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2. 发明公开

KR1020070027777A 메타카올린을 사용한 고성능 숏크리트 조성물 失效
标题翻译：使用美沙酮的具有优异性能的胶体组合物
公开(公告)号：KR1020070027777A
公开(公告)日：2007-03-12
申请号：KR1020050079586
申请日：2005-08-29
申请人： 한국건설기술연구원
发明人： 배규진 , 장수호 , 최순욱 , 박해균 , 이명섭 , 김재권
IPC分类号： C04B14/10 , C04B14/02 , C04B28/02
摘要： A shotcrete composition with excellent mechanical properties is provided to show superior compression strength, bending strength, etc. and to inhibit falling off of the shotcrete while improving long term durability by using metakaolin in fine powder form as an admixing agent as well as alkali-free accelerating agent. The shotcrete includes, in 1m^2 of the shotcrete: 500 to 600kgf of coarse aggregate with the largest dimension of 10 to 15mm; 1,000 to 1,200kg of fine aggregate; 300 to 450kgf of cement; water with a ratio of water to cement ranging from 40 to 60wt.%; 4 to 10wt.% of liquid accelerating agent; and 3 to 10wt.% of metakaolin admixing agent. The metakaolin is contained in an amount of 4 to 8wt.%. The shotcrete further includes 4 to 10kgf of high performance water reducing agent per 1m^2 of the shotcrete.
摘要翻译：提供了具有优异的机械性能的喷浆混合物，以显示出优异的抗压强度，弯曲强度等，并且通过使用细粉末中的偏高岭土作为混合剂以及无碱，提高了喷浆混凝土的脱落同时提高长期耐久性加速剂。喷浆混凝土包括1m ^ 2的喷浆混凝土：500〜600kgf的粗骨料，最大尺寸为10〜15mm; 1,000〜1200kg细骨料; 水泥300〜450kgf; 水与水泥的比例为40至60wt。％的水; 4〜10重量％的液体促进剂; 和3〜10重量％的偏高岭土混合剂。偏高岭石的含量为4〜8重量％。喷浆混凝土还包括每1m ^ 2喷浆混凝土4至10kgf的高性能减水剂。

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