基于萘系高效减水剂的多元复合改性研究  

Study of Multiple-Element Compounded Modification of Naphthalene Superplasticizer

作　　者：要秉文[1] 罗永会[1] 王彦平[2] 

机构地区：[1]石家庄铁道学院材料科学与工程分院,河北石家庄050043 [2]石家庄市第一建筑有限公司科研所,河北石家庄050041

出　　处：《化学建材》2006年第4期39-41,共3页Chemical Materials for Construction

摘　　要：目前使用的大量萘系高效减水剂存在着坍落度损失大、与水泥的适应性差、易泌水等缺陷,本文运用物理多元复合技术对萘系高效减水剂进行了改性。改性后的高效减水剂减水率增加,与水泥的相容性好,可有效控制坍落度损失,混凝土的泌水少、干缩小,其抗冻、抗渗等耐久性能提高。Some defects such as quick slump loss, poor compatibility with cement and easy bleeding were found in current use of a great number of naphthalene superplasticizers. Physical multiple-element compounded technology was used for modification of naphthalene superplasticizers. The modified naphthalene superplasticizer had a high water retention and good compatibility with cement and could control slump loss effectively. The concrete mixed with this modified naphthalene high range water reducing agent was of less bleeding, less dry shrinkage and its frost resistance and impermeability were improved.

关 键 词：高效减水剂 萘系 改性 多元复合 坍落度损失 

分 类 号：TU528.042[建筑科学—建筑技术科学]