WRDA® GWA
Water-reducing admixture
Product Description
WRDA® GWA is an aqueous solution formulated on modified lignosulphonates and does not contain calcium chloride. WRDA GWA is a dispersing agent which provides uniform, predictable performance and is supplied as a dark brown, ready-to-use, low viscosity liquid conforming to AS 1478 Type WR.
One litre weighs approximately 1.150kg ± 0.02kg.
Application
WRDA GWA provides a workable mix with less water resulting in stronger, less permeable and more durable concrete. It can be used in pre-mix, on-site and pre-cast plants for normal and specialty concretes.
Chemical Action
As a dispersing agent, WRDA GWA lessens the natural interparticle attraction between cement grains in water. It does this by absorbing itself onto the cement particle reducing their tendency to clump together, resulting in the mix being more workable with less water.
Addition Rates
WRDA GWA will provide water reduction with neutral sets at the recommended dose rates. At increased dose rates it can give some retardation, however this will generally depend on environmental conditions at the time of dosing.
The dose rate for WRDA GWA will typically range between 300 and 600mL / 100kg of total cementitious material.
WRDA GWA contains triethanolamine at a level which is below 0.025% S/C when used at a typical dose rate of 400mL / 100kg total cementitious.
Compatibility with Other Admixtures
WRDA GWA is compatible with all air-entraining concrete admixtures, however the quantity of air entraining agent when added with WRDA GWA to the concrete mix may be reduced by up to 50%.
WRDA GWA can be used in conjunction with HWR and both nonchloride and chloride-based accelerators. Each admixture should be added separately to the mix.
Dispensing Equipment
Please contact your local GCP representative for further information regarding the dispensing equipment for this product.
Packaging
WRDA GWA is available in bulk of 1,000L and 205L drums.
WRDA GWA is non-flammable, it can freeze at about -2°C but after thawing and agitating will have no adverse effect on the performance of the product.
Health and Safety
See WRDA GWA Material Safety Data Sheet or consult GCP Applied Technologies.
gcpat.id | For technical information: asia.enq@gcpat.com
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.
WRDA 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.
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GCP Applied Technologies Inc., 2325 Lakeview Parkway, Alpharetta, GA 30009, USA
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This document is only current as of the last updated date stated below and is valid only for use in Indonesia. 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.id. 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
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