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Compatibility between polycarboxylic acid slump protection agent and various raw materials of concrete

When the same polycarboxylic acid sloughing agent is used but different cement is used, it is possible that this polycarboxylic acid sloughing agent has good compatibility with one kind of cement but poor compatibility with another cement, and when u…

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Deterioration of superplasticizer

Polycarboxylate superplasticizer is the third generation of high performance superplasticizer after common superplasticizer and superplasticizer.…

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What is the advantage of polycarboxylate superplasticizer?

Because the steric hindrance of the extended polymer side chain effectively hinders the secondary agglomeration between cement particles, so the product has high dispersion performance and can maintain this performance for a long time to realize the…

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What should be paid attention to when using polycarboxylate superplasticizer for C30 and below concrete?

Polycarboxylate superplasticizer has more advantages than traditional naphthalene and aliphatic superplasticizer in mixing high strength grade concrete, but its advantages of high water reduction cannot be brought into full play when the strength is…

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Effect of Limestone Powder in Machine-made Sand on PCE powder

Natural river sand has been exhausted after decades of large-scale mining, concrete production enterprises began to use machine-made sand as fine aggregate on a large scale.…

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Effect of cement temperature on the performance of pce powder

If the compatibility of polycarboxylate superplasticizer and cement is not good, the concrete mixture is prone to some problems, such as segregation, bleeding, greater slump loss, shorter setting time and so on, so that the concrete mixture can not b…

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Why is polycarboxylate superplasticizer more suitable for modern concrete?

The wide application of mineral admixtures mainly derived from industrial solid wastes diversifies the composition of cementitious materials, which is one of the main characteristics of modern concrete.…

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How to use polycarboxylate superplasticizer for different kinds of concrete?

Adding polycarboxylate superplasticizer can make the compressive strength of precast concrete reach 40MPa grade at 8h to 18h.…

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Effect of polycarboxylate superplasticizer on the concrete properties

The impermeability of concrete is related to its porosity and pore structure.…

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Polycarboxylate superplasticizer advantages

Polycarboxylate superplasticizer is based on unsaturated polymerizable monomers with active groups such as carboxyl group, sulfonic acid group, hydroxyl group and polyoxene group as raw materials.…

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Development of polycarboxylate superplasticizer

According to the different molecular structure, it can be divided into four generations of polycarboxylate series superplasticizer, the first generation is acrylic acid copolymer, the second generation is propylene ether type, the third generation is…

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Problems when using pce powder

In terms of action mechanism, the molecular structure of polycarboxylate superplasticizer is comb type, and the polar anion…

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