引气型聚羧酸减水剂在硅粉混凝土中的应用研究  

Research on application of entraining type polycarboxylate superplasticizer in silica fume concrete

作　　者：代柱端 

机构地区：[1]福建科之杰新材料有限公司,福建厦门361101

出　　处：《砖瓦》2015年第11期26-30,共5页Brick-tile

摘　　要：对改性TPEG进行磺酸化处理后聚合合成引气型聚羧酸减水剂,研究其掺入到硅粉混凝土中的应用性能。结果表明:磺酸化处理后聚羧酸的表面张力下降,对水泥的分散性增强,应用到硅粉混凝土中与普通聚羧酸和引气剂复合使用相比,具有更好的和易性、强度和抗冻性。Entraining type polycarboxylate superplasticizer was synthesized by sulfonating modified TPEG and Po-lymerization, its application performance was discussed when mixed into silica fume concrete. The results showedthat: after sulfonated, surface tension of polycarboxylate superplasticizer decreased while cement dispersion in-creased. Compared with common polycarboxylate superplasticizer and entraining agent simultaneously used into sili-ca fume concrete, entraining type polycarboxylate superplasticizer could bring better workability and compressivestrength and frost resistance.

关 键 词：磺酸化 表面张力 硅粉混凝土 抗冻性 

分 类 号：TU58[建筑科学—建筑技术科学]