NaNO_2型防冻剂组分对新拌水泥浆体性能的影响  

Influence of NaNO_2 Deicing-agent Composition of Performance on Fresh Cement Paste

作　　者：王迎飞[1] 马保国[2] 周丽美[1] 张文芹[2] 

机构地区：[1]广州四航工程技术研究院,广东广州510230 [2]武汉理工大学材料学院,湖北武汉430070

出　　处：《水运工程》2004年第2期40-43,共4页Port & Waterway Engineering

基　　金：西部交通科技项目"水下混凝土材料及耐久性研究"项目编号:200231800045

摘　　要：采用回转粘度计(两点法)对亚钠型防冻剂中常见组分在和萘系减水剂复合下对新拌水泥浆体流变性影响的研究,同时进行1小时内水泥浆体流动度扩展值变化经时试验,借用无级非接触式电导场在线混凝土电阻率测定仪测试水泥浆体1天电阻率变化来比较各组分对水泥浆体早期强度贡献并探讨防冻作用机理。The influence on rheology performance of fresh cement paste with the combination of NaNO2deicing-agent composition and Naphthalene water-reducing admixture was studied by adopting rotated viscidity meter(two-points avenue),and expansion value change of cement paste within one hour was tested.By means of cement&concrete resistivity meter without electrode(CCR-1),resistivity of cement paste within24h was mea-sured for comparison of the contribution degree of each composition on cement paste strength at early stage and in-depth discussion of anti-freezing mechanism.

关 键 词：流变参数 防冻机理 防冻剂 

分 类 号：TU528.042[建筑科学—建筑技术科学]