The effect of stone waste on the properties of cemented paste backfill using alkali-activated slag as binder

被引：48
作者：
Zhang, Shiyu [1 ]
Ren, Fengyu [1 ]
Zhao, Yingliang [1 ,2 ]
Qiu, Jingping [1 ,2 ]
Guo, Zhenbang [1 ,2 ]
机构：
[1] Northeastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Sci & Technol Innovat Ctr Smart Water & Resource, Shenyang 110819, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 283卷
基金：
美国国家科学基金会;
关键词：
Stone waste; Paste backfill; Alkali-activated slag; Microstructure; Hydration products; WATER FILM THICKNESS; COMPRESSIVE STRENGTH; MARBLE POWDER; HYDRATION; CARBONATE; CONCRETE; SUPERPLASTICIZER; CONSTRUCTION; MECHANISMS; PRODUCTS;
D O I：
10.1016/j.conbuildmat.2021.122686
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The decorative stone processing generates a large amount of stone waste, which is associated with sev-eral environmental problems. This paper investigated the potential utilization of the stone waste (mainly containing calcite and dolomite) in the alkali-activated slag based paste backfill (APB). The effects of stone waste fineness, solid mix proportion and sodium hydroxide to sodium silicate ratio (SH/SS) on the fresh and hardened APB were experimentally studied at 7- and 28-day curing time. Results showed that ultra-fine portion (<20 mu m) of 30%-40% had a more positive effect on the fluidity and mechanical strength of APB. Active calcium from the dissolution of stone waste in high concentration of alkaline solu-tion accelerated the hydration reaction. Besides, increasing of both slag and alkaline solution content enhanced the mechanical strength of APB samples. It was also found that APB with SH/SS of 1 achieved better mechanical performance. These findings will be conducive to the potential application of building stone waste and alkali-activated slag in paste backfill. (C) 2021 Elsevier Ltd. All rights reserved.
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页数：12
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共 52 条
[1]   Re-use of waste marble dust in the production of cement and concrete [J].
Aliabdo, Ali A. ;
Abd Elmoaty, Abd Elmoaty M. ;
Auda, Esraa M. .
CONSTRUCTION AND BUILDING MATERIALS, 2014, 50 :28-41
[2]   Utilization of waste marble dust as an additive in cement production [J].
Aruntas, Hueseyin Yilmaz ;
Guru, Metin ;
Dayi, Mustafa ;
Tekin, Ilker .
MATERIALS & DESIGN, 2010, 31 (08) :4039-4042
[3]   Alkali activation of Australian slag cements [J].
Bakharev, T ;
Sanjayan, JG ;
Cheng, YB .
CEMENT AND CONCRETE RESEARCH, 1999, 29 (01) :113-120
[4]   Resistance of alkali-activated slag concrete to acid attack [J].
Bakharev, T ;
Sanjayan, JG ;
Cheng, YB .
CEMENT AND CONCRETE RESEARCH, 2003, 33 (10) :1607-1611
[5]   A contribution to understanding the hardening process of cemented pastefill [J].
Benzaazoua, M ;
Fall, M ;
Belem, T .
MINERALS ENGINEERING, 2004, 17 (02) :141-152
[6]   Use of waste marble powder in brick industry [J].
Bilgin, N. ;
Yeprem, H. A. ;
Arslan, S. ;
Bilgin, A. ;
Gunay, E. ;
Marsoglu, M. .
CONSTRUCTION AND BUILDING MATERIALS, 2012, 29 :449-457
[7]   Studies on the carboaluminate formation in limestone filler-blended cements [J].
Bonavetti, VL ;
Rahhal, VF ;
Irasser, EF .
CEMENT AND CONCRETE RESEARCH, 2001, 31 (06) :853-859
[8]   Effect of sodium-silicate activated slag at different silicate modulus on the strength and microstructural properties of full and coarse sulphidic tailings paste backfill [J].
Cihangir, Ferdi ;
Ercikdi, Bayram ;
Kesimal, Ayhan ;
Ocak, Sinan ;
Akyol, Yunus .
CONSTRUCTION AND BUILDING MATERIALS, 2018, 185 :555-566
[9]   Mechanical, hydrological and microstructural assessment of the durability of cemented paste backfill containing alkali-activated slag [J].
Cihangir, Ferdi ;
Akyol, Yunus .
INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT, 2018, 32 (02) :123-143
[10]   Hydration mechanisms of ternary Portland cements containing limestone powder and fly ash [J].
De Weerdt, K. ;
Ben Haha, M. ;
Le Saout, G. ;
Kjellsen, K. O. ;
Justnes, H. ;
Lothenbach, B. .
CEMENT AND CONCRETE RESEARCH, 2011, 41 (03) :279-291
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