MIRA® MP 321

Multi-purpose water reducer

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Product Description

MIRA® MP 321 is an aqueous solution of complex polycarboxylate polymers which contribute uniquely to concrete’s final properties of strength and durability. MIRA® MP 321 has been developed so that at various dose rates it can function as a water reducer (Type WR), mid-range water reducer (Type MWR) and high range water reducer (Type HWR).

MIRA® MP 321 is manufactured under rigid controls to ensure uniform and predictable performance. The specific gravity of MIRA® MP 321 is 1.05. MIRA® MP 321 contains no triethanolamine. MIRA® MP 321 can be used as a single admixture as a substitute for all other water reducing admixtures.

Addition Rates

MIRA® MP 321 has flexible dose rates:

  • As a water reducer, Type WR, dose rates of 300-500mL / 100kg total cementitious
  • As a mid- range water reducer, Type MWR, dose rates of 500- 800mL / 100kg total cementitious
  • As a high range water reducer, Type HWR, dose rates of 800- 1800mL / 100kg total cementious

Compatibility with other GCP admixtures

MIRA® MP 321 when used in combination with an air entrainer, with which it has a synergistic effect. It is recommended that preconstruction (lab and field) trials are undertaken to achieve the specified air content.

MIRA® MP 321 can be used in conjunction with all of GCP’s WRDA®, ADVA®, DARASET® retarders and ECLIPSE® admixture.

When using admixtures in the same concrete mix design, each admixture should be added separately to the mix.

MIRA® MP 321 cannot be used with DARACEM® 19A.

Dispensing Equipment

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

Packaging and Storage

MIRA® MP 321 is available in bulk, IBCs and 205L drums. MIRA® MP 321 contains no flammable ingredients. MIRA® MP 321 will freeze at 0￳C but will return to full functionality after thawing and thorough mechanical agitation.

Product Advantages

  • Neutral set, minimal set extension at higher dose rates
  • High level of cementitious dispersion leading to high compressive strengths
  • Reduced placement effort for concretes made at higher slumps
  • High workability
  • MIRA® MP 321 can be used in both premix and precast applications

Health and Safety

MIRA® MP 321 is a non-hazardous chemical admixture. Please refer to the Material Safety Data Sheet or consult GCP Applied Technologies.

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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.

MIRA, WRDA, ADVA, DARACEM, DARASET and ECLIPSE 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.

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/mira-mp-321