福州大学学报（自然科学版）2017，Vol.45Issue(2)：206-211,6.DOI:10.7631/issn.1000-2243.2017.02.0206
粉煤灰和矿粉对再生混凝土徐变性能影响的研究
Study on the impact of blast furnace slag and fly ash on creep character of recycled aggregate concrete
摘要
Abstract
Two series of recycled aggregate concrete ( RAC) mixtures were prepared with fly ash and fly ash-slag ( ratio by 1 : 1) on the effect of the creep properties, and a total of 10 groups of speci-mens were produced. The results show that using the right amount of fly ash as a substitute for cement decreases the creep of RAC. In addition, fly ash exhibits the best inhibitory effect on the growth of to-tal creep and basic creep when the replacement rates are 40% and 30%. Compared with fly ash, fly ash-slag has similar law, and had better inhibitory effect on the creep of RAC. Based on the ACI209R creep prediction model, the influence of recycled coarse aggregate and the replacement rates of fly ash and fly ash-slag are considered by the prediction model of RAC.关键词
再生混凝土/粉煤灰/矿粉/徐变Key words
recycled aggregate concrete/fly ash/slag/creep分类
建筑与水利引用本文复制引用
黄海生,郑建岚..粉煤灰和矿粉对再生混凝土徐变性能影响的研究[J].福州大学学报（自然科学版）,2017,45(2):206-211,6.基金项目
国家自然科学基金面上项目(51578153,51378126),福建省发改委重点项目(TM2012-14),福建省中青年教师教育科研项目(JA14275) （51578153,51378126）
