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随着高速公路的发展和道路建筑材料的不断进步,作为半刚性材料的水泥稳定级配碎石以其良好的力学性能、板体性、水稳定性以及抗冻性逐渐代替以往的二灰碎石,成为高速公路路面基层的首选材料。但也有些公路在通车后,暴露出水稳碎石许多缺陷如抗变形能力差,容易产生收缩裂缝,致使沥青面层产生辐射裂缝,进而产生网裂、沉陷。这些原因的产生都与施工中施工质量不严有关,所以加强施工过程的施工质量,尤为重要。水泥稳定级配碎石具有良好的性能,广泛用于高速公路的基层或底基层。结合工程实例,详细论述了在施工过程中的施工质量要点。
With the development of highway and continuous improvement of road construction materials, cement stabilized graded macadam, which is a semi-rigid material, gradually replaces the previous broken ash with its good mechanical properties, plate body, water stability and frost resistance Stone, become the preferred material for highway pavement grassroots. However, some roads open to traffic and expose many defects such as water stabilized gravel, such as poor resistance to deformation, easy to produce shrinkage cracks, resulting in radiation cracks in the asphalt surface layer, resulting in net cracking and subsidence. The causes of these problems are related to the unsmooth construction quality in construction. Therefore, it is especially important to enhance the construction quality of the construction process. Cement stabilized graded gravel has good performance and is widely used in the grassroots or subsoil of expressways. Combined with the engineering examples, the construction quality points in the construction process are discussed in detail.