Conex SRA

Conex SRA (Shrinkage Reducing Admixture) is a concrete admixture that significantly reduces plastic shrinkage and long-term drying shrinkage cracking in concrete and cementitious mortars. By reducing the surface tension of the pore fluid, it minimises the capillary stresses that drive shrinkage cracking during and after curing — protecting the integrity and serviceability of the hardened concrete.

SRA is particularly valuable in large floor slabs, industrial pavements, water-retaining structures, and overlays where shrinkage cracking would compromise durability, aesthetics, or waterproofing integrity.

Key Features

• Reduces drying shrinkage by up to 50% versus plain concrete
• Minimises plastic shrinkage cracking during early curing
• Improves long-term durability by reducing crack formation
• Compatible with most Portland cement types and supplementary cementitious materials
• Can be combined with fibres and other admixtures
• Ideal for industrial floors, overlays, and large concrete pours

Supplied in liquid form. Available from Technotrade Associates with dosage guidance and technical data sheet.