硅酸盐通报2017，Vol.36Issue(10)：3422-3425,4.
再生粗骨料砂浆含量测定方法及骨料提升技术研究
Determination of Recycled Coarse Aggregate Mortar Content and Research on Aggregate Lifting Technology
摘要
Abstract
The attached mortar content of recycled coarse aggregate ( RCA) of different quality ( class I, class II and class III ) was measured by calcination ball milling method .The relationship between the content of recycled coarse aggregate mortar and water absorption was studied .The hardness loss of recycled coarse aggregate at different calcination temperatures was tested by micro vickers hardness tester.On the basis of this , a method of aggregate strengthening was put forward .The results show that the content of the attached mortar of class I , class II and class III RCA is 7.48％, 22.76％and 34.49％, respectively .There is a good linear relationship between the content of RCA mortar , water absorption and crushing index;when the calcination temperature of RCA increases from 100 ℃to 400 ℃, the loss rate of micro hardness is smaller .When the calcination temperature reaches 500 ℃, the micro hardness loss rate reaches 25.55％.关键词
再生粗骨料/煅烧-球磨法/吸水率/附着砂浆含量/品质提升Key words
recycled coarse aggregate/calcination and ball milling/water absorption rate/attached mortar content/quality improvement分类
建筑与水利引用本文复制引用
李倩倩,李秋义,岳公冰,高嵩..再生粗骨料砂浆含量测定方法及骨料提升技术研究[J].硅酸盐通报,2017,36(10):3422-3425,4.基金项目
国家自然科学基金资助项目(51578297,51378270) （51578297,51378270）
山东省博士后创新项目专项资金(201502003) （201502003）
