Concrete is a strong and durable material, but it is not immune to cracking. To ensure that your concrete projects are strong and long-lasting, it is important to take the necessary steps to prevent cracking. Moisture is key to preventing cracks in concrete, so it is important to spray the project with water several times a day for the first week after pouring. Additionally, if there are unexpected temperature drops, cover the concrete with a thermal or insulating blanket or a thick polyethylene sheet.
It is also important to avoid adding excess water to the mix when laying concrete, as this can increase the likelihood of cracking. Furthermore, reinforcing the concrete with control joints can help prevent structural weakness and cracking. Finally, it is important to find a reliable contractor to install the concrete in a way that prevents cracks. When cracks do occur, it is important to identify the cause and significance of the cracking.
In most cases, small and fine cracks (less than 0.3 mm wide) are considered acceptable as part of a minor settlement based on the purpose and intention of the concrete structure. To repair cracks, targeted injection of the appropriate material adapted to the diagnosis of the individual crack can be used, followed by a suitable concrete protective coating. Overall, there are several steps you can take to prevent cracking in your concrete projects. Moisture is key, so make sure you spray your project with water several times a day for the first week after pouring.
Additionally, cover the concrete if there are unexpected temperature drops and avoid adding excess water to the mix when laying concrete. Reinforcing with control joints can also help prevent structural weakness and cracking. Finally, find a reliable contractor to install the concrete in a way that prevents cracks.