Product Overview

Renderoc CS is a controlled shrinkage, polymer-modified, single-component cementitious repair mortar from Fosroc designed for large-area concrete resurfacing, restoration, and thick layer repair where the control of drying shrinkage cracking is a primary performance requirement. Cementitious repair mortars, like concrete, undergo a degree of drying shrinkage as they lose water to evaporation after placement. In large pours or thick sections of repair mortar, this shrinkage can generate internal tensile stresses that, if they exceed the tensile strength of the mortar at that age, result in cracking. The controlled shrinkage formulation of Renderoc CS uses a combination of polymer modification, optimised aggregate grading, and shrinkage-compensating additives to reduce and control the magnitude of drying shrinkage to a level where cracking risk is minimised even in larger application areas and thicknesses. This makes Renderoc CS particularly suited to large-scale concrete restoration projects on bridge decks, industrial floors, car park slabs, and building structure members where the repaired area may be tens or hundreds of square metres, making shrinkage cracking both likely (due to area and restraint) and unacceptable (due to durability and aesthetics). The single-component dry powder format (just add water) ensures consistent mix quality across large volumes of material on a construction site. Space Arc Engineering distributes Renderoc CS for bridge, infrastructure, and industrial concrete restoration projects across Delhi NCR, Ghaziabad, and Northern India.

Applications

• Large-area resurfacing of deteriorated bridge decks and car park slabs
• Wide-area industrial floor concrete restoration and levelling overlay
• Thick-section structural repair of beams, columns, and walls
• Mass repair of deteriorated concrete in water treatment plants and reservoirs
• Large-area repair of corroded concrete in coastal and marine structures
• Concrete parking structure slab restoration and re-profiling

Key Advantages

• Controlled shrinkage formulation reduces risk of drying shrinkage cracking
• Polymer-modified for high bond strength to existing concrete
• Single-component — just add water for consistent quality on large pours
• Suitable for thick-section (up to 75 mm or more) large-area applications
• Low permeability for durable repairs in aggressive environments
• Compatible with all Fosroc Renderoc primers and surface treatments