MC-3C 型核子水分-密度仪快速测量碾压混凝土水分子密度在曼点水库中的应用

Application of Mc-3c Nuclear Water-densitometer in Rapid Measurement of RCC Water Molecular Density in Mandpoint Reservoir

核子水分-密度仪是利用同位素放射原理实时检测土工建筑材料的密度和湿度的电子仪器。碾压混凝土的压实度或干密度是碾压混凝土质量控制的重要指标之一。核子水分-密度仪快速可在施工现场快速地检测碾压混凝土表观密度,从而计算出压实度。核子水分-密度仪完成一次检测通常只需1 min或更短时间,其效率远高于钻芯取样、灌水法或灌砂法测量密度。

Nuclear moisture-densitometer is an electronic instrument to detect the density and humidity of geotechnical building materials in real time based on the principle of isotopic radiation.Compactness or dry density of RCC is one of the important indexes for quality control of RCC.The nuclear moisture-densitometer can quickly detect the apparent density of RCC in the construction site and calculate the compactness.Nuclear water-densitometer usually takes 1 min or less to complete a test,and its efficiency is much higher than that of core sampling,irrigation or sand irrigation.