对GFRP筋在混凝土包裹、碱性溶液浸泡及自然环境紫外线辐射等不同环境条件下长期力学性能的发展变化情况进行了为期一年多的跟踪实验测试,一方面研究GFRP筋在长期混凝土包裹条件下实际的性能发展规律,另一方面检验以往GFRP筋加速老化实验的可靠性.已有测试结果表明,经历一年多的混凝土包裹及室外环境曝露后,GFRP筋抗拉强度长期衰退幅度不大,而碱液长期浸泡一年后GFRP筋抗拉强度衰退约20％.
参考文献
| [1] | Renée C,Yunping Xi.The behavior of fiber reinforced polymer reinforcement in low temperature environmental climates[R].Report No CDOT-DTD-R-2003-4,University of Colorado Boulder,USA.,2003. |
| [2] | Clarke J,Sheard P.Designing Durable FRP Reinforced Concrete Structures[C].Proceedings of the First International Conference on Durability of Composites for Construction.Sherbrooke,Québec,Canada,1998.13-24.,1998. |
| [3] | Uomoto T.Durability of FRP as Reinforcement for Concrete Structures[C].Proceedings of the 3rd International Conference on Advanced Composite Materials in Bridges and Structures,ACMBS-3.Canadian Society for Civil Engineering,Montreal,Québec,Canada,2000.3-17.,2000. |
| [4] | 张云峰,张玉亮,詹界东,王树伟,卢召红.FRP筋长期耐腐性能的研究与发展[J].低温建筑技术,2010(11):28-30. |
| [5] | 汤寄予,高丹盈,赵军,付亚男.GFRP筋高温破坏特性测试方法[J].工程塑料应用,2009(03):63-66. |
| [6] | 张新越,欧进萍 .FRP筋酸碱盐介质腐蚀与冻融耐久性实验研究[J].武汉理工大学学报,2007,29(1):34-36.,2007. |
| [7] | 周长东,吕西林,金叶.火灾高温下玻璃纤维筋的力学性能研究[J].建筑科学与工程学报,2006(01):23-28. |
| [8] | Kader L,Ehab E S,Brahim B .Creep and Durability of Sand-Coated Glass FRP Bars in Concrete Elements Under Freeze/Thaw Cycling and Sustained Loads[J].Cement &Concrete Composites,2006,28(10):869-878.,2006. |
| [9] | Guide for the Design and Construction of Concrete Reinforced with FRP Bars[S].ACI 440.1R-06,2006.,2006. |
| [10] | CAN/CSA-S6-06,Canadian Highway Bridge Design Code[S]. |
| [11] | GB50608-2010,纤维增强复合材料建设工程应用技术规范[S].,2010. |
| [12] | 岳清瑞,曹劲松,杨勇新,赵颜.碳纤维布标准检测方法中试件尺寸影响的试验研究[J].工业建筑,2005(08):1-4. |
| [13] | A Mufti,M Onofrei,B Benmokrane,N Banthia,M Boulfiza,J Newhook,B Baidar,G Tadros and P Brett .Durability of GFRP Reinforced Concrete in Field Structures[J].ACI SP-230,2005,1361 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%