摘要
研究矿渣掺量对于高强高性能混凝土性能的影响。水胶比为０．２８，矿渣掺量达４０％，可以配制出早期、后期强度均高于不掺矿渣、而水泥用量高达６００ｋｇ／ｍ~３的纯水泥混凝土的相应强度，这种配合比的混凝土２８天强度在８７ＭＰａ以上；并且流动性好，可以满足泵送需要；抗渗性好，属于渗透性“很低”的等级；耐久性高，使用寿命至少＞７５年；矿渣高强高性能混凝土对应的矿渣掺量可以高于４０％。早期强度对应的矿渣掺量约为１０％。
This paper studies the effect of quatity of blast furnace slag on the strength and durability of high strength concrete and high performance concrete. When the w/e is 0.28, and the quantity of blast furnace slag is 40 percent of total binder by weight, the strength of blast-furnace-slag concrete is higher than that of pure Portland cement concrete whose cement content is up to 600kg/m^3. The strength of blast-furnace-slag concrete at 28 day is higher than 87MPa; its workability is good to suit for pumping constrction; it has low permeability and its service life is up to 75 years. The optimization quantity of blast-furnace-slag is about 40 percent at long age and 10 percent at early age.
出处
《中国建材科技》
2000年第1期14-17,41,共5页
China Building Materials Science & Technology
关键词
矿渣掺量
高强混凝土
高性能混凝土
耐久性
Quantity of Blast-Furnace-Slag High-Strength ConcreteHigh-performance Concrete Diffusion Coefficientof Chloride Ions Electric Quantity Optimlzation Quantity Pumping Concrete Permeability Service Life
