Hydration and Mechanical Properties of High-Volume Fly Ash Cement under Different Curing Temperatures

被引：0
|
作者：
Choi, Young-Cheol [1 ]
机构：
[1] Gachon Univ, Dept Civil & Environm Engn, Seongnam 13120, Gyeonggi Do, South Korea
来源：
MATERIALS | 2024年 / 17卷 / 19期
基金：
新加坡国家研究基金会;
关键词：
curing temperature; high-volume fly ash; hydration; compressive strength; CALCIUM SILICATE HYDRATE; COMPRESSIVE STRENGTH; PORTLAND-CEMENT; SULFATE RESISTANCE; CONCRETE; SLAG; HEAT; KINETICS; OPC;
D O I：
10.3390/ma17194716
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This study aimed to investigate the effects of different curing temperatures on the hydration and mechanical properties of high-volume fly ash (HVFA) concrete. The key variables were curing temperature (13 degrees C, 23 degrees C, 43 degrees C) and fly ash (FA) content (0%, 35%, 55%). The hydration characteristics of HVFA cement were examined by evaluating the setting time and heat of hydration under different curing temperatures. The mechanical properties of HVFA concrete were analyzed by preparing concrete specimens at various curing temperatures and measuring the compressive strength at 7, 28, 56, and 91 days. The results indicated that concrete with high FA content was more sensitive to curing temperature compared to ordinary Portland cement.
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页数：13
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