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Joint Sealing

Joint sealing is the act of placing joint sealants into the join systems between concrete slabs. Joint sealing is used to minimise the entrance of various substances into the joint system to prevent damage to the joints. Read below to find out the importance of joint sealing:

What Is It?

A sealant is a soft element that is placed within the joint system. The softness of the sealant is useful as it accommodates the expansion and contraction of the concrete slabs in hot and cold weather. Joint sealing also used to enhance the appearance of the concrete slabs as the sealants make the edge of the concrete look neat. There are many options to choose from for joint sealing. Three of the most common joint sealants are liquid sealants, impregnated foam sealants and hybrid sealants. Liquid sealants, such as silicone are inexpensive and easy to apply. Impregnated foam sealants are provided in the finished state, ready for installation. hybrid sealants are a combination of silicone and impregnated sealants.

Why Is It Important?

Joint sealing is important as it will increase the protection of the slab’s structure by reducing the risk of substances such as water, chemicals, ice and dirt from lying in the joint system. If these substances are allowed into the joint system, they can increase the risk of joint failure and corrosion. Heavy equipment that places pressure on the concrete slabs can cause chips or cracks on the edges of the concrete that will raise the chance of joint failure. Joint sealing can help with this problem by minimising the chance of chipping edges of the concrete.

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