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A chemical that can soften cement is muriatic acid. It is a very aggressive acid and can eat concrete on contact.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agoStrong acids, I believe example could be like sulfuric acid, hydrochloric acid or nitric acid. Hope this helps...
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When will a collision lead to a chemical reaction?
When the collision is hard and fast enough. Increasing the kinetic energy will increase the likelihood of hard and fast collisions, which will ultimately increase the rate of the reaction. (This is called collision theory.)
Why do you fill volcano with cement?
they put cement because i very hard the streets are made out of cement and u can brake it and the magma would not come out
What is waterproof cement?
Waterproof cement is cement that is waterproof. It can be applied to a surface without being affected if it was touched by water.
What is sulphur concrete?
Ordinary portland cement based concrete consists of a mixture of aggregates bound together with portland cement. In the presence of water a chemical reaction takes place and the portland cement is hydolysed. At the end of this chemical reaction the cement becomes hard and binds the aggregate particles together.Sulphur concrete is composed of a similar mixture of aggregates, however, and this is the big difference, there is no portland cement involved. Instead the aggregate mixture is bound together by molten sulphur at elevated temperatures. Upon placing, the sulphur concrete is allowed to cool and as it cools the molten sulphur becomes a solid again binding the aggregates together imparting rigidity to the concrete mix.Because sulphur concrete contains no alkaline materials, unlike portland cement mixtures, it is very much more resistant to acid attack and thus finds favour in industry where acid resistant concrete is desirable.
Is a compound irreversible?
That depends on what is being mixed together. Two examples of this are: If you mix sand, gravel, and water it is reversible and you can separate the mixture back to its original three parts. If you mix sand, gravel, water, and cement powder it is not reversible as the water will react with the cement powder creating liquid cement and the sand and gravel will form concrete with the liquid cement. After a few hours the liquid cement in the concrete will set and the concrete mixture will become as hard as rock. It is now no longer possible to separate the mixture back to its original four parts.
How can you weaken concrete?
Not much you can do if the concrete is already hard, but if you are talking about plastic concrete (still in its wet state), there's lots you can do to hurt/weaken it:If you had the wrong chemical admixturesAny addition of water at the job site will weaken the concreteFailture to properly cure the concrete
How fast does an airplane have to be moving to produce a sonic boom on a day when the temperature is 30 degrees Celsius?
maybe it goes fast and it just hits the cement or ground hard.....
How fast does an airplane have to be moving to produce a sonic boom on a day when the temperature is at 30 degrees Celsius?
maybe it goes fast and it just hits the cement or ground hard.....
Why cement can set hard?
Thw AIR set the cement hard I found this out on my text book LOL
What is a good sentence for cement?
the strong apartment building was made of hard cement
When will a collision lead to a chemical reaction?
When the collision is hard and fast enough. Increasing the kinetic energy will increase the likelihood of hard and fast collisions, which will ultimately increase the rate of the reaction. (This is called collision theory.)
Is the setting of concrete a physical or chemical change?
It's a physical change.It's a chemical change. The concrete hardens through a chemical reaction called hydration :)Its a physical change. The Chemical change already happened when the water was added. The concrete powder became hydrated turning it into usable concrete.
What happens if you eat hard cement?
yes it goes extremely hard
Why do you fill volcano with cement?
they put cement because i very hard the streets are made out of cement and u can brake it and the magma would not come out
Does roofing cement dry hard and how long does it take to dry?
how long does roof cement to dry
What can you take to get hard before you see your girlfriend?
Cement
What weakens the nervous system?
The head injury and age are two things that weaken the nervous system. Hard and manual jobs also weaken the nervous system.
