Concrete Structure Services
Concrete is a composite material made up of three basic components being water, cement and aggregate in the form of sand, rock, stone or gravel. Due to many uncontrollable factors such as harsh environmental conditions, design constraints, poor construction practices and material limitations, deterioration known as concrete cancer can occur over time.
This is due to moisture entering the pores of the concrete, creating rust of internal steel reinforcement. This results in many structural, functional, and aesthetic problems as well as impacting on the integrity of surrounding infrastructure.
Signs and symptoms of concrete that have been implicated include, but is not limited to:
- Deep widespread cracks due to settlement and movement from the earth
- Spalling because of rust to steel reinforcement -Sunken slabs due to poor preparation
- Scaling due to frost or freezing conditions at the time of laying or thereafter
- Deterioration due to chemical attacks
- Abrasion/Erosion
- Thermal cracking because of expansion and contraction
Concrete demolition utilizing the high-pressure water jetting lance and Robotic demolition. High pressure water jetting is significantly more accurate than traditional techniques, especially hydraulic power tools as there are no vibrations, meaning no detrimental effects such as cracking in the surrounding areas of the structure.
Water jets are much easier to target with very little impact on surrounding materials. The process leaves behind a quality bonding surface which is ready to receive new coatings or applications.
Reinstating concrete structure like for like or as prescribed in engineering drawings. Concrete cancer can be treated in all structures. In order to effect repairs, the spalled concrete must be removed, and any exposed steel must either be replaced or cleaned and treated. The area is then repaired to the original concrete profile using cement mortar, epoxy mortar or concrete, depending on the size of the damage and the structural requirements. Cracks are repaired using suitable epoxy resins, special mortars, and injection techniques.
We undertake surface preparation using high pressure water blasting, abrasive grit blasting or a combination of both. Protective coatings can then be applied which are designed to suit specific conditions and requirements for adhesion, bonding, maintenance, and wear.
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