砂浆的准绝热温升特性与抗压强度的相关性研究  

Associating semi-adiabatic temperature evolution with compressive strength of mortar

作　　者：杨锦[1] 江晨晖[2,3] 李新宇[4] 吴恺[1] 马成畅[1] 杨杨[1] 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310014 [2]浙江建设职业技术学院建筑工程系,浙江杭州311231 [3]浙江工业大学化学工程与材料学院,浙江杭州310014 [4]中国水利顾问集团华东勘测设计研究院有限公司,浙江杭州310014

出　　处：《新型建筑材料》2014年第10期25-27,共3页New Building Materials

基　　金：国家自然科学基金青年科学基金项目(51209219);浙江省高职教育研究会2013年重点研究课题(2013019)

摘　　要：考察了包含不同胶凝材料砂浆的准绝热温升特性及其抗压强度,获得了砂浆的水化温升值与其抗压强度的量化关系。结果表明:中热水泥砂浆的温升值和温升速率比低热水泥砂浆大;包含粉煤灰的砂浆与纯水泥砂浆相比,温升速率和温升值均明显减小;水胶比越高,砂浆的水化温升值和温升速率越小;砂浆的抗压强度与水化温升值呈正向线性关系,且这种关系基本不受胶凝材料体系和水胶比的影响。在一定范围内可由砂浆(水泥基材料)的水化温升特性推定其抗压强度。Semi-adiabatic temperature evolution （SATE） and compressive strength of mortars containing different binders wereexamined. Quantitative relationship between temperature rise value and compressive strength were obtained. The results show thatthe values and rates of temperature rise of moderate heat cement mortars were larger than those of low heat cement mortars：thevalues and rates of temperature rise of the mortars containing fly ash were smaller than pure cement mortars; the higher the water-binder ratio （W/B）, the smaller the values and rates of temperature rise was. Compressive strength of the mortars was directly pro-portional to their values of temperature rise,regardless of composition of cementitious system and W/B. Consequently,compressivestrength of mortar（cement-based materials） can be estimated from their SATE.

关 键 词：绝热温升特性 粉煤灰 水胶比 抗压强度 

分 类 号：TU528.01[建筑科学—建筑技术科学]