INDOT #24 slag sand, also known as #24 steel slag sand, INDOT slag fine aggregate, or specification-grade slag sand, is a clean, coarse material produced from processed steel slag to meet applicable Indiana Department of Transportation requirements. Its controlled, sand-sized gradation provides consistent performance for concrete, asphalt, bedding, backfill, and compactable base applications.
The angular particles promote strong interlock and bonding, helping the material compact into a firm, stable layer while maintaining dependable drainage. Its durable composition and consistent texture make it a practical alternative to natural construction sand in projects that require strength, accurate grading, and specification-compliant performance.
INDOT #24 slag sand is widely used in roadway, municipal, industrial, and private construction because it combines the workability of coarse sand with the toughness and stability of processed steel slag. It spreads evenly, fills voids effectively, and performs well beneath pipes, pavement, slabs, and other structural improvements.
Common Applications of INDOT #24 Slag Sand
- Concrete and asphalt production
- Pipe bedding and utility installations
- Trench and structural backfill
- Base preparation beneath pavement and slabs
- Leveling and compacted sub-base work
- Roadway and infrastructure construction
- Fine grading around structures and utilities
- Municipal, commercial, and industrial projects