Fosroc Conplast SR is a high-performance, chloride-free, set-retarding admixture designed to delay the setting time of concrete while maintaining its workability and strength. It is based on modified lignosulphonates and is particularly useful in hot climates or in situations where long transport or placement times are involved. Supplied as a brown liquid, it disperses easily in water and is compatible with all types of Portland cement.
Key Features & Benefits
Technical Specifications
Application & Dosage
Conplast SR is recommended for use in mass concrete pours, ready-mix concrete, and areas where transportation or placement time is extended. The typical dosage is 0.30 to 0.70 litres per 100 kg of cement, depending on the required delay. Site trials are advised to determine optimal performance.
Packaging & Storage
Surface retarder for concrete.
Surface retarder for producing exposed aggregate concrete finish in face-down precast concrete manufacture
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