摘要
文章研究了掺入粉煤灰、矿粉及复掺时对混凝土早龄期力学性能的影响规律。研究表明,单掺时当粉煤灰、矿粉掺量为30%,复掺时当粉煤灰掺量为20%,矿粉掺量为15%时,与其它工况相比较,混凝土早龄期强度增长显著,但与此同时弹性模量反而稍有下降。
The influence of high volume of fly ash, mineral powder and mixed with fly ash and mineral powder on the mechanical properties of concrete at early age were researched. The results show that, compared with other conditions, when the content of fly ash and mineral powder is 30% in single mixing, and when the content of fly ash and mineral powder is 20% and 15% in the compound mixing, the strength of concrete at early age increased significantly, but at the same time, the elastic modulus decreased slightly.
作者
周俊宏
王育江
吴奕环
汪洋
ZHOU Jun-hong;WANG Yu-jiang;WU Yi-huan;WANG Yang(Ningbo Rail Transit Group Co.,Ltd,Ningbo Zhejiang 315000China;State Key Laboratory of High Performance Civil Engineering Materials,Jiangsu Sobute New Materials Co.,Ltd,Nanjing Jiangsu 211103 China)
出处
《江苏建筑》
2022年第1期122-125,144,共5页
Jiangsu Construction
基金
宁波市科技项目(NO.2019C50019)。
关键词
早龄期
粉煤灰
矿粉
力学性能
early age
fly ash
mineral powder
mechanical properties
