Addition Rates
The performance of DBM W7 is best assessed after preliminary trials on site, to determine the optimum dosage and effect on compressive strength, water absorption, etc.
As a guide to these trials, an addition rate of 0.5%–1.0% DBM W7 by weight of cement is recommended.
Effects of Overdosing
Serious overdosing of DBM W7 will generally produce an increase in workability and cohesion of the mix, which could cause slumping particularly within semi-dry mixes.
Dispensing
It is preferable that liquid admixtures for concrete should be introduced into the mixer by means of automatic dispensing equipment. Details are available on request.
Health and Safety
For further information see the DBM W7 SDS (Safety Data Sheet) or consult GCP.
Packaging
DBM® W7 is supplied in nominal 210 litre free, non returnable containers.
Alternatively, 1000 litre IBCs or bulk deliveries can be arranged.