高钛重矿渣混凝土的力学性能与自生体积变形  

Mechanical properties and autogenous volume deformation of high titanium heavy slag concretes

作　　者：徐春生[1] 娄元涛 邓敏[1] 黄蓓[1] 

机构地区：[1]南京工业大学材料科学与工程学院材料化学工程国家重点实验室,江苏南京210009 [2]钢城集团凉山瑞海实业有限公司冶金渣综合利用分公司,四川西昌615000

出　　处：《混凝土》2015年第1期111-114,共4页Concrete

摘　　要：研究了干燥状态和饱水状态下高钛重矿渣对混凝土力学性能与自生体积变形的影响,并与天然砂石混凝土进行对比。结果表明:在水灰比为0.53时,干燥高钛重矿渣混凝土和饱水高钛重矿渣混凝土的强度和弹性模量相近,但高钛重矿渣混凝土与天然砂石混凝土相比具有较高的强度和弹性模量;高钛重矿渣混凝土的自生体积变形要远小于天然砂石混凝土,由饱水高钛重矿渣配制的混凝土呈微膨胀状态。The mechanical properties and autogenous volume deformations of concretes prepared with natural aggregates and dry or wa- ter - saturated high titanium heavy slags were studied. The results indicated that when the W/C is 0.53, the strength and the elastic modulus of concrete with dry high titanium heavy slags was similar to that with water - saturated slags, and was higher than that with nature aggregates.The autogenous volume deformations of concretes with high titanium heavy slags were much smaller than that with natural aggregates. A slight expansion was observed for the concrete prepared with water - saturated high titanium heavy slags.

关 键 词：高钛重矿渣 混凝土 力学性能 体积变形 

分 类 号：TU528.041[建筑科学—建筑技术科学]