Many road surfaces are not designed to withstand extreme pressures forever. Typically, an asphalt carriageway will need to be replaced after 20 years and a concrete carriageway after 25 years. Repairing a road approaching this age is not considered a wise investment. Over time, if owners do not take care of them, minor damage will lead to more significant problems.
These problems can include widening cracks, crumbling concrete, and that can lead to the need to resurface the concrete driveway, repair it, or complete a replacement. If you want to resurface your concrete driveway, many consider the "middle ground" of caring for your driveway. The first step is to treat minor cracks using the best concrete driveway patch. Or, if there is too much damage and crumbling, you may need to weigh the pros and cons of concrete versus driveway resurfacing.
Are you trying to figure out if you should resurface your concrete driveway or if a replacement should occur? Weighing the pros and cons of concrete resurfacing versus replacement is beneficial because it helps you understand the benefits of each. Before considering any concrete driveway repair or resurfacing, think about its age. If you are working with a concrete driveway that is twenty to twenty-five years old or older, you will benefit from replacement. The main reason is that you are likely dealing with a lot of age patching and previous rejuvenation.
If you want to change the material of your carriageway, then it is a consideration why a replacement is the best option. If you are dealing with deep cracks, potholes and sunken areas that you could address with resurfacing, think about what new material as an alternative. Would you be happier with an asphalt carriageway? Before making this decision, weigh the pros and cons of resurfacing. Think about how long you plan to live in your home - do you want to continue using a concrete driveway because you are happy with that material, or do you think a replacement driveway with asphalt is a better option? Research the longevity of asphalt compared to concrete renewal, as well as the cost of asphalt replacement.
This information will help you determine which is the best long-term option. Ultimately, you will be living with this decision for decades. Therefore, you want to make sure it is the best from an economic and aesthetic point of view. The customer asks you what to do - can you make it look new again without having to dig up and replace the old floor? Or my car park has several prominent cracks - can they be repaired and made to look aesthetically appealing or does the whole car park need to be replaced? There is no doubt that contractors can offer customers more repair options than ever before.
While the composition of concrete has not changed much in the last 20 years, repair products have. Polymers help create a strong bond between new and old concrete, acrylics add strength, and attractive finishes disguise patches and other repairs. Not only can concrete surfaces be filled, levelled, brightened and reinforced without spending the time and money to replace old concrete, but surface treatment can make them look as good as or better than new. Permanent concrete repairs are possible, well, almost permanent.
It is possible to expect a life expectancy of 20 to 30 years from a properly executed repair. In my opinion, that's not too bad. The trick to a durable concrete repair lies in the bonding of the new material to the old. Many people think that the new patching material will magically stick to the old concrete.
It does this by chemically reacting with the water that is added to the mix. This chemical reaction is responsible for transforming the plastic concrete mixture that looks like thick applesauce into solid rock hours later. The more crystals that form, the stronger the bond. This means that it is not advisable to add the minimum amount of Portland cement to the concrete you are mixing for repair.
If we could go back and do an autopsy of the patch, we would probably see a lot of stones from the new mix that are touching the old concrete. A piece of stone aggregate is not going to stick to the old concrete. If you choose not to use cement paint, you can use many of the acrylic bonding agents that are available. These chemicals are not unlike the resins used in paints.
There are bonding agents that are added to the patching compound, and there are bonding agents that are painted onto the old concrete. In fact, you can use both, if you wish. How many people think that hot, dry, windy weather is the best time to repair concrete? Raise your hand now. Remember earlier I said that cement needs water to start the chemical reaction that makes the crystals grow? Cement also needs water to maintain the chemical reaction.
If the patch is outdoors, try to protect it from the sun. You can do this by covering the patch with a piece of plywood or OSB that creates good shade. Every minute that passes, it grows more and more. The only problem is the air temperature.
The hotter it gets and if the sun is hitting the concrete, the faster the crystals will form. To get really good finishing results, enough crystals must form so that the concrete surface is firm but plastic. With any concrete repair, take this lesson to heart and you'll be off to a good start. First find out what has caused the damage, do the necessary preparation to remove unusable concrete and contamination, and then install a repair designed to solve the problem.
The worst thing you can do is make a repair that won't last. Someone once told me that more than 50 percent of concrete repairs fail again within two years. That's not a track record that inspires confidence. Take a look at the cracks.
There is a chance you can get away with a repair if they are only superficial and not very long. This type of damage indicates that the damage is only superficial and has not affected the underlying foundation. This problem requires a similar analysis to that of cracks. Concrete roadways typically last between 25 and 50 years.
This wide range depends on use, climate, level of maintenance and quality of installation. Concrete pavements installed in colder climates will need longer to cure. This temperature consideration also applies to winter in milder climates, and concrete driveway quality professionals take this into account. Since some moisture must be present during the curing process, water could be added to the surface in hot weather to delay the curing time.
This requirement is especially relevant in the summer. An experienced concrete driveway professional will know the appropriate times to add the required amount of water. He or she will not have to worry about trowelling to a level surface, as is the case when pouring a new concrete slab. A competitor that offered 10-year warranties on polyester repairs has gone out of business.
Correct installation is why it is essential to choose a team experienced in the challenges presented by concrete. It is an aspect of concrete driveway installation that is often overlooked, but has far-reaching ramifications if not addressed. Most repair materials today are polymer-modified concrete, meaning that the basic material is a mixture of portland cement and aggregate with a polymer (usually latex) added. In fact, when you drive the rebar into old concrete, it will feel tighter than when you drive a nail into wood.
Owens points out that if the subbase is not a problem, the decision to repair or replace can come down to cost. Concrete stains react chemically with the concrete, or in this case the resurfacing, to permanently change its colour. When you are contemplating the question of how long your polyurethane concrete levelling repair will last, it is helpful to step back and look at the big picture. The length of the crack that will require replacement can best be determined by a concrete driveway professional.
This can be done by rubbing a board across the top of the concrete patch back and forth in a seesaw fashion. The environmental benefits of concrete levelling For thousands of years, the world has been settled on concrete.