Composite Material Standard Drainage Grates

I. Technical Features

1. Material & Manufacturing

Material Properties: Glass/carbon fiber-reinforced composites provide tensile strength ≥420 MPa and elongation ≥10%, surpassing traditional gray iron (HT150).
Surface Treatment: Anti-corrosion coatings (e.g., epoxy or zinc-rich primers) enhance durability in humid, saline, or chemically aggressive environments.

2. Structural Design

Modular Assembly: Circular, semicircular, or cross-shaped components adapt to varying drainage channel sizes (e.g., 750×450 mm, 380×680 mm), with optional pre-cut holes for landscape lighting.
Water Management: ≥80% open area ratio stores rainwater for gradual absorption while directing runoff to minimize soil erosion.
Anti-Slip & Load-Bearing: Textured surfaces (friction coefficient ≥0.6) and load capacity ≥1 ton per unit ensure pedestrian safety and resistance to vehicular damage.

II. Core Advantages

1. Anti-Theft Design

Non-recyclable material inherently deters theft; optional locking mechanisms further secure underground infrastructure.

2. Corrosion & Weather Resistance

Withstands acids, alkalis, and extreme temperatures (-50°C to +300°C), rated for Class 3+ anti-aging performance, suitable for coastal/industrial zones.

3. Lightweight & Easy Installation

1/3–2/3 lighter than cast iron, reducing transport/installation costs, ideal for emergency repairs or high-maintenance areas.

4. High Load Capacity & Safety

Compressive strength ≥400 kN with excellent flexibility, eliminating fracture risks. Heavy-duty models (e.g., B125-grade) suit roads with heavy traffic.

5. Eco-Friendly & Aesthetic

Reduced mining resource consumption aligns with sustainability goals; customizable colors/textures blend with urban landscapes.

6. Noise Reduction & Durability

Zero metal-on-metal noise; wear-resistant design ensures 20+ year lifespan with minimal upkeep.

III. Applications

Municipal Projects: Road drainage, utility access holes (standard sizes: 750×450 mm, 380×680 mm).
Public Spaces: Parks, plazas, and sports fields requiring aesthetics and functionality.
Harsh Environments: Chemical plants, coastal areas with high corrosion risks.
Residential Zones: Flat grates for low-lying water collection; combined designs prevent debris clogging.

IV. Standards & Certifications

International: EN 124 B125 (load rating), ASTM D790 (flexural properties).
China: GB/T 38534-2020 (FRP engineering standards), CJ/T 327-2010 (drainage grates).
Certifications: China Environmental Labeling (Ten-Ring), EU CE-CPR (Construction Products Regulation).

Summary

Composite standard drainage grates revolutionize urban drainage upgrades through lightweight design, zero maintenance, and cost efficiency. Key strengths:

1. Cost-Effective: 50% lower lifecycle costs for budget-sensitive projects.
2. Sustainability: 70% carbon reduction in production + recyclable materials.
3. Aesthetic Integration: Customizable designs harmonize with cityscapes.