Material Supply

Sand Cement (Stabilised)

Stabilisation Solutions & Precision Blending — We offer a comprehensive range of both natural and recycled sands for stabilisation, with customisable sand-to-cement ratios tailored to meet the specific requirements of your next project.

Stabilised Sand Mix Ratios

Ratio	Natural	Recycled
33:1	33:1 Natural Stab Sand	33:1 Recycled Stab Sand
25:1	25:1 Natural Stab Sand	25:1 Recycled Stab Sand
20:1	20:1 Natural Stab Sand	20:1 Recycled Stab Sand
14:1	14:1 Natural Stab Sand	14:1 Recycled Stab Sand
12:1	12:1 Natural Stab Sand	12:1 Recycled Stab Sand
10:1	10:1 Natural Stab Sand	10:1 Recycled Stab Sand
09:1	09:1 Natural Stab Sand	09:1 Recycled Stab Sand
08:1	08:1 Natural Stab Sand	08:1 Recycled Stab Sand

Advanced Manufacturing Technology

At NA Group's Padstow Stabilisation Centre, we utilise the state-of-the-art IMS 1200-20TB pugmill blender. This advanced equipment features integrated PLC controllers and specialised software, allowing us to:

Consistency: Store and execute complex mix designs with absolute consistency.
Precision: Ensure high-precision batching of all raw materials.
Moisture Control: Control water addition with exact accuracy to achieve the specific moisture content required for your site deliverables.

Remote batching and automation control via mobile interface.

Certified Quality & Compliance

Quality is at the core of our production. Our cementitious binders comply with AS3972 and TfNSW 3211, and are registered under ATIC codes 059 and 060.

We utilise Independent Cement Limited, an ISO 9001 certified supplier, to ensure the reliability of every batch. Additionally, our natural sand is sourced from Select Sands and complies with the Water Services Association specification WSA PS-350 for Type B compaction sand.

AS3972 Compliant

TfNSW 3211

ATIC 059 & 060

ISO 9001 Supplier

WSA PS-350

Roadbase Cement (Stabilised)

Cement-stabilised DGB20 creates a stronger, longer-lasting, and more reliable base layer for civil, construction, and landscaping projects. It improves load-bearing capacity, compaction, and performance on weak ground.

Stabilised DGB20 Mix Designs

Cement Content	Natural Stabilised DGB20	Recycled Stabilised DGB20
2%	2% Natural Stab DGB20	2% Recycled Stab DGB20
3%	3% Natural Stab DGB20	3% Recycled Stab DGB20
4%	4% Natural Stab DGB20	4% Recycled Stab DGB20
5%	5% Natural Stab DGB20	5% Recycled Stab DGB20

Compliance & Applications

We utilise both natural and recycled DGB20 that complies with TfNSW 3051 specifications.

Roads, pavements, and civil infrastructure
Driveways, access roads, and crossovers
Under pavers and hardstand areas
Soft or unstable ground remediation
Commercial and residential subdivisions

Sands

We supply a variety of natural and recycled sands suitable for diverse project requirements.

Coarse Washed Sand

High-quality natural sand, thoroughly washed for cleanliness and performance.

Compaction Sand

Type B compaction sand compliant with WSA PS-350 specifications.

Manufactured Sand

Precision-engineered manufactured sand for consistent grading and performance.

Recycled Sand

Sustainable recycled sand solution for environmentally conscious projects.

Common Applications

Sub-base: Effective trimming layer under concrete slabs.
Utility: Trench filling and utility trench backfilling.
Civil / Landscaping: Paving sand, bedding sand for pipes, general fill, and landscaping.

Roadbase

Our roadbase products meet the strict specification requirements of TfNSW 3051.

Natural DGB20

Premium natural dense graded base material for high-performance applications.

Recycled DGB20

Sustainable recycled base material, fully compliant with TfNSW 3051.

Ideal For: Driveways, roads, hardstand areas, and a wide array of civil engineering applications.

Aggregates

Derived from a tertiary process at hard-rock quarries, these durable granite products offer exceptional versatility and strength.

Available Sizes

20mm Blue Metal

14mm Blue Metal

10mm Blue Metal

7mm Blue Metal

Primary Uses

Effective drainage material
Backfilling behind retaining walls
Permeable layers beneath concrete slabs
Decorative landscaping and functional ground cover

Building Partnerships Through Quality and Excellence

At NA Group, we understand that success in the construction industry is built on more than just high-spec materials — it is built on trusted relationships. We view our customers as long-term partners, and we are committed to supporting your project's success through open communication, reliability, and a shared drive for excellence.

Our People: The NA Group Difference

What truly sets us apart is the team behind the technology. The professionals at NA Group bring a wealth of industry knowledge and years of hands-on experience to every order. Our team is driven by a culture of operational excellence — we don't just supply materials; we provide solutions.

Whether it is tailoring a custom sand-to-cement ratio or coordinating 24-hour delivery schedules to keep your site moving, our staff are always willing to go the extra mile. We take pride in our craft, ensuring that our technical expertise and dedication to service help you overcome challenges and achieve superior results on every project.

Need a Custom Mix Design?

Contact our team to discuss tailored stabilisation solutions for your project.