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.