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Concrete Slab


SRS 600UNI Carbon Fiber logo

Revolutionizing infrastructure: cutting-edge carbon fiber slab repair solutions

Applying Carbon Fiber under cracked concrete slab

Compared to traditional reinforcement materials like steel, carbon fiber is significantly lighter. This lightweight characteristic minimizes the additional loads imposed on the structure. Additionally, it simplifies handling and installation, reducing labor costs and project timelines. Moreover, the high tensile strength of carbon fiber enables it to effectively distribute stress throughout the repaired area, enhancing the overall structural stability and resilience of the concrete slab.

Carbon fiber layout planning and surface preparation

SRS field support and layout planing for carbon fiber structural slab strengthening
Surface preparation prior to SRS Carbon Fiber Application

Surface preparation is critical for the successful installation of Fiber Reinforced Polymer (FRP) systems, particularly when dealing with high-strength concrete that is commonly used in commercial and industrial construction projects. 

Utilizing epoxy injection to reinforce cracked surfaces

Cracked Concrete Slab
SRS 2100 paste
Injection Ports

The SRS-2100 concrete paste is a rapid cure, two-component formula and is ideal for filling voids in cracked concrete, setting injection ports and anchoring rebar. SRS-2100 is tested to ICC-ES, AC308 and ACI 355.4 to deliver ultimate versatility in wet or dry environments under a wide temperature range.


Ports are then set in place for epoxy injection of hairline cracks in the concrete. The ports can then be connected directly to SRS-3000 33oz cartridge nozzles. The injection port's patented design virtually eliminates under-filling the crack with their check valve ball bearing that prevents back-flow, even after the resin is dispensed into the port. The injection tube assembly allows for precise and controlled dispensing of epoxy resin into the crack. This ensures uniform coverage and effective sealing, minimizing wastage of the epoxy material.

SRS-3000 is an ultra-low viscosity, self-leveling structural epoxy resin, ideal for low or high pressure crack injection for vertical, overhead and horizontal gravity fed crack repair applications. Formulated for long pot life which provides extended workability, while the low viscosity and surface tension allows for deep crack penetrations.

Engineered solutions for commercial strengthening - Carbon Fiber pull test

Dolly's for bond test of carbon fiber to concrete
Adhesion tester
Setting dolly's for adhesion test

To ensure the safety and performance of the carbon fiber application, bond tests can be performed to provide confirmation of the strength and reliability of the FRP system. In order to test the bond strength of the system, dolly's are epoxied to the surface of the FRP.  Once cured, the FRP around the dolly is cut in order to isolate the pull-off test to a known area.  The test is then carried out to confirm a failure in the substrate rather than in the bond to the substrate.


Throughout the test, various parameters are measured and recorded, including the applied force, the deformation or displacement of the FRP, and the corresponding strain. These data points help characterize the mechanical behavior of the carbon fiber bond. This analysis helps assess the effectiveness of the repair and ensures it meets the required specifications.

A controlled force is applied to the repaired area using aluminum dollies, gradually increasing until the structure reaches its breaking point or until the desired data is obtained. The force can be applied at a constant rate to measure the stress-strain relationship accurately.

The results of the pull test are interpreted to confirm an adequate bond of the carbon fiber to the concrete substrate and made available immediately to share with the engineers of record on the project.

Installation of SRS - 600UNI over structural slab crack

Applying SRS Carbon Fiber over cracked concrete slab
Carbon Fiber Reinforcement of Structural Slab Cracks
Post tension slab repair in high rise
Parking garage underneath cracked concrete slab

SRS-600 is a high-strength, non-corrosive unidirectional carbon fabric, specifically engineered for on-site lamination with SRS-1000 saturant resin. This unique combination forms a robust carbon-fiber-reinforced polymer (CFRP) composite, ideal for various structural reinforcement applications.

SRS carbon fiber composite straps permanently secure and stabilize the concrete slab against any further movement. The industrial strength adhesive epoxy penetrates deep into the pores of the concrete, while saturating the carbon fiber providing a permanent bond to the concrete. Overall, the use of FRP offers a permanent and efficient method for repairing cracks and strengthening structural slabs in parking garage environments, ensuring the safety and longevity of the structure for years to come. 

Post tension slab
damaged post tension cable in reinforced concrete slab

The combination of carbon fiber and post-tensioning works synergistically. The carbon fiber provides additional tensile strength, which helps to control cracking and improve the load-carrying capacity of the slab. The post tensioning compresses the concrete, reducing tensile stresses and enhancing the slab's overall durability and performance. 

Post tension slab
American made carbon fiber strengthening systems for bowing foundation wall repair
Carbon fiber reinforcement for bowed walls. 10X stronger than steel. 25 Year warranty. 100% made in the USA

SRS has you covered with the most advanced rapid cure repair paste available 

SRS 2100 Concrete Repair Paste designed for repairing block walls, cracks, mortar joints. Designed and tested for crack repair, void filling and carbon fiber wall reinforcement

Benefits Of Using an Engineered Carbon Fiber Strengthening System

• High Strength to Weight Ratio

• 196,000 PSI Tensile Strength

• Low Aesthetic Impact (Can be Painted)

• Engineered Approved Design

• Less than 1/8" Thick

• Conforms to Structure

• Non-Corrosive

• Non Invasive

• 4X Safety Factor 

Case Studies

Technical Data

Structural Slab Crack Repair Case Study
SRS-600UNI carbon fiber technical data for bowing wall stabilization, reinforcement, repair and strengthening
SRS-600UNI carbon fiber 25 year transferable warranty

Structural Slab Crack Repair

Case Study 

Why Choose SRS?

A Client Experience You Can Rely On

We are the carbon fiber infrastructure rehabilitation experts. SRS proudly leads the way with American Made carbon fiber strengthening systems that are built around the needs of professionals, designed, and engineered to preserve concrete structural components.

Structural Reinfrocement Solutions products are made in the USA

Our expert in-house engineers and dedicated support team are committed to providing an unparalleled customer experience. With an extensive carbon fiber inventory and same day shipping, SRS has the materials and expertise you can count on.

• Engineered Carbon Fiber Designs

• Same Day Support
• Contractor Training

• Commercial Format Roll Kits


Structural Reinforcement Solutions Carbon Fiber Strengthening Systems for foundation repair and bowed wall strengthening and repair
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