1 Subgrade Preparation Tim Crosby: Grading Superintendent Chris DeJulio: Project Site Manager Subgrade Preparation Types of subgrade preparation Typical equipment used Purpose of equipment Grading Compaction Soils Testing Importance of Quality Subgrade Provide good support for placement and compaction of pavement Limit pavement deflections to acceptable limits Minimize differential movement due to frost and Shrinking/swelling soils Promote uniformity of support (Key element for good long term pavement performance)
Subgrade Preparation
May 05, 2023
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