DARASET® 300
Chloride-free, set accelerator based on nitrate Set accelerating admixture for concrete according to EN 934-2:T6
Product Description
DARASET® 300 is a liquid set accelerating admixture for concrete and mortar.
Technical Data
| Form | Fluid |
| Colour | yellowish |
| Density | approx. 1.42 ± 0.03 g/cm³ |
| pH-value | 8.5 ± 1.0 |
| Total chloride content | < 0,10 m.-% |
| Alkali content | < 5,0 m.-% |
| Storage | Keep original containers closed, protect from excessive heat and frost. Once frozen, material cannot be used |
| Recommended Dosage | 0.50–3.00 m.-% by cement mass |
| Physiological effect | May irritate skin and eyes; see SDS (Safety Data Sheet) |
| Shelf life | approx. 1 year in closed original containers |
Mode of Action
DARASET® 300 shortens the setting time of concrete, compensates for the set-slowing effects of cooler weather conditions and contributes to the development of higher early strengths. DARASET® 300 can be used at temperatures above -15°C.
The constituent materials should be heated, and the temperature of the fresh concrete should be higher than +10°C. Only nonfrozen aggregates should be used. The substrate, rebar and molds should also not be frozen. The concrete must be protected against frost.
Dosing and Special Information
Best results are obtained when added with the gauging water, or as the last component of the mix, and then mixed for a minimum of an additional 45 seconds. Preliminary tests, according to official national standards, are always required before use!
Never pre-mix DARASET® 300 with any other admixture before they are dosed into the concrete!
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DARASET is a trademark, which may be registered in the United States and/or other countries, of GCP Applied Technologies Inc. This trademarklist has been compiled using available published information as of the publication date and may not accurately reflect current trademarkownership or status.
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This document is only current as of the last updated date stated below and is valid only for use in the UAE. 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.ae. 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: 2022-11-18
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