摘要
混凝土在火灾等其他高温条件下其内部结构要发生复杂的物理、化学变化导致其抗压强度、抗拉强度、弹性模量等力学性能发生改变。这些力学性能的改变影响了结构的安全使用。有必要采取措施来提高其高温力学性能,目前国内外常见的方法就是掺加钢纤维、聚丙烯纤维、改变胶凝材料、使用不同的骨料。研究发现采用玻璃骨料也是提高混凝土耐高温性能的一个行之有效的措施,有待于进一步研究。
The internal concrete structure will have complex physical and chemical change when fire and other high temperature conditions, and which will lead to the mechanics properties such as compressive strength, tensile strength and elastic modulus change. The change of the mechanical properties will influence the safety use of structure. It is necessary to take measures to improve its mechanical capacity in high temperature, nowadays, the common methods adopted in domestic and abroad are adding steel fiber or polypropylene fibber into the concrete to change the characteristics of gelled material, and using different aggregate. Research found that using glass aggregate is also an effective measure to improve performance of resistant high temperature for the concrete, it is worth us to make further research.
出处
《工程质量》
2012年第4期35-39,共5页
Construction Quality
关键词
性能
混凝土
钢纤维
聚丙烯纤维
胶凝材料
玻璃骨料
property
concrete
Steel fiber
Polypropylene fiber
gelled material
glass aggregate
作者简介
宋百姓，男，硕士研究生，研究方向：高性能混凝土及固体废渣利用。
