Beijing Dongke United Technologies Co.,Ltd.

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Concrete admixture

Concrete is the very important material for building.

Looking back to the developing of Chinese construction, we ever build house by thatched, that’s the very long time ago. The house built by thatched could be delicate. It can’t prevent the wind, the heavy rain and can’t be exposed to fire. The thatched is really easily to be burnt.

Then we come to the period that build house by wood

wood could be better than thatched, but the same problem about fire, and another problem about the rain can rust the wood, so for years the wooden house would be destroyed and it’s not easy for repair the house.

After decades we use the blocks, tiles and stones to build house.

The sand and cement gradually be applied, and we find this kind of material could help to build very high building, but we are still developing discover the more stable building structure.

Ordinary concrete refers to an artificial stone made of cement as the main cementing material, mixed with water, sand, stone, chemical admixtures and mineral admixtures if necessary, matched in appropriate proportions, uniformly mixed, compacted, formed, and cured and hardened. . Concrete is mainly divided into two stages and states: the plastic state before setting and hardening, that is, fresh concrete or concrete mixture; the hard state after hardening, that is, hardened concrete or concrete.

For increase the strength of the concrete and for other functions, we then develop the below products:

Polycarboxylate superplasticizer liquid series

DK-100 The base PCE superpalsticizer for water reduce.

The function of water reducer is to reduce water through molecular wrapping. Generally speaking, it is to fill the gaps of cement molecules through water reducer molecules to prevent and slow down the adsorption of cement to water, that is, steric hindrance, thereby improving cement and The interfacial tension of water is intuitively expressed as the slump. Of course, the effect of the combined water-reducing agent has been improved from a simple water-reducing mechanism to other functional effects such as condensation time. The water ruducing rate would reach to 28%.

DK-200 The base PCE superplasticizer for slump retention.

Slump retaining agent is an admixture that can keep the concrete slump from losing quickly. Slump retaining agent is essentially a retarder, which delays the hydration and coagulation of cement and achieves the effect of maintaining slump.

Polycarboxylic acid super superplasticizer, which has a retarding effect, and generally has a better slump retention effect.

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