回弹仪测定混凝土强度计算

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1、修改五回弹仪测定混凝土强度计算《规程JGJ/T23-2001》123修改五回弹仪测定混凝土强度计算《规程JGJ/T23-2001》根据2001年颁布的《回弹法检测混凝土抗压强度技术规程》JGJ/T23-2001（J115-2001）代替1992年颁布的《回弹法检测混凝土抗压强度技术规程》JGJ/T23-92，有如下主要修改。P119页“统一换算表”内容有部分改动（下表中的灰色部分）回弹均值测区混凝土平均抗压强度换算值f（Mpa）平均碳化深度值d平均（mm）00.51.01.52.02.53.03.54.04.55.05.5≥62010.310.1…2111.411.210.810.

2、510.02212.512.211.911.511.010.610.2…2313.713.413.012.612.111.611.210.810.510.12414.914.614.213.713.112.712.211.811.511.010.710.410.12516.215.915.414.914.313.813.312.812.512.011.711.310.92617.517.216.616.115.414.914.413.813.513.012.612.211.62718.918.518.017.416.616.115.514.814.614.013.613.112.4

3、2820.319.719.218.417.617.016.515.815.414.814.413.913.22921.821.120.519.618.718.117.516.816.415.815.414.613.93023.322.621.921.020.019.318.617.917.416.816.415.414.73124.924.223.422.421.420.719.919.218.417.917.416.415.53226.525.724.923.922.822.021.220.419.619.118.417.516.433修改五回弹仪测定混凝土强度计算《规程JGJ/

4、T23-2001》12328.227.426.525.424.323.422.621.720.920.319.418.517.43430.029.128.026.825.624.623.723.022.121.320.419.518.33531.830.829.628.026.725.824.824.023.222.321.420.419.23633.632.631.229.628.227.226.225.224.523.522.421.420.23735.534.433.031.229.828.827.726.625.924.823.422.421.33837.536.434.9

5、33.031.530.329.228.127.426.224.823.622.53939.538.236.734.733.031.830.629.628.827.426.024.823.74041.639.938.336.234.533.331.730.830.028.427.025.825.04143.742.040.238.036.034.833.232.331.529.728.427.126.24245.944.142.239.937.636.334.934.033.031.229.828.527.54348.146.244.241.839.438.036.635.634.6

6、32.731.329.828.94450．448.446.443.841.339.838.337.336.334.332.831.230.24552．750．648.545.843.241.640.139.037.935.834.332.731.64655．052．850．647.945.243.541.940.839.737.535.834.233.14757．555．252．950．047.245.243.742.641.439.137.435.634.54860．057．655．252．249．247.445.644.443.240.839.037.236.04960．057

7、．554．451．349．447.546.245.042.540.638.837.55059．956．753．451．449．548.246.944.342.340.439.1P120页9-16行“构件混凝土强度推定值f推定”修改五回弹仪测定混凝土强度计算《规程JGJ/T23-2001》123中的推定值计算方法有所改动：4．构件混凝土强度推定值f推定构件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％的强度值。（l）当测区少于10个时，以测区混凝土强度