WRDA® PA

Complex dispersant technology water-reducing set-accelerating admixture

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Product Description

WRDA® PA is a non-chloride, highly purified, polymer-based water-reducing set-accelerating admixture formulated to produce concrete with enhanced water reduction. It is effective through a wide addition range. WRDA PA combines the benefit of stronger water reduction, shorter finishing time and superior strength development.

WRDA PA meets and exceeds AS 1478 - 2000 Type WRAc. WRDA PA contains no added chlorides and when dosed at 1,200mL / 100kg of total cementitious material, contains Triethanolamine (TEA) below 0.05%. WRDA PA 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 1.380kg ± 0.02kg.

One litre of Daracem 19A weighs approximately 1.2kg ± 0.02kg.

Features

  • WRDA PA 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.
  • WRDA PA does not initiate or promote the corrosion of reinforcing steel when used at the recommended dose rates.

    Uses

    WRDA PA 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.

    Compatibility with Other Admixtures

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

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

    Packaging & Storage

    WRDA PA is available in bulk and 205L drum.

    Shelf life is 12 months.

    Product Advantages

    • Increases water reduction
    • Enhances finishing time 
    • Increases concrete strength 
    • Enhances labour savings and productivity

      Addition Rates

      WRDA PA 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 PA 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.

      Dispensing Equipment

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

      Health and Safety

      Avoid mixing or bringing WRDA PA in contact with strong acidic materials. Please see the WRDA PA Material Safety Data Sheet, or consult GCP Applied Technologies.

      gcpat.vn | For technical information: asia.enq@gcpat.com

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      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, ADVA, MIRA and Darex 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 2016 GCP Applied Technologies, Inc. All rights reserved.

      Printed in Singapore | 07/16 | 200-WRDA-285


      GCP Applied Technologies Inc., 2325 Lakeview Parkway, Alpharetta, GA 30009, USA
      GCP Vietnam Company Ltd, Lot B14, Section B, Street No. 12, Xuan Thoi Son Small Scale Arts & Crafts Group, National Road 22Xuan Thoi Son Village, Hoc Mon District, Ho Chi Minh City
      This document is only current as of the last updated date stated below and is valid only for use in Vietnam. 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.vn. 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: 2022-10-13

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