Applied Technology Study On The Lower Surface Course Of ATB-30in Highway

Large-stone asphalt macadam mixture has good stability to prevent reflective crackingand rutting resistance, mainly used for asphalt pavement base structure. Domestic research onlarge-stone asphalt mixture used in asphalt pavement of the below layer is still at apreliminary stage. This thesis,as the basis ofthehighwayprojectfrom XianYang to XunYi,hasconducted a comprehensive study for the technology of asphaltstabilizedmacadam mixture(ATB-30) using in the following layers of asphalt pavement.This thesis, along the climate and traffic conditions of the someone highway forwardspecific requirements of the technical performance indicators on the composition of ATB-30asphalt including aggregates and asphalt filler, and has analyzed the structure and compositionas well as its strength characteristics of the formation mechanism of the large-stone asphaltstabilized macadam. Marshall test method was used to the mix design of ATB-30, then therutting test and water stability test were carried out to the selected gradation on asphaltmixture,the produced mix results of asphalt pavement beneath layers applied to adapt toATB-30integrated optimal performance asphalt stabilized macadam mixture was proposedthrough the analysis and comparison. As the basis of the " asphalt pavement constructionspecifications "(JTG F40-2004), it has studied the construction technology of asphaltstabilized macadam mixture (ATB-30) in terms of pre-construction preparation work, asphaltmixture mixing, transportation, paving, compaction and handling of large diameter seamless.And through practice it proposed forming quality programs and proposed the technicalsolutions as well as the following layer construction quality control system for theconstruction of asphalt stabilized macadam mixture.