FYT涂膜类防水粘结材料路用性能

Pavement performance of FYT waterproof

分析了FYT涂膜类防水粘结材料的基本性质，测定了它的具体技术指标，通过室内剪切与拉拔试验，确定了FYT的最佳用量与最佳用量范围，研究了温度、界面粗糙度和水对FYT路用性能的影响，并与其他常用防水粘结材料进行了路用性能对比分析。分析结果表明：FYT－1^＃最佳洒布量为1．4～1．5kg·m^-2，FYT-2%#的最佳洒布量为0．10～0．15kg·m^-2；FYT在25℃时的抗剪强度与抗拉强度是60℃时的7～8倍；当遇水浸泡后，FYT抗剪强度损失3．0％，拉拔强度损失7．5％；FYT与同步碎石粘结性能相差不大，而与其他防水粘结材料相比，其抗剪强度与拉拔强度均高出3～4倍。可见，FYT具有优良的路用性能。

The basic properties of FYT waterproof were analyzed. Its specific technical indices were measured. Its optimum amount and optimum dosage range were determined by shear test and pullout test in laboratory. The influences of temperature, interracial roughness and water on the pavement performance of FYT waterproof were studied systematically. Comparison test analysis for FYT waterproof and the others used in common were carried out. Analysis result shows that optimum spreading volume for FYT-1^# is 1.4-1.5 kg · m^-2 , and that for FYT-2^# is 0. 1040.15 kg · m^-2. The shear strength and tensile strength of FYT at 25 ℃ is 7-8 times of that at 60 ℃. The losses of shear strength and tensile strength of FYT are respectively 3.0% and 7.5 % after soaking in water. Comparing with other waterproofs, except for synchronous crushed stone, its shear strength and tensile strength are 3-4 times of that of the others. Obviously, FYT has good pavement performance. 2 tabs, 14 figs, 11 refs.