本文選題：瀝青混合料　切入點(diǎn)：工作性　出處：《公路工程》2014年01期 　論文類型：期刊論文

【摘要】：在分析瀝青混合料工作性與路用性能關(guān)系的基礎(chǔ)上,通過和易性試驗(yàn)機(jī)進(jìn)行室內(nèi)試驗(yàn)分別研究和易性試驗(yàn)機(jī)、瀝青結(jié)合料、集料級配等因素對瀝青混合料工作性的影響,并對溫度、級配等進(jìn)行了單因素敏感性分析。結(jié)果表明:相同級配下,結(jié)合料粘度越大混合料的工作性越差,反之越好;對于不同級配的混合料工作性,由于粗集料含量、細(xì)集料含量、瀝青用量的不同,導(dǎo)致混合料工作性差異較大;最大公稱粒徑大越大,混合料的工作性越差;而最大公稱粒徑相同,粗集料含量相同的混合料,細(xì)型級配的混合料工作性較差;SBS改性瀝青在135~150℃溫度區(qū)間混合料的工作性最為敏感,而普通的殼牌90#基質(zhì)瀝青在120~135℃較為敏感。
[Abstract]:Based on the analysis of the relationship between the workability of asphalt mixture and the performance of road, the laboratory tests are carried out on the workability of asphalt mixture, and the influence of the factors such as the workability of asphalt mixture, asphalt binder and aggregate gradation on the workability of asphalt mixture is studied respectively by laboratory test machine, asphalt binder, aggregate gradation and so on. The results show that the greater the viscosity of the binder, the worse the workability of the mixture is, and the better the workability of the mixture with different gradation is due to the content of coarse aggregate. The greater the maximum nominal particle size, the worse the workability of the mixture; the greater the maximum nominal particle size, the worse the workability of the mixture, while the mixture with the same maximum nominal particle size and the same coarse aggregate content, The workability of fine graded mixture is worse than that of SBS modified asphalt at the temperature range of 135 ~ 150 鈩，

本文編號：1630226