混凝土碱性环境下玻璃纤维增强聚合物筋力学性能研究  

STUDY ON THE MECHANICAL PROPERTIES OF GLASS FIBER REINFORCED POLYMER BARS IN THE SIMULATED BASIC ENVIRONMENT OF CONCRETE

作　　者：闫邦平 连春明 Yan Bangping Lian Chunming(China Construction Eighth Engineering Bureau Co. Ltd, Shanghai 200122, China)

机构地区：[1]中国建筑第八工程局有限公司,上海200122

出　　处：《工业建筑》2016年第12期152-156,共5页Industrial Construction

基　　金："十二五国家科技支撑计划"公共机构新建建筑绿色建设关键技术研究与示范(2013BAJ15B05)

摘　　要：通过模拟研究对碱性环境下玻璃纤维增强聚合物(GFRP)筋的力学性能试验。分析了不同温度、侵蚀条件对GFRP筋拉伸性能的影响。采用扫描电子显微镜(SEM)和X射线荧光光谱(XRF)的微观试验,分析腐蚀前后GFRP筋力学性能变化时对应的GFRP筋表面形貌、内部结构和化学组成的变化,从而揭示GFRP筋在碱性环境下的性能劣化机理。In this paper,the mechanical properties of glass fiber reinforced polymer（GFRP） bars under simulated concrete basic environment were studied. The effects of different temperature and erosion conditions on the tensile properties of GFRP steel bars were analyzed. Scanning electron microscopy（SEM） and X-ray fluorescence（XRF）microscopic tests were used to analyzed the changes in surface morphology,composition and internal structure of GFRP bars corresponding to changes in mechanical performance of GFRP bars before and after corrosion,so as to reveal the performance degradation mechanism of GFRP bars in alkaline environment.

关 键 词：玻璃纤维增强聚合物筋(GFRP筋) 碱性环境 拉伸性能 劣化机理 

分 类 号：TU528[建筑科学—建筑技术科学]