Can resin driveways crack?
Every month we are getting more and more calling off people to give them a price on installing resin driveways. Now despite reading about all their advantages, what most people want to know is can resin driveways crack. It’s a fair question given that a new driveway is usually a big expense and so you want to make sure that you’re getting a good product. However, yes they can crack (this isn’t as bad as it sounds) and you can notice them but that is not the cause of the problem.
These are the five most typical causes of resin driveway surface cracks
1. Reflective cracking from different adjacent substrates
What is this?
There are many ways to extend the concrete base, such as by using the cellular grid base or the adjoining base. When a fresh concrete slab is placed next to an older concrete slab with a different curing profile, this is referred to as having different substrates. When curing, different substrates will react differently to loads and temperature changes. So the resin bound surface can crack as a result of the tension created by these movements.
How can this be fixed?
In the event of a failure, a new open-grade tarmacadam surface can be installed in its place. Otherwise, an expansion joint trim or a block in the shape of an internal border might be used to distinguish between distinct substrates. For those who want to use other substrates, it is possible to repair the junction using epoxy liquid and/or jointing mesh.
2. Defending against intrusions is known as cracking. Cracking of the re-entrant
What is this?
Re-entrant cracking is the most misunderstood type of cracking in resin driveways. But it occurs far more frequently than you might imagine.
Stress cracks, such as re-entrant cracks, are frequently encountered in bound structures when an intrusion occurs at an acute or right-angle angle. Everything comes down to the laws of physics. Having an acute angle in the structure permits stress forces to be concentrated in a single place. When there is an incursion, such as an MH cover or an internal corner on an edge course, the stress forces will seek for that and develop a crack to release the strain.
How can this be fixed?
A thicker resin can be used to patch small hairline fractures, preventing them from spreading. However, preventing re-entrant cracking is the best technique. We also advocate limiting any incursions into a resin bound area that would alter its shape.
3. Use on surfaces not meant to serve as a base
What is this?
A hard surface, such as tarmacadam or cellular grids, is required for the application of resin bound surfaces. It can be applied on flat and other shaped surfaces so you can even get a resin driveway on a slope. However, not every hard surface can be used. Therefore, it is not recommended to use block paving or crazy paving to support an in situ screed like resin surfacing. Resin is designed to move and camber, although that can and does lead to cracks.
How can this be fixed?
This type of subsoil is likely to fail, and in regions where vehicles are present, we would argue that overlaying it is not a possibility. So it’s up to each individual to decide whether or not to go forward with a resin patio, courtyard, driveway or any other area that is only used a few times a year (and at risk).
4. Expansion joints or preexisting cracks can cause reflective cracking
What is this?
Concrete substrates can be overlaid, but be careful! Overlaying a slab that contains induced joints, or day work joints, is a good idea because these joints are meant to move to keep the concrete from breaking. But when resin-bonded surfacing is used to cover these, the movement of the joint can be seen as a fracture in the surface. Also, cracks can form on the surface if the concrete slab isn’t constructed correctly.
How can this be fixed?
Using a cellular grid basis or a tarmacadam substrate for removal and replacement is our preferred method. However, if it isn’t an option, you still have other options. One of our customers recently completed a project in which they used two techniques to keep their driveway free of cracks in the future. After repairing existing fractures with Epicrete epoxy mortar and sealing the joint with epoxy primer and sealer (Epiprime), they used a fibre reinforcement mesh across the joint to strengthen the epoxy.
The installation of an expansion joint is an option for joints that are too large to be repaired. Or if their movement is required as part of the foundation’s construction.
5. Failure or subsidence of a base and/or its sub-basis
What is this?
Typically, the sub-base is a MOT Type 1 or 3 sub-base. The resin surface is placed on top of the base. One of the other could lead to subsidence, which in turn causes the surface to collapse.
How can this be fixed?
Ideally, a new project should start from scratch! But if that is not possible, care should be given to ensure the base is firm before applying resin bonded surfacing. For more information, contact The Stockport Resin Driveway Company and we’ll be happy to help.
Conclusion
While this surfacing offers many advantages, concerns about can resin driveways crack are valid. Understanding the causes, such as reflective cracking from adjacent substrates and base failure, is crucial. However, proper techniques like using thicker resin and repairing joints can lessen these issues. So by addressing these concerns, homeowners can enjoy all the benefits of resin driveways. This is with with reduced risk of cracking, ensuring long-lasting durability and aesthetic appeal.