Cementitious General Purpose Concrete Repair Mortar

PRODUCT DESCRIPTION Tasir®-MT05 is a one component cement based polymer modified general purpose repair and reprofiling mortar, meeting the requirements of Class R3 of BS EN 1504-3 USES ▪ For repairing all types of structures not exposed to water submersion. ▪ Overhead and vertical repairs ▪......

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Tasir®-MT05 is a one component cement based polymer modified general purpose repair and reprofiling mortar, meeting the requirements of Class R3 of BS EN 1504-3



▪ For repairing all types of structures not exposed to water submersion.

▪ Overhead and vertical repairs

▪ Hand applied repairs

▪ For exterior and interior use

▪ In place of R1& R2 mortars



▪ Pre-bagged for quality

▪ Just add water to amount required

▪ Contains no chloride admixtures

▪ High build

▪ Low wastage


Conforms to the requirements of BS EN 1504-3 R3 Classification









The concrete shall be free from dust, loose material, surface contamination and materials which reduce bond or prevent suction or wetting by repair materials.

Steel reinforcement

Rust, scale, mortar, concrete, dust and other loose and deleterious material which reduces bond or contrib- utes to corrosion shall be removed to a minimum standard of SA2½.

Reference should also be made to BS EN1504-10:2003 for specific requirements.

Substrate Preparation/Bonding Primer/Reinforce- ment Coating


Delaminated, weak, damaged and deteriorated con- crete and where necessary sound concrete shall be re- moved by suitable mechanical or very high pressure waterblasting [up to 110 mPa (16500 psi)] techniques. Tying wire fragments, nails and other metal debris em- bedded in the concrete should be removed where pos- sible.

The edges where concrete is removed should be cut at a minimum angle of 90o to avoid undercutting and a maximum angle of 135o to reduce the possibility of de- bonding with the top surface of the adjacent sound concrete and should be roughened sufficiently to provide a mechanical key between the original materi- al and Tasir®-MT05.

Ensure sufficient concrete is removed from around re- inforcement to allow coating and compaction of the repair material.

Steel reinforcement:

Surfaces should be prepared using abrasive blast cleaning techniques or high pressure waterblasting [up to 60 mPa (9000 psi)] techniques.

Where exposed reinforcement is contaminated with chloride or other material which may cause corrosion, the reinforcement shall be cleaned by low pressure waterblasting [up to 18 mPa (2700 psi)].

Bonding primer:

On a well prepared and roughened substrate a bond- ing primer is generally not required.

When a bonding primer is not required pre-wet the surface. The surface should not be allowed to dry be- fore application of the concrete repair mortar. The sur- face should achieve a dark matt appearance without glistening and surface pores and pits should not con-tain water.

When a bonding primer is necessary apply Tasir®-MT01 (Refer to the relevant Product Data Sheet).

Site adhesion values - Structural Repair 1.2-1.5 mPa Non Structural repairs minimum value 0.7 mPa

Reinforcement coating:

Where a reinforcement coating is required as a barrier apply to the whole exposed circumference two coats of Tasir®-MT01 or Tasir®- EpoCemment  if chlorides are present.(Refer to the relevant Product Data Sheet).

Reference should also be made to BS EN1504-10:2003 for specific requirements.


Tasir®-MT05 can be mixed with a slow speed (< 500 rpm) electric drill mixer.

In small quantities only, product can also be mixed by hand.

Pour the water in the correct proportion into a suit- able mixing container. While stirring slowly, add the powder to the water. Mix thoroughly for at least 3 minutes to the required consistency.


Hand Applied

If a bonding primer has been used apply repair mortar “wet on wet”. The repair mortar shall be worked into the prepared pre-wetted substrate between the min- imum and maximum layer thicknesses and shall be compacted without inclusion of entrapped air pockets using a trowel or gloved hand.

Where layers are to be built up to prevent sagging or slumping, each layer should be allowed to stiffen be- fore applying subsequent layers “wet on wet”. When layers cannot be applied “wet on wet”, or if more than 24 hours between layers apply a bonding primer of Tasir®-MT01 and apply repair mortar “wet on wet”.

Finishing should be done to the required surface tex- ture as soon as mortar has started to stiffen.

Reference shall be made to BS EN1504-10:2003 for specific requirements.


It is essential to cure the repair mortar immediately after application for a minimum of 3 days to ensure full cement hydration and to minimise cracking. Use polythene sheeting taped down at the edges or other approved method.

Curing compounds shall not be used when they ad- versely affect subsequently applied products and sys- tems.

Reference shall also be made to BS EN1504-10:2003 for specific requirements.


Clean all tools and application equipment with water immediately after use. Hardened/cured material can only be mechanically removed.


▪ Refer to recommendations provided in BS EN 1504- 10.

▪ Avoid application in direct sun and/or strong wind and/or rain.

▪ Do not add water over recommended dosage.

▪ Apply only to sound, prepared substrates.

▪ Do not add additional water during the surface finish- ing as this will cause discoloration and cracking.

▪ Protect freshly applied material from freezing.


All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control.


Please note that as a result of specific local regula- tions the performance of this product may vary from country to country. Please consult the local Product Data Sheet for the exact description of the application fields.


For information and advice on the safe handling, stor- age and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet contain- ing physical, ecological, toxicological and other safety- related data.



The information, and, in particular, the recommendations relating to the application and end-use of TASIR products, are given in good faith based on TASIR's current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with TASIR’s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended application and purpose. TASIR reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.

Tasir Construction Material&Technology Corporate Headquarters

Tianda Block, Jianggan District, Hangzhou City, Zhejiang Province, China

Tel: +86-571-28119206 

Fax: +86-571-28197878

Specifications Subject to Change.

For most current version of datasheet, go to

© 2018Tasir Construction Material&TechnologyCp.,Ltd | 08-21-2018  Rev. H | Chi

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