High-strength KOBM steel slag binder activated by carbonation

被引：175

作者：

Ghouleh, Zaid ^{[1
]}

Guthrie, Rodrick I. L. ^{[2
]}

Shao, Yixin ^{[1
]}

机构：

[1] McGill Univ, Dept Civil Engn, Montreal, PQ H3A 2K6, Canada

[2] McGill Univ, Dept Mat & Min Engn, Montreal, PQ H3A 2B2, Canada

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 99卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

KOBM steel slag; Carbonation activation; Strength; Carbon uptake; Slag binder;

D O I：

10.1016/j.conbuildmat.2015.09.028

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The feasibility of developing a high strength KOBM (Klockner Oxygen Blown Maxhutte) steel slag binder activated by carbonation as an alternative cementing material was investigated. After two-hour carbonation reaction, steel slag compacts displayed a 2 h compressive strength of 80 MPa with a CO2 uptake of 13%. Early strength gain was attributed to the carbonation of the slag's gamma-C2S component. Subsequent hydration enhanced the ultimate strength to 109 MPa, owing to the latent hydraulic reactivity of the beta-C2S component. The carbon-activated slag presented a more sustainable alternative to Portland cement as a primary binder for building products. In addition to conserving the natural resources and recycling the wastes, a potential carbon sink for the steel industry can be realized through its use. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：175 / 183

页数：9

共 15 条

[1] A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .1. DIRECT CRACK MEASUREMENTS [J].

ANSTIS, GR ;

CHANTIKUL, P ;

LAWN, BR ;

MARSHALL, DB .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (09) :533-538

[2] Monitoring of Stainless-Steel Slag Carbonation Using X-ray Computed Microtomography [J].

Boone, Marijn A. ;

Nielsen, Peter ;

De Kock, Tim ;

Boone, Matthieu N. ;

Quaghebeur, Mieke ;

Cnudde, Veerle .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2014, 48 (01) :674-680

[3] REACTIVITY AND STRENGTH DEVELOPMENT OF CO2 ACTIVATED NON-HYDRAULIC CALCIUM SILICATES [J].

BUKOWSKI, JM ;

BERGER, RL .

CEMENT AND CONCRETE RESEARCH, 1979, 9 (01) :57-68

[4] An overview of utilization of slag and sludge from steel industries [J].

Das, B. ;

Prakash, S. ;

Reddy, P. S. R. ;

Misra, V. N. .

RESOURCES CONSERVATION AND RECYCLING, 2007, 50 (01) :40-57

[5] Mineral CO2 sequestration by steel slag carbonation [J].

Huijgen, WJJ ;

Witkamp, GJ ;

Comans, RNJ .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2005, 39 (24) :9676-9682

[6] Development of large steelmaking slag blocks using a new carbonation process [J].

Isoo, T ;

Takahashi, T ;

Okamoto, N ;

Fukuhara, M .

ADVANCES IN CEMENT RESEARCH, 2000, 12 (03) :97-101

[7] Solidification of stainless steel slag by accelerated carbonation [J].

Johnson, DC ;

MacLeod, CL ;

Carey, PJ ;

Hills, CD .

ENVIRONMENTAL TECHNOLOGY, 2003, 24 (06) :671-678

[8] Carbon dioxide activated ladle slag binder [J].

Mahoutian, Mehrdad ;

Ghouleh, Zaid ;

Shao, Yixin .

CONSTRUCTION AND BUILDING MATERIALS, 2014, 66 :214-221

[9] Assessing the carbonation behavior of cementitious materials [J].

Monkman, Sean ;

Shao, Yixin .

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2006, 18 (06) :768-776

[10] Cementitious and pozzolanic behavior of electric arc furnace steel slags [J].

Muhmood, Luckman ;

Vitta, Satish ;

Venkateswaran, D. .

CEMENT AND CONCRETE RESEARCH, 2009, 39 (02) :102-109

← 1 2 →