Paper Title:
Use of CO2 as an Accelerated Curing Agent for Concrete Blocks
  Abstract

In this project, a process was developed to cure concrete masonry blocks using CO2. It was found that the strength of concrete mixtures for block manufacture after CO2 curing was close to that after conventional steam curing. A dry pre-conditioning before CO2 curing was very critical to achieve high degree of CO2 curing. The specimen pre-conditioned in the moist environment hydrates more than those pre-conditioned in the dry environment during the pre-conditioning period. However, much less CaCO3 formed in the former that that in the latter after the CO2 curing. Thus, the CO2 curing is mainly contributed by the reactions between CO2 gas and cement clink minerals.

  Info
Periodical
Key Engineering Materials (Volumes 400-402)
Edited by
Jingsi Huo, Yan Xiao, Zongjin Li and Shuaib Ahmad
Pages
81-87
DOI
10.4028/www.scientific.net/KEM.400-402.81
Citation
C. J. Shi, Q. Y. Zou, "Use of CO2 as an Accelerated Curing Agent for Concrete Blocks", Key Engineering Materials, Vols. 400-402, pp. 81-87, 2009
Online since
October 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Xin Feng, Xiao Hua Sun, Xiao Yan Wang, Qing Min Wei
Abstract:Through accelerating the hydration by heighening the curing temperature, the effect of the hydration of the unreacted cement in the hardened...
350
Authors: En Li Lu, Guo Li, Ying Shu Yuan, Ou Geng, Jian Min Du
Abstract:Studies about the resistance of carbonation capability of fly-ash (FA) concrete at different initial curing regimes and exposure time through...
920
Authors: Fa Qi Yu, Na Sun, Chao Deng, Jin Zhang, Mei Shan Pei
Building Materials
Abstract:Super-absorbent polymer (SAP) was used as a self-curing admixture for cement-based materials. Two types of super-absorbent polymer and effect...
1241
Authors: Jing Song Zhu, Ya Li Sun, Yue Feng Zhu, Dan Fei Chen
Chapter 1: Traditional Building Materials
Abstract:By means of accelerated carbonation tests, the carbonation resistance of concrete in relation to the variation of water-cement ratio, fly ash...
152
Authors: Yan Zhou Peng, Wen Yang, Qiao Sheng Zhu
Chapter 14: Novel Constructional Materials and Functional Materials
Abstract:The effect of heat-curing procedure on strength of reactive powder concrete (RPC) having high volume of mineral admixtures, such as...
3989