DARASET® 304
Chloride-free, hardening accelerator for concrete acc. EN 934-2:T7
Fields of Application
DARASET® 304 is suitable for Portland cements, however, it is not recommended for use with calcium aluminate or supersulfated cements.
Technical Data
| Form | Powder |
| Homogeneity | homogeneous (tested acc. DIN V 20000-100, Annex A) |
| Colour | White to yellowish |
| Density | 1000 ± 150 kg/m³ |
| pH-value | 7,0 ± 1 (3% Suspension) |
| Total chloride content | < 0,10 m.-% |
| Alkali content | approx. 0,50 m.-% |
| Storage | Keep well closed in original containers. Protect from excessive heat, frost and moisture. |
| Recommended Dosage | 0,20–2,00 m.-% of cement |
| Physiological effect | May irritate skin and eyes; see SDS (Safety Data Sheet) |
| Shelf life | approx. 1 year in closed original containers |
Dosage and Use
Range: 0.30 kg – 3.80 kg per 100 kg cement (0.3%- 3.8% b.w.c.).
The amount of DARASET 304 used will depend on specific job conditions, local materials and on the degree of early strength development required. It is recommended that trials are conducted to determine the optimum addition range for each application.
DARASET 304 should be dosed along with the other dry components of the mix to ensure optimal dispersion. DARASET 304 should never be blended with any other admixture and should not come in contact with other admixtures prior to addition to the concrete mix.
Special Information
Preliminary tests, according to official national standards, are always required before use!
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Last Updated: 2022-11-24
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