MIRA® Q83 is a mid-range water reducer specifically formulated to produce concrete with enhanced finishing characteristics and controlled set time. Effective through a wide addition rate range, MIRA Q83 combines the benefits of normal and high range water reducers allowing for improved control of the concrete’s placing and finishing properties.
MIRA Q83 is an aqueous solution of complex organic compounds, each of which contributes uniquely to the concrete’s final properties. It contains patented finishability agents that provide performance superior to conventional water-reducing products. MIRA Q83 is also formulated with a catalyst which promotes more complete hydration of portland cement to assure superior strength performance. It is manufactured under rigid controls which provide uniform, predictable performance. MIRA Q83 contains no calcium chloride. Supplied as a dark brown, low viscosity liquid, one litre weighs approximately 1.20kg ± 0.02kg.
MIRA Q83 complies with the admixture specifications of SS 320: 1987.
The exceptional water-reducing capabilities allow for concrete production at higher slumps with better water retention and internal cohesiveness, providing a less harsh concrete with improved placement properties. Formulated with proven finishing enhancing components, MIRA Q83 controls bleeding while bringing the paste to the surface. Finishers have stated that the concrete has improved trowelability. The influence of MIRA Q83 on the finishability and pumpability of lean mixes and mixes using manufactured sand has been particularly noticeable. Floating and troweling, by machine or by hand, easily imparts a smooth, close tolerance surface with less finishing time and labour.
The water reduction properties, 5-12% water reduction, and dispersion characteristics allow the production of lower water to cement ratio concrete and more complete hydration. The combined effect is increased compressive and flexural strengths at all ages.
MIRA Q83 produces a concrete with lower water content, improved placement properties and enhanced finishability. It yields a less permeable and more durable concrete. MIRA Q83 is effective in improving pumpability and finishability of concrete using angular and coarse manufactured sand (in place of natural sand). It imparts a “slickness” to the surface of the concrete making it most appropriate for concrete flatwork as well as slip form work. MIRA Q83 is also particularly effective in lean or fly ash and slag compensated mixes. MIRA Q83 delays the initial and final set times of concrete, typically by 1 to 5 hours.
The addition rate range of MIRA Q83 is typically 300 to 600mL / 100kg of cementitious material. Optimal addition rate depends on the other concrete mixture components, job conditions, and desired performance characteristics.
MIRA Q83 is compatible with all air entrainers, water reducers, retarders, accelerators and high range water reducers. Due to a synergistic effect of MIRA Q83, the amount of air-entraining may be reduced by 25 to 50% when added to concrete with MIRA Q83. Each admixture should be added to the concrete separately
MIRA Q83 is available in bulk, and 205L drums. MIRA Q83 contains no flammable ingredients. It will freeze at approximately -9°C but will return to full strength after thawing and thorough mechanical agitation.
Please contact your local GCP representative for further information regarding the dispensing equipment for this product.
See MIRA Q83 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 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 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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