Basecourse

Material: Premium Crushed Blue-Grey Aggregate / Basalt-Diorite Blend

Grading: Standard 0–20mm / 0–40mm (All-in well-graded mix with fines)

Product Overview

When it comes to construction, what’s underneath matters most. Basecourse - Bluish is a high-performance, well-graded aggregate engineered specifically to provide an rock-solid, high-density foundation. Sourced from premium blue-grey basalt and diorite deposits, this basecourse features a distinct aesthetic tint and superior mechanical properties.

With an optimal blend of angular crushed stone and binding fines, it compacts exceptionally tight, locking together to eliminate shifting, rutting, and moisture traps.

Key Applications

• Sub-Base & Base Layers: Ideal for highways, residential roads, and heavy-duty driveways.
• Paving & Patio Foundations: The ultimate flat, interlocking bed for interlocking pavers, concrete slabs, and asphalt.
• Heavy Traffic Zones: Perfect for commercial parking lots, machinery pads, and industrial yards.
• Walkways & Tracks: Provides a stable, low-maintenance surface for rural paths and walkways.

Why Choose Basecourse - Bluish?

• Superior Interlocking Action: The sharp, angular fractures of our crushed bluish stone bite into each other under compaction, offering far greater structural integrity than rounded river gravel.
• Excellent Load-Bearing Capacity: Engineered to distribute heavy vehicular weight evenly, preventing surface cracking and subgrade failure.
• High Compaction Density: The precise mix of stone sizes down to dust ensures minimal air voids, creating an impermeable, highly stable mat.
• Distinctive Aesthetic: The natural blue-grey hue offers a clean, premium look if left exposed for temporary roads or rural driveways.

Technical Specifications & Performance

PropertySpecificationSource MaterialHard Rock Basalt / DioriteColor ProfileDeep Bluish-Grey (When wet) / Light Slate Blue (When dry)Compaction RateExcellent (Achieves high CBR values)PermeabilityLow to Moderate (Optimized for maximum density)Sizing Options0–20mm (Fine/Standard) | 0–40mm (Heavy-Duty)

Pro-Tip for Installation: For maximum structural integrity, place Basecourse - Bluish in lifts of 100mm–150mm, lightly moisten, and compact thoroughly using a vibrating plate compactor or roller until a firm, non-yielding surface is achieved.

Ordering & Delivery Information

• Bulk Availability: Available by the ton, cubic meter, or in convenient 1-ton bulk bags.
• Delivery Options: Direct-to-site tipper truck delivery or commercial yard pickup.
• Contact our sales desk today for a custom quote, bulk discounts, or grading certificates.