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本文着重介绍了城乡建设部(原城建总局)、交通部、石油部于1979年下达上海市修筑试验路的几种国产沥青的组分及温度敏感性、热老化、收缩性等物理性能,并与国外路用沥青的性能作了比较分析。对路面的平整度、粗糙度、抗裂性等路用品质也作了介绍。通过室内、外试验研究的资料整理分析,阐明了用于道路的热拌沥青混合料的国产沥青技术指标、级配和采取必要的路面施工工艺。
This article highlights the physical and chemical properties of several domestic bitumen, such as temperature-sensitivity, thermal aging and shrinkage, of the domestic bitumen that was built in Shanghai in 1979 by the Ministry of Urban and Rural Construction (formerly the Urban Construction Bureau), the Ministry of Communications and the Ministry of Petroleum With the foreign road asphalt performance made a comparative analysis. Pavement roughness, roughness, crack resistance and other road quality are also introduced. Through the data analysis of indoor and outdoor experimental research, the domestic asphalt technical indexes, gradation and the necessary pavement construction technology of the hot mix asphalt used in the road are clarified.