Mortars of alkali-activated blast furnace slag with high aggregate.: binder ratios

被引：16

作者：

Burciaga-Diaz, O. ^{[1
]}

Diaz-Guillen, M. R. ^{[1
]}

Fuentes, A. F. ^{[1
]}

Escalante-Garcia, J. I. ^{[1
]}

机构：

[1] Cinvestav Saltillo, Ingn Ceram, Saltillo 25000, Coahuila, Mexico

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 44卷

关键词：

Alkali activated slag; Mortars; Masonry bricks; Construction; Compressive strength; FLY-ASH; MECHANICAL-PROPERTIES; CONCRETE; STRENGTH; CEMENTS;

D O I：

10.1016/j.conbuildmat.2013.03.057

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Mortars with high aggregate:binder ratios of 10:1 and 8:1 were investigated with binders of blast furnace slag activated with 2.5%, 3.4%, 4.5%, and 6.5% Na2O relative to the mass of slag and using sodium silicate solutions with moduli SiO2/Na2O of 1.3, 1.5, 1.7, 2.0 and 2.2. The mortars were formulated at low water/binder ratio in semi-dry mixes to produce bricks. The modulus of 1.7 was chosen as most adequate and the effects of the % Na2O and temperature, on strength development, were then investigated. Various formulations showed compressive strength useful for construction, where mortars with aggregate:binder of 8:1, activated with 3.5% Na2O and cured at 60 degrees C registered 20 MPa at 28 days, while mortars with 8:1 and 10:1 with 6% Na2O cured at 20 degrees C reached 20 and 13.3 MPa, respectively. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：607 / 614

页数：8

共 45 条

[21] ALKALI ACTIVATED GROUND GRANULATED BLAST-FURNACE SLAG CONCRETE - PRELIMINARY INVESTIGATION [J].

DOUGLAS, E ;

BILODEAU, A ;

BRANDSTETR, J ;

MALHOTRA, VM .

CEMENT AND CONCRETE RESEARCH, 1991, 21 (01) :101-108

[22] Cementitious composites of pulverised fuel ash and blast furnace slag activated by sodium silicate:: effect of Na2O concentration and modulus [J].

Escalante Garcia, J. I. ;

Campos-Venegas, K. ;

Gorokhovsky, A. ;

Fernandez, A. .

ADVANCES IN APPLIED CERAMICS, 2006, 105 (04) :201-208

[23] Coarse blast furnace slag as a cementitious material, comparative study as a partial replacement of Portland cement and as an alkali activated cement [J].

Escalante-Garcia, J. I. ;

Espinoza-Perez, L. J. ;

Gorokhovsky, A. ;

Gomez-Zamorano, L. Y. .

CONSTRUCTION AND BUILDING MATERIALS, 2009, 23 (07) :2511-2517

[24] Reactivity and mechanical properties of alkali activated blast furnace slag [J].

Escalante-Garcia, JI ;

Méndez-Nonell, J ;

Gorokhovsky, A ;

Fraire-Luna, PE ;

Mancha-Molinar, H ;

Mendoza-Suarez, G .

BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO, 2002, 41 (05) :451-458

[25]

Fernandez-Jimeenez A., 1999, CEMENT CONCRETE RES, V29, P1313, DOI DOI 10.1016/S0008-8846(99)00154-4

[26] Alkali-activated slag cements: Kinetic studies [J].

FernandezJimenez, A ;

Puertas, F .

CEMENT AND CONCRETE RESEARCH, 1997, 27 (03) :359-368

[27]

Hans Joachim F, 2005, WORKSH ENV HLTH ASP, P5

[28] From electrons to infrastructure: Engineering concrete from the bottom up [J].

Jennings, Hamlin M. ;

Bullard, Jeffrey W. .

CEMENT AND CONCRETE RESEARCH, 2011, 41 (07) :727-735

[29] Advances in alternative cementitious binders [J].

Juenger, M. C. G. ;

Winnefeld, F. ;

Provis, J. L. ;

Ideker, J. H. .

CEMENT AND CONCRETE RESEARCH, 2011, 41 (12) :1232-1243

[30]

Malhotra VM, 2006, ACI CONC INT, V28, P42

← 1 2 3 4 5 →