• Title/Summary/Keyword: Carbonation deprh

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Physical and Mechanical Properties of Cement Mortar Brick with Loess and Fly Ash (황토와 플라이 애시를 혼입한 시멘트 모르타르 벽돌의 물리 · 역학적 특성)

  • Lim, Sung-Soo;Sung, Chan-Yong
    • Journal of The Korean Society of Agricultural Engineers
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    • v.46 no.3
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    • pp.57-63
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    • 2004
  • This study was performed to evaluate the engineering properties of cement mortar brick with loess and fly ash. The unit weight was in the range of $2,068{\sim}2,137\;kgf/m^{3}$ and $1,899{\sim}2,045\;kgf/m^{3}$ in water and dry curing, respectively It was decreased with increasing the loess content. The absorption ratio was in the range of $5.2{\sim}13.1%$ and $8.5{\sim}13.2%$ in water and dry curing, respectively. The compressive strength was decreased with increasing the loess content. The compressive strength of the 193 $kgf/m^{2}$ in water and 188 $kgf/m^{2}$ in dry curing at the curing age 28 days of the binder volume ratio 35% was exceeded in 163 $kgf/m^{2}$ of standard compressive strength about cement bricks. The carbonation depth was in the range of $0.9{\sim}1.4$ mm, $1.2{\sim}3.6$ mm, $1.4{\sim}6.7$ mm and $2.4{\sim}12.5$ mm in dry curing of curing age 14days, 28days, 90days and 360days, respectively.