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在新拌混凝土质量检验项目中,组分分析特别是水灰比的分析,受到国内外有关科技界的广泛关注。提出的方法为数不少,大致可分为物理方法和化学方法两类。在物理方法中有水洗筛分法测水泥和砂,但由于砂中细颗粒与水泥相混,影响精度。英国的快速分析机(RAM)可谓这类方法的代表,分析水泥含量只需要5分钟,可能是目前最快的一种方法,但精
In the new concrete quality inspection project, the component analysis, especially the analysis of water-cement ratio, has received extensive attention from the scientific and technological community at home and abroad. There are a number of methods proposed, which can be roughly divided into physical methods and chemical methods. In the physical method, there is a water-washing sieving method for measuring cement and sand, but since the fine particles in the sand are mixed with the cement, accuracy is affected. The UK’s rapid analysis machine (RAM) can be said to represent this type of method. It takes only 5 minutes to analyze the cement content. It may be the fastest method at present, but