浸渍树脂快速与自然老化试验对应关系

RELATIONSHIP BETWEEN ACCELERATED AND OUTDOOR EXPOSURE EXPERIMENT RESULTS OF SATURATING RESIN

随着FRP加固结构的广泛应用,其耐久性问题也日益突出并受到关注。浸渍树脂作为复合材料的原料之一以及FRP与结构的粘结材料,其耐久性直接影响FRP加固结构的效果。通过对两种浸渍树脂进行快速老化和自然老化试验,在试验的基础上分析并计算了二者的对应关系。结果表明,树脂在自然环境中受各种老化因素共同的作用要比单一因素作用大得多。

With the wide use of FRP strengthened structures, the problem of their durability has been highlighted and concerned. The durability of saturating resin which is one of components of fiber reinforced polymer and adhesive material of FRP and concrete, affects the property of FRP reinforced structure. The accelerated and outdoor exposure experiments of the durability of two kinds of resins were carried out, and the relationship between them was analyzed and calculated. The results showed that the influence on the durability of the resin caused by combination of each factor of outdoor exposure was more serious than that caused by single accelerated factor.