MIRA® 388 is a high performance, new generation mid-range water reducer based on comb polymer technology. It is a ready-to-use liquid admixture with superior dispersing capacity for the cement particles in the concrete mix. This capability exceeds that of normal water-reducing admixtures, resulting in lower dosages and better control. MIRA 388 contains no added chloride. One litre weighs approximately 1.05kg ± 0.02kg.
MIRA 388 complies with the requirements of admixture specifications: SS EN 934-2: 2008.
Excellent slump control and slump retention are necessary properties of any high quality concrete. MIRA 388 is a tailor-made admixture that helps concrete achieve excellent slump retention for all ranges of design workability. MIRA 388 is extremely effective in enhancing workability and slump retention even in mid-slump concrete and concrete with manufactured sand (crush granite fines), where conventional admixtures have difficulties achieving these properties.
MIRA 388 is suitable for a wide range of quality concrete, from low to higher grade concrete, by adjusting addition rate. The use of ADVA® superplasticiser can help to provide further water reduction when very low water-cement ratio is needed.
Addition rates of MIRA 388 can vary with type of application. Depending on the application, dosage rates can range from 600 to 2,000mL / 100kg of cementitious material. However, in most applications, 800 to 1,600mL / 100kg of cementitious material will be sufficient. For best results, MIRA 388 should be added with the mix water. 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.
Please contact your local GCP representative for further information regarding the dispensing equipment for this product.
MIRA 388 is available in bulk and in 205L drums. MIRA 388 contains no flammable ingredients.
Most water reducers or water-reducing retarders are compatible with MIRA 388 as long as they are added separately to the concrete.
Caution should be exercised when using MIRA 388 with a retarder, as excessive retardation can occur if the admixture dosages are too high. Pre-testing of the concrete should be performed to optimise dosages and addition times of these admixtures. The admixtures should not be in contact with each other before they enter the concrete.
MIRA 388 is not compatible with DAREX® Super 20 and DARACEM® products.
See MIRA 388 Material Safety Data Sheet or consult GCP Applied Technologies.
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, ADVA, Darex 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.
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GCP Applied Technologies Inc., 2325 Lakeview Parkway, Alpharetta, GA 30009, USA
GCP (Singapore) Pte. Ltd, 25 Tanjong Penjuru, Singapore 609024.
This document is only current as of the last updated date stated below and is valid only for use in Singapore. 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.sg. 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: 2022-09-21
https://gcpat.sg/en-gb/solutions/products/mira-mid-range-water-reducers/mira-388