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How to fix discolored concrete (Eco-friendly)
How to fix discolored concrete (Eco-friendly). You may have noticed dark spots or discoloration in your outdoor concrete. This is known as mottled concrete or pinto concrete. Many things can cause this to happen such as the concrete to water ratio, hard troweled surfaces, improper/inadequate curing, maybe even calcium chloride additives. There is a...
You may have noticed dark spots or discoloration in your outdoor concrete. This is known as mottled concrete or pinto concrete. Many things can cause this to happen such as the concrete to water ratio, hard troweled surfaces, improper/inadequate curing, maybe even calcium chloride additives. There is a simple, eco-friendly solution.
Things You'll Need
White vinegar
Garden hose
Outdoor Broom
Prepare the surface of the discolored areas by hosing off the area, while scrubbing with your outdoor broom.
Pour the vinegar directly on the discolored area. Do this in the morning and let it sit for approximately 30 minutes. Rinse thoroughly with your hose. Re-apply the vinegar as needed.
The vinegar and the heat open the pores of the concrete, allowing any trapped moisture to escape and giving you access to the deeper parts of the stain.
Before the day begins to cool, scrub the area with your outdoor broom then hose it off. The stain should be gone, it may even have faded while the vinegar was sitting.
Tips & Warnings
Do this during the summer
For best results, do this in direct sunlight
Tougher stains or deeper discolorations may require this to be done more than once.
