Ronacrete Ronafix Universal Admixture

Ronacrete Ronafix Universal Admixture is a polymer admixture for use with concrete repair mortars. Whilst enhancing chemical and physical properties, it also provides waterproofing and frost resistance as well as promoting adhesion to building surfaces.

Best Uses

Ronafix Universal Admixture allows mortars to be placed in thin section and is suitable for use on a wide range of applications where thin high strength and high performance mortars are required.

Ronafix is suitable for use on the following applications:

• Floor screeds
• Concrete repair
• Waterproof renders
• Slurry coats/levelling and protective
• Heavy-duty floor toppings
• Protection of steel reinforcement
• Bedding and bonding mortars
• Tanking and waterproofing

Application

There are 2 mix designs when using Ronafix as a concrete repair mortar. Ronafix Mix Design A is used for concrete repairs where there is no exposed steel reinforcement and Ronafix Mix Design D is used where any reinforcement is exposed.

Mortar should be applied in layers to achieve the required thickness, reform the original profile of the concrete and cover reinforcing steel. The layer thickness will vary according to the nature of the substrate, the shape and size of area being repaired and mixing and application technique.

Materials may be applied using a combination of hand packing or traditional tools. In order to prevent honeycombing and voids, the concrete repair mortar must be well compacted.

Apply the concrete repair mortar in successive layers to achieve the required thickness. Scratch the face of intermediate layers and apply a coat of Ronafix cement primer immediately prior to applying the next layer.

If applying a protective or decorative coating such as RonaBond Crack Bridging Anti-Carbonation Coating and RonaBond Anti-Carbonation Coating WB leave the final layer with a sponged or wood float finish to aid adhesion. Cure the finished repair with Ronacrete Curing Membrane or tight fitting polythene.