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About usXiamen YongFeng Stone Co., Ltd. is a professional manufacturer of stone products in South East China. It has been dedicating itself to stone industry since 1996. With long-term concentrating on granite products in Fujian, the world biggest stone products producing area, YongFeng Stone has become an influential Chinese provider due to its outstanding reputation of reliable quality of its products.
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ProductsWe manufacture a wide range of stone products, including tiles, slabs, stairs, countertops, vanities, fireplaces, paving stones, curbstones, tombstones, mosaics, sculptures, pebbles, and medallions. Our products are suitable for interior and exterior applications, public spaces, and landscape projects.
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Dark Grey Kerb Stones
- Commodity name： Dark Grey Kerb Stones
- Product description
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Products Description
Dark Grey Kerb Stones are made from dense natural granite with a deep grey tone, offering both structural strength and modern aesthetics. Their darker color creates a strong visual edge for roads, pathways, and landscaping areas, making them ideal for large-scale infrastructure and commercial projects that demand both performance and design value.
The robust granite composition ensures they withstand high traffic, harsh climates, and long-term wear, while maintaining their clean appearance for decades.
Technical Specifications
Item
Details
Product Name
Dark Grey Kerb Stones / Granite Kerbs
Material
Natural Granite
Standard Sizes
100×200×1000 mm, 150×300×1000 mm, Custom dimensions available
Surface Finishes
Flamed, Bush Hammered, Chiseled, Natural Split
Compressive Strength
≥120 MPa
Packaging
Wooden crates with foam and straps
Color Options
Dark Grey
Why Choose Our chinese granite kerbs?
Elegant Dark Grey Appearance – Provides a sleek, modern finish for urban environments
Superior Strength & Durability – High compressive resistance, suitable for heavy load zones
Weather & Abrasion Resistance – Ideal for outdoor applications with extreme conditions
Custom Sizing & Profiles – Available in multiple shapes, sizes, and finishes to fit your drawings
Mass Production Capacity – Consistent bulk supply for municipal and commercial projects
Application
- Elegant Dark Grey Appearance – Provides a sleek, modern finish for urban environments
- Superior Strength & Durability – High compressive resistance, suitable for heavy load zones
- Weather & Abrasion Resistance – Ideal for outdoor applications with extreme conditions
- Custom Sizing & Profiles – Available in multiple shapes, sizes, and finishes to fit your drawings
- Mass Production Capacity – Consistent bulk supply for municipal and commercial projects
How to Install corner kerb stones
1. Site Preparation
Define and mark the curb line according to the construction drawings.
Excavate a trench wide and deep enough to accommodate the kerb stones plus the concrete base.
Level and compact the subsoil to provide a stable foundation.
2. Laying the Concrete Base
Place a 100–150 mm thick layer of lean concrete (C15 or similar) as the foundation.
Level and smooth the base surface while the concrete is still wet.
Ensure the base has a slight slope to support drainage if needed.
3. Positioning the Kerb Stones
Place each Dark Grey Kerb Stone on the wet concrete base.
Use a rubber mallet to tap the stone gently into position.
Align the stones vertically and horizontally using a string line or laser level.
Keep a consistent joint gap (5–10 mm) between stones for mortar filling.
4. Joint Sealing
Fill the joints with cement mortar or a dry sand-cement mix.
Compact and smooth the joints to avoid gaps or water ingress.
For long road sections, add expansion joints at regular intervals.
5. Backfilling and Haunching
Place concrete haunching behind the kerb stones to lock them in place.
The haunching should rise at least halfway up the back of the kerb stones.
Compact backfill soil or gravel around the haunching once cured.
6. Curing and Finishing
Allow at least 24–48 hours for the concrete to cure before exposing to traffic or heavy loads.
Clean off any cement stains from the kerb surfaces.
Re-check line, level, and alignment for final acceptance.
Testing data
Water Absorption
0.12-0.3%
Density
2600-2800 kg/cbm
Flexural strength
10-18 MPa
Compressive strength
80-230 MPa
If your project requires high-strength granite kerbs with a bold dark grey finish, our Dark Grey Kerb Stones deliver both durability and design appeal. They are built to endure high traffic and harsh weather, while elevating the visual quality of modern infrastructure projects.
Our Factory
Our company was established in 1996 and is a professional stone product manufacturer in East China. We have long been focusing on granite products from Fujian, the world's largest stone producing area.
Certificate
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Address: No. 340, S. Tongji Rd, Xiamen, China
Phone/Whatsapp: +86 15980865070
E-mail: Libiaofeng234@163.com
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