Estimation of mortars compressive strength at different curing temperature by the maturity method

被引：32
|
作者：
Boubekeur, Toufik [1 ,2 ]
Ezziane, Karim [2 ]
Kadri, El-Hadj [3 ]
机构：
[1] Univ Tissemssilt, Tissemsilt, Algeria
[2] Univ Hassiba Benbouali Chlef, Lab LaG, Chlef 0200, Algeria
[3] Cergy Pontoise Univ, Lab L2MGC, F-95031 Cergy Pontoise, France
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 71卷
关键词：
Cement; Compressive strength; Later age; Maturity; Mineral addition; Mortar; Temperature; MECHANICAL-PROPERTIES; PORTLAND-CEMENT; MICROSTRUCTURE; HYDRATION; CONCRETE; PASTES; METAKAOLIN; PRODUCTS; SILICATE; TIME;
D O I：
10.1016/j.conbuildmat.2014.08.084
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Two set of mortars were made with three mineral additions to verify the relationship between compressive strength and maturity at later age. One cured in steam room at constant temperature of 20, 30, 40 and 50 c and the second cured under variable temperature history. It was found that a limited maturity index of 350 C days exists beyond which the relationship between strength and maturity is not unique. The newly proposed maturity index allows a better correlation between strength and maturity at later age and takes into consideration the deterioration of microstructure with temperature rise. Later age strength can be predicted using the relationship strength-maturity at early age with a correlation coefficient ranging from 0.89 to 0.98. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：299 / 307
页数：9
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