Construction Detail Section with Concrete Base and Sub Base Layers

This construction detail drawing shows a clear sectional view of layered pavement construction used in building and infrastructure works. The detail illustrates the concrete layer at the top with a thickness of approximately 180 mm placed over a compacted base layer of about 300 mm. Below the base the sub base layer is shown with proper compaction depth to ensure load distribution. Material hatching clearly differentiates concrete base sub base and natural soil layers. Vertical dimensions and level markings support accurate execution on site. This construction detail AutoCAD file is suitable for architects civil engineers and builders preparing pavement floor and road foundation drawings.