Experimental study on the engineering properties of alkali-activated GGBFS/FA concrete and constitutive models for performance prediction

被引：31
作者：
Cong, Xinyu [1 ,2 ,3 ,4 ]
Zhou, Wei [1 ,2 ,3 ]
Elchalakani, Mohamed [4 ]
机构：
[1] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China
[2] Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin 150090, Peoples R China
[3] Harbin Inst Technol, Key Lab Smart Prevent & Mitigat Civil Engn Disast, Minist Ind & Informat Technol, Harbin 150090, Peoples R China
[4] Univ Western Australia, Fac Engn & Math Sci, Dept Civil, 35 Stirling Highway, Crawley, WA 6009, Australia
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 240卷
基金：
中国国家自然科学基金;
关键词：
Alkali-activated GGBFS/FA concrete; Industrial wastes; Stress-strain model; SHPB tests; Dynamic performance; ASH-BASED GEOPOLYMER; DYNAMIC COMPRESSIVE BEHAVIOR; FLY-ASH; MECHANICAL-PROPERTIES; ENERGY-ABSORPTION; TENSILE-STRENGTH; SLAG; STEEL; DURABILITY; AGGREGATE;
D O I：
10.1016/j.conbuildmat.2019.117977
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study focuses on elucidating the engineering properties of alkali-activated GGBFS/FA concrete. In order to consume more industrial by-products, water-quenched slag (WQS) is used as an alternative to river sand in alkali-activated concrete (AAC). In particular, this study examines the responses of AACs under different loading conditions, including static compression and tension loads and dynamic impact pressures. The static compressive stress-strain relationship, modulus of elasticity, direct tensile stress-strain relationship and dynamic response under impact loads of ambient-cured AACs are studied experimentally. Moreover, constitutive models are established by fitting the test results of the AACs. Compared with the existing models recommended for OPC-based concrete, the inclusion of new material parameters in the new proposed models achieves more realistic and reliable predictions for the AACs. It is found that AACs incorporating WQS particles exhibit better deformability in elastic range and ductility in stress descending range compared to OPC concrete. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页数：22
相关论文
共 77 条
[1]   Direct tensile testing of Self-Compacting Concrete [J].
Alhussainy, Faez ;
Hasan, Hayder Alaa ;
Rogic, Sime ;
Sheikh, M. Neaz ;
Hadi, Muhammad N. S. .
CONSTRUCTION AND BUILDING MATERIALS, 2016, 112 :903-906
[2]  
[Anonymous], 2008, Building Code Requirements for Structural Concrete and Commentary
[3]  
[Anonymous], 2014, 31814 ACI
[4]  
[Anonymous], 2016, D396716 ASTM ASTM IN
[5]   Very high strength (120 MPa) class F fly ash geopolymer mortar activated at different NaOH amount, heat curing temperature and heat curing duration [J].
Atis, C. D. ;
Gorur, E. B. ;
Karahan, O. ;
Bilim, C. ;
Ilkentapar, S. ;
Luga, E. .
CONSTRUCTION AND BUILDING MATERIALS, 2015, 96 :673-678
[6]   Chloride-induced corrosion of reinforcement in low-calcium fly ash-based geopolymer concrete [J].
Babaee, M. ;
Castel, A. .
CEMENT AND CONCRETE RESEARCH, 2016, 88 :96-107
[7]   Gel nanostructure in alkali-activated binders based on slag and fly ash, and effects of accelerated carbonation [J].
Bernal, Susan A. ;
Provis, John L. ;
Walkley, Brant ;
Nicolas, Rackel San ;
Gehman, John D. ;
Brice, David G. ;
Kilcullen, Adam R. ;
Duxson, Peter ;
van Deventer, Jannie S. J. .
CEMENT AND CONCRETE RESEARCH, 2013, 53 :127-144
[8]   Engineering and durability properties of concretes based on alkali-activated granulated blast furnace slag/metakaolin blends [J].
Bernal, Susan A. ;
Mejia de Gutierrez, Ruby ;
Provis, John L. .
CONSTRUCTION AND BUILDING MATERIALS, 2012, 33 :99-108
[9]   Effect of silicate modulus and metakaolin incorporation on the carbonation of alkali silicate-activated slags [J].
Bernal, Susan A. ;
Mejla de Gutierrez, Ruby ;
Provis, John L. ;
Rose, Volker .
CEMENT AND CONCRETE RESEARCH, 2010, 40 (06) :898-907
[10]   Bond strength between blended slag and Class F fly ash geopolymer concrete with steel reinforcement [J].
Castel, Arnaud ;
Foster, Stephen J. .
CEMENT AND CONCRETE RESEARCH, 2015, 72 :48-53
12345678