S1 · Cement-treated gravel · Lead system
Light traffic in three days, trucks in seven, and no saw-cut joints
A 40 mm recycled-plastic grid filled with cement-treated chips: a hard, dust-free grey surface for truck yards and plant roads.
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RINAC, Mumbai: the finished yard in daily use, on OC-LW 40
In under 20 seconds
Grid, fill, finished
Why it wins
- Built for trucks up to 49 t gross. The empty OC-HD 40 panel carried 170 t/m² in the latest lab compression test; the pavement itself is designed from your traffic and soil.
- No saw-cut joints, no dowels. The cells arrest shrinkage cracks, so there is no joint cutting or sealing crew.
- Light traffic in three days, not four weeks. Moist-cured 3 days; light vehicles at 3 days, trucks at 7 once the 7-day cubes reach 2 MPa. Built bay by bay in shutdown windows.
- Dust-free, repairable. A hard grey surface that reads as concrete; damaged cells are refilled, not cut out.
- Designed to the terrain and the rain. Cross-section by topography, drainage by rainfall intensity: plain or steep sites.
- ESG line item. Per 1,000 m²: 6.6 t of plastic waste reused, and cement only in the 40 mm layer, at 4–6%. The handover file reports the numbers for your site.
Where it fits
Plant and factory roads · truck parking and marshalling yards · solar and wind park internal roads · fire lanes · container yards · township service roads.
Build-up
The 40 mm GridMats® grid (OC-HD 40 for trucks, OC-LW 40 for lighter traffic), laid on 20–30 mm of M-sand or crusher-dust bedding over a compacted base and a non-woven geotextile separation layer, and filled with crushed 6–12 mm chips treated with 4–6% cement, plate-compacted and brushed flush. Kerb or edge restraint on both sides; U-nails one per 2–3 m² on roads and slopes, one per 10 m² on flat yards, extra on embankments, edges and cut lines.
Choose S1 when
- Trucks every day, up to 49 t gross (OC-HD 40; OC-LW 40 for lighter traffic)
- A hard, dust-free grey surface
- Light traffic in 3 days and trucks in 7
- No saw-cut joints to cut, seal or crack
Not ideal when
- The surface must be fully permeable: choose S2
- The contract requires asphalt (S5) or a concrete finish (S4)
What we need from you
- Area: length × width, or m²
- Location: city or a map pin
- Heaviest vehicle and vehicles a day
- Soil CBR if you have it, or the soil type
- The finish you want
- A site photo or layout drawing
Datasheet
| Installed range | Application time | Test data | Product | Product price, for procurement | Reference |
|---|---|---|---|---|---|
| ₹130–177 / sq ft (₹1,400–1,900 / m²) indicative* | 300–400 m² of grid per crew-day · light traffic 3 days · trucks 7 days, once the 7-day cubes reach 2 MPa · supply date confirmed with the PO | Lab compression tests on the panel: 170 t/m² empty (latest test report); filled, about 320 t/m² with cold asphalt and 3,200–4,000 t/m² with M25 concrete at 5 days (Stedrant, 2021) · mix designed for a 7-day UCS of 2–3 MPa | OC-HD 40 for trucks (459 × 558 × 40 mm, 1.7 kg per panel) · OC-LW 40 for lighter traffic (500 × 500 × 40 mm) · 100% recycled PP | ₹84–107 / sq ft (₹900–1,150 / m²) OC-HD 40 by order size, ex-works · ex-GST · ex-freight | RINAC, Mumbai: cold-storage truck yard on OC-LW 40 with 6% cement, 2025, in daily use |
*Installed cost varies with local material availability, labour, transport, base design and site conditions; every site is priced from its own design. The geotextile separation layer is a separate BoQ item, not included. Product prices exclude GST (18%) and logistics.
On site
Design concept
S1 for estate parking: a design concept
From a recent proposal for a 12-villa estate: 4,000 sq ft (50 × 80 ft) of parking on the 40 mm grid (OC-HD 40 in this proposal; OC-LW 40 also suits car-only traffic) with cement-treated aggregate in the cells, and a Cool Green Wall on the inner face of the boundary wall. The render shows the gravel loose; in S1 it is cement-treated, compacted and brushed flush. Where the client wants a green surface, visitor and overflow bays can be S3 grass and soil, which take cars once the grass is established (4–6 weeks).
RenderConcept renders from a recent GridMats design proposal, not photographs of a built site. Each site is designed from a survey, and the sizes, loads and finishes are confirmed in the design.
Installation at a glance
The steps, what you need and when it opens, on one page. The installation guide comes by email on request; the SOP, the hold-point checklists and the method statement for your site come with your order. We train your contractor’s team: on site for up to 3 days for orders of 2,000 m² or more once the site is confirmed ready, online at no extra cost below that; on-site training is built into the product rate (one PO).
Test reports
Bureau Veritas and Stedrant load tests, GreenPro, patent 398992, IIT Hyderabad research. See Engineering.
Drainage and terrain
Designs are customised to geography, rainfall intensity and topography: sub-surface drains sized to the rainfall class, cross-sections for plain and steep terrain.
Defect liability
Defect liability: 1 year (DLP), our standard practice. After the training visit, your team shares project status updates (photographs, test reports, and any roadblocks or challenges) at each hold point and at the intervals set in the project agreement; the DLP applies only when these updates have been shared.
Watch
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