Young's modulus and poisson's ratio of hardened cement paste under different relative humidity

Naoya Horiguchi, Go Igarashi, Ippei Maruyama

研究成果: Article査読

3 被引用数 (Scopus)

抄録

easured by ultrasonic method as well as direct tensile loading test. It was experimentally confirmed that Young's modulus, Poisson's ratio, and bulk modulus of hardened cement paste decreased as decrease in equilibrium relative humidity especially inthe range above 40%RH. And in the range below 40%RH, experimental results of direct tensile loading test showed the decrease in Young's modulus and Poisson's ratio while the experimental results of ultrasonic test showed slight increase of Young's modulusand almost constant behavior of Poisson's ratio. For the decrease of Young's modulus and Poisson's ratio can be explained by thereduction of load-bearing water in the hardened cement paste due to drying, and slight increase under 40%RH by ultrasonic test can be explained by the increase of Si-O network of C-S-H due to drying, and slight increase under 40%RH by ultrasonic test can be explained by the increase of Si-O network of C-S-H due to drying.

本文言語English
ページ(範囲)231-236
ページ数6
ジャーナルJournal of Structural and Construction Engineering
76
660
DOI
出版ステータスPublished - 2011

ASJC Scopus subject areas

  • 建築
  • 建築および建設

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