| Freeze Thaw Attack |
DynaCreteŽ PIM+ is the ideal preventative solution for freeze thaw damage. |
Fact:This is a natural process whereby moisture seeps into the pores and cracks of concrete, freezes and expands putting stress on the surface. Water expands approximately 9% as liquid changes to ice. When the water changes back to liquid, it releases the stress. Recommendation:DynaCreteŽ PIM+ is the ideal preventative solution for freeze thaw damage. DynaCreteŽ PIM+ causes a chemical reaction in concrete providing a permanent internal seal (see article on the Ultimate Concrete Sealer.), which will prevent the moisture penetration, thereby retarding deterioration, cracking, spalling and overall damage caused from the stress of freeze- thaw conditions. Another important fact to note is that DynaCreteŽ PIM+ will allow the concrete to breathe, yet prevents the penetration of moisture, salt, chlorides, acids, grease, and oil. Related Articles: |
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Spalling, scaling and cracking occur when the concrete cannot withstand the stress of the expansion and contraction associated with freeze/thaw. When salt is added to the equation, the rate of expansion can be increased to as high as 18%. The greater the expansion rate, the greater the potential for freeze/thaw damage. Air Entrained concrete ideally can prevent some freeze thaw damage by creating a network of tiny air pockets, which allow for expansion of freezing moisture. However, air entrained concrete is highly dependent on ideal conditions when pouring the concrete, as well climate. 
