Asphalt Definitions and Terms

Home Knowledge Base Asphalt Terms Subbase

Categories

Categories

Tags

Tags

Aggregates APEX Asphalt Asphalt Unscripted Cold Weather Energy Fall Focus Fillers Fire Safety Heat Inside Access Mix Design Optimize Series overlay Pavement pavement design Paving Safety Sealants Seal Coat Specifications Summer Technician Awards Texas Department of Transportation thinlay thin overlay TOM tools and downloads Troubleshooting TXAPA Awards TxDOT TxDOT-TXAPA Awards underseal Warm Mix Asphalt Winter

Latest Posts

President’s Message

October 1, 2025

Building a Thriving Asphalt Pavement Ecosystem

October 1, 2025

Regionalization: TXAPA’s Bold Next Step

October 1, 2025

Introducing Apex: A TxDOT Quality Initiative for Asphalt Pavements

October 1, 2025

TxDOT Letting Report 2025 October

September 29, 2025

Receive All The Latest News And Information From TXAPA

This field is for validation purposes and should be left unchanged.

Subbase

Subbase refers to the course in the asphalt pavement structure immediately below the base course is called the subbase course. If the subgrade soil is of adequate quality, it may serve as the subbase.