Terraco Terraroc MBR

Terraco Terraroc MBR

Product Overview - Terraroc MBR is a specially formulated repair mortar for permanent repair of all types of concrete. - It is designed for application in layers of up to 50mm on vertical surfaces and 30mm in overhead applications. - Terraroc MBR is shrinkage compensated and is sprayable enabling fast repairs. Properties - Ready to use - Shrinkage compensated - Sprayable application - High bond strength Areas Of Use - Terraroc MBR is designed for use as part of the Terraco concrete repair system and is recommended for medium-build repair work up to 50mm vertically and 30mm (overhead) in a single application. Application Method Preparation of Surface - Do not apply at temperatures below 5oC. Remove all defective concrete back to the reinforcements, treat reinforcements with Epiprime ZR (see separate data sheet). - Avoid feather edging. - The repair area should be a minimum depth of 10mm. - Thoroughly wet the surface with water and apply a coat of Terrabond A by scrubbing it well into the surface. - Allow it to become tacky before applying the Terraroc MBR. Mixing - Ensure that the mixing water is constant for each bag of compound (4.5 ltr water/25kg Terraroc MBR). - A mechanical mixer is necessary to ensure consistency of the final mix. - Add the powder to the water and mix continuously for 3 to 5 minutes. Application and Cleaning of Tools - Apply to the prepared substrate by trowel ensuring that it is well compacted onto the primed surface/reinforcements. - Build up in layers until the desired thickness is achieved. - Where very thick sections are required allow the initial layer of Terraroc MBR to set, scratch the surface to provide a mechanical key and prime with Terrabond A before applying the final layer of Terraroc MBR. Finish using a steel float. - Terraroc MBR should not be applied in layers less than 10mm thickness. - Clean tools and equipment with water after use. Curing - Terraroc MBR should be cured immediately after troweling is finished by applying Terrabond A to the surface. - In harsh conditions the supplementary use of hessian or polythene must be used to ensure proper curing.