1) multi-carboxylic acid based superplasticizer
多羧酸系高效减水剂
1.
Compatibility problem between multi-carboxylic acid based superplasticizer and cement;
多羧酸系高效减水剂与水泥的相容性
3) polycarboxylic superplasticizer
聚羧酸系高效减水剂
1.
Preparation and properties of a novel polycarboxylic superplasticizer;
新型聚羧酸系高效减水剂的合成及性能研究
2.
A polycarboxylic superplasticizer(SP) was synthesized with macromonomers of methoxy polyethylene oxide methacrylate(MPEOMA),acrylic acid(AA),α-methylacrylic acid(MAA) and sodium allylsulfonate(SAS).
以甲氧基聚氧乙烯甲基丙烯酸酯(MPEOMA)、丙烯酸(AA)、甲基丙烯酸(MAA)、烯丙基磺酸钠(SAS)为单体设计合成了一种聚羧酸系高效减水剂SP,通过傅立叶变换红外光谱表征了减水剂的分子结构。
3.
A polycarboxylic superplasticizer(PC-C) grafted with MPEG side chains was designed according to principle of molecular structure and synthesized in water as solvent.
根据分子结构设计原理,设计并以水为溶剂合成了一种以甲氧基聚乙二醇(MPEG)为接枝侧链的聚羧酸系高效减水剂(PC-C)。
4) polycarboxylic type superplasticizer
聚羧酸系高效减水剂
1.
The research and applications of polycarboxylic type superplasticizer are constantly expanding,but as a new superplasticizer,Its composition effects with other chemical admixture were known few that affects the cost and application of polycarboxylic type superplasticizer.
聚羧酸系高效减水剂在我国的研究、应用正在不断扩大,但作为一种新型高性能减水剂,它与其他外加剂的复合效应尚知之甚少,因而影响其成本及推广应用。
2.
The composition effect of polycarboxylic type superplasticizer with some retarders such as sodium hexametaphosphate,sodium tripolyphosphate,lignine sulfoacid calcium,calcium gluconate were studied on concrete lasting propert ies.
通过用聚羧酸系高效减水剂与葡萄糖酸钠、三聚磷酸钠、木钙、糖钙四种缓凝剂复合,研究其复合后对硬化混凝土耐久性能的影响,研究结果表明:与单独使用聚羧酸系相比,复合适当缓凝剂能显著降低混凝土的56 d氯离子扩散系数,其抗渗性能明显提高。
3.
The composition effect of polycarboxylic type superplasticizer with some retarders such as sodium hexametaphosphate,sodium tripolyphosphate,lignine sulfoacid calcium,calcium gluconate were studied on concrete work performance and concrete mechanic performance.
通过用聚羧酸系高效减水剂与葡萄糖酸钠、三聚磷酸钠、木钙、糖钙4种缓凝剂复合,研究其复合后对混凝土拌合物工作性和硬化混凝土力学性能的影响,研究结果表明:与单独使用聚羧酸系相比,在聚羧酸系用量相同的情况下,缓凝剂的种类及掺量对混凝土的3 d,7 d,28 d抗压强度影响也较大。
5) polycarboxylic acid type water-reducer
聚羧酸系高效减水剂
1.
Application of the polycarboxylic acid type water-reducer on subway tunnel segment
聚羧酸系高效减水剂在地铁管片中的应用
2.
However, polycarboxylic acid type water-reducer with different structures has different water-reducing performance and slump-keeping capability.
结果表明:同时具有长侧链与短侧链相间结构的聚羧酸减水剂比单一侧链长度的减水剂有更好的水泥分散性和分散保持性;利用红外光谱和核磁共振谱对特定结构的聚羧酸系高效减水剂官能团和分子结构进行了表征。
6) polycarboxylic type high performance water reducer
聚羧酸型高效减水剂
1.
Experimental study of a kind of polycarboxylic type high performance water reducer;
一种聚羧酸型高效减水剂的试验研究
补充资料：高效减水剂
分子式：
CAS号：
性质： 一般可分为萘磺酸-甲醛缩合物(简称萘系减水剂)和磺化三聚氰胺甲醛缩合物。它们分别由工业萘、三聚氰胺，经一定的酸、碱性条件下缩聚而成。其性质属表面活性剂类；具有吸附、分散湿润、润滑等作用。使用于混凝土中能大量减少混凝土拌合用水，减水率均在15％以上，故统称高效减水剂。萘系减水剂为褐色粉状固体。三聚氰胺为无色油状液体。均能很好溶于水中，使用最普遍的是萘系减水剂。
CAS号：
性质： 一般可分为萘磺酸-甲醛缩合物(简称萘系减水剂)和磺化三聚氰胺甲醛缩合物。它们分别由工业萘、三聚氰胺，经一定的酸、碱性条件下缩聚而成。其性质属表面活性剂类；具有吸附、分散湿润、润滑等作用。使用于混凝土中能大量减少混凝土拌合用水，减水率均在15％以上，故统称高效减水剂。萘系减水剂为褐色粉状固体。三聚氰胺为无色油状液体。均能很好溶于水中，使用最普遍的是萘系减水剂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条