Transport property of hardened cement paste based on surface chemistry

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420565
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Building structures/Materials
• Research Institution: Hokkaido University
• Principal Investigator: Kurumisawa Kiyofumi 北海道大学, 工学(系)研究科(研究院), 准教授 (40374574)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 微細構造 / 界面性状 / セメント硬化体 / 空隙 / カルシウム溶脱 / 吸着性能

Outline of Final Research Achievements

In this study, the effect of microstructure on transport properties of hardened cement paste was investigated. Hardened cement paste mixed with inorganic electrolytes, blast furnace slag, and fly ash was investigated, and it was found that Calcium silicate hydrate(C-S-H) and pore solution composition had an influence on the transport properties as well as pore structure. The chloride adsorption ability of the hardened cement paste during calcium leaching decreased remarkably in comparison with before leaching, and it was clarified that the adsorption ability of C-S-H is depended on the Ca/Si ratio of C-S-H in the blended cement.

Free Research Field

コンクリート工学