Relationship between compressive strength and pore structure of hardened cement pastes

T. Takahashi, M. Yamamoto, K. Ioku, S. Goto

研究成果: Article査読

40 被引用数 (Scopus)

抄録

The application of Griffith's theory to the relationship between compressive strength and porosity of hardened cement pastes are discussed. Total porosity, compressive strength and the amount of non-evaporable water were measured. The amount of non-evaporable water showed good correlation with the porosity of the hardened cement pastes, and the composition and type of cement had little affect on this relationship. It was clearly shown that the water/cement ratio significantly affected these relationships. It was shown that there were two steps in the development of strength in the function of total porosity: in the early stage of hydration, the development of strength was controlled by maximum pore size; in the later stage, it was controlled by porosity. The effects of porosity and maximum pore size on the strength can be expressed using Griffith's equation, if it can be assumed that the elastic modulus and surface energy are exponential functions of porosity.

本文言語English
ページ(範囲)25-30
ページ数6
ジャーナルAdvances in Cement Research
9
33
DOI
出版ステータスPublished - 1997 1月
外部発表はい

ASJC Scopus subject areas

  • 建築および建設
  • 材料科学(全般)

フィンガープリント

「Relationship between compressive strength and pore structure of hardened cement pastes」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル