The tannins/oils from oak leaves as well as other leaves will stain. I would suggest not worrying about it,those stains are just character, part of nature. but if you insist try some baking soda and hydrogen peroxide mixed scrub with stiff brush let sit on stained area rinse well with lots of water to dilute solution so it doesn't hurt any plants around concretes edge.here are additional ways/tips.....first gauge the severity of the stain (how dark it is, how long it has been on the cement). This will determine the type of treatment you should use.be sure to protect any plants/grass in the immediate area by soaking them heavily before and after any cleaning/treatments.
The mildest solution is to wash the stain with water and dishwashing detergent. Wet the area, scrub in the detergent with a hard brush (not metal), let it stand for a few minutes, then rinse. You can use a scrubbing brush or pressurized water from a hose nozzle for rinsing. Powder dishwasher detergent can add enough appropriate abrasion to remove the stain.
For a moderate treatment replace the dishwashing detergent with bleach. Using the proper dilution instructions for the bleach, mix the bleach and water, scrub it on the stain, allow it to sit a few minutes, and then rinse it. Take care to protect any plants or natural life that you don't want to get bleach on.
For a deep treatment of the stain obtain tri-sodium phosphate (TSP) from a local house ware store. TPS can commonly be found in the painting section of these stores. Wear protective goggles, gloves and clothes. Mix a cup of TSP with a gallon of hot water. Scrub the mixture onto the pre-wetted stain and allow it to sit for 10 to 20 minutes. Rinse the cement and the surrounding area thoroughly with water.
Also, considering the nature of the stain, you can employ an organic stain remover. These stain removers are designed to specifically attack carbon-based material, like the wood and leaf dyes that cause cement staining. Organic stain removers take longer to process and break down the stain and usually need to sit 24 to 48 hours before showing results. Follow the specific directions on your selected brand.
In all cases if your cement has a unique color/dyed/stained you may want to test your chosen cleaning method on an inconspicuous spot, just to check for possible discoloration.
Every time I clean my mirrors, they end up having tons of streaks and almost look worse than before I started. What could I use to clean them that won't leave streaks...
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Power washing or high pressure from garden hose.
Hazel....Great idea....
pressure washers work on so much
The tannins/oils from oak leaves as well as other leaves will stain. I would suggest not worrying about it,those stains are just character, part of nature. but if you insist try some baking soda and hydrogen peroxide mixed scrub with stiff brush let sit on stained area rinse well with lots of water to dilute solution so it doesn't hurt any plants around concretes edge.here are additional ways/tips.....first gauge the severity of the stain (how dark it is, how long it has been on the cement). This will determine the type of treatment you should use.be sure to protect any plants/grass in the immediate area by soaking them heavily before and after any cleaning/treatments.
The mildest solution is to wash the stain with water and dishwashing detergent. Wet the area, scrub in the detergent with a hard brush (not metal), let it stand for a few minutes, then rinse. You can use a scrubbing brush or pressurized water from a hose nozzle for rinsing. Powder dishwasher detergent can add enough appropriate abrasion to remove the stain.
For a moderate treatment replace the dishwashing detergent with bleach. Using the proper dilution instructions for the bleach, mix the bleach and water, scrub it on the stain, allow it to sit a few minutes, and then rinse it. Take care to protect any plants or natural life that you don't want to get bleach on.
For a deep treatment of the stain obtain tri-sodium phosphate (TSP) from a local house ware store. TPS can commonly be found in the painting section of these stores. Wear protective goggles, gloves and clothes. Mix a cup of TSP with a gallon of hot water. Scrub the mixture onto the pre-wetted stain and allow it to sit for 10 to 20 minutes. Rinse the cement and the surrounding area thoroughly with water.
Also, considering the nature of the stain, you can employ an organic stain remover. These stain removers are designed to specifically attack carbon-based material, like the wood and leaf dyes that cause cement staining. Organic stain removers take longer to process and break down the stain and usually need to sit 24 to 48 hours before showing results. Follow the specific directions on your selected brand.
In all cases if your cement has a unique color/dyed/stained you may want to test your chosen cleaning method on an inconspicuous spot, just to check for possible discoloration.
Pool shock liquid 2 part water 1 part pool shock. Water the plants around it first