29 Aug Anti-Carbonation Coatings For Concrete
Test by Harvard University have proven “…The interaction of particulate matter and aerosol compounds with construction materials in urban areas causes rapid decay…”
Why is concrete surface protection important?
Concrete – An ever-present construction material – is exposed to various environmental stresses that can lead to its deterioration over time. One of the culprits is carbonation.
Commonly Affected Areas: Coastal regions and high-traffic environments, including highways, tunnels, and car parks, are particularly prone to carbonation.
The process of carbonation is natural and cannot be avoided when concrete is exposed to the environment.
Concrete has a high pH level which creates a protective layer on the surface of the embedded reinforcing steel rods, preventing or minimising corrosion. However, unprotected concrete will over time be affected by the environmental stresses it is exposed to.
Moisture, microbes, and chemicals like carbon dioxide enter the pores of the concrete and react, causing a loss of alkalinity and eventually leading to corrosion of the steel reinforcement.
This rust buildup causes tensile stresses and puts pressure on the concrete, resulting in cracks near the steel. Over time, these cracks will become more extensive, leading to spalling of concrete, and exposing the corroded steel rods., which can compromise the structural integrity of the concrete.
Three conditions must exist for reinforcing steel to corrode:
- The passivation of the steel must have been destroyed by chlorides or by carbonation.
- The presence of moisture as an electrolyte.
- The presence of oxygen.
The Role of Anti-Carbonation Coatings:
To enhance the longevity of concrete structures, preventative measures are crucial. While optimal protection ideally begins during design and construction, there are a great number of formidable solutions available for existing concrete and masonry structures. Among these, high-quality anti-carbonation coating systems stand out. These coatings provide a barrier against carbonation, weathering, corrosion, abrasion, chemical attacks, and biological growth, extending the life of the concrete.
- Cost-Efficiency: By preventing carbonation-induced deterioration, your maintenance expenses are substantially lowered, enabling you to allocate resources more effectively, perhaps towards growth opportunities. It significantly reduces maintenance expenses compared to conducting concrete repairs after damage occurs. The upfront cost of installing these coatings is a fraction of the expense involved in extensive repairs to the same square meter. Secondly, the decreased need for repairs results in lower resource consumption, aligning with environmentally-conscious practices and appealing to stakeholders who prioritise sustainability.
- Environmental Stewardship: With the reduction in extensive repair requirements, the consumption of resources is lowered, translating into a greener and more sustainable operation that resonates positively with environmentally conscious consumers and stakeholders.
Case Example: Anti-Carbonation Coating for Shopping Centre Car Park Walls
Elevating Infrastructure Longevity: A shopping centre’s car park serves as the gateway to retail experiences. However, this high-traffic area is vulnerable to the impact of carbonation and concrete deteriorating exposure, as well as water ingress through the pile wall joints. Our leak sealing and concrete repair specialists sealed the water ingress by injecting a high-quality resin into the joints and created a durable 3D waterproof, flexible seal within the concrete piles, effectively stopping any water intrusion in the treated areas. The engineer specified an anti-carbonation coating system that forms an effective defence shield on other concrete walls, ensuring the prolonged lifespan of the car park concrete wall structure.
A real-world example illustrates the installation of anti-carbonation protective coatings.
To help existing concrete resist the effect of carbonation, weathering, corrosion, abrasion, chemical attack, fungal and algae growth, a high-quality protective anti-carbonation coating system may be just what you are looking for.
We can assist with selecting and installing a wide range of concrete and masonry coatings, penetrating water repellents, hardener densifiers, trafficable coatings, anti-slip safety coatings, chemical floor bunding, waterproofing systems for external and/or internal applications.
Contact us today to schedule a remedial consultation with our experienced professionals. We will analyse your specific situation, provide expert guidance, and tailor our remedial solutions to your specific needs.
Environmental stresses on concrete in coastal areas: https://waterstopsolutions.com.au/concrete-cancer-repair-in-multilevel-underground-car-park-goldcoast-brisbane-sydney/
If you have any issues with damaged concrete floor joints, cracking concrete slabs, structural cracks, concrete deterioration, moisture, seepage, efflorescence, rising damp and/or high-flow active leaks in concrete structures, we would be happy to assist you. You are welcome to contact us with any questions that you may have.
Brisbane office: (07) 3205 1899
Email: [email protected]
Sydney office: 02 9346 8308
Email: [email protected]
Are you interested in finding out more about the various remedial building services we are providing?
Please click on the image below to download Waterstop Solutions Capability Statement
Waterstop Solutions Capability Statement is now available to download as PDF. (The image is clickable and opens up a link to our Capability Statement).
Good maintenance begins with a proactive approach to maintain, keep, preserve and protect a building.
Remember that seepage/water ingress into areas such as balconies, basements, concrete roofs, car parks and retaining walls, should not be ignored – call a remedial waterproofing professional today for an assessment to provide you with the best solution for your situation.
At Waterstop Solutions, we carry out a wide range of remedial works to concrete structures post-construction stage in Brisbane, Gold Coast, Sunshine Coast, Sydney and outlying areas in Queensland and New South Wales.
Equipped with major civil works experience, we can quickly determine the best approach to rectify all seepage and concrete deterioration issues.