What is the melting point of concrete?

Answer 1

Not everything that is solid at room temperature and normal atmospheric pressure will melt by simply raising the temperature - some things convert directly to gas (sublimate)and some things will decompose or react to other substances before melting (burning is one type of reaction), to answer part of the question. But eventually whatever solids are left after the reactions will melt.

Concrete should devolatilize (lose CO2 and water) before melting, I believe, at least in part (rate of heating can be a factor). I assume you mean at atmospheric pressure and in a system open to air, of course, because that matters. The melting will start with the material that has the lowest temperature melting point unless you allow the system to take a long time and react into other solids first, of course.

A ballpark guess of 800-1000°C for melting is what I would assume, for various reasons. look up calcination of calcium carbonate to get an idea of the issues involved.

Sorry...This kinda isn't really mine...Just wanted to Help :]

Answer 2

what is the melting point of sand