1997~2023年成都市回彈砼強(qiáng)度換算表(地標(biāo))

--1-一、成都地區(qū)大流淌性泵送砼回彈測強(qiáng)曲線：rfccu＝0.00115R2.892m對誤差σ為±9.8％，e為±12.3％。到達(dá)“規(guī)程”規(guī)定的誤差要求。r“規(guī)程”規(guī)定的“地區(qū)和專用測強(qiáng)曲線”的允許誤差為：地區(qū)測強(qiáng)曲線：平均相對誤差σ≤±14.0％re≤±17.0％r專用測強(qiáng)曲線：平均相對誤差σ≤±12.0％re≤±14.0％r1998年1月通過市級技術(shù)鑒定。5％fccu＝0.00115R2.892m×0.95。二、回彈測強(qiáng)曲線的應(yīng)用：儀器測試角度及測試構(gòu)件外表性質(zhì)〔即砼澆筑外表和澆筑底面〕，構(gòu)件砼強(qiáng)度推定值評定〔單個構(gòu)件或批量檢測，均按中華人民共和國行業(yè)標(biāo)準(zhǔn)《回彈法檢測砼抗壓強(qiáng)〔JGJ/T23－92〕辦理。只是砼強(qiáng)度換算值，使用大流淌性泵送砼回彈測強(qiáng)曲線計算。為了便利應(yīng)用，我們對大流淌性泵送砼回彈測強(qiáng)曲線進(jìn)展了制表，以便查用。三、大流淌性泵送砼回彈測強(qiáng)曲線的應(yīng)用范圍：大流淌性泵送砼回彈測強(qiáng)測區(qū)強(qiáng)度換算表，可用于符合以下條件的砼：砼拌合物坍落度≥180mm，并承受泵送工藝澆注的一般砼及高強(qiáng)砼；425＃425＃R525＃525＃R骨料最大粒徑≤4031.5用高效減水劑或高效泵送劑或緩凝減水劑配制的砼；30—90抗壓強(qiáng)度.為32—71Mpa的砼成都地區(qū)生產(chǎn)使用的大性流淌性泵送砼；四、回彈測區(qū)砼強(qiáng)度換算表：平均回彈值

測區(qū)混凝土強(qiáng)度換算值〔Mpa〕Dm(㎜)Rm00.51.01.52.02.53.035.031.930.629.428.227.126.024.935.232.431.129.828.627.526.425.335.433.031.730.429.228.026.925.835.633.532.230.929.628.427.326.235.834.132.731.430.128.927.826.636.034.633.231.930.629.328.227.036.235.133.732.331.029.828.627.436.435.734.332.931.630.329.127.936.636.334.833.432.130.829.528.436.836.935.434.032.631.330.028.837.037.435.934.433.131.730.429.237.238.136.635.133.732.331.029.837.438.737.235.634.232.831.530.237.639.237.636.134.733.231.930.637.839.938.336.735.333.832.531.238.040.538.937.335.834.333.031.638.241.139.537.936.334.933.532.138.441.740.038.436.935.433.932.638.642.440.739.137.536.034.533.138.842.941.239.537.936.434.933.539.043.641.940.238.537.035.534.139.244.342.540.839.237.636.134.639.444.943.141.439.738.136.535.139.645.643.842.040.338.737.135.639.846.344.442.640.939.337.736.240.046.945.043.241.539.838.236.640.247.645.743.842.140.438.737.240.448.446.544.642.841.039.437.840.649.047.045.143.341.639.938.340.849.747.745.843.942.140.538.841.050.448.446.444.642.741.039.441.251.149.147.145.243.341.639.941.451.949.847.845.944.042.240.541.652.550.448.446.444.542.741.041.853.351.249.147.145.243.441.642.054.151.949.847.845.944.042.342.254.852.650.548.446.544.642.842.455.653.451.249.247.145.343.442.656.354.051.949.847.745.844.042.857.154.852.650.548.446.544.643.057.955.653.351.249.147.145.243.258.656.354.051.849.747.745.843.459.557.154.852.650.548.446.543.660.257.855.453.251.049.047.043.861.058.656.253.951.749.747.644.061.859.356.954.652.450.348.344.262.760.257.755.453.251.049.044.463.561.058.556.153.851.749.644.664.361.759.256.854.552.350.244.865.262.660.057.655.353.150.945.066.063.460.858.356.053.751.545.266.964.261.659.156.754.552.245.467.765.062.459.857.455.152.945.668.665.963.260.658.255.853.645.869.466.663.961.358.956.554.246.070.367.564.762.159.657.254.946.271.368.465.763.060.558.055.7注：本表系成都地區(qū)大流淌性泵送砼回彈法測強(qiáng)測區(qū)強(qiáng)度換算表。35.0—46.2Rm小于35.0RM46.246.2