Description
A “TxDOT road base,” also commonly called “flexible base” in Texas Department of Transportation (TxDOT) terminology, refers to a granular, unbound material used as a foundational layer beneath asphalt or concrete pavement, providing structural support and stability to the road surface, typically composed of crushed stone or gravel that is compacted to a specified density according to TxDOT specifications, primarily identified as “Item 247” in their construction manuals;.
Key points about TxDOT road base:
- Function: Acts as a base course to distribute traffic loads and prevent cracking in the upper pavement layers.
- Material: Usually made from crushed stone or gravel, with different grades depending on the required strength and application.
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Specification: Referred to as “Item 247” in TxDOT documents, which outlines the material properties, compaction requirements, and construction methods.
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Applications: Used for building new roads, repairing existing pavements, temporary access roads, and stabilizing subgrades.
