Cement blanket for sale
1. Quick installation: No on-site concrete mixing required; installs like carpet and is easy to cut to form complex shapes.
2. High strength and durability: excellent compressive and flexural strength; resistant to freeze-thaw cycles and chemical corrosion.
3. Fire resistance: non-combustible material with fire resistance class A.
4. Seamless and impermeable: The monolithic structure provides excellent waterproof and erosion resistance.
5. Environmental friendliness and versatility: low dust and waste; Suitable for vertical, inclined and complex surfaces.
Cement Blanket (GCCM)
1 Manufacturing Process
Cement blanket (GCCM) is a flexible cement-filled geosynthetic mat. Soft to unroll and cut when dry; it hardens quickly into reinforced concrete after watering. It eliminates mixing and formwork, cuts labour and construction time. Good anti-scour, waterproof and anti-corrosion performance. Ideal for channel lining, slope protection, aquaculture ponds and emergency rehabilitation works.
2 Specifications
Table 1 Physical and cured properties (JC/T 2884-2025, cl. 6)
Property | Requirement |
Cured thickness | 10 / 12 / 15 mm; ≥ 10 mm and ≥ nominal |
Size tolerance | Length ≥ –2 % of nominal; width ± 3 % |
Mass per unit area | ≥ 95 % of nominal (nominal 12 kg/m² → ≥ 11.4) |
Peel strength | GCCM-N ≥ 1000 N/m; GCCM-S ≥ 100 N/m |
Flexural strength (cured) | ≥ 3.0 MPa |
Impact | No visible crack or damage (falling ball) |
Impermeability | Type W: no damp mark or droplet on reverse face |
Frost, 50 cycles | No crack / scaling; flexural loss ≤ 20 % |
Fire | ≥ Class B1 |
Abrasion | ≤ 400 mm³ |
Ageing, UV 25 cycles | Flexural loss ≤ 10 %; no crack / scaling |
Table 2 Supply range and procurement / stock data
Item | Range |
Thickness | 10/12/15 mm; 5–8 mm light and 20 mm heavy on request |
Width | 2.0/2.5/3.0/4.0 m; others by agreement |
Length / roll | By agreement; common 10–30 m (20–120 m²/roll at 2–4 m) |
Mass per unit area | 8–20 kg/m² by thickness; 12 kg/m² most tendered |
Roll mass | 60–240 kg/roll - plan lifting; 20–30 m rolls: 2–4 workers |
Price (ex-works, CN) | 2024–25: ~20–60 CNY/m² (8–12 mm); FOB ~5–18 USD/m² (5–13 mm) |
Stock policy | 10/12/15 mm × 2 & 3 m stocked; 2.5/4 m and 20 mm to order, 7–15 d |
Packing | Moisture-proof wrap; roll net mass ≥ 99 % of marked; 20-roll sample ≥ 100 % of total marked |
Shelf life | 90 days from production date in unopened, dry storage; re-test after expiry |
3 Applications
The mat replaces poured concrete, shotcrete or riprap where access is poor or the work must finish in hours. It is surface armour, not a structural slab: it resists erosion, scour and seepage, but carries no bending load over a void and does not stop a slope from failing.
Table 3 Typical applications and grade selection
Application | Function | Typical thickness | Key point |
Canal / ditch lining | Seepage control, smooth invert | 8–12 mm | Overlap downstream; anchor crest/toe |
River bank, reservoir shore | Scour and wave armour | 12–15 mm | Toe below low water; Type W |
Cut slope, embankment face | Rain erosion, surface sealing | 10–12 mm | Anchor trench at crest; ≤ 1:1 |
Culvert, pipe outlet | Impact and abrasion protection | 12–15 mm | Wrap invert; overlap into channel |
Concrete repair, spalling | New wearing surface on old concrete | 8–10 mm | Sound, cleaned, damp substrate |
Fish pond, farm channel | Seepage and bank stability | 8–10 mm | Low-alkali mix; cure before filling |
Landfill cover, containment berm | Surface sealing under armour | 12–15 mm | Type W; seam test; chemical check |
Emergency flood repair | Rapid hard armour | 10–12 mm | Stock item; any fresh water |
4 Installation
Sequence: subgrade → laying → overlap & fix → hydrate → cure → inspect. Subgrade level and compacted, no loose soil, roots, sharp stone or standing water; fill hollows > 5 cm; slope ≤ 1:1 without bench terracing. Knife-cut the roll, allowing 10–15 cm extra at every edge for overlap and anchoring.
1. Lay top-of-slope down (channels: downstream up), fibre face up, backing against subgrade; do not drag the roll; pull only enough to remove wrinkles. Cut a 5 cm shallow rebate at laps; upper sheet over lower in the flow direction. Overlap 10–15 cm longitudinally and ≥ 15 cm transversely; seal laps with a 5–8 mm bead of sealing compound or cement paste; screw or stitch at 10 cm centres where specified. Fix with U-pins at 1.0–1.5 m, tightened to 0.5 m at crest, toe, corners and laps; bury the crest edge in a 300 × 300 mm anchor trench.
2. Hydrate in two passes, low-pressure spray (not a jet - it washes cement out): ≥ 9 kg/m² water for 10 mm thickness, until colour darkens uniformly and the underside is just damp; walk on it only after initial set. Below 5 °C insulate; above 30 °C cover at once and keep moist. Cure ≥ 3 days with water (7 d for full strength); no traffic, stacking or backfill on the fresh mat. Inspect: uniform colour, no dry patches, hollows or lifted edges; patch tears with ≥ 20 cm lap, fill pinholes with mortar; re-coat with cement slurry every 5–10 years.
5 FAQ
1. Q: What water can be used for hydration?
A: Fresh, brackish and even seawater are acceptable. High-pressure jet is forbidden; gentle spray is required.
2. Q: Can cement blanket span voids or replace structural concrete slab?
A: No. It is surface armour for erosion control. It cannot bridge cavities or bear heavy wheel loads. Hollow areas shall be filled and compacted before laying.
3. Q: How long does it take to gain strength?
A: Initial set within 2–4 hours; reaches working strength in around 24 hours, full curing strength in 7 days. Keep wet evenly within the first 2 hours after watering.
4. Q: What thickness options do you supply?
A: Common specifications: 5 mm, 6 mm, 8 mm, 10 mm, custom sizes available. Thicker grades are selected for high-velocity water flow.
Company Profile
Shandong Yuanpeng Environmental Protection Technology Co., Ltd was founded in 2022 with a registered capital of 50 million, more than 300 employees, covers an area of 35,000 square meters, equipped with professional technical R&D teams, is a comprehensive enterprise integrating production, sales and after-sales service.
