Bleach. If your concrete is dull and sprouting weeds or mold, bleach is your best option for cleaning and brightening concrete. Mix a cup of bleach into a 5-gallon bucket of warm water, then spray or pour over concrete. Rinse thoroughly with water.
Cleaning dirty concrete is fairly easy using a detergent or degreaser. You can use something simple like Dawn dish soap to various degreasers you can find at Lowes or Home Depot. Zep Purple works well on concrete. Eventually you'll need to find the chemical distributors in your town and see what's available.
Vinegar is an acidic cleaner that can etch concrete if used undiluted or left on for too long. However, when used appropriately, diluted vinegar can effectively clean concrete driveways, removing stains and grime while being a cost-effective and natural cleaning solution.
Use a detergent such as Dawn or Ajax dishwashing liquid mixed with water to brighten a concrete patio that hasn't been cleaned in a while. Just as you would regularly vacuum the floor and dust your furniture inside your house, you should keep your patio clean so it's ready at a moment's notice to entertain.
Sweep off or vacuum up any loose dirt, dust, and debris from the concrete surface. Using a garden hose, wet the concrete. Then, apply a mixture of trisodium phosphate and water, scrubbing the solution onto the surface using a stiff-bristled broom. You can also use a pressure washer for this step.
Cleaning concrete with muriatic acid can be a highly effective solution if used correctly, providing ultra-bright white concrete and removal of many types of stains. In one application, you can remove rust stains, oil stains, algae, and paint splatter with a quick chemical application followed by pressure washing.
The best driveway cleaner for oil stains is an absorbent material such as baking soda or cat litter to soak up the oil, followed by scrubbing a white vinegar or liquid detergent cleaning solution into the surface. Rinse the area with a pressure washer or garden hose with a spray nozzle.
Use Dish Soap and Water
Ordinary household dish soap as a degreaser is extremely useful for cleaning up oily, grimy concrete stains while avoiding the use of harmful chemicals. Start with two gallons of warm water and a mere two teaspoons of dish soap in a standard bucket.
Household vinegar is excellent for cleaning with many uses around the home and can be used on patios for dirt and stains that are hard to shift. Use white vinegar rather than malt vinegar, which has a strong smell.
Applying the Pretreatment
While wearing protective gear, such as gloves and goggles, mix a cleaning solution typically consisting of water, bleach, and mild soap in a ratio that ensures effective cleansing without damaging the concrete.
WD-40 can do more than eliminate unpleasant door squeaks – it may also help remove oil stains in your driveway, according to Reader's Digest. That's because it has ingredients that can penetrate grease. Spray a liberal amount on the area and let it sit for 20 minutes, adds Organic Lesson, then wipe the area clean.
Vinegar is better for the environment and the preferred choice for cleaning concrete as it is cheap and effective. Wash bays are experts in keeping their concrete clean.
Simply fill a spray bottle with equal parts water and vinegar (or water and baking soda), and add a little bit of liquid dish detergent. Spray the mixture on your concrete surface and let it sit for about 30 minutes. Then scrub and rinse your concrete.
While bleach will not harm concrete, it might eat away at a concrete sealer or coating, especially if the bleach solution is not rinsed off well after application. Bleach is highly corrosive and can be a serious environmental and health hazard when used incorrectly (see Precautions to Take When Using Bleach).
30 Seconds Ready To Use Outdoor Cleaner is made from a combination of ingredients, with the active ingredient being Sodium Hypochlorite. What happens when you apply the product is that it works immediately on any organics by emulsifying the growth.
Vinegar or baking soda: These natural cleaners work well to clean cement patios with stubborn charcoal or rust spots. Mix equal parts vinegar and water, scrub the patio with the mixture, then give it a good rinse. If stains don't dissolve, try undiluted vinegar.
A gentle dish soap like Dawn is best for cleaning stone patios, walkways and driveways. If you're in doubt, test a small, inconspicuous area with the cleaning solution before you apply it to the entire paver area.
Bio-Shield® is Proven Effective
Bio-Shield will give a powerful, rapid kill of moss, fungal, algal and lichen growths, and can prevent re-growths. It can be used to clean any exterior surface.
Mix 1 gallon of water with 1 cup of white vinegar. Add 1 tablespoon of dish soap to help the solution cling to vertical surfaces and improve its grease-cutting power. For tougher stains, add ½ cup of baking soda to the mixture for extra scrubbing power.
Pressure washing is one of the fastest, most effective ways to get your concrete white again. Concrete can change color over time due to pollen, algae, or dirt buildup, but a good pressure wash can easily remove dirt and stains and make your concrete look new again.
The effect of soaps added in small amounts as integral waterproofing to cement mortar and concrete is .to diminish the absorption of water by capillary action to a marked extent arid to lessen the permeability to water under pressure.
All you need to do is pour a generous amount of dawn over the oil and use a large bristle brush to scrub the stain until you can see that it is pulling away from the ground. Rinse and repeat until the oil disappears. This might just be the cheapest solution you'll find!
Liquid peroxide formulas clean and brighten grout lines without harsh acids and chlorine bleaches that can damage the grout and surrounding flooring materials. The Liquid peroxide cleans, refreshes, and brightens concrete, tile, and grout without leaving watermarks or residue in contrast to other cleaning chemicals.
For most oil stain removal, we use Prosoco Oil and Grease Remover. It's a poultice explicitly designed for decorative surfaces, and from our experience has minimal impact on the areas around the stain. Further, it will remove stains set deep into a concrete slab, reducing the chance they reappear.