The bubbles in concrete above 100μm are called large harmful bubbles, 100 ~ 50μm are called harmful bubbles, 50 ~ 20μm are called low harmful bubbles or harmless bubbles, and those below 20μm are called beneficial bubbles.…
Thermal insulation materials refer to materials or material composites that have significant resistance to heat flow.…
Foam concrete natural maintenance can be divided into two types: cover-up sprinkler maintenance and plastic film maintenance.…
Lightweight foamed concrete, also known as foamed cement, is a lightweight porous concrete product made from foaming agent aqueous solution into foam, and then adding foam to the slurry made of cement-based cementitious materials, aggregates, admixtu…
Foam concrete is an excellent electromagnetic shielding material, which can absorb and eliminate electromagnetic waves.…
The open-cell foam concrete is an excellent sound absorption material, while the closed-cell foam concrete is an excellent sound insulation material.…
Foam concrete contains a large number of closed pores, the air in the pores is a good adiabatic medium, which can cut off the heat exchange.…
Before construction, ensure that all kinds of instruments used during construction can operate normally, check their status and break the work, and the materials must be in place.…
The phenomenon of aggregate sinking and water floating will occur in the process of transportation, vibration and pumping of concrete.…
This article will introduce the use of various concrete additives, like the amount that should be added.…
The substance that can delay the setting and hardening time of refractory castable is called retarder.…
Concrete additive is a substance added in the process of mixing concrete to improve the performance of concrete, the amount of which is not more than 5% of the quality of cement (except in special cases).…