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FRP Marking Brick

Applications​​:Utility-scale solar farms:​​ Module-level access for O&M ​​Commercial rooftops:​​ OSHA-compliant maintenance paths ​​Floating PV systems:​​ Corrosion-resistant versions ​​BIPV projects:​​ Architectural-grade finishes
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Product information
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1.Keywords

​​

Buried Cable Warning Brick, Pipeline Marker Tile, Underground Utility Indicator, Precast Concrete Marker, Detection Plate, Construction Safety Brick, High-Visibility Warning Tile, Excavation Alert Brick, Non-Metallic Detection Marker, RFID-Embedded Warning Brick

 

2.​​Technical Specifications​​

​​

1. Material & Construction​​

 

​​Parameter​​

​​Specification​​

​​Material​​

Precast Concrete / Composite Plastic / FRP

​​Dimensions (mm)​​

300×300×50 (Standard), Custom Sizes Available

​​Weight​​

3-5kg (Concrete), 1-2kg (Plastic/FRP)

​​Detection Method​​

Magnetic (Ferrous Core) / RFID / Passive EM

​​Color Coding​​

Red (Power), Yellow (Gas), Blue (Water), etc.

​​

2. Standard Features​​

Surface Markings​​:

Embossed/Engraved Symbols (e.g., ⚡ for Electricity)

UV-Resistant Paint (RAL Colors)

 

​​Detection Range​​:

 

​​Type​​

​​Detection Depth​​

​​Tool Required​​

Magnetic

Up to 1.2m

Magnetic Locator

RFID

Up to 0.8m

RFID Scanner

Passive EM

Up to 1.5m

Cable Avoidance Tool (CAT)

 

​​3. Mechanical Properties​​

 

​​Property​​

​​Concrete​​

​​Composite Plastic​​

​​FRP​​

Compressive Strength

30 MPa

15 MPa

25 MPa

Impact Resistance

Moderate

High

Very High

Chemical Resistance

Alkali-Resistant

Acid/Alkali Resistant

pH 1-14

 

3.​​Key Advantages​​

​​

1. Excavation Safety​​

​​Prevents Damage​​: Clearly marks buried utilities to avoid accidental strikes during digging.

​​Multi-Layer Detection​​: Combines visual cues (color) with electronic detection (RFID/magnetic).

 

​​2. Durable & Weatherproof​​

​​Concrete​​: Frost-resistant (300+ freeze-thaw cycles).

​​Plastic/FRP​​: UV-stabilized for 10+ years outdoors.

 

​​3. Easy Installation​​

​​Placement​​: Buried 100-300mm below surface, above utility lines.

​​Alignment​​: Grid patterns for easy mapping (e.g., every 5m along pipelines).

 

4.​​Industry Applications​​

​​

A. Power Utilities​​

 

​​Application​​

​​Marker Type​​

​​Detection Method​​

Underground Cables

Red Concrete Brick

Magnetic + RFID

Transformer Pads

Yellow FRP Tile

Passive EM

 

​​B. Oil & Gas​​

​​Pipeline Routes​​:

 

​​Feature​​

​​Specification​​

High-Pressure Lines

Double-Layer RFID Bricks

Valve Locations

Custom Symbols (e.g., ⚒️)

 

​​C. Municipal Water/Sewer​​

​​Water Mains​​: Blue plastic tiles with "WATER" embossed.

​​Sewer Lines​​: Green tiles with depth markings (e.g., "DEPTH 2.5m").

 

​​D. Telecom & Fiber Optics​​

​​Fiber Routes​​: Orange bricks with "FIBER" + "NO DIG" warnings.

 

​​5.Certifications & Compliance​​

 

Safety Standards​​: OSHA 1926.651 (Excavation), API RP 1166 (Pipeline Marking).

​​Detection​​: Compliant with CGA (Common Ground Alliance) best practices.

 

6.​​Custom Options

 

✓ Multilingual Text (English/Spanish/Mandarin)

✓ Glow-in-the-Dark Strips for Low-Light Visibility

✓ QR Codes Linking to Utility Maps

 

7.​​Contact for

 

Custom symbol/logo embossing

Bulk orders (>500 units)

GIS integration services

FRP Marking Brick Customer Evaluation

United States

March 4, 2024

United States

The FRP marking bricks are highly durable and easy to identify. They provide clear warning and positioning for underground utilities, greatly improving construction safety.

Germany

April 10, 2024

Germany

We are satisfied with the strength and weather resistance of these FRP marking bricks. The markings remain clear even after long-term outdoor exposure.

United Kingdom

May 17, 2024

United Kingdom

The lightweight design made installation very convenient. These FRP marking bricks are a reliable solution for pipeline and cable route identification.

Canada

June 1, 2024

Canada

Excellent visibility and consistent quality. The FRP material does not crack or fade, making it suitable for long-term underground marking applications.

Australia

July 5, 2024

Australia

Custom text and color options helped us meet local utility standards. The product quality and delivery were both very satisfactory.

FRP Marking Brick FAQ

  • What is an FRP marking brick made of?

    It is made from Fiber Reinforced Plastic (FRP), which offers high strength, corrosion resistance, and long service life.

  • What are FRP marking bricks used for?

    They are used to mark and warn of underground utilities such as power cables, gas pipelines, water pipes, and communication lines.

  • Are the markings durable and long-lasting?

    Yes, the markings are molded or printed using durable methods that resist fading, wear, and environmental damage.

  • Can FRP marking bricks be customized?

    Yes, customization options include size, color, warning text, language, and logo based on project requirements.

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20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei Province, China

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