What should be paid attention to when using concrete admixtures(2)?

In the process of concrete mixing, the mixing method of admixture has a great influence on the effect of admixture.…

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What should be paid attention to when using concrete admixtures?

Admixtures can be used for almost all kinds of concrete, but suitable admixtures must be selected according to engineering needs, construction conditions and construction technology.…

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How to avoid mortar quality problems caused by excessive hydration reaction caused by high temperature?

In the summer when the temperature is high and the air humidity is low, due to the accelerated hydration reaction at high temperature, the moisture is easy to evaporate, the mortar fluidity loss is fast and the setting time is shortened, the construc…

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Air bubbles in concrete: Why and How to deal with it?

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.…

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Thermal insulating refractories

Thermal insulation materials refer to materials or material composites that have significant resistance to heat flow.…

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How to maintain foam concrete?

Foam concrete natural maintenance can be divided into two types: cover-up sprinkler maintenance and plastic film maintenance.…

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Advantages of clc lightweight foam concrete

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…

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How to mix cement materials in foam concrete construction?

Cement is the main raw material of foam concrete. Because foamed concrete is mostly cured at room temperature and mixed with a large amount of foam, these two points determine its high cement proportion.…

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Why can foam concrete floor play the role of sound insulation and noise reduction?

Foam concrete is also known as clc foam concrete. It is a lightweight thermal insulation material made of cement, lime and fly ash as main materials and mixed ingredients such as foaming agent.…

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Foam concrete used as lightweight density-reduction filling material

Foam concrete is an excellent electromagnetic shielding material, which can absorb and eliminate electromagnetic waves.…

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Foam concrete used as sound-absorbing and energy-absorbing material

The open-cell foam concrete is an excellent sound absorption material, while the closed-cell foam concrete is an excellent sound insulation material.…

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Foam concrete used as thermal 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.…

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Micro silica fume is also well used in the concrete industry. Its physical characteristics include small particles, high purity, and pozzolanic solid activity. Adding micro silica fume to concrete can not only improve the properties of concrete in ma…

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