The Effects of Sepiolite on the Properties of Portland Cement Mortar (The Effects of Sepiolite on the Properties of Portland Cement Mortar)

서지정보

· 발행기관 : 한국세라믹학회
· 수록지 정보 : 한국세라믹학회지 / 45권 / 8호 / 443 ~ 452페이지
· 저자명 : 강현주, 송명신, 김영식

초록

Shrinkage crack is a major concern for cement materials, especially for flat structures such as Korean On-Dol floor system, flooring
for garages, and wall. One of the methods to reduce the adverse effects of shrinkage cracking is to reinforce cement materials with
shot randomly distributed fibers. The efficiency of inorganic fibrous material to arresting cracks in cementitious composites was
studied. Cement materials reinforced with five different qualities of inorganic fibrous material were tested. Contents of inorganic
fibrous material were 1.0 kg, 1.5 kg, 2.0 kg, 2.5 kg, 3.0 kg by weight of cement mortar and C : S types of cement mortar were 1 :3 and
1: 4. W/C were 60% and 80%. Cement mortar of inorganic fibrous material reinforcement showed an ability to reduce the crack width
and crack length significantly as compared to unreinforced cement mortar. 40%~60% drop in shrinkage crack of 1: 4 cement mortar
with 1.5 kg over was observed.

영어초록

Shrinkage crack is a major concern for cement materials, especially for flat structures such as Korean On-Dol floor system, flooring
for garages, and wall. One of the methods to reduce the adverse effects of shrinkage cracking is to reinforce cement materials with
shot randomly distributed fibers. The efficiency of inorganic fibrous material to arresting cracks in cementitious composites was
studied. Cement materials reinforced with five different qualities of inorganic fibrous material were tested. Contents of inorganic
fibrous material were 1.0 kg, 1.5 kg, 2.0 kg, 2.5 kg, 3.0 kg by weight of cement mortar and C : S types of cement mortar were 1 :3 and
1: 4. W/C were 60% and 80%. Cement mortar of inorganic fibrous material reinforcement showed an ability to reduce the crack width
and crack length significantly as compared to unreinforced cement mortar. 40%~60% drop in shrinkage crack of 1: 4 cement mortar
with 1.5 kg over was observed.

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