초록

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Abstract ▼ AI-Helper

The effcct of specific g~avity cont~olled In the .range fiom O.4 to 0.7 by particle size and added amount of A1 powder in the presence or absence of water repellent agent on the physical properties of ALC was examined to evaluate frost resistance and durability. The compressive sttcngth and the ten...

The effcct of specific g~avity cont~olled In the .range fiom O.4 to 0.7 by particle size and added amount of A1 powder in the presence or absence of water repellent agent on the physical properties of ALC was examined to evaluate frost resistance and durability. The compressive sttcngth and the tensile strength are increased and independency with water repellent agent when the specific gravity is increased in the range from 0.4 to 0.7. According as the added amount of water repellent agent was increased. frost resistance was improved and absorption ratio was decreased. ALC produced from fine Al powder has a low volume reduction by scaling and a sound apperance after freezing/thawing test and top surface freezing test.

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