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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…
(The content of chloride ion should be controlled when compounding polycarboxylic acid high performance superplasticizer) In order to improve the early strength of concrete, some manufacturers will add triethanolamine, calcium chloride and…
(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,…
(Where are concrete admixtures used?) At first, concrete additives were used only to save cement. With the development of construction technology, admixture has become the main measure to improve the performance of…
(Why is polycarboxylate superplasticizer more suitable for modern concrete?) Modern concrete is represented by ready-mixed concrete produced in industrialization, and pumping construction is the mainstream. Mechanical properties are no longer the only…
(How to use polycarboxylate superplasticizer for different kinds of concrete?) Prestressed or precast concrete Adding polycarboxylate superplasticizer can make the compressive strength of precast concrete reach 40MPa grade at 8h to 18h;…
(Effect of polycarboxylate superplasticizer on the concrete properties) Impermeability The impermeability of concrete is related to its porosity and pore structure. According to the pore size, the pores in concrete can be…
(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. some new high-performance…
(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…
(Problems when using pce powder) In terms of action mechanism, the molecular structure of polycarboxylate superplasticizer is comb type, and the polar anion "anchoring" group with strong main chain is used to…
(How to store polycarboxylate superplasticizer?) First of all, pay attention to the storage environment of polycarboxylate superplasticizer, try to store polycarboxylate superplasticizer in a cool, ventilated, no direct sunlight place. Secondly,…
(Thermal insulating refractories) Thermal insulation materials refer to materials or material composites that have significant resistance to heat flow. The porosity of thermal insulation refractories is generally more than 45%, the bulk…