GR-P7 Polycarboxylates High-performance Water-reducing Admixture

GR-P7 is high-performance aqueous dispersion agent which is mainly used in ready-mixed concrete. GR-P7 is key ingredient in admixture of concrete.

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Product Description

GR-P7 is high-performance aqueous dispersion agent which is mainly used in ready-mixed concrete. GR-P7 is key ingredient in admixture of concrete.

It has high water-reduction rate and broad adaptability with many kinds of cement. It can improve the workability of concrete while significantly reduce the mixing water of concrete. The slump retention effect will be very good if mixed with other polycarboxylates high-performance slump-retention admixture of our company.

Typical Analysis:

Natural Characteristics:Polycarboxylic acid aqueous solution;

Appearance(20℃):light yellow to brown liquid;

Solid Content(%):  40±1%;

PH Value(20℃):  5~7;

Proportion(20℃):1.07±0.02 ;

Chloride Content(%):<0.01 ;

Alkali Content(%):<1.5

Characteristics of GR-P7

²  Water reducing rate up to more than 25%;

²  Achieve high efficiency at low dosage;

²  Broad adaptability with many kinds of cement;

Advantages of GR-P7

²  Improve productivity of the concrete;

²  Reduce the comprehensive cost of the concrete;

²  Improve the workability of the concrete;

As polycarboxylates high performance water-reducing admixture, GR-P7 can be used to design admixture products to meet various construction requirements of advanced-mixed concrete.

Application:

GR-P7 is mainly used in the production of ready-mixed concrete as water-reducing ingredient to meet the initial liquidity requirements of the concrete of all strength grades. The concrete has lasting workability if it is compounded with our plasticity liquid.

When GR-P7 is compounded with other varieties of admixture, please pay attention on the compatibility, and it should be tested before used.

Examples of GR-P7: Product in an ready-mixed concrete mixing station, the proportion and performance of concrete are showed in following tables:

Form 1——Concrete mix proportion

Component Qty(kg/m³)
Cement P.O 42.5 200
Fly ash GradeⅠ 95
Mineral powder S95 70
Medium sand 830
Gravel 5-31.5mm 1000
Water 161

 

Form 2——Performance

Admixture GR-P7
Solid dosage of admixture(%) 0.17
Initial slump/ Expansion degree(mm) 220/570
60min slump/ Expansion degree(mm) 210/500
Air content (%) 2.6
Concrete status Good parcel and softness

It can be seen from the above results that the concrete product used with GR-P7 shows good workability, initial liquidity and liquidity at 1 hour all can meet requirements of construction.

Storage:Sealed storage if unused, storage temperature is 0~40℃, Storage period to maintain optimum performance is 24 months.

Package:Bulk packaging of 1000/2000 kg, bucket packaging, or according to customer requirements.