PORE STRUCTURE OF CEMENT MORTAR HYDRATED AT DIFFERENT TEMPERATURE AND CO2 CONDITIONS

摘要：

This paper describes an investigation on the pore structure of cement mortars under theaccelerated carbonation conditions of 0％ and 10％ CO2 and the cured tcmperature at 20℃and 60℃. 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. Thecompressive strength of the samples subjected to the accelerated carbonation for 30 days with10％ CO2 tends to be higher than those with 0％ CO2, and samples accelerated at 60℃ tendto be higher than those at 20~C. Total pore volume (TPV) of samples subjected to acceleratedcarbonation for 30 days with 10％ CO2 and cured 60℃ tends to be lower than those with 0％CO2 due to the effect of the densification of microstructurcs by carbonation.

作者: Y.Kitsutaka S.Watanabe

作者单位: Dept.of Architecture and Building Engineering,Tokyo Metropolitan University,JAPAN

会议类型: 国际会议

会议名称: 1st International Conference on Microstructure Related Durability of Cementitious Composites(首届与水泥基复合材料耐久性相关的微观结构国际会议)

会议地点: 南京

会议语种:英文

页码: 177-182

在线出版日期: 2008-10-13（万方平台首次上网日期，不代表论文的发表时间）