Alkali-activated Portland blast-furnace slag cement: Mechanical properties and hydration

被引：141
|
作者：
Eugenia Angulo-Ramirez, Daniela [1 ]
Mejia de Gutierrez, Ruby [1 ]
Puertas, Francisca [2 ]
机构：
[1] Univ Valle, Sch Mat Engn, Composites Mat Grp CENM, Calle 13 100-00,Bldg 349,Second Floor, Cali, Colombia
[2] Eduardo Torroja Inst Construct Sci IETcc CSIC, Calle Serrano Galvache 4, Madrid 28033, Spain
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 140卷
关键词：
Granulated blast-furnace slag; Hybrid cements; Alkaline activation; Compressive strength; Microstructural characterization; MICROSTRUCTURAL DEVELOPMENT; STRENGTH BEHAVIOR; REACTION-KINETICS; SODIUM-SILICATE; MORTARS; PRODUCTS; BINDERS; REPLACEMENT; TEMPERATURE; DURABILITY;
D O I：
10.1016/j.conbuildmat.2017.02.092
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The aim of this article was to study the kinetic, the mechanical development and the microstructure of an alkali-activated blended Portland cement produced from the mixture of a granulated blast furnace slag and Portland cement in proportion 80% and 20% respectively. The hybrid cement reported compressive strength 4.5 and 10.8 times higher than the reference (100% Portland cement) when is activated with NaOH and waterglass (sodium silicate + NaOH) respectively. Similarly, the heat of hydration was reduced and the material presented a fairly dense and compact microstructure. The main products observed were gel C-5-H, C-A-S-H and hydrated gehlenite. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：119 / 128
页数：10
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