Concrete Admixtures
MC-Super 43 I
Super Plasticizer and Setting Retarder for Concrete
MC-Super 43I is a high range, water-reducing admixture designed to produce concrete with the workability needed to facilitate concrete placement. It is based on the modified lignosulphonate.
| Appearance | Clear brown liquid |
|---|---|
| Specific gravity @ 25°C | 1.14 g/cm³ |
| Chloride content | Nil |
| Air entrainment | < 1% |
| pH | 7 ± 1 |
| Shelf life | 12 months |
| Packaging | 210 L drums and large-capacity tanks. |
| Addition rate | 800 ± 200 ml / 100 kg cement |
Description
MC-Super 43 I is a high-range water-reducing admixture designed to produce concrete with the workability needed to facilitate placement. It is based on modified lignosulphonate.
Where to use
Recommended where initial retardation of setting is required or desired. Improves performance in prestressed, precast and flowing-concrete applications. May be used with air-entraining cements and air-entraining admixtures where air-entrained concrete is specified or desired. When used with another admixture, each admixture must be dispensed separately into the mix.
Standards / source references
ASTM C-494 Type G · BS 5075
Advantages
• Increased compressive and flexural strength. • Improved workability at equal water content compared with non-treated reference concrete. • Reduced water content required for a given workability. • Retarded setting characteristics. • Rapid gain of strength for earlier stripping. • Earlier structural use of concrete.
Dosage / method
MC-Super 43 I may be added directly to the mixing water before it enters the mixer, or separately to freshly mixed concrete. Use at 800 ± 200 ml per 100 kg of cement. Determine the optimum dosage by trials using the same materials intended for use.
Cleaning
Clean tools and equipment with water.
Compatibility
Compatible with all types of Portland cement. Compatible with other MC-Admix products; each admixture must be added separately.
Storage / shelf life
12 months under suitable storage conditions.
Safety
Non-toxic and nonflammable according to the approved source. Wash skin contamination with water. Standards ASTM C-494 Type G · BS 5075
Packaging
210 L drums and large-capacity tanks.
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