摘要
对于广泛应用高效减水剂与矿物掺合料且要求有较优施工性与耐久性的现代混凝土,由于不同流变类型混凝土胶结材浆体的流动性、黏性以及粗集料级配与用量差别很大,因而必须按不同流变类型混凝土设计配合比.提出了每种流变类型混凝土胶结材浆体量范围与拌和用水量的选取方法.富勒氏集料连续级配公式并不能适用于不同流变类型混凝土,因此建立了4个集料连续级配计算式,并通过这4个计算式计算出各种流变类型混凝土的适宜粗集料用量.
In modern concrete, high performance water reducing agent and mineral additive are widely used, and this type of concrete is required to have excellent workability and durability. To meet the demand of the different fluidity, cohesion ability of paste of cementitious materials of concrete with different rheology, and the different grade of coarse aggregate, the mix proportion of concrete must be designed ac- cording to its types of rheology. The proper amount of paste and the quantity of water can be deduced. Be- cause the Fuller formula of continuous grading aggregate calculating cannot be applied to concrete with different rheology, four formulas are proposed separately. Based on such formulas, the proper amount of coarse aggregate in each kind of concrete with different rheology can be calculated.
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2010年第6期705-710,共6页
Journal of Building Materials
关键词
现代混凝土
配合比
流变类型
胶结材浆体
连续级配
modern concrete
mix proportion
type of rheology
paste of cementitious materials
continuousgrading
作者简介
傅沛兴（1924-），男，福建南平人，原北京市建筑工程研究院教授级高级工程师．E—mail：fupx24@vip．sina．com
