硬化混凝土中水泥用量的测定方法概述  

Determination methods of cement content in hardened concrete

作　　者：徐晓云[1] 吴双九[1] 

机构地区：[1]中冶集团建筑研究总院建筑工程检测中心,北京100088

出　　处：《混凝土》2009年第8期103-105,108,共4页Concrete

摘　　要：水泥用量是混凝土配合比的重要参数,测定混凝土中的水泥用量对耐久性判断及配合比检查具有重要意义。硬化混凝土中的水泥用量可用化学分析方法及光学显微镜法测得。化学分析法又分为水泥溶解法与可溶性SiO2和CaO分析法,光学显微镜法包括荧光显微镜和扫描电镜。重点对化学分析方法的测定原理、试验方法及结果计算做了介绍,评价了各种方法的精密度与准确性,并总结了可能对测定造成影响的因素。The cement content is one of the most important parameters in the concrete mixture proportion and the determination of unit cement content in hardened concrete is of great significance for the estimation of concrete durability and examination of mixture proportion.Chemical analysis methods including cement dissolving processes and soluble SiO2 and CaO processes, microscopy tools using fluorescence microscopy and scanning electron microscopy have been developed to determine the unit cement content in hardened concrete.The test principle, testing process and result calculating of chemical analysis methods are introduced, and the precision and veracity are evaluated by data gained from several standards.Finally, the potential factors those are likely to have influence on the determination of cement content are presented.

关 键 词：硬化混凝土 水泥用量 化学分析 

分 类 号：TU528.01[建筑科学—建筑技术科学]