Description

HW-CGA Cement Grinding Aids offer all the benefits of traditional grinding aids, such as increased grinding

efficiency and cement flowability. In addition, they offer a unique ability to improve cement strengths which might

otherwise be deficient due to mechanical, physical or chemical shortcomings. Advantages include either

reduced cost of production or increased cement strengths.

Primary Benefit

The HW-CGA series of Cement Grinding Aid consists of tailor-made formulations to optimize performance and

meet specific requirements at each plant. The use of HW-CGA allows the cement producer to reduce fineness

and achieve lower unit power costs without sacrificing strength. Compared with conventional grinding aids,HW-CGA offers unit power savings of 10% ~ 25% with no loss of strength. And the resulting production increases

can greatly benefit plants operating at or near their grinding capacity.

Advantages

The chemical action of HW-CGA cement griding aid decreases the interparticleattraction between cement grains

and increases the rate of hydration of cements.

The key advantages of HW-CGA cement grinding aid include:

1 Increased grinding efficiency with resulting increased mill output, higher cement fineness and/or reduced unit

power input and grinding costs.

2 Increased workability (flow) of cement mortars and concretes.

3 Increased cement flowability and reduced pack set or “silo set” of cements resulting in lower handling costs

and reduced waste.

4 Increased early and long-term compressive strengths for production of better quality cements.

5 Reduced cost of cement production through reduced unit grinding costs and through replacement of clinker

with reactive additions such as pozzolans, blast furnace slag and fly ash or with fillers such as limestone.

HW-CGA cement grinding aids are most effective in enhancing compressive strengths of blended cements

increasing to 5~8% limestone filler.

When cement particle size is not reduced, the addition of HW-CGA improves both early and long-term strength

and produces higher quality cement. Strength increases ranging from 5% to 50% have been demonstrated

during plant trials.

Packaging

HW-CGA is supplied in 200 L drums. HW-CGA may also be supplied in bulk in certain locations. It contains no

flammable materials.

Storage

Protect from freezing. Once frozen, the product should be thawed out slowly and re-mixed thoroughly prior to

use. Shelf life is minimum 6months in manufacturer's containers.