矿物掺合料对高强混凝土断裂性能的影响  

Mineral admixtures infuening on fracture brittleness of high strength concrete

作　　者：程多松[1] 尚建丽[1] 袁玲[2] 水从群 

机构地区：[1]西安建筑科技大学材料学院,陕西西安710055 [2]安徽建筑工业学院材料科学与工程系,安徽合肥230022 [3]安徽芜湖市建设工程质量监督站,安徽芜湖241000

出　　处：《混凝土》2005年第8期67-70,共4页Concrete

摘　　要：本文研究了复掺矿物掺合料对高强混凝土断裂脆性的影响,通过试验检测试件的抗压强度、劈裂抗拉强度,最后计算出劈裂抗拉强度/抗压强度的值,即拉压比。通过试验得出复掺矿物掺合料是改善混凝土断裂脆性的有效途径之一。当硅灰和粉煤灰按1:2掺入,并且总掺量为30%时,对提高混凝土断裂脆性有明显的正效应。The influence that mineral admixtures exercising on fracture brittleness of high strength concrete is researched. Compressive strength and tensile splitting strength of concrete can result from the experiment, and tensile splitting strength is divided by compressive strength, the result of which is called the proportion of tensile splitting strength and compressive strength. The addition of mineral admixtures is one of the effective approaches, which can improve fracture brittleness of high compressive strength concrete. When silicon ash and fly ash are added into the concrete by the proportion of 1：2 and the total addition is equal to 30 percent, they can improve the fracture brittleness of concrete.

关 键 词：高强混凝土 矿物掺合料 断裂性能 

分 类 号：TU528.041[建筑科学—建筑技术科学]