单向碳纤维布用于混凝土受弯构件的加固和修复

Strengthening and Repairing Concrete Flexure Beams by Unidirectional Carbon Fiber Sheets

初步研究了在混凝土试件受力面用环氧树脂胶粘贴单向碳纤维布（ＣＦＳ）对混凝土受弯试件的加固和修复作用．结果表明：在混凝土表面粘贴１～３层碳纤维布，可使混凝土试件的断裂荷载提高１～２．５倍；碳纤维布对有缺陷的混凝土试件有明显的修复和加固作用．

The strengthening and repairing of concrete flexure beams by externally bonded unidirectional carbon fiber sheet/epoxy composites were primarily studied. The results show that the flexural strength of concrete is improved by a factor of 1～2.5 when bonding 1～3 layers carbon fiber sheets on the surface of concrete. In addition, the carbon fiber sheets can definitely repair the concrete with visible defect.