.0MPa的测区抗压强度换算值取 85.0MPa; 3当该构件测区数少于10个时，应按下式计算：
fou.e = fou.min
武中: fam 构件中测区泵送混凝土强度换算值的最小值
4当该构件测区数不少于10个或按批量检测时，应按下式计 算：
注：构件的混凝土强度推定值是指相应子强度换算值总体分布中保证率不 低于95%的构件中的现龄期混凝土抗压强度值。 6.0.10采用标称能量为5.5J回弹仪检测时，对按批量检测的构 件，当该批构件混凝土强度标准差大于6.0MPa时，则该批构件应 全部按单个构件检测。 6.0.11回弹法检测泵送混凝土抗压强度原始记录及报告可按本 规程附录F及附录G的格式编写。
附录A泵送混凝土测区强度换算表表A泵送混凝土测区强度换算平测区混凝土强度换算值f（MPa）均回平均碳化深度值d.（mm）弹值0.00.51.01.52.03.03.54.04.35.05.5R..20.616.120.816.316.216.021.016.616.416.216.121.216.816.716.516.316. 121.417.116.916.716.516.416.216.021.617.417.217.016.816.616.416.216.021.817.617.417.217.016.816.716.516.316.122.017.917.717.517.317.116.916.716.516.316.216.022.218.117.917.717.517.317.116.916.816.616.416.216.022.418.418.218.017.817.617.417.217.016.816.66.416.316.122.618.618.418.218.017.817.617.417.217.016.916.716.516.322.818.918.718.518.318.117.917.717.517.316.916.716.523.019.219.018.718.518.318.117.917.717.517.317.116.916.823.219.419.219.018.818.618.418.218.017.817.617.4.17.023.419.719.519.319.018.818.68.418.218.017.216
续表A平测区混凝土强度换算值fs（MPa）均回平均碳化深度值d.（mm）弹值0.00.51.01.52.02.53.03.54.04.5 5.05.5≥>6R..23.620.019.719.519.319.118.918.718.518.318.117.917.717.523.820.220.019.819.619.319.118.918.718.518.318.117.917.724.020.520.320.019.819.619.419.219.018.718.518.318.117.924.220.820.520.320.119.919.619.419.219.018.818.618.418.224.421.020.820.620.320.119.919.719.519.219.018.818.618.424.621.321.120.820.620.420.219.919.719.519.319.118.918.624.821.621.321.120.920.620.420.220.019.719.519.319.118.925.021.921.621.421.120.920.720.420.220.019.819.619.319.125.222.121.921.721.421.220.920.720.520.220.019.819.619.425.422.422.221.921.721.421.221.020.720.520.320.119.819.625.622.722.422.222.021.721.521.221.020.820.520.320.119.925.823.022.722.522.222.021.721.521.321.020.820.620.320.126.023.323.022.722.522.222.021.821.521.321.020.820.620.326.223.523.323.022.822.522.322.021.821.521.321.20.820.626.423.823.623.323.022.822.522.322.021.821.621.321.120.826.624.123.823.623.323.122.822.622.322.121.821.621.321.126.824.424.123.923.623.323.122.822.622.322.121.821.621.327.024.724.424.123.923.623.423.122.822.622.322.121.821.627.225.024.724.424.223.923.623.423.122.822.622.322.121.817
续表A平测区混凝土强度换算值fa（MPa）均回平均碳化深度值d.（mm）弹值0.00.51.01.52.02.53.03.5 4.04.55.05.5>6R..27.425.325.024.724.424.223.923.623.423.122.922.622.422.127.625.625.325.024.724.424.223.923.623.423.122.922.622.427.825.925.625.325.024.724.524.223.923.623.423.122.922.627.024.724.424.123.923.623.423.122.822.622.322.21.821.627.225.024.724.424.223.923.623.423.122.822.622.32221.827.425.325.024.724.424.223.923.623.423.122.922.2222.127.625.625.325.024.724.424.223.923.623.423.122.922.622.427.825.925.625.325.024.724.524.223.923.623.423.22.22.628.026.225.925.625.325.024.724.524.223.923.723.423.22.928.226.426.225.925.625.325.024.724.524.223.923.723.423.128.426.726.426.225.925.625.325.024.724.524.223.923.723.428.627.026.726.426.225.925.625.325.024.724.524.223..923.728.827.327.026.726.426.225.925.625.325.024.724.524.223.929.027.627.327.026.726.426.25.925.625.325.024.724.424.229.227.927.627.327.026.726.426.125.825.625.325.024.724.429.428.327.927.627.327.026.726.426.125.825.525.325.024.729.628.628.227.927.627.327.026.726.426.125.825.525.325.029.828.928.528.227.927.627.27.026.726.426.125.825.525.230.029.228.828.528.227.92762727.026.726.426.25..825.518
续表A平测区混凝土强度换算值f（MPa）均回平均碳化深度值d.（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5>6R.m.30.229.529.128.828.528.227.927.627.327.026.726.426.125.830.429.829.529.128.828.528.227.927.527.226.926.626.326.030.630.129.829.429.128.828.528.127.827.527.226.926.626.330.830.430.129.729.429.128.828.428.127.827.527.226.926.631.030.730.430.029.729.429.128.728.428.127.827.527.226.931.231.030.730.330.029.729.329.028.728.428.127.827.427.131.431.331.030.730.330.029.629.329.028.728.428.027.727.431.631.731.331.030.630.329.929.629.329.028.628.328.027.731.832.031.631.330.930.630.229.929.629.228.928.628.328.032.032.331.931.631.230.930.530.229.929.529.228.928.628.232.232.632.331.931.531.230.830.530.229.829.529.228.828.532.432.932.632.231.931.531.230.830.530.129.829.529.128.832.633.332.932.532.231.831.531.130.830.430.129.729.429.132.833.633.232.832.532.131.831.431.130.730.430.029.729.433.033.933.533.232.832.432.131.731.431.030.730.330.029.733.234.233.933.533.132.732.432.031.731.331.030.630.329.933.434.634.233.833.433.132.732.332.031.631.330.930.630.233.634.934.534.133.733.433.032.632.331.931.631..230.930.533.835.234.834.434.133.733.332.932.632.231.931.531.130.819
续表A平测区混凝土强度换算值（MPa）均回平均碳化深度值dm（mm）弹值0.00.51.01.52.02.5 3.03.54.04.55.05.5≥6R..34.035.535.234.834.434.033.633.232.932.532.131.831.431.134.235.935.535.134.734.333.933.633.232.832.432.131.731.434.436.235.835.435.034.634.233.933.533.132.732.432.031.734.636.536.135.735.334.934.634.233.833.433.132.732.332.034.836.936.536.135.735.334.934.534.133.733.433.032.632.335.037.236.836.436.035.635.234.834.434.033.733.33232.535.237.637.136.736.335.935.535.134.734.334.033.633.232.835.437.937.537.136.636.235.835.435.034.734.333.933.533.135.638.237.837.437.036.636.235.835.435.034.634.233.833.435.838.638.137.737.336.936.536.135.735.334.934.534.33.736.038.938.538.137.637.236.836.436.035.635.234.834.434.036.239.338.838.438.037.537.136.736.335.935.535.134.734.336.439.639.238.738.337.937.437.036.636.235.835.435.034.636.639.939.539.138.638.237.837.436.936.536.135.735.334.936.840.339.839.439.038.538.137.737.336.836.436.035.635.237.040.640.239.739.338.938.438.037.637.236.736.335.935.537.241.040.540.139.639.238.838.337.937.537.136.636.235.837.441.340.940.440.039.539.138.738.237.837.437.036.636.137.641.741.240.840.339.939.439.038.538.137.37.336.936.520
续表A平测区混凝土强度换算值fs.（MPa）均回平均碳化深度值dm（mm）弹值0.00.51.01.5 2.02.5 3.03.54.04.55.05.5 >6R..37.842.041.641.140.640.239.739.338.938.438.037.637.236.838.042.441.941.441.040.540.139.639.238.838.337.937.537.138.242.742.341.841.340.940.440.039.539.138.638.237.837.438.443.142.642.141.741.240.740.339.839.439.038.538.137.738.643.443.042.542.041.541.140.640.239.739.338.938.438.038.843.843.342.842.441.941.441.040.540.139.639.238.738.339.044.243.743.242.742.241.841.340.840.439.939.539.138.639.244.544.043.543.042.642.141.641.240.740.339.839.438.939.444.944.443.943.442.942.442.041.541.040.640.139.739.239.645.244.744.243.743.342.842.341.841.440.940.540.039.639.845.645.144.644.143.643.142.642.241.741.240.840.339.940.046.045.544.944.444.043.543.042.542.041.641.140.640.2 40.246.345.845.344.844.343.843.342.842.441.941.441.040.540.446.746.245.745.2 44.644.243.743.242.742.241.841.340.840.647.146.546.045.545.044.544.043.543.042.642.141.641.240.847.446.946.445.945.444.844.343.943.442.942.441.941.541.047.847.346.746.2 45.745.244.744.2 43.743.242.742.341.841.248.247.647.146.646.145.545.044.544.043.643.142.642.141.448.548.047.546.946.445.945.444.944.443.943.442.942.421
续表A平测区混凝土强度换算值fea（MPa）均回平均碳化深度值dm（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5≥6Rm41.648.948.447.847.346.846.245.745.244.744.243.743.242.841.849.348.748.247.647.146.646.145.645.144.644.143.643.142.049.649.148.548.047.546.946.445.945.444.944.443.943.442.250.049.548.948.447.847.346.846.345.745.244.744.243.742.449.849.348.748.247.747.146.646.145.645.144.644.142.649.749.148.648.047.547.046.445.945.444.944.442.850.049.548.948.447.847.346.846.345.745.244.743.049.849.348.748.247.747.146.646.145.645.143.249.649.148.548.047.546.946.445.945.443.450.049.448.948.447.847.346.846.245.743.649.849.348.748.247.647.146.646.143.849.649.148.548.047.446.946.444.050.049.448.948.347.847.346.744.249.849.248.748.147.647.144.449.649.048.547.947.444.649.949.448.848.347.744.849.749.248.648.145.049.549.048.445.249.949.348.822
续表A平测区混凝土强度换算值fu（MPa）均回平均碳化深度值d.（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5>6Ral45.449.749.145.650.049.445.849.8注：1本表系按兰州新区泵送普通混凝土测强曲线制定；2表中未注明的测区混凝土强度换算值为小于16.0MPa或大于50MPa。23
附录B 泵送高强混凝土测区强度换算表表B泵送高强混凝土测区强度换算平测区混凝土强度换算值f（MPa）均回平均碳化深度值d.（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5R..32.550.032.750.350.132.950.550.450.250.033.150.850.650.450.350.150.033.351.050.950.750.550.450.250.033.551.351.150.950.850.650.550.350.150.033.751.551.451.251.050.950.750.550.450.250.133.951.851.651.451.351.151.050.850.650.550.350.150.034.152.051.951.751.551.451.251.050.950.750.550.50.250.134.352.352.151.951.851.651.451.351.150.950.850.650450.334.552.552.452.252.051.951.751.551.451.251.050.950.750.534.752.852.652.452.352.151.951.851.651.451.351.150.950.834.953.052.952.752.552.352.252.051.851.751.551.351.035.153.353.152.952.852.652.452.352.151.951.851.651.335.353.553.463.263.052.8526252.51.524
续表B平测区混凝土强度换算值f（MPa）均回平均碳化深度值d（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5≥>6Re58.380.880.580.280.079.779.579.279.078.778.578.278.077.758.581.080.780.580.280.079.779.479.278.978.778.478.277.958.781.281.080.780.480.279.979.779.479.278.978.678.478.158.981.481.280.980.780.480.179.979.679.479.178.978.678.459.181.781.481.280.980.680.480.179.979.679.379.178.878.659.381.981.681.481.180.980.680.380.179.879.679.379.078.858.781.281.080.780.480.279.979.779.479.278.978.678.478.158.981.481.280.980.780.480.179.979.679.479.178.978.678.459.181.781.481.280.980.680.480.179.979.679.379.178.878.659.381.981.681.481.180.980.680.380.179.879.679.379.078.859.582.181.981.681.381.180.880.680.380.079.879.579.379.059.782.482.181.881.681.381.080.880.580.380.079.779.579.259.982.682.382.181.881.581.381.080.780.580.280.079.779.460.182.882.582.382.081.781.581.281.080.780.480.279.979.760.383.082.882.582.282.081.781.481.280.980.780.480.179.960.583.383.082.782.582.281.981.781.481.180.980.680.480.160.783.583.282.982.782.482.181.981.681.481.180.880.680.360.983.783.483.282.982.682.482.81.881.681.8180.880.561.183.983.7X3.483.82.82.682.382.181.881.581.381.080.831
续表B平测区混凝土强度换算值f（MPa）均回平均碳化深度值d（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5≥6Rm61.384.283.983.683.483.182.882.582.382.081.881.581.281.061.584.484.183.883.683.383.082.882.582.282.081.781.481.261.784.684.384.183.883.583.383.082.782.582.281.981.781.461.984.884.684.384.083.783.583.282.982.782.482.181.981.662.184.884.584.284.083.783.483.282.982.682.482.181.862.385.084.784.584.283.983.783.483.182.882.682.382.062.585.084.784.484.183.983.683.383.182.882.582.362.784.984.684.484.183.883.683.383.082.782.562.984.984.684.384.083.883.583.283.082.763.184.884.584.384.083.783.483.282.963.385.084.884.584.283.983.783.483.163.585.084.784.484.283.983.683.363.784.984.684.484.183.883.663.984.984.684.384.083.864.184.88484.384.064.385.084.784.584.264.585.084.784.464.784.984.664.984.8注：1本表系按兰州新区泵送高强混凝土测强曲线制定；2表中未注明的测区混凝土强度换算值为小于50.0MPa或大于85.0MPa32
附录C水平方向测试泵送混凝土底面测区强度换算表表C泵送高强混凝土测区强度换算平测区混凝土强度换算值f.（MPa）均回平均碳化深度值d.（mm）弹值0.00.51.52.02.53.03.54.05.05.5R.22.516.022.716.216.022.916.416.216.023.116.716.416.216.023.316.916.716.416.216.023.517.216.916.716.416.223.717.417.216.916.716.416.223.917.717.417.216.916.716.416.224.117.917.717.417.216.916.616.416.224.318.21717.717.417.116.916.616.416.124.518.418.217.917.617.417.116.916.616.416.124.718.718.418.217.917.617.417.116.916.616.416.124.919.018.718.418.117.917.617.317.116.816.616.316.125.119.218.918.718.418.117.817.617.317.116.816.616.325.319.519.218.918.618.418.117.87.617.317.016.816.533
续表C平测区混凝土强度换算值f（MPa）均回平均碳化深度值d（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5≥>6R.33.331.130.630.229.729.328.928.428.027.627.226.826.426.033.531.430.930.530.029.629.228.728.327.927.526.726.333.731.731.330.830.329.929.529.028.628.227.827.326.926.533.932.031.631.130.630.229.729.328.928.528.027.627.226.834.132.431.931.431.030.530.029.629.228.728.327.927.527.134.332.732.231.731.330.830.329.929.529.028.628.22727.434.533.032.532.031.631.130.730.229.829.328.928.528.027.634.733.332.832.431.931.431.030.530.029.629.228.728.327.934.933.733.232.732.231.731.330.830.329.929.529.028.628.235.134.033.533.032.532.031.631..130.630.229.728.928.435.334.333.833.332.832.331.931.430.930.530.029.629.228.735.534.734.133.633.132.732.231.731.230.830.329.429.035.735.034.534.033.533.032.532.031.53130.630.229.729.335.935.334.834.333.833.332.832.331.831..430.93030.029.636. 135.735.134.634.133.633.132.632.131.731.230.30.329.836.336.035.534.934.433.933.432.932.432.0.030.630.136.536.335.835.334.834.233.733.232.732.331.83130.930.436.736.736.135.33.533.132.632.30.736.937.036.535.935.33.933.432.932.43131.(36
续表C平测区混凝土强度换算值fs（MPa）均回平均碳化深度值d（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5≥>6R.37.137.436.836.335.735.234.734.233.733.232.732.231.731.337.337.737.136.636.135.535.034.534.033.533.032.332.031.537.538.037.536.936.435.835.334.834.333.833.332.832.331.837.738.437.837.336.736.235.635.134.634.133.633.32.632.137.938.738.237.637.036.536.035.434.934.433.933.432.932.438.139.138.537.937.436.836.335.835.234.734.233..232.738.339.438.938.337.737.236.636.135.535.034.534.033.533.038.539.839.238.638.137.536.936.435.935.334.834.333.833.338.740.139.539.038.437.837.336.736.235.635.134.634.133.638.940.539.939.338.738.237.637.036.536.035.434.934.433.939.140.840.239.739.138.537.937.436.836.335.735.234.734.239.341.240.640.039.438.838.337.737.136.636.035.535.034.539.541.640.940.339.739.238.638.037.536.936.435.835.334.839.741.941.340.740.139.538.938.337.837.236.35.635.139.942.341.741.040.439.839.338.738.137.537.035.935.440.142.642.041.440.840.239.639.038.437.937.336.235.740.343.042.441.741.140.539.939.338.838.237.636.536.040.543.442.742.141.540.940.339.739.138.537.937.436.836.340.743.743.42.41.841240.039.438.838.337.737.136.637
续表C平测区混凝土强度换算值fs（MPa）均回平均碳化深度值d（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5≥6R.40.944.143.442.842.241.640.940.339.739.238.638.037.536.941.144.543.843.242.541.941.340.740.139.538.938.337.837.241.344.844.243.542.942.241.641.040.439.839.238.638.137.541.545.244.543.943.242.642.041.340.740.139.539.038.437.841.745.644.944.243.642.942.341.741.140.539.939.338.738.141.945.945.344.643.943.342.742.041.440.840.239.639.038.442.146.345.645.044.343.643.042.441.741.140.539.939.338.842.346.746.045.344.744.043.442.742.141.540.940.339.739.142.547.146.445.745.044.443.743.142.441.841.240.640.039.442.747.446.746.145.444.744. 143.442.842.141.540.940.339.742.947.847.146.445.745.144.443.843.142.541.841.240.640.043.148.247.546.846.145.444.844.143.442.842.241.640.940.343.348.647.947.246.545.845.144.443.843.142.541.941.340.743.549.048.247.546.846.145.544.844.143.542.842.241.641.043.749.448.647.947.246.545.845.144.543.843.242.541.941.343.949.749.048.347.646.946.245.544.844.243.542.942.241.644.149.448.747.947.246.545.945.244.543.943.242.641.944.349.849.048.347.646.946.245.544.944.243.542.942.344.549.448.748.047.346.645.945.244.543.943.242.638
续表C平测区混凝土强度换算值fa（MPa）均回平均碳化深度值dm（mm）弹值0.00.51.01.52.02.53.03.54.04.55.05.5≥6R.44.749.849.148.347.646.946.245.544.944.243.642.944.949.448.748.047.346.645.945.244.643.943.245.149.849.148.347.646.946.245.644.944.243.645.349.448.748.047.346.645.945.244.643.945.549.849.148.447.646.946.245.644.944.245.749.448.748.047.346.645.945.244.645.949.849.148.447.646.946.345.644.946.150.249.448.748.047.346.645.945.246.350.649.849.148.447.646.946.245.646.550.950.249.448.748.047.346.645.946.749.849.148.347.646.946.246.949.448.748.047.346.647.149.849.148.347.646.947.349.448.748.047.347.549.849.048.347.647.749.448.747.947.949.749.048.348.149.348.648.349.749.039
续表C平测区混凝土强度换算值f（MPa）均回平均碳化深度值dm（mm）弹值0.00.51.02.02.53.03.54.04.55.05.5≥6R..48.550.049.348.749.748.950.0注：1本表系按兰州新区泵送普通混凝土测试面为浇筑面底面测强曲线制定；2本表系检测角度为0°，非水平方向检测应先按附录E进行角度修正，再按根据修正后的数值查询本表；3表中未注明的测区混凝土强度换算值为小于16MPa或大于50.0MPa。40
附录D泵送混凝土早龄期(3d～13d)
表D泵送混凝土早龄期（3d~13d)测区强度换算
注：1本表系按兰州新区早龄期泵送普通混凝土测强曲线制定：
2表中未注明的测区混凝土强度换算值为小于10.1MPa 或大于39.2MPa
2表中未列入的相应于Rm的修正值R，可用内插法求 得,精确至0.1。
附录F回弹法检测泵送混凝土抗压强度原始记录表F（检测单位名称)回弹法检测泵送混凝土抗压强度原始记录委托单位：工程名称：构件名称及设计强度等级：检测环境温度/湿度：第页共页编号回弹值R碳化深度值测区强度换算值备轴线编号测区X910111213141516Rm(d, )(MPa)注12345678910测面状态：侧面、表面、底面型号：使用测区强度规程计算结mf,= J.u,=[回弹仪检测前后率定值回弹仪测试角度：水平、向上、向下编号：换算表名称：地区果(MPa)sf=前后测试：记录：计算：测试日期：年月日
附录G回弹法检测泵送混凝土抗压强度报告表G回弹法检测泵送混凝土抗压强度报告编号：第页,共页混凝土生产单位委托单位设计单位监理单位工程名称构件名称施工日期检测原因检测环境检测依据回弹仪生产厂回弹仪编号回弹仪检定证号检测日期检测结果构件混凝土抗压强度换算值（MPa）现龄期混凝备土强度推定名编号平均值标准差最小值注值(MPa)检测结论：注意事项：1.未经本中心同意，不得部分复制本报告；2.本报告只对所检测部位负责；3.若对本报告有异议，应于收到报告之日起十五日内向本中心提出，逾期不予受理。批准：审核：主检：47
1为了便于在执行本规程条文时区别对待，对要求严格程度 不同的用词说明如下： 1表示很严格，非这样做不可的用词： 正面词采用“必须”，反面词采用“严禁”。 2）表示严格，在正常情况下均应这样做的用词： 正面词采用“应”，反面词采用“不应”或“不得”。 3）表示允许稍有选择，在条件许可时首先应这样做的 用词： 正面词采用“宜”，反面词采用“不宜”。 4）表示有选择，在一定条件下可以这样做的用词： 正面词采用“可”，反面词采用“不可”。 2条文中指明应按其他有关标准执行的，写法为“应符合 ···的规定（或要求）”或“应按··.·执行”。非必须按所指定的标
···的规定（或要求）”或“应按·····执行”。非必须按所指定的标 准执行时，写法为“可参照”
兰州新区回弹法检测泵送混凝土
DB34／T 3266-2018 聚乙烯醇（PVA）纤维水泥稳定碎石基层施工技术指南 总则 55 3回弹仪· 3.1 一般规定 3.2 检定要求· 57 3.3 维护保养 57 4 检测技术 58 4.1 一般规定 : 58 4.2 回弹值测量 4.3碳化深度值测量 59 5 回弹值计算 60 6 混凝土强度推定 61
总则 55 3 回弹仪· 57 3.1 一般规定……· 3.2 检定要求·· 57 3.3 维护保养 57 检测技术 58 4.1 一般规定 : 58 4.2 回弹值测量 59 4.3 碳化深度值测量 59 回弹值计算 60 混凝土强度推定 D 61
4.1.5本条引用了《回弹法检测混凝土抗压强度技术规
4.1.6本条引用了《回弹法检测混凝土抗压强度技术规程》J
4.2.1本条引I用了《回弹法检测混凝土抗压强度技术规程》JGJ/I
GB/T 42205-2022 黑蒜质量通则4.3.1本条引用了厂《回弹法检测混凝土抗压强度技术规程》JGJ/
6.0.1本条规定了兰州新区泵送混凝土强度换算方法适用的条
6.0.6本条引用了《回弹法检测混凝土抗压强度技术夫