目前美国正在进行一种有希望作为路面沥青代用品——路面硫磺铺料的试验。以便一旦由于沥青成本高和出现短缺时,这种硫磺铺料可作为很有价值的代用品。在美国得克萨斯州圣安东尼(San Anto-nio)市的西南研究所指导下,采用由增塑剂处理过的硫磺铺筑了一段800英尺长的试验路面。该路段选择在一条行车密度低的道路上,可以在以后的几年中,鉴定它的性能和耐久性。增塑硫磺是硫磺在高温下与至少两种碳 At present, the United States is undertaking a test promising as a pavement asphalt substitute, a pavement sulfur pavement. This sulfur deposit can serve as a valuable substitute once the asphalt costs are high and there is a shortage. Under the direction of the Southwestern Institute in San Anto-nio, Texas, an 800-foot-long test pavement is constructed of plasticized sulfur. The road section is chosen on a road with a low traffic density and its performance and durability can be identified over the next few years. Plasticized sulfur is sulfur at high temperatures with at least two carbons