高温性能是浇注式沥青混凝土的薄弱环节． 采用南非 MLS66 型加速加载设备，对港珠澳大桥拟采用的两种英国体系浇注式沥青(MA)钢桥面铺装结构进行大型直道高温性能加速加载试验． 结果表明，用德国 GA 工艺生产的 MA(即 GMA)铺装结构高温性能可以达到甚至略优于英国传统工艺生产的 MA 铺装结构高温性能，采用 GMA 工艺解决了今后实桥桥面铺装施工时的生产工效问题，同时 GMA 浇注式沥青混凝土的性能可以达到英国标准体系要求．

The mastic asphalt (MA) has a weak high-temperature performance.In the investigation,the high-tem-perature performance of two kinds of British-style MA steel bridge deck pavements to be used in Hong Kong-Zhuhai-Macao Bridge was tested under accelerated load by using MLS66.The results show that (1) the MA produced withGerman-style GA craft,namely GMA,is equivalent or even superior to that produced with the traditional British-style craft in terms of the high-temperature performance; and (2) GMA can solve the real production ergonomicsproblems of bridge deck pavements,and the MA performance can meet the British-style standard.