矿物掺合料对高强混凝土断裂脆性的影响  

Effect of the Mineral Admixture on the Fracture Brittleness of the High strength Concrete

作　　者：袁玲[1] 陈贤树[2] 李化建[2] 

机构地区：[1]同济大学材料科学与工程学院,上海200092 [2]清华大学材料系粉体工程实验室,北京100084

出　　处：《建材技术与应用》2001年第4期3-5,共3页Research and Application of Building Materials

基　　金：20 0 0年安徽省教育委员会自然科学研究项目 (2 0 0 0j10 45 )

摘　　要：研究了几种矿物掺合料对高强混凝土断裂脆性的影响。研究表明 ,随矿物掺合料的掺加 ,混凝土的抗压强度和抗拉强度有明显的增大。矿物掺合料对混凝土脆性的影响比较复杂 ,超细矿渣粉对混凝土的脆性影响不大 ;硅灰使混凝土的脆性明显增加 ;而粉煤灰则对改善混凝土的脆性非常有利。In this article the effect is discussed that several mineral admixtures have on the fracture brittleness of the high strength concrete.This research indicates that with the addition of the mineral admixtures,the compression strength and tensile strength are noticeably increasing.This effect of mineral admixtures on concrete is brittleness is quite complex-the effect of the superfine slag powder on the concrete's brittleness is unnoticeable,volatilized silicon causes the substantial increase of concrete's brittleness and the pulverized fly ash is useful the improvement of concrete's brittleness.

关 键 词：高强混凝土 超细矿物 掺合料 脆性 

分 类 号：TU528.3[建筑科学—建筑技术科学]