WRDA® PA95

Water-reducing set-accelerating admixture

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Product Description

WRDA® PA95 is a non-chloride, PC-based water-reducing set-accelerating admixture. WRDA® PA95 combines the benefit of water reduction, shorter finishing time and superior strength development.

WRDA® PA95 meets and exceeds AS 1478 - 2000 Type WRAc. WRDA® PA95 contains no added chlorides and when dosed at 600mL / 100kg of total cementitious material, contains Triethanolamine (TEA) below 0.025%. WRDA® PA95 is manufactured under rigid controls to ensure uniform predictable performance. It is supplied as a clear and low viscosity liquid with a specific gravity of approximately 1.39kg ±0.02kg.

Product Advantages

  • Water reduction
  • Reduces finishing time
  • Increases concrete strength
  • Improves concrete finishing and pumping
  • Provides labour savings and improves productivity

Advantages

  • The dispersion characteristics of WRDA® PA95 allows for moderate cementitious content concretes to achieve lower water-to-cement ratios. The combined effect is increased compressive and flexural strengths at all ages
  • WRDA® PA95 will improve and enhance finishing times over normal concrete, resulting in labour savings and increased productivity.
  • WRDA® PA95 enables concrete to be produced with lower water content and improved placement properties, resulting in less permeable and more durable concrete.
  • WRDA® PA95 is very effective in lean and or fly ash and slag compensated mixes both for finishing times and strengths.

Features

  • WRDA® PA95 will increase stripping strengths for quicker form or mould turn around. 
  • Improve finishing times during colder months.
  • Accelerate initial and final sets through a range of temperatures.
  • Increase water reduction to enhance concrete strengths and higher required workability.
  • Can increase de-stressing strengths in pre-stressed applications.
  • Enhance pumpability and finishability.

Addition Rates

WRDA® PA95 can be dosed at between 400 and 1,500mL / 100kg of total cementitious material. The higher addition rates will increase water reduction and acceleration, however admixture performance can depend on concrete components, job conditions, and desired performance characteristics.

To assist you in obtaining optimum performance from your admixtures from GCP Applied Technologies, we can offer comprehensive advice and site assistance service.

Overdosing of WRDA® PA95 will produce and increase concrete workability, air content and decrease setting time. The set acceleration effect will vary dependent on ambient temperatures, cement used, and the amount of overdose. However, provided correct curing procedures are followed, ultimate concrete strengths may be higher than a corresponding mix or standard admixture dosed concrete.

Compatibility with Other Admixtures

WRDA® PA95 in combination with an air entrainer can have a synergistic effect, and so increase the air content. It is highly recommended that truck trials be conducted to achieve specified air content. Please consult your local GCP representative for dosage guidelines.

WRDA® PA95 can be used in conjunction with ADVA® and MIRA® range of water reducers. Each admixture should be added separately to the mix.

WRDA® PA95 cannot be used in conjunction with DAREX® Super 20, DARACEM® or DARACEM® 19A.

    Uses

    WRDA® PA95 is used in all types of pre-mix and pre-cast applications where a non-chloride, water-reducing set accelerating admixture is required.

    All types of concrete that have chloride ion restraints such as coastal applications.

    Packaging & Storage

    WRDA® PA95 is available in bulk. Shelf life is 12 months.

    Dispensing Equipment

    Please contact your local GCP representative for further information regarding the dispensing equipment for this product.

    Health and Safety

    Please see the WRDA® PA95 Material Safety Data Sheet, or consult GCP Applied Technologies.

    gcpat.com.au | Australia customer service: 1800 855 525

    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, DAREX, ADVA, MIRA and DARACEM are trademarks, 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 2018 GCP Applied Technologies, Inc. All rights reserved.

    GCP Applied Technologies Inc., 2325 Lakeview Parkway, Alpharetta, GA 30009, USA
    GCP Australia Pty. Ltd., 14 Colebard Street West, Archerfield, Brisbane, Queensland 4108, Australia
    This document is only current as of the last updated date stated below and is valid only for use in Australia. 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.com.au. 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: 2023-07-06

    https://gcpat.com.au/en-gb/solutions/products/wrda-pa95