What is the melting point of concrete and or cement?

Question

What is the melting point of concrete and or cement?

Answer 1

The concrete does not have point melting. When the temperature is high (more than 1000°C) the concrete one crumbles like the sugar. Their components have different behavior. Stone and sand melts to 2600°C, the steel melt to 2500°. The same happens to the components of the cement.

Good luck.

Answer 2

It really depends on the components of concrete/cement.

Here's just an example.

Residual strength of hybrid-fiber-reinforced high-strength concrete after exposure to high temperatures:

Residual strengths of high-strength concrete (HSC) and hybrid-fiber-reinforced high-strength concrete (HFRHSC) after exposure to high temperatures were investigated.

The results showed that normal HSC is prone to spalling after exposure to high temperatures, and its first spalling occurs when the temperature approaches 400 °C.

For HSC reinforced by high melting point fibers, the first spalling occurs when the temperature reaches to approximately 800 °C, while there is no spalling during exposing to high temperatures for HSC reinforced by polypropylene (PP) fiber with a low melting point.

Mixing high melting point fiber (i.e., carbon or steel fiber) with low melting point fiber (i.e., PP fiber) HSC greatly improves the properties of HSC after exposure to high temperatures.