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Properties of Retard Type Stabilizing Agent for Reuse of Sludge Water of Ready Mixed Concrete
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 Title & Authors
Properties of Retard Type Stabilizing Agent for Reuse of Sludge Water of Ready Mixed Concrete
Lee Mun-Hwan; Lee Sea-Hyun; Park Young-Shin; Park Jae-Myung;
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 Abstract
Stabilizing and rousing sludge water generated from washing truck mixer and batcher plant can resolve inconsistency in quality and improve strength, therefore it is essential to review how to utilize it. This research conducted experiments and studied on solids of sludge water to find out the types of stabilizing agents available in conditions of producing ready mixed concretes in Korea. The result showed that oxy carboxylic acid retarder dedicated for stabilizing sludge water was most effective in decreasing solid. However, the setting time of cement paste was retarded due to surplus reactants, but it did not impede application of ready mixed concretes. When we left the sludge water mixed with stabilizing agent, it has been noted that initial retard effect recovered to the level using just service water in 78 days and that it is effective to use stabilized sludge water in 23 days. On the other hand, saccharic type super retarding agent was also outstanding in applicability by showing similar effect. The sludge water stabilizing agents currently marketed depend on imports, therefore it is necessary to locally manufacture usable stabilizing agents and to review its usability with multi-dimensional view.
 Keywords
ready mixed concrete;sludge water;recycling water;stabilizing agent;by-product;
 Language
Korean
 Cited by
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2.
산업부산물의 Ca 성분 용출 특성 및 액상탄산화 반응을 이용한 침강성 탄산칼슘 제조에 관한 실험적 연구,임윤희;이주열;신재란;최창식;홍범의;강호종;박병현;

한국유화학회지, 2015. vol.32. 1, pp.116-126 crossref(new window)
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