Which is Better: Cementitious Grout or Epoxy Grout?

Cementitious Grout vs. Epoxy Grout: Applications, Standards, Installation, and Manufacturer Introduction

Which is Better: Cementitious Grout or Epoxy Grout?

Both cementitious (cement-based) and epoxy grouts offer unique benefits and are suited for different applications. The choice depends on project requirements, environmental conditions, and performance expectations.

Cementitious Grout
Advantages:  
Economical and cost-effective  
Easy to mix, place, and clean  
Good compressive strength  
Suitable for general construction, machine base plates, precast panel connections
Disadvantages:  
Porous, less chemical resistance  
Susceptible to staining and degradation in aggressive environments  
Requires proper curing

Epoxy Grout
Advantages:  
Excellent chemical and mechanical resistance  
Non-porous, highly durable  
Superior bond strength and very low shrinkage  
Minimal water absorption; virtually waterproof  
Suitable for heavy-duty, chemical, or hygiene-sensitive environments
Disadvantages:  
Higher cost  
More complex mixing/application; requires skilled labor  
Harder to clean up before curing  
Limited working time (pot life)

Typical Applications
Cementitious Grout:  
Filling gaps beneath precast elements and machine base plates  
Anchor bolt embedding  
Repairing voids and honeycombs in concrete  
General infrastructure projects
Epoxy Grout:  
High-load machinery anchoring (compressors, pumps, turbines)  
Environments with exposure to chemicals or acids  
Food processing, pharmaceutical, and cleanroom facilities  
Marine and wastewater plants  
Tile jointing in industrial and laboratory environments

Relevant Standards
Cementitious Grout Standards:  
ASTM C1107: Standard Specification for Packaged Dry, Hydraulic Cement Grout (Non-shrink)  
EN 1504-6: Anchoring of reinforcing steel bar  
ACI 351.1R: Grouting between Foundations and Bases for Support of Equipment and Machinery
Epoxy Grout Standards:  
ASTM C881: Standard Specification for Epoxy-Resin-Base Bonding Systems  
ASTM C579: Compressive Strength of Chemical-Resistant Mortars, Grouts, and Monolithic Surfacings  
ACI 503.1: Standard Specification for Bonding Hardened Concrete, Steel, Brick, and Other Materials

Installation Methods

Cementitious Grout:  
Prepare surface: Clean, roughen, saturate surface dry (SSD).
Mix grout per manufacturer's instructions.
Pour or pump grout continuously from one side to avoid air entrapment.
Use formwork as required.
Cure properly using wet curing or curing compounds for recommended period.

Epoxy Grout:  
Ensure surface is clean, dry, and free from oil/grease.
Mix base and hardener thoroughly, add filler as needed.
Pour or trowel grout into place immediately—avoid delay due to short pot life.
Remove air voids using vibration or rods if needed.
Protect from direct sunlight or high temperatures during curing.

Clinic Beton Iran Group: Leading Grouts Manufacturer

Clinic Beton Iran Group (including Rayeh Sabz Beton Co. and Zharf Taban Mehr Co.), under the renowned brand RBS-CONTECH, is a pioneer in manufacturing and supplying a comprehensive range of cementitious and epoxy grouts. The company provides advanced grout materials designed for industrial, infrastructure, and specialty applications, backed by technical support and strict quality standards.

Contact Information:
Website: clinicbeton.com
RBS-CONTECH: www.rbs-contech.com
Email: clinicbeton.com(AT)gmail.com
Phone: +98 21 88070173 / +98 21 88584906
Mobile: +98 910 2333497 / +98 912 0916271 / +98 912 0916272

Clinic Beton Iran Group offers tailored solutions for your grouting needs, ensuring reliability, durability, and compliance with project specifications worldwide.

 

Which is Better: Cementitious Grout or Epoxy Grout?

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