What Is Concrete Remediation?

Concrete is one of the most durable construction materials on earth, but it can be damaged by a multitude of factors. Concrete remediation focuses on fixing these issues and keeping structures structurally sound.

Remediation of concrete involves addressing problems like cracks, waterproofing and spalling. By correcting these problems promptly, further damage can be prevented.

Crack Injection

Concrete is strong, durable and a mainstay in construction, but it can crack for a variety of reasons. These can range from extreme high or low temperatures to shifting foundations and concrete shrinkage. Cracks can be structural or non-structural, and some will grow while others become dormant. A trained professional will assess the type of crack and recommend the best repair method.

Before crack injection, the affected surface must be cleaned thoroughly to remove any unsound concrete and dust particles. Plastic injection ports are then inserted into the crack at a distance equal to or greater than the measured depth of the crack. A crack-sealing epoxy is then applied to the surface of the crack and around the injection ports.

Once the epoxy has cured, the crack is filled with polyurethane concrete resin. This repairs the crack and prevents moisture from entering the concrete, protecting the embedded reinforcing steel and preventing further damage to the structure.

Waterproofing

Concrete remediation involves not only repairing structural damage, but also protecting the integrity of concrete surfaces. The best way to do this is with waterproofing. This process can prevent future damage and help your concrete last longer. Waterproofing can be used on a wide range of materials, including concrete, masonry, and asphalt. There are several different types of waterproofing, including epoxy coatings and vinyl membranes.

One of the most common causes of damage to concrete is corrosion. This can happen from chemicals that leak into the concrete, or it could be caused by a chemical reaction inside the structure. This can lead to anything from hairline cracks that are aesthetically displeasing, to collapse and structural damage.

Another common cause of damage to concrete is fire. During extreme heat, the trapped air in concrete and other masonry products becomes superheated. It then expands and explodes, as seen in the Great Fire of London.

Spalling Repair

Spalling can affect concrete structures such as driveways, sidewalks, and patios. It can damage a structure and increase maintenance costs if left untreated. Fortunately, it’s easy to repair spalling concrete. First, identify the cause of the spalling. For example, exposed rebar is more susceptible to corrosion, so it’s important to use corrosion-resistant materials and apply protective coatings to prevent spalling from occurring. Other causes include improper concrete mix proportions and curing, which can lead to weak and brittle concrete.

Spalling can be repaired with surface patching or overlays. Surface patching is suitable for minor spalling that affects the outer layer of the concrete. The damaged area is cleaned and a patching material that matches the concrete type is applied. This is then trowel-finished for a smooth, uniform appearance. A bonding agent can be applied if recommended by the manufacturer to enhance adhesion. Adequate curing is then required to ensure long-lasting results. For more extensive spalling, replacement may be necessary.

Corrosion Repair

Concrete is one of the most enduring construction materials on earth, but that permanency does not mean that it is unbreakable. Unless properly designed and constructed, reinforced concrete structures can suffer from corrosion damage that threatens the structural integrity of the structure. This problem is known as concrete cancer and it can have devastating effects on buildings and other infrastructure.

Corrosion is caused by the exposure of steel reinforcing to water and chlorides, which deteriorate the passive protective film of calcium carbonate. It is also accelerated by carbonation, where the carbon dioxide in the air reacts with materials within the concrete to form carbonic acid.

The best approach to corrosion repair is to use a corrosion inhibitor admixture that is compatible with the concrete structure. Inhibitors can be supplied as a liquid or powdered product, and they are used to prepare the substrate and protect the exposed steel. A high-build shrinkage compensated repair mortar is then reinstated to the affected areas.



from Origin Concrete Newcastle https://ift.tt/2FmSx8Y
via IFTTT

Comments

Post a Comment

Popular posts from this blog

The Ultimate Guide to Concreting: Everything You Need to Know

Image
Expert Concreting Techniques For Your Concrete Projects Are you ready to become a concreting pro? Imagine standing before a blank canvas, armed with a trowel and a concrete bucket. You can transform this lifeless material into something solid and beautiful, like an artist with a paintbrush. But where do you start? That’s where this guide comes in. This guide is your one-stop resource for mastering the art of concreting. From understanding different types of concrete to learning the best techniques for pouring and finishing, Concreting Newcastle got you covered. So grab your tools and get ready to unleash your inner concrete Picasso. Let’s dive in! Types of Concrete and Their Uses: A Comprehensive Overview When considering concreting projects , it’s essential to understand the different types of concrete and their respective uses. One type of concrete that’s commonly used is reinforced concrete, which is known for its strength and durability. It’s often used in construction pro...
Read more

DIY Vs. Professional: What You Need to Know for Your Concrete Slab Project

Image
Expert guide on Weighing the Pros and Cons of DIY and Professional Slab Project Installation As you ponder whether to tackle your concrete slab project yourself or hire a professional, the decision looms large. In this exploration, you’ll navigate the realm of DIY enthusiasts and seasoned experts to uncover crucial insights guiding your choice. Understanding the nuances of concrete preparation, pouring, and finishing will be pivotal for your project’s success. By weighing the advantages and disadvantages of each path, you’ll gain a clearer perspective on the challenges and rewards that lie ahead. Get ready to delve into the decision-making world and embark on your concrete journey with Origin Concrete Newcastle. DIY Concrete Slab Projects: Pros and Cons of Taking Matters into Your Own Hands When considering a DIY concrete slab project, weigh the benefits and drawbacks carefully. Material selection plays a crucial role in the success of your project. Compare techniques for pourin...
Read more

How to Find a Concrete Contractor Near Me

A concrete slab forms the foundation for many important home features, including driveways and patios. It is also used as a base for air conditioning and heating ducts, sheds, and garages. A concrete slab can be expensive to install, but it offers long-term durability and strength. The price of a concrete slab depends on its size, thickness, and built-in reinforcements. It also depends on the type of finish. Cost Concrete slabs are typically sold on a per-square-foot basis. This makes them easy to budget for. In addition to the concrete cost , you should also factor in site preparation costs, including gravel or sand as a subbase and tamping. Also consider other miscellaneous costs, such as lumber for form stakes. The cost of a concrete slab depends on its thickness and whether it will be used for residential or commercial applications. Large or thick slabs need to be reinforced, and this adds to the cost. For residential applications, wire mesh is usually sufficient; however, fo...
Read more