Preparation and tests for workability, compressive and bond strength of ultra-fine slag based geopolymer as concrete repairing agent

被引：98

作者：

Laskar, Sulaem Musaddiq ^{[1
]}

Talukdar, Sudip ^{[1
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Civil Engn, Gauhati 781039, India

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 154卷

关键词：

Ultra-fine ground granulated blast furnace slag; Flyash; Superplasticizer; Workability; Compressive strength; Bond strength; BLAST-FURNACE SLAG; FLY-ASH; METAKAOLIN GEOPOLYMER; MECHANICAL-PROPERTIES; PORTLAND-CEMENT; MORTAR; TEMPERATURE; ACTIVATION; AMBIENT;

D O I：

10.1016/j.conbuildmat.2017.07.187

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In modern era, there is a need to develop sustainable concrete repairing material. This study aimed to develop ultra-fine blast furnace slag based geopolymer as concrete repairing agent. Sodium hydroxide activated geopolymer concrete mixes with various admixtures were prepared and tested to study fresh and hardened state properties including bond strength. The 1 day strength of ultra-fine blast furnace slag based geopolymer concrete was found to be about 60% of that at 28 days. Addition of flyash up to certain quantity level contributed towards achieving satisfactory workability, compressive and bond strength of the geopolymer concrete. Similar improvement in fresh and hardened state properties was also observed due to addition of superplasticizer at low dosage level. High alkali activator concentration led to loss of workability and strength of the geopolymer concrete. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：176 / 190

页数：15

共 34 条

[11] The effect of fineness on the properties of the blended cements incorporating ground granulated blast furnace slag and ground basaltic pumice [J].

Binici, Hanifi ;

Temiz, Huseyin ;

Kose, Mehmet M. .

CONSTRUCTION AND BUILDING MATERIALS, 2007, 21 (05) :1122-1128

[12] A novel waterproof, fast setting and high early strength repair material derived from metakaolin geopolymer [J].

Duan, Ping ;

Yan, Chunjie ;

Luo, Wenjun .

CONSTRUCTION AND BUILDING MATERIALS, 2016, 124 :69-73

[13] Bonding and abrasion resistance of geopolymeric repair material made with steel slag [J].

Hu, Shuguang ;

Wang, Hongxi ;

Zhang, Gaozhan ;

Ding, Qingjun .

CEMENT & CONCRETE COMPOSITES, 2008, 30 (03) :239-244

[14]

IS, 2004, 11991959 IS

[15] Mechanical properties and setting time of ferrochrome slag based geopolymer paste and mortar [J].

Karakoc, Mehmet Burhan ;

Turkmen, Ibrahim ;

Maras, Muslum Murat ;

Kantarci, Fatih ;

Demirboga, Ramazan ;

Toprak, M. Ugur .

CONSTRUCTION AND BUILDING MATERIALS, 2014, 72 :283-292

[16] Sodium silicate-free geopolymers as coating materials: Effects of Na/Al and water/solid ratios on adhesion strength [J].

Khan, M. Irfan ;

Azizli, Khairun ;

Sufian, Suriati ;

Man, Zakaria .

CERAMICS INTERNATIONAL, 2015, 41 (02) :2794-2805

[17] Influence of granulated blast furnace slag on the reaction, structure and properties of fly ash based geopolymer [J].

Kumar, Sanjay ;

Kumar, Rakesh ;

Mehrotra, S. P. .

JOURNAL OF MATERIALS SCIENCE, 2010, 45 (03) :607-615

[18]

Laskar S. M., 2017, ASCE J MAT CIVIL ENG, V29

[19] Setting and mechanical properties of alkali-activated fly ash/slag concrete manufactured at room temperature [J].

Lee, N. K. ;

Lee, H. K. .

CONSTRUCTION AND BUILDING MATERIALS, 2013, 47 :1201-1209

[20] Strength Characteristics of Open Air Cured Geopolymer Concrete [J].

Manjunatha, G. S. ;

Radhakrishna ;

Venugopal, K. ;

Maruthi, Sasalatti Vinod .

TRANSACTIONS OF THE INDIAN CERAMIC SOCIETY, 2014, 73 (02) :149-156

← 1 2 3 4 →