A review on alkali-activated binders: Materials composition and fresh properties of concrete

被引：102

作者：

Elahi, Md Manjur A. ^{[1
]}

Hossain, Md Maruf ^{[2
]}

Karim, Md Rezaul ^{[3
]}

Zain, Muhammad Fauzi Mohd ^{[4
]}

Shearer, Christopher ^{[5
]}

机构：

[1] Intertek USA Inc, Construct Serv Dept, Houston, TX 77015 USA

[2] Univ Newcastle, Fac Engn & Built Environm, Callaghan, NSW, Australia

[3] Dhaka Univ Engn & Technol, Dept Civil Engn, Gazipur, Bangladesh

[4] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Bangi, Selangor, Malaysia

[5] South Dakota Sch Mines & Technol, Dept Civil & Environm Engn, Rapid City, SD USA

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 260卷

关键词：

Alkali-activated bindes; Precursors; Activators; Flow; Consistency; Slump; Setting time and heat of hydration; OIL FUEL ASH; RICE HUSK ASH; BLAST-FURNACE SLAG; LOW-CALCIUM FLY; EARLY STRENGTH PROPERTIES; COMPRESSIVE STRENGTH; GEOPOLYMER CONCRETE; MECHANICAL-PROPERTIES; REACTION-KINETICS; RED MUD;

D O I：

10.1016/j.conbuildmat.2020.119788

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Alkali-activated binders (AAB) have been extensively researched as a potential replacement of ordinary portland cement (OPC) concrete to minimize carbon emissions released during OPC production while reusing a significant amount of industrial waste by-products. This paper provides a comprehensive review on the materials composition and the fresh properties of AAB. The chemical, physical, and mineralogical properties of a suite of pozzolans used to make AAB are analysed including fly ash, slag, metakaolin, silica fume, rice husk ash, palm oil fuel ash, and others. Sodium and potassium based alkaline activator solutions are also highlighted. The influence of AAB properties on workability (namely consistency, flow, and slump), setting time, reaction kinetics (as measured by isothermal calorimetry), and temperature are synthesized from past literature. The findings show that fresh properties of AAB can be tailored for specific applications based on mix design and processing conditions. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：18

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