MIRA® 187

Mid-range water-reducing admixture

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Product Description

MIRA® 187 is an aqueous solution of chemical dispersants combined with other chemicals which increase its beneficial effects on the quality and plasticity of a concrete mix.

MIRA 187 is a mid-range water reducer, specially formulated for extended slump life. It is a low viscosity liquid which has been formulated by the manufacturer for use as received. MIRA 187 contains no added chloride.

MIRA 187 is formulated to comply with the following chemical admixture specifications for concrete: ASTM C494 as Type F and Type G; BS EN 934-2: 2001 and SS EN 934–2: 2008.

One litre of MIRA 187 weighs approximately 1.05kg ± 0.02kg.

Applications

MIRA 187 provides improved slump retention in flowable concrete. It is ideal for low water-cement ratio concrete designed for high early compressive and flexural strengths with exceptional workability and flow characteristics. Because of its unique ability to draw maximum effect from the cement content of a mix, it is suitable for all cement types and frequently gives excellent performance. MIRA 187 can be used in precast/prestress work to reduce the high energy requirement of external heat for accelerated curing. MIRA 187 helps to solve difficult placeability problems such as dense rebar networks or constricted forms and job conditions requiring that the concrete be transported or pumped for long distances. Even at high slump, the concrete consolidates well without segregation. MIRA 187 concrete reaches stripping strengths quickly and finishes easily without the stickiness, tearing and surface drying characteristics sometimes experienced with other high range water reducers.

Addition Rates

Addition rates of MIRA 187 can vary with type of application, but will normally range from 500 to 1,800mL / 100kg of cementitious material. At a given water-cement ratio, the slump required for placement can be controlled by varying the addition rate. Should job site conditions require using more than recommended addition rates, please consult your local GCP representative.

Dispensing Equipment

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

Health and Safety

See MIRA 187 Material Safety Data Sheet or consult GCP Applied Technologies.

    Product Advantages

    • Exceptional workability and flowability
    • Improved slump retention in flowable concrete
    • Good placeability into forms and around reinforcing steel
    • Early achievement of form stripping strengths
    • Reduced energy requirement for precast/prestress work

    Compatibility with Other Admixtures

    MIRA 187 treated concrete should use a Wood Resin air-entraining agent, (such as DARAVAIR®) or a tall oil derivative air entrainer (such as DAREX® AEA®) for proper air void parameters to provide resistance against freeze-thaw attack.

    Pretesting of the concrete should be performed to optimise dosage rates, determine mix design and setting characteristics. Admixtures should not be in contact with each other before entering the concrete. Pretesting to determine optimum addition rates will benefit performance

    Packaging

    MIRA 187 is available in bulk, in 205L drums and in 1000L totes. MIRA 187 contains no flammable ingredients. It will begin to freeze at approximately 0°C, but will return to full strength after thawing and agitation. In storage and for proper dispensing, MIRA 187 should be maintained at temperatures above 4°C.

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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, Daravair, Darex and AEA 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 2017 GCP Applied Technologies, Inc. All rights reserved.


    GCP Applied Technologies Inc., 2325 Lakeview Parkway, Alpharetta, GA 30009, USA
    GCP Applied Technologies (Malaysia) Sdn. Bhd, 7 Lorong CJ 1/1A, Off Jalan Balakong, 43200 Cheras Jaya, Kuala Lumpur, Malaysia
    This document is only current as of the last updated date stated below and is valid only for use in Malaysia. 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.my. 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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