Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/66478
Title: Mechanical properties of alkali-activated concrete : a state-of-the-art review
Authors: Ding, Y
Dai, JG 
Shi, CJ
Keywords: Alkali-activated concrete
Slag
Fly ash
Static mechanical properties
Dynamic mechanical properties
High-temperature performance
Issue Date: 2016
Publisher: Elsevier
Source: Construction and building materials, 30 Nov. 2016, v. 127, p. 68-79 How to cite?
Journal: Construction and building materials 
Abstract: Alkali-activated concretes (AACs) are attracting increasing attention dud to their potential as alternatives to ordinary Portland cement concrete (OPCC). This paper is a holistic review of current research on the mechanical properties of AAC including research on its compressive strength, tensile strength, elastic modulus, Poisson's ratio, stress-strain relationship under uniaxial compression, fracture properties, bond mechanism with steel reinforcement, dynamic mechanical properties, and high-temperature performance. Three types of MC are reviewed: alkali-activated slag, alkali-activated fly ash, and alkali activated slag-fly ash concretes. The applicability to AAC of design formulas found in codes of practice that were developed to estimate the basic mechanical performances of OPCC is also discussed. It is shown that, in general, MC exhibits better bond performance with steel reinforcement and better strength performance after exposure to elevated temperatures than OPCC. For the other reviewed mechanical properties, the differences between MC and OPCC largely depend on the proportions of raw materials in the concrete; specifically, the slag to fly ash ratio may be a very influential factor. As there is a trend to combine slag and fly ash in the production of MC to achieve normal temperature curing and environmental friendliness, further research is deemed necessary to determine how the slag to fly ash ratio influences the fundamental mechanical properties of MC and how this affects practical designs.
URI: http://hdl.handle.net/10397/66478
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2016.09.121
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

4
Citations as of Dec 4, 2017

WEB OF SCIENCETM
Citations

3
Last Week
0
Last month
Citations as of Dec 9, 2017

Page view(s)

40
Last Week
1
Last month
Checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.