SRS-600UNI Carbon Fiber – Unidirectional 600 GSM FRP Strengthening System for Structural Concrete

The SRS-600UNI Carbon Fiber System is a high-strength, unidirectional, 600 gsm CFRP fabric engineered for the structural strengthening of concrete, masonry, and timber elements. With exceptional tensile strength, high elastic modulus, and predictable strain behavior, SRS-600UNI is designed for both engineered FRP strengthening projects and contractor-installed applications such as bowed wall stabilization and flexural reinforcement.

SRS-600UNI bonds externally to structural members using SRS-1000 Structural Epoxy Resin, forming a composite system that significantly increases load capacity, flexural performance, shear resistance, and crack control. Approved for use in commercial, industrial, municipal, and residential structural reinforcement projects.

Need stamped engineering design, FRP layout drawings, or project-specific calculations?

Our engineering team provides CFRP design support, repair details, and submittal packages.

Request FRP Engineering Support

Column repair in parking garage using SRS 600 Uni-Directional Carbon Fiber

Crew installing SRS-600 unidirectional carbon fiber reinforcement on a large California retaining wa

Crew installing SRS-600UNI carbon fiber reinforcement on a residential retaining wall suffering from lateral soil pressure and structural cracking. The CFRP system was used to restore stability, increase load resistance, and prevent further inward movement as documented in this retaining wall reinforcement case study.

SRS-600UNI strip installed to strengthen a cracked structural slab

SRS-600UNI carbon fiber reinforcement installed on a commercial structural slab to restore flexural capacity and control slab cracking. This CFRP strengthening solution was used as part of a structural repair program to reinforce deteriorated concrete in a commercial facility.

Post-tensioned concrete slab prepared for structural strengthening using SRS-600UNI carbon fiber rei

The post-tensioned concrete slab is shown after surface preparation and inspection prior to the installation of SRS-600UNI unidirectional carbon fiber reinforcement. This project required CFRP strengthening to restore flexural capacity and address cracking, as detailed in our post-tensioned slab repair case study.

Crew installing SRS-600 unidirectional carbon fiber reinforcement on a large California retaining wa

1/9

Applications

The SRS-600UNI Carbon Fiber system is used in a wide range of structural strengthening projects involving concrete, masonry, wood, and select steel components. Designed for compatibility with epoxy-based FRP systems, it is commonly used in:

Structural Strengthening

Increase flexural capacity of beams, slabs, and joists
Strengthen elevated decks, parking structures, and framing members
Reinforce roof systems and deteriorated concrete elements

Shear & Crack Control

Provide supplemental shear resistance on beams and joists
Limit crack propagation in concrete or masonry
Stabilize surfaces before overlays or repair materials

Foundation & Wall Reinforcement

Stabilize bowing or inward-deflecting foundation walls
Provide vertical or horizontal reinforcement for load resistance
Strengthen retaining walls and basement walls

Column & Pier Strengthening

Unidirectional wrapping for column, pier, and pilaster flexural enhancement
Use with bidirectional fabric for confinement and shear strengthening

Rehabilitation & Restoration

Extend service life of aging or deteriorated concrete structures
Strengthen corroded, cracked, or repair-damaged members
Reinforce structures for change-of-use or added loading

Features & Benefits

High-Strength Unidirectional Reinforcement

600 gsm, unidirectional carbon fiber designed for flexural strengthening, wall reinforcement, and structural concrete repair.

Lightweight, Low-Profile Installation

Adds significant strength without adding weight or altering the existing structure. Ideal for retrofit applications.

Corrosion-Proof Composite System

Carbon fiber and epoxy system will not rust or deteriorate, even in harsh environments.

Compatible with SRS-1000 Epoxy Resin

Engineered for proper wet-out, bond performance, and reliable long-term adhesion.

Versatile Application Options

Suitable for beams, slabs, walls, piers, masonry, and foundation wall stabilization.

Fast Installation with Minimal Downtime

Applies easily to vertical, horizontal, and overhead surfaces, reducing labor and project delays.

Uniform Fiber Architecture

Consistent fiber orientation for predictable tensile performance and reliable structural reinforcement.

Specification

The strengthening system shall consist of a high-strength, unidirectional carbon fiber fabric with a nominal areal weight of 600 gsm, installed using a compatible epoxy saturant/adhesive. The installed composite shall meet or exceed the following minimum properties:

Tensile Strength: > 550 ksi (3,800 MPa)
Tensile Modulus: > 33 Msi (230 GPa)
Design Strain: 0.006–0.01 in/in (depending on application)
Fiber Orientation: 0° primary load direction
Fabric Type: Unidirectional, dry CFRP fabric

The CFRP strengthening product shall be SRS-600UNI Carbon Fiber as manufactured by Structural Reinforcement Solutions, Thornville, Ohio.

Installation Overview

Surface Preparation

Clean and grind the surface to sound concrete. Remove coatings, laitance, and weak material. Repair voids or uneven areas using SRS-2100 or SRS-2000 Structural Repair Paste.

Primer Application

Apply a uniform coat of SRS-1000 Structural Epoxy Resin to promote proper bonding between the substrate and carbon fiber.

Saturant & Fiber Placement

Apply epoxy saturant and position SRS-600UNI in the required orientation, ensuring full wet-out and adhesion. Roll out any trapped air.

Additional Epoxy Coat

Apply a final epoxy layer over the fabric to encapsulate fibers and complete the FRP composite.

Curing & Protection

Allow the system to cure at recommended temperatures. Protect installed CFRP from moisture, abrasion, and UV exposure until fully cured.

Storage Conditions

To maintain material performance, store all SRS-600UNI components in a dry, indoor environment away from direct sunlight and moisture. Recommended storage temperature is 40–95°F (4–35°C).

Carbon Fiber Fabric Shelf Life: Up to 10 years when stored in sealed packaging and protected from UV exposure.
Epoxy Resin Shelf Life: Approximately 2 years in unopened containers at recommended temperatures.
Do Not Freeze: Freezing may affect resin viscosity and bonding performance.
Keep Dry: Prolonged moisture exposure may impact adhesive bonding during installation.

Always refer to the SRS Technical Data Sheet and Safety Data Sheet for detailed handling and safety requirements.