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Superpave沥青混合料设计法概述1989—1992年美国实施了著名的公路战略研究计划,其中的一项重大研究成果就是Superpave(Superior Performing Asphalt Pavements)———高性能沥青路面技术。我国现行沥青混合料设计方法是马歇尔稳定度试验方法,包括以下内容。(1)选择沥青时采用针入度级规范,即根据设计者经验、气候条件选用合适的沥青等级。(2)选择混合料级配时,一般采用规范要求范围的中值。
Superpave Asphalt Mixture Design Overview 1989-1992 The United States implemented a well-known road strategy research project, one of the major research achievements is Superpave (Superior Performing Asphalt Pavements) --- high-performance asphalt pavement technology. China’s current asphalt mixture design method is Marshall stability test method, including the following. (1) Need to select the pitch when the penetration level specifications, that is, according to the designer’s experience, the selection of the appropriate weather conditions bitumen. (2) The choice of mixture gradation, the general use of the standard requirements of the median.