Influence of quartz particle size on the chemical and mechanical properties of autoclaved aerated concrete (II) fracture toughness, strength and micropore

Norifumi Isu, Satoshi Teramura, Hideki Ishida, Takeshi Mitsuda

研究成果: Article査読

37 被引用数 (Scopus)

抄録

The development of mechanical properties of autoclaved aerated concrete (AAC) block was investigated using ground quartz of different particle sizes. The samples were prepared at 180 °C under saturated steam pressure for various times from 0.5 to 64 h. With increasing tobermorite formation, the compressive strength, Young's modulus and fracture energy increased for the samples made using the coarser quartz, and decreased for the samples made using the finer quartz. After the completion of tobermorite formation, the coarser quartz yielded the higher compressive strength, Young's modulus, fracture energy and crack growth resistance. Using the finer quartz, gyrolite was formed by the decomposition of tobermorite after 64 h autoclaving, reducing the compressive strength and Young's modulus with changes in the micropore size distribution.

本文言語English
ページ(範囲)249-254
ページ数6
ジャーナルCement and Concrete Research
25
2
DOI
出版ステータスPublished - 1995 2

ASJC Scopus subject areas

  • 建築および建設
  • 材料科学(全般)

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