初步探讨了聚羧酸减水剂提高混凝土抗劈裂性能机理。
Discussed initially the mechanism of polycarboxylic water-reducer improve performance of cracking-resistance of concrete.
介绍了聚氧乙烯基烯丙酯大单体和聚羧酸减水剂的合成，并对合成的聚羧酸减水剂进行了性能考察。
Acrylate monomer with polyoxyethylene group chain and a series of polycarboxylic superplasticizer were synthesized and their water-reducing effects were investigated.
在实际应用过程，发现混凝土原材料对聚羧酸减水剂应用性能的影响非常大，但有关这方面研究的文章很少。
In practical applications, it is discovered that concrete raw materials have a significant effect on the application performance of PCE, however, there are few articles about the subject.
为了更好的推广聚羧酸减水剂的应用，本文着重研究了各种原材料对聚羧酸减水剂应用性能的影响，包括水泥、矿物掺合料和砂石原材料。
In order to better promote the application of PCE, this paper mainly studies the effect of raw materials, including cement, mineral addition and aggregate, on application performance of PCE.
聚羧酸系高性能减水剂是减水剂的新品种，具有很多良好的使用性能。
Polycarboxylic acid is a new kind of high performance water-reducing agents which have many useful properties.
本文介绍JM PC A (I)聚羧酸系高效减水剂的化学结构、作用机理、性能特点及其高性能混凝土的应用。
Chemical structure, mechanism, performance characteristics of JM-PCA (I) carboxylic high range water reducing agent and its application in high performance concrete are presented.
聚羧酸系减水剂具有高减水率和抑制混凝土坍落度经时损失的优点，研究开发新型的聚羧酸系减水剂受到国内外广泛关注。
With the merits of higher fluidity effect and preventing concrete mix from slump-loss with time duration, poly-carboxylic acid series water-reducer agent (WRA) has been widely studying.
通过大分子反应，合成了一类主链带羧基、磺酸基，支链带聚氧乙烯基醚的聚羧酸系高效减水剂。
Polycarboxylate superplasticizer with carboxylic, sulfonation groups in its main chain and polyoxyethylene ether as side chains was prepared by the macromolecular reaction.
采用了工业化的不饱和聚醚多元醇为反应单体，合成了一种高减水率，长缓凝时间的新型聚羧酸系高效减水剂。
A kind of unsaturated polyether was adopted as the reactive monomer, synthesis a new type of polycarboxylate superplasticizer with high dispersibility and long retention characters.
应用高分子设计原理，合成了一种低坍损聚羧酸系高效减水剂。
Based on molecular design theory of polymer, a kind of low slump loss polycarboxylate type superplasticizer was synthesized.
应用高分子设计原理，合成了一种低坍损梳形聚羧酸系高效减水剂。
Based on molecular design theory of polymer, a kind of low slump loss comb-like polycarboxylate type superplasticizer was synthesized.
聚羧酸类减水剂是高效减水剂的新品种，具有很多良好的使用性能。
Polycarboxylic acid is a new kind of high performance water-reducing agents. It has many useful properties.
将柠檬酸作为侧基引入到聚羧酸大分子链中，合成了一种新型聚羧酸系高效减水剂。
A new polycarboxylic acid type superplasticizer was synthesized by introducing citric acid to polycarboxylic acid molecule as branch in order to solve concretes slump-loss, bleeding and segregation.
除水泥外，混凝土原材料粉煤灰、矿粉、石粉和粘土对聚羧酸系减水剂的应用性能也有明显影响。
In addition to cement, the concrete raw materials, including fly ash, mineral powder, silver stone and clay, remarkably affect the application performance of PCE.
本发明涉及一种聚羧酸复合减水剂及其制备方法，适用于低胶凝材料混凝土。
The invention relates to a polycarboxylate composite water reducing agent suitable for low-cementitious material concrete and a preparation method thereof.
结果表明，该聚羧酸系高效减水剂对不同水泥具有良好分散性和适应性。
It indicated that such water-reducing agent has high dispersing ability and good compatibility with various cements.
最后对全文进行总结，并提出今后研究(本文此处略…)的方向及对二步法合成聚羧酸盐高效减水剂一些瞻望。
Finally, the paper was summarized, and some prospects of future research directions to two-step synthesis of polycarboxylic superplasticizer was proposed.
最后对全文进行总结，并提出今后研究(本文此处略…)的方向及对二步法合成聚羧酸盐高效减水剂一些瞻望。
Finally, the paper was summarized, and some prospects of future research directions to two-step synthesis of polycarboxylic superplasticizer was proposed.
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