Use Croc Crete to Remove Hardened Cement This is the best method of removing hardened concrete from a drainage system. Croc Crete is a cement softener that attacks concrete at its core. It transforms cement back to its liquid form, allowing you to work it through the drain.
Pour hydrochloric acid (sometimes also known as muriatic acid) into the clogged drain and leaving it for between two and three hours. After this time, flush the pipe with about four gallons of water and loosen any remaining blockages with a plunger; this should be enough to clear the problem.
The inorganic compounds which are useful as concrete dissolvers generally include inorganic acids such as hydrochloric, phosphoric, hypochlorous and carbonic acid. Salts of these acids and alkalies such as sodium-hydroxide, sodium bicarbonate and ammoniumsulfate are also eifective.
The use of a drill makes it easy to flush away hardened concrete. In certain cases, a jet blaster may be required to eliminate bigger chunks of concrete. You'll need an auger long enough to reach the obstruction, however. Even though acid can break down concrete, it is dangerous to do this without the right training.
Easily remove concrete from your tools and equipment with Mean Klean 22 oz. Concrete & Mortar Dissolver. The advanced liquid formula dissolves and physically breaks down concrete by attacking the Portland cement, eventually reducing it to mush that is easy to clean off with a hose or pressure sprayer.
Concrete demolition and rock breaking has never been easier with Dexpan Expansive Demolition Grout. Dexpan is a powder with amazing 18,000 psi expansive strength when mixed with water. Poured into drilled holes, Dexpan can break concrete and rocks safely and quietly, while providing silent cracking.
Use Croc Crete to Remove Hardened Cement
This is the best method of removing hardened concrete from a drainage system. Croc Crete is a cement softener that attacks concrete at its core. It transforms cement back to its liquid form, allowing you to work it through the drain.
While it corrodes almost anything it touches, this is not true of concrete. The acid works well on concrete and on many masonry projects because it neutralizes alkalinity. The surface becomes “etched” and clean, which allows for the proper adhesion of a new coating.
2️⃣ Begin by pouring boiling water down the drain. This can help soften the cement and make it easier to dissolve. 3️⃣ After the boiling water, try using a commercially available cement dissolver. These products are specifically designed to break down cement and can be found at construction supply stores.
Fill a spray bottle using half of the pure white vinegar and top it off with lukewarm water. Shake the contents of your spray bottle for at least 5 minutes in order to thoroughly mix the water and vinegar. Vinegar's acidity helps in dissolving your cement stains, which makes it easier to remove.
PRODUCT DESCRIPTION SAKRETE® Concrete Mortar Dissolver is a safe, environmentally-friendly liquid that is specifically formulated to dissolve cured concrete, mortar, grout, and stucco build-up from tools, concrete forms, job mixers, hardware, shoring and more.
How Do You Break Hard Concrete? Breaking hard concrete is easier if you undermine its external support, so dig out underneath it if possible, or use a pry bar to lift it a little at a time, so it's weaker when hit with a sledgehammer or other tool.
Treatment methods. There are a few methods you can use to clear concrete from your drains. Drain jetting, using a powerful jet of water aimed at the concrete, can help reduce small-scale and larger build ups.
Rid-X is an organic ingredient maintenance procedure that will digest organics built up in the pipes and has absolutely no ill effects to the system. Muriatic acid may not hurt PVC or other drain lines, but it is much too aggressive for monthly maintenance and it is potentially dangerous to use if not careful.
For PVC glue that has started to set, you'll need to use acetone on a clean cloth to wipe it away.
SAKRETE Concrete Mortar Dissolver is a safe, environmentally-friendly liquid alternative to aggressive acid concrete removers. Concrete Mortar Dissolver can be used to remove dried on cement, concrete, mortar or stucco from most surfaces.
The best method is to use a cement softener like Croc Crete. Apply it to the affected area for 12-24 hours. Croc Crete breaks concrete down to its liquid form and transforms it into sludge. Then a professional will reevaluate the drainage system to determine the best way to remove the sludge.
You should note that while vinegar is good at drawing a stain up and out of the concrete, it will damage the concrete if left on it for too long. It's best to keep the vinegar on for no longer than 15 minutes. This should create the desired cleaning effect without damaging your concrete.
The Santeen Sulfuric Acid Drain Opener proved to be the most potent among all the chemical drain cleaners we tested, effectively dissolving 80% of the hair, 80% of the organic matter, 40% of the grease and 76% of the paper products.
hydrochloric acid will dissolve cement – used for cleaning bricks. it will also react with aluminium – so you'd certainly want to test first!
Dexpan can crack, cut or break concrete easily and safely. 3 simple steps to use: drill, mix and pour. Although Dexpan Expansive Demolition Agent is not recommended for shallow application less than 6 inches in depth, but there are many successful projects.
Harsh mineral acids, such as hydrochloric acid (also known as muriatic acid in a diluted state), are very effective at removing the buildup, but will also remove the seasoning and are even capable of dissolving the aluminum.
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).
Required tools for breaking up concrete slabs:
Pry bar. Jackhammer or sledgehammer. Polythene sheet.