Product Overview

SikaPlast®-309 PR is a high-efficiency superplasticizer built on modified polycarboxylate (PCE) chemistry, engineered as a high-range water reducer for ready-mixed concrete. By dispersing cement particles more effectively, it allows a substantial cut in mixing water while preserving flow, producing denser, stronger and more durable concrete. It performs reliably at low dosages and stays comparatively insensitive to changes in aggregate gradation and cement source, which makes it a dependable choice for batching plants handling variable raw materials. Typical uses span ready-mix supply, high-water-reduction mixes and concrete demanding excellent placement and compaction. It serves RMC producers, infrastructure contractors and precast manufacturers who need consistent workability and strength. Space Arc Engineering, an Authorized Project Distributor of Sika in India, supplies SikaPlast®-309 PR with technical guidance for mix optimisation.

Features & Benefits

• Powerful water reduction that translates into higher density, compressive strength and durability
• Effective even at low addition rates, helping optimise admixture cost per cubic metre
• Robust performance across varying aggregate sources and cement types
• Maintains workability for placing and compaction while strength continues to develop
• Compatible with all common cements and cementitious binders
• Conforms to IS 9103 and ASTM C494 for assured quality

Technical Highlights

Applications

• Ready-mix concrete for high-rise and commercial building structures
• Infrastructure pours such as bridges, flyovers and metro elements
• Industrial floors, foundations and heavily reinforced sections
• Water-retaining and durability-critical structures needing low permeability
• Residential raft and column concrete where consistent workability is required