Concrete foundations provide a solid support for any home. However, since nothing lasts forever, you may eventually have to repair your foundations with epoxy. Some of these repairs can require the involvement of professionals, while in other cases, you can perform them yourself. In these cases, here are some tips on what to avoid when repairing your concrete foundations with epoxy using a DIY approach.
For a concrete foundation, stay away from aggregates that are too wet
Aggregates are a collection of inert materials, of mineral or vegetable origin, used in the composition of mortars and concretes. When aggregates are added to the epoxy, special attention must be paid to the moisture content of the material, which must be very low. Choose an aggregate that contains less than 0.2% moisture to make your mortars or grouts for repairing foundation cracks. Avoid using sand stored in piles, as its moisture content could significantly exceed the recommended percentage.
A well mixed epoxy for a solidly repaired foundation
Epoxy is a substance formed from a mixture of molecules containing epoxides. Most epoxides can tolerate out-of-ratio proportions of up to 5%. It is not recommended to exceed 5%, as some mixtures may harden excessively if they are composed of a higher ratio. People who choose to do their own mixing use plastic measuring cups to ensure that the correct proportions are used. Remember to do the same if you want to avoid trouble.
Safety first: put on the right equipment before handling the epoxy
Although epoxy is a safe material, it is still a chemical. To avoid any toxic effects of the product, it is recommended to wear appropriate safety gear. The minimum protective equipment for mixing epoxy includes safety glasses, rubber gloves, long-sleeved clothing and pants. Don’t neglect these protective items even if you are an experienced repairer.
Epoxy and dirty substrates: two enemies that hamper concrete foundation repair
When it comes to construction or renovation work, shortcuts are never recommended. If you need to start corrective work that involves epoxy, take the right steps to ensure that your foundation repair project is properly completed. Be sure to clean the surface that the epoxy will be applied to. Debris, dirt and oil can reduce the epoxy’s bond level. For maximum grip, you can always lightly sand the surface.
Epoxy: an extremely adherent material that should be kept away from moving foundations
Epoxy provides extreme adhesion. On the other hand, it is a very inelastic material. The concrete used to build foundations expands and contracts as a function of temperature variations. To get all the benefits of epoxy, avoid applying it to a moving crack or joint, since the repair could fail.
Foundation Crack Expert Group: a leader in foundation crack repair
Epoxy is an incredible material that has proven its effectiveness and versatility many times over. Like any material, however, there are certain warnings and precautions that must be followed to ensure that the benefits are fully achieved. We hope that these few tips will be useful when you choose to repair your concrete foundation with epoxy.
For more information or to repair your concrete foundations using a professional service, contact Foundation Crack Expert Group. Our specialists will be happy to advise you or support you in your efforts.