Barefoot Concrete is introducing a range of epoxy resin crack repair systems for concrete restoration.

Epoxy-based grouting is preferred to cement due to the quick setting of the epoxy, very low shrinkage, excellent adhesion, high strength, low viscosity to penetrate even hair cracks and good resistance to most chemicals. However, epoxy grouting is expensive and therefore should be used when cement grouting is not suitable for crack repair for the required functioning of the structure.

Epoxy grouting is done based on the type of crack and the width and depth of the crack in the concrete structure. Grouting of wide cracks requires a large quantity of grout material. Due to the cost fillers may be used to fill the cracks before applying the epoxy grouting system.

Very low viscosity epoxy resin is used for injection grouting of cracks. This is based on the width of the crack, the depth and extent of cracks, the viscosity of the resin hardener mix, their proportions, pot life, and application procedure etc.

The first crack repair system is the epoxy resin sealing mortar. It possesses high hardness, excellent polish, strong adhesion, fast curing, and bonds easily with the substrate such as concrete, stone, steel. It is mainly used for crack sealing and base bonding during the process of repairing concrete cracks.

The epoxy resin sealing mortar is a modified epoxy resin with excellent initial adhesiveness. It works well at low temperature or room temperature with a fast curing speed. It has high adhesive strength after curing, good hardness and toughness. It has good anti-acid characteristics after curing, good performance against moisture, water, oil, dust, humidity and weather ageing. The cured products have good strength for tension, pressure and bonding.

The second crack repair system is an epoxy resin grouting adhesive. It is mainly used for concrete crack grouting, repairing, reinforcement of beams, floors, poles, building basements, bridges and roadways. It is a two-component injection adhesive with modified epoxy resin and can be hardened at room temperature.

It is useful for repairing and reinforcing concrete cracks on outer and inner walls, roofs, beams, poles and floors. It can be used for repairing hollow parts of walls and floors, ceramics and stones. It is good for repairing cracks on concrete buildings, even prefabricated components, equipment, silos, reservoirs, dams, bridges, tunnels, pipes, and concrete pavements.

The epoxy resin for crack injection effectively seals cracks and improves the durability of concrete. It is waterproof, corrosion-resistant, ageing resistant, has low viscosity, fluidity, and can, therefore, be applied to cracks smaller than 0.05mm. After curing it has excellent toughness and impact resistance. It is easy to handle, has minimal maintenance requirements and is of reliable quality.

The third crack repair system is an epoxy resin structural adhesive that is eco-friendly. This product is a specialized adhesive for carbon fibre bonding reinforcement. It has good wettability, is a two-component system, contains no poison, and is widely used in structural reinforcement of beams, floors slabs, bridges, piers, and the seismic reinforcement of all kinds of concrete structures.

This product is a high-performance epoxy resin fibre bonding adhesive and can be used for effectual permeable bonding between concrete, steel, ceramic, stone, wood and other substrates with carbon fibre, glass fibre, basalt fibres, and aramid fibres etc. It is mainly used for building reinforcement.

The epoxy resin structural adhesive has excellent physical properties as it’s tensile strength is more than 10 times higher than that of ordinary steel, its modulus of elasticity is close to steel. It is suitable for reinforcement of Steel bars in concrete structures. It is widely used in bending, shear, compression reinforcement of section unit, and seismic strengthening of structures and masonry reinforcement.

The weight proportion of the product is only 1/4 to steel, the thickness of each layer is less than 1mm, and there is almost no increase in the weight and size of the original structure. There is no need for large construction equipment, and no other fixed facilities are needed as it has a short construction period. It has good corrosion resistance and durability. If you compare this product with steel-adhered reinforcement methods, it has a lower cost, and easier for construction quality assurance.

All three products come in 5, 10 and 15kg systems. Barefoot concrete also provides an Injection Auto Pressure Pump for epoxy crack injection and a high-quality Manual Epoxy Injection Dual Gun. Please contact Barefoot Concrete for a price.