中山大学学报（自然科学版）2009，Vol.48Issue(6)：143-146,4.
贮存核废料用混杂纤维混凝土弯曲性能试验研究
Test Research of the Flexural Property of Hybrid Fiber Concrete Used for Store Nuclear Waste
摘要
Abstract
To ensure the carrying safety and long-term durability of nuclear waste, the tests of flexural properties were carried out respectively at normal temperature and after being heated to 150℃ using orthogonal mix proportion design and incorporating steel, polypropylene hybrid fiber, fly ash or steel fiber solely in the concrete. Based on gradation and variance analyses, different kinds of admixtures and their effects on toughness of concrete are quantified. Fiber type and incorporation can improve the mechanical properties of high performance concrete effectively after cracking, which is more remarkable after being heated. Steel fiber A with sheared threads has the best effect on anti-cracking and toughening at pre-and post heating. With the increase of fiber incorporations, the flexibility of hybrid steel fiber concrete increases basically. The hybrid steel fiber is better than steel fiber with single incorporation in flexural properties at normal temperature, but no difference after being heated.关键词
混杂纤维混凝土/弯曲性能/钢纤维/聚丙烯纤维/粉煤灰Key words
hybrid fiber concrete/ flexural property/ steel fiber/ polypropylene fiber/ fly ash分类
土木建筑引用本文复制引用
李艺,赵文,梁磊,宫文娟..贮存核废料用混杂纤维混凝土弯曲性能试验研究[J].中山大学学报（自然科学版）,2009,48(6):143-146,4.基金项目
国家自然科学基金资助项目(50508008) （50508008）
辽宁省博士启动基金资助项目(20041014) （20041014）
东北大学博士后科研基金资助项目(20060125) （20060125）
辽宁省自然科学基金资助项目(20082024) （20082024）
