Design & Construct - Bulk Excavations - Civil Construction. GLB has a number of quarries with gravel and sand located aroung Queensland to service all project requirements.. Item: Gravel, Pebbles, Rocks, Sand. Payment Method: American Express, Cash, Direct Debit, EFT, EFTPOS. Service Option: Quotes. Facility: Quarries. Kind: Blended, Coarse, Crushed, Crushed Rock. Material: Road Base. Assurance: Licensed, Standards Australia. Ownership: Australian Owned, Locally Owned