Title: Research on synthesis and performance of a novel polycarboxylate grafted slump retaining agent
Abstract: The synthesis of a novel poly-carboxylic grafted slump retaining agent named as JL-PC has been introduced and the use effect of the slump retaining agent in concrete experiments has been particularly studied.The results indicate that the concrete mixed with water reducer(HS-1) and slump retaining agent(JL-PC) has a better performance of slump retention than the concrete only mixed with water reducer(HS-1).In particular,when the content of slump retaining agent is 0.09% of cement amount,the properties of concrete reach high-points:water-reducing rate is 31.9%.The slump loss is 25.9 cm,which basically keep no change within 60 min.The bleeding rate drops to 0.4%.The compressive strength and the rate of compressive strength in 3,7,28 d also have the optimum effect.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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