TYTRO® HC 270 is a ready-to-use aqueous solution of chemical compounds specifically designed to stabilise the hydration of shotcrete. The ingredients are factory pre-mixed in exact proportions under strict quality control to provide uniform results. One litre weighs approximately 1.15kg ± 0.02kg.
TYTRO® HC 270 satisfies the Japan admixture standard JIS A6240 and is approved by ASTM C 494 as a Type D retarder.
TYTRO® HC 270 is used to stabilise cement hydration in shotcrete system. TYTRO® HC 270 is used in situations where a controlled set time extension is required.
The addition of TYTRO® HC 270 provides considerable benefits in the batching and utilisation of the concrete.
TYTRO® HC 270 stabilises the hydration process of portland cement preventing it from reaching initial set. This stabilisation is not permanent and is controlled by dosage rate. This stabilised concrete then resumes normal hydration when it is activated by the addition of TYTRO® SA alkali-free accelerator at the nozzle. The result is shotcrete with normal plastic and hardened properties.
TYTRO® HC 270 is available in bulk, and 205L drums. It contains no flammable ingredients. TYTRO® HC 270 will freeze, but will return to full effectiveness after thawing and thorough mechanical agitation.
TYTRO® HC 270 is compatible in with all TYTRO® shorcrete admixtures. It is necessary to make a preliminary evaluation of the desired properties and to make product adjustments accordingly.
Addition rates of TYTRO® HC 270 for shotcrete varies between 0.2% and 1% by weight of cement. The amount used will depend on the specific materials involved, concrete age, temperature conditions, and stabilisation period. Consult your local GCP representative.
Please contact your local GCP representative for further information regarding the dispensing equipment for this product.
See TYTRO® HC 270 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.
TYTRO 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 GCP Australia Pty. Ltd., 14 Colebard Street West, Archerfield, Brisbane, Queensland 4108, Australia 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
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