不同温度下沥青混凝土弯曲性能试验研究

Experimental Study on Bending Properties of Asphalt Concrete at Different Temperatures

为了确保沥青混凝土在不同温度条件下都具有优异的抗弯拉性能,文中采用小梁弯曲试验,对沥青混凝土在不同温度下的弯曲性能进行研究。结果表明,无论油石比和矿粉浓度如何变化,温度始终是对沥青混凝土的应力变化产生影响的主要因素;且组合比不同,随着温度的升高,沥青混凝土的抗弯强度呈现出不同的变化趋势。

In order to ensure that asphalt concrete has excellent flexural and tensile properties under different temperature conditions,trabecular bending test was used to study the bending properties of asphalt concrete under different temperatures.The results show that temperature is the main factor affecting the stress of asphalt concrete no matter how the ratio of oil to stone and the concentration of mineral powder change.With the increase of temperature,the bending strength of asphalt concrete shows a different trend.