INFLUENCE OF CO2 CURING IN ACTIVATED FLY ASH - PORTLAND CEMENT MASONRY UNITS

被引：0
|
作者：
Valdez, P. [1 ]
Fajardo, G. [1 ]
Juarez, C. A. [1 ]
Duran-Herrera, A. [1 ]
Del Real, J. A. [1 ]
机构：
[1] Univ Autonoma Nuevo Leon, UANL, FIC, San Nicolas De Los Garza 66451, Nuevo Leon, Mexico
来源：
REVISTA ROMANA DE MATERIALE-ROMANIAN JOURNAL OF MATERIALS | 2015年 / 45卷 / 01期
关键词：
Concrete; Thermal analysis; Pozzolans; Lime; Portland cements; QUANTITATIVE-DETERMINATION;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Mixtures were designed to produce hollow masonry units (blocks) conform to Mexican specification; these blocks were subjected to a 60 degrees C temperature and 90% relative humidity steam curing in an atmosphere of 20% CO2 concentration. Thermogravimetric methods were used to evaluate the water vapor effect and carbonation in replicate pastes of the concrete blocks to determine portlandite, carbonates and CO2 concentration in the block. Results illustrate that the application of CO2 curing in activated fly ash-Portland cement masonry units can lead to 30% savings In cement consumption and to an average CO2 fixation of 7% without modification of the compressive strength.
引用
收藏
页码：14 / 20
页数：7
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