Protecting Concrete From Freeze Thaw

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Protecting concrete from freeze thaw.

Salt water and other chemicals get into the pores and break down concrete. Siloxa tek 8500 or siloxa tek 8505 are the best sealers to use to prevent freeze thaw damage and prevent the incursion of water into the concrete. Protect concrete from freeze thaw damage. The important parameters include the air content and the spacing factor.

Ranging from one day for high early strength concrete that is not exposed to freeze thaw events during service to 20 days or more for a concrete element that would carry large loads at an early age. Permanently protect concrete from freeze thaw damage by using creto deep penetrating sealer dps. Modify the mix design so the concrete will gain the necessary strength before freezing or. For more information see concrete basics on page 945 of this issue or the article cold weather finishing in the november 1993 issue of concrete construction.

Concrete facts in regions where freeze thaw cycles can be severe such as here in the northeast concrete surfaces may show flaking and chipping damage known as spalling or scaling where the thin top layer pops off the concrete revealing the underlying aggregate material. The consequences of freeze thaw damage can be particularly devastating to the appearance of stamped concrete including ugly scaling or flaking of the surface popouts and cracking. Concrete is one of the most durable building materials known to man but it can be vulnerable to deterioration from weather salts and the freeze thaw cycle. That equates to a minimum of 80 freeze thaw cycles annually.

Concrete mixes can be designed to resist this damage. When ice melts it carries approximately 10 more water than normal. Protect the concrete from freezing by external means i e blankets enclosures or heaters. Concrete damage can be ugly and costly.

In structures that will carry large loads at an early age concrete must be. Entrained air bubbles are the only way to properly protect concrete from damage by freeze thaw. Protect from freeze thaw damage. A quality air entrainment system consists of a well dispersed microscopic porosity system.

Salt also lowers the freezing point of water and increases the pressure of frozen water thereby intensifying the effect of the freeze thaw cycle. The only way to prevent freeze thaw damage is to treat your concrete with a quality concrete sealer. Protection while the concrete is placed consolidated and finished. Positive or negative side application.

As penetrating sealers these products will seep deep into the concrete to structurally bond to. After spending thousands maybe hundreds of thousands on.