混凝土减水剂研究进展综述

On survey of concrete water reducing agent

在总结和论述国内外减水剂的发展历程及研究现状的基础上,对减水剂进行了分类,并对5种常见减水剂的掺量、减水率、保坍性、引气量、28 d混凝土强度值、优缺点、发展前景及改性方法等进行了分析与比较,探讨了现阶段我国减水剂研究和应用中存在的问题,并对其发展趋势进行了展望,指出加强减水剂复配与改性技术,开发性能优越、成本低、绿色化的新型减水剂是今后的研究重点。

Based on the summary of the development and research on the water reducing agent at home and abroad,classifies the water reducing agent,analyzes and compares the mixture amount,water reducing ratio,slump resistance,air entraining amount,28 d concrete intensity values,advantages and disadvantages,prospects and modification methods of five common water reducing agents,explores some problems in current study on the agent in China,indicates the prospect for the agent＇s development,and points out the formulation and modification technique of the agent has the advantages in developing its performance with low cost,so the green water reducing agent will be the research key points in the future.