英语翻译在-40℃～10℃的温度范围内,随温度的降低,沥青混凝土及掺入聚酯纤维的沥青混凝土其破坏弯曲应变均呈降低趋势,即

英语翻译
在-40℃～10℃的温度范围内,随温度的降低,沥青混凝土及掺入聚酯纤维的沥青混凝土其破坏弯曲应变均呈降低趋势,即温度越低,沥青混凝土及聚酯纤维沥青混凝土的抗变形能力均越来越差.但同等条件下,聚酯纤维的加入,使沥青混凝土的抗变形能力显著提高.在本试验的温度范围内,加入0.2%聚酯纤维的沥青混凝土破坏弯曲应变在不同温度下可平均提高53.6%,加入0.35%聚酯纤维的沥青混凝土破坏弯曲应变在不同温度下可平均提高79.8%,加入0.5%聚酯纤维的沥青混凝土破坏弯曲应变在不同温度下可平均提高132%.这表明聚酯纤维的加入能够有效阻止沥青混凝土低温破坏时裂缝的形成和发展,当有裂缝产生时,桥架于裂缝间的纤维起到加强筋的作用,在同等应力作用下,因纤维从基体中的逐渐拔出可推迟裂缝的形成和扩展、增大试件破坏时宽度,从而使沥青混凝土试件呈现更大的变形能力和韧性.因此,纤维掺量越高,达到试件的极限强度所对应的破坏应变也越大.

At - 40 DEG to10 DEG C temperature range,the lower the temperature,asphalt concrete and the incorporation of polyester fiber asphalt concrete and its failure bending strain decreases,i.e.,the lower the temperature,asphalt concrete and the polyester fiber asphalt concrete anti deformation capacity are getting worse.But under the same conditions,polyester fiber,the asphalt concrete anti deformation ability.In the experimental temperature range,adding 0.2% polyester fiber asphalt concrete damage bending strain at different temperatures can be improved an average of 53.6%,with 0.35% of polyester fiber asphalt concrete damage bending strain at different temperatures can be improved an average of 79.8%,with 0.5% of polyester fiber asphalt concrete damage bending strain at different temperatures to an average increase of 132%.This shows that polyester fiber asphalt concrete in low temperature and can effectively prevent the damage of crack formation and development,when there are cracks,bridge in interstitial fiber as a reinforcing rib to the role,in the same under the action of stress,because the fibers from the matrix gradually pulled out can be delayed crack formation and expansion,increase specimen damage when the width,so that the asphalt concrete specimen exhibited greater deformation capacity and ductility.Therefore,the higher the content of fiber,achieve the ultimate strength of the specimen by the failure strain is greater.