Pore structure of cement mortar hydrated at different temperature and CO2 conditions

Title: Pore structure of cement mortar hydrated at different temperature and CO2 conditions
Author(s): Y. Kitsutaka, S. Watanabe
Paper category : conference
Book title: International Conference on Microstructure Related Durability of Cementitious Composites
Editor(s): W. Sun, K. van Breugel, C. Miao, G. Ye and H. Chen
Print-ISBN: 978-2-35158-065-3
e-ISBN: 978-2-35158-084-4
Publisher: RILEM Publications
Publication year: 2008
Pages: 177 - 182
Total Pages: 6
Nb references: 1
Language: English

Abstract: This paper describes an investigation on the pore structure of cement mortars under the accelerated carbonation conditions of 0% and 10% CO2 and the cured temperature at 20°C and 60°C. Specimens of 0.35, 0.5 and 0.65 water/cement ratio mortars were examined.
Porosity of specimens was measured by using a mercury intrusion porosimetry. The compressive strength of the samples subjected to the accelerated carbonation for 30 days with 10% CO2 tends to be higher than those with 0% CO2, and samples accelerated at 60 °C tend to be higher than those at 20°C. Total pore volume (TPV) of samples subjected to accelerated carbonation for 30 days with 10% CO2 and cured 60°C tends to be lower than those with 0% CO2 due to the effect of the densification of microstructures by carbonation.

Online publication: 2009-06-09
Publication type : full_text
Public price (Euros): 0.00