摘要
可用于混凝土中的纤维具有多尺度的特点,直径小到几微米,大到零点几毫米。选用了碳纤维、微细钢纤维和普通钢纤维三种不同几何尺寸纤维,研究了集料粒径对不同几何尺寸纤维混凝土力学性能的影响。研究结果表明,集料粒径的大小对超细纤维碳纤维的增强作用没有显著地影响,而对微细钢纤维和普通钢纤维的增强作用产生一定地影响,集料粒径的大小对微细钢纤维与普通钢纤维的几何分布产生影响,从而具有不同的增强与增韧作用。
The fiber used in concrete has much dimensions, such as several microns and several milimeters.The effect of maximum aggregates size on mechnical properties of different geometry size fiber concrete was studied by choosing carbon fiber and micro-steel fiber and ordinary steel fiber.The results indicate that there are little effects of maximum aggregates size on carbon fiber concrete and definite effects of maximum aggre- gates size on micro-steel fiber and ordinary steel fiber concrete.Maximum aggregates size affects distributing of micro-steel fiber and ordinary steel fiber on concrete and there are different reinforcing strength and reinforcing toughness effect.
出处
《混凝土》
CAS
CSCD
北大核心
2009年第6期62-64,共3页
Concrete
关键词
碳纤维
微细钢纤维
普通钢纤维
不同几何尺寸
最大集料粒径
力学性能
carbon fiber
micro-steel fiber
ordinary steel fiber
different geometry size
maximum aggregates size
mechanical properties
