Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74645
Title: A maturity approach to estimate compressive strength development of CO2-cured concrete blocks
Authors: Xuan, D 
Zhan, B 
Poon, CS 
Keywords: CO2 capture and storage
CO2 curing
Concrete blocks
Maturity
Issue Date: 2018
Publisher: Pergamon Press
Source: Cement and concrete composites, 2018, v. 85, p. 153-160 How to cite?
Journal: Cement and concrete composites 
Abstract: An alternative CO2 curing method for precast concrete products has been proposed in order to achieve rapid strength development at early age, as well as to capture and store greenhouse gas (CO2). In this paper, an experimental study for the development of a maturity approach is presented to estimate the strength development of carbonated concrete blocks. In order to promote the use of industrial flue gas containing CO2, a flow-through CO2 curing regime at ambient pressure and temperature was employed using different atmospheric conditions, such as various CO2 concentrations, RH values and gas flow rates. The experimental results showed that the compressive strength or maturity of the carbonated concrete blocks was affected by two factors: accelerated cement hydration and carbonation extent. A high CO2 concentration, a fast gas flow rate and a moderate relative humidity were essential for enhancing the maturity and the strength development. The developed model based on the maturity approach may accurately predict the strength development of the carbonated concrete blocks.
URI: http://hdl.handle.net/10397/74645
ISSN: 0958-9465
EISSN: 1873-393X
DOI: 10.1016/j.cemconcomp.2017.10.005
Appears in Collections:Journal/Magazine Article

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

SCOPUSTM   
Citations

1
Last Week
0
Last month
Citations as of May 15, 2018

Google ScholarTM

Check

Altmetric


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