DBM® W7
Plasticiser for Semi-Dry Mixes
Product Description
DBM® W7 is a liquid admixture, designed for use in semi-dry mixes, specially favoured in the block paving industry. It is formulated from a blend of carefully selected synthetic and natural raw materials, and is manufactured under controlled conditions to give a consistent product.
Typical Properties
DBM W7 | |
---|---|
Appearance | dark brown liquid |
Specific Gravity | 1.10 at 20 °C |
Chloride Content | Nil |
Advantages
- Improved early age handling
- Allows reduction in cement content
- Improved compaction
- Reduced permeability absorption
- Improved pigmented performance
Compatibility with Cements
DBM W7 can be used with all types of Portland cements including cement replacement materials, fly ash, silica fume, etc.
Compatibility with other Admixtures
DBM W7 should not be premixed under any circumstances with other admixtures. While some admixtures can be usefully combined within the same mix the performance of this product may well be affected by the presence of other chemicals and we recommend that GCP Applied Technologies be contacted for advice in all such circumstances.
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.
Storage
DBM W7 should be stored in original containers or suitable closed tanks, preferably out of direct sunlight and protected from extremes of temperature.
Storage Life in Manufacturer’s Drums:
12 months from the date of manufacture
Storage Life in Bulk Storage:
12 months from the date of delivery
Technical Service
The Technical Service Department of GCP is available to assist you in the correct and best use of our products. These resources and advice are at your disposal entirely without obligation. Please contact:
GCP
Emirates Chemicals LLC
Festival Tower, Suite 1701
Dubai Festival City
P.O. Box 5006
Dubai, United Arab Emirates
Tel: +971 4 2329901
Fax: +971 4 2329940
Email: meinfo@grace.com
gcpat.uk | United Kingdom customer service: +44 (0) 1480 478421
We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.
DBM is a trademark, which may be registered in the United States and/or other countries, of GCP Applied Technologies Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.
© Copyright 2016 GCP Applied Technologies Inc. All rights reserved.
GCP0082-1216 DBM W7-UAE
This document is only current as of the last updated date stated below and is valid only for use in the United Kingdom. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.uk. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.
Last Updated: 2022-11-24
https://gcpat.uk/en-gb/solutions/products/dbm-w7