Polycarboxylate superplasticizer Powders

It is a new excogitated environmental superplasticizer. It is regarded as an excellent product because it owns high water reduction capacity, high slump retention ability but contains low alkali. And it has high strength gaining rate. It can be widely used in premix of common concrete, gushing concrete, super fluid state of self-compacting concrete and concrete of high strength and durability. It is more useful in high-strength and high performance concrete, precast concrete and concrete of super-fluid state to avoid self-leveled vibrating.  Specifications No. Items Specifications 1 Appearance Light yellow powder 2 Density (23°c) 500-520 kg/m3 3 PH Acidity (23°c) 8.5-9.5 20% in water 4 Solid content 98-99% 5 Cl content 0.10% max. 6 Na2SO4 content 4.0% max. 7 NaO+0.658K2O 5.0% max. 8 Viscosity (23°c) 9-13 mPas 20% in water 9 Stability (0°c,24hours) Good 10 Solubility Very Good 11 wt% of Cement 0.18-0.22 12 Cement paste flow 240mm min. 13 Water reducing of mortar 20% min. 14 Slump recention (1 hour) 150mm min Feature: 1.Wide adaptability: It is compatible with ordinary silicate cement, slag silicate cement and all kinds of blendings having excellent dispersibility and plasticity. 2.High water reduction: More than 38% water reducing rate with improving concrete working characteristics, also increasing concrete strength and durability. 3.Good slump retention ability: slump loss is less than 20% during two hours, guarantee concrete pumpability. 4.Good dispersibility: Making concrete have high fluidity. 5.Good cohesiveness: Making concrete have excellent workability, non-segregative & non-bleeding. 6.Low chloride and alkali content, no corrosion to rebar. 7.Lower dosage: high water reducing (25-40%), and cement save 15-30%. 8.High stability: no precipitation at l