Due to poxy matrix bibulous properties, CFRP bars 'bibulous rate is to achieve maximum in the 68 days or so, in acid and alkali solution. After 68 days, bibulous rate began to decline, and be more stable. 研究结果表明:1.由于环氧树脂基体吸水的特性,CFRP筋试件在碱溶液腐蚀下,吸水率在第68天左右达到最大,68天以后,吸水率开始下降,并趋于稳定。