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.…
As a lightweight thermal insulation material, foamed concrete has been widely used in construction projects. Some problems have also occurred during its application. When applied to thermal insulation components, due to the excessive water absorption…
This article will introduce the use of various concrete additives, like the amount that should be added.…
In this article, defoamer, anti-shrinkage agent, preservation agent, and inhibitor will be talked about.…
This article will talk about coagulant, retarder, delayed coagulant, foaming agent, air entraining agent, and aerating agent.…
The properties and varieties of concrete additives for refractories, especially refractory castables, ramming materials, plastics and other amorphous refractories are different.…
The substance that can delay the setting and hardening time of refractory castable is called retarder.…
Admixtures that can greatly reduce the amount of mixing water under the condition that the slump of concrete is basically the same are called superplasticizers.…