掺锂渣C50高性能混凝土的力学与徐变性能  

Mechanical and Creeping Properties of C50 High Performance Concrete with Lithium Slag

作　　者：刘来宝[1] 

机构地区：[1]四川省非金属复合与功能材料重点实验室一省部共建国家重点实验室培育基地,西南科技大学,绵阳621010

出　　处：《混凝土与水泥制品》2012年第1期67-69,共3页China Concrete and Cement Products

基　　金：国家科技支撑计划资助项目(2011BAA04B04);先进建筑材料四川省重点实验室开放课题基金(09ZXXK09);四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地开放课题基金资助(10ZXFK12,10ZXFK04)

摘　　要：以12%的锂渣超量取代水泥配制C50高性能混凝土,并测试了混凝土的力学与徐变性能及其随养护龄期的变化规律。试验结果表明,锂渣的掺入,未对混凝土早期力学性能产生负面影响,而后期强度还较未掺试样有一定程度的提高;掺锂渣混凝土的徐变变形在加载的初始7d内变化较快,180d以后基本趋于稳定,各龄期皆小于未掺试样。C50 high performance concrete by replacing cement with 12% lithium slag is prepared,and the mechanical and creeping properties of concrete and the change law of the behaviors with the curing time are tested.The experimental results show that there is no negative effects on the early age mechanical behavior of the concrete by adding into lithium slag and the mechanical strength has been improved at the later age compared with the one without lithium slag.The creeping deformation of lithium slag concrete changes a lot in 7 days but mostly levels off after 180 days,and the data of creeping behaviors of all curing ages are less than that of the concrete without lithium slag.

关 键 词：锂渣 混凝土 力学性能 徐变性能 

分 类 号：TU528[建筑科学—建筑技术科学]