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2. Stone sealer - Wikipedia

   en.wikipedia.org/wiki/Stone_sealer

   Efflorescence is usually the result of mineral solutions in the capillary channels being drawn to the surface. If the water evaporates, the minerals remain as the so-called efflorescence. It also can be the result of chemical reaction; if badly prepared cement-based mortar is applied to maintain the stone in position, free calcium hydroxide may ...

3. Efflorescence - Wikipedia

   en.wikipedia.org/wiki/Efflorescence

   Secondary efflorescence on the dam of the Robert Moses Niagara Power Plant. In chemistry, efflorescence (which roughly means "the flowering" in French) is the migration of a salt to the surface of a porous material, where it forms a coating. The essential process involves the dissolving of an internally held salt in water or occasionally, in ...

4. Concrete degradation - Wikipedia

   en.wikipedia.org/wiki/Concrete_degradation

   Example of secondary efflorescence in parking garage exposed to diluted road salt from vehicles entering the garage during winter. When water flows through cracks present in concrete, water may dissolve various minerals present in the hardened cement paste or in the aggregates, if the solution is unsaturated with respect to them.

5. Grout - Wikipedia

   en.wikipedia.org/wiki/Grout

   Grout sealer is a water-based or solvent-based sealant applied over dried grout that resists water, oil, and acid-based contaminants. Grout cleaner is a basic cleaning solution that is applied on grout lines and removes the dirt and dust. [9] A die grinder is used for faster removal of old grout compared to a standard grout saw.

6. Scientists Find This Type of Exercise Cuts Heart Disease Risk ...

   www.aol.com/scientists-type-exercise-cuts-heart...

   The bottom line. This study shows that even small amounts of higher-intensity exercise, just a few minutes at a time, can potentially provide a significant benefit to heart health, says Dr. Chen ...

7. Man walks naked for 25 miles from Oregon border into ... - AOL

   www.aol.com/news/man-walks-naked-25-miles...

   A man is lucky to be alive after walking naked for 25 miles in rain and near freezing temperatures from the Oregon border to near the Tri-Cities, say officials.