硅酸盐通报2011，Vol.30Issue(3)：728-731,735,5.
碱矿渣粉煤灰胶凝体系的温度激发特性研究
Sutdy on the Temperature Stimulating Characteristics of Alkali-activated Slag-fly Ash Cementitious Material System
摘要
Abstract
In order to explore the effect of alkali-activator in different temperatures on slag and fly ash active stimulation, alkali-activator was prepared with a mixture of NaOH and Na2CO3, using the temperature of alkali-activator (t) as test parameter, at the states of t=20,30,40,50,60,70,80,95 ℃.Specimens were prepared with the value of fly ash-slag ratio(FSR) 0.6, alkali content(AC) 6.0％ and the proportion of composite alkali(n) 1.3 ,binder-water ratio(BWR) 3.2, the rheological characterization and mechanical properties after 3 and 28 d standard curing of pastes were tested. The test result shows that the rheological characterization and mechanical properties of alkali-activated slag-fly ash cementitious material system are sensitive to the change of t; 40 ℃ is the extremum pixels on the properties variation with temperature, under the same conditions, the temperature being 40 ℃, pastes consistence reaches a maximum, flow ability reaches a high level, and fiexural strength reaches a minimum, but compressive strength gets to the highest; the dependence of the index of rheological characterization and mechanical properties on the temperature can be expressed in the form of cubic polynomial, and by the value of can determine the correlativity is very remarkable. So slag and fly ash active stimulation vary from temperature to temperature, which can provided theoretical basis for optimum construction technology.关键词
碱矿渣粉煤灰胶凝体系/温度激发特性/流变学性能/力学性能Key words
alkali-activated slag-fly ash cementitious material system/ temperature stimulate characteristics/rheological characterization/mechanical properties分类
建筑与水利引用本文复制引用
罗鑫,许金余,张俊,王博,陈典亮..碱矿渣粉煤灰胶凝体系的温度激发特性研究[J].硅酸盐通报,2011,30(3):728-731,735,5.基金项目
陕西省自然科学基金(SJ08E210) （SJ08E210）
