R3 Cementitious High Build Concrete Repair Mortar

PRODUCT DESCRIPTION Tasir ®-MT03 is a one component cement based polymer modified high build repair and reprofiling mortar, meeting the requirements of Class R3 of BS EN1504-3 USES ▪ For repairing all types of structures ▪ Overhead and vertical repairs ▪ Hand applied repairs ▪ Spray applied......

Send InquiryChat Now


Tasir ®-MT03 is a one component cement based polymer modified high build repair and reprofiling mortar, meeting the requirements of Class R3 of BS EN1504-3



▪ For repairing all types of structures

▪ Overhead and vertical repairs

▪ Hand applied repairs

▪ Spray applied repairs

▪ For exterior and interior use

▪ In place of R1& R2 mortars



▪ Pre-bagged for quality

▪ Just add water

▪ Sprayable by the wet spray method

▪ Contains no chloride admixtures

▪ High build

▪ Low wastage


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


Chemical BasePortland cement, polymer redispersable powder, selected aggregates and additives.
Packaging25 kg bag
Appearance / ColourGrey powder
Shelf Life9 months

Storage Conditions

Store properly in undamaged original sealed packaging, in dry cool condi-tions.
DensityFresh mortar density ~ 1.65 kg/l
Maximum Grain SizeDmax: 1.5 mm
Soluble Chloride Ion ContentResultRequirement(EN 1015-17)
< 0.009%< 0.05%


Compressive Strength  Class R3Requirement>25 N/mm2 (EN 12190)
1 day7 days 28 days
~11.5 N/mm2 ~30 N/mm2~35 N/mm2 
Modulus of Elasticity in CompressionResultRequirement (EN 13412)
~ 16.0 kN/mm2 > 15 kN/mm2  
Flexural Strength28 days ~ 7.0 N/mm(EN 12190)
Tensile Adhesion Strength ResultRequirement  (EN 1542)
~ 2.0 N/mm2  > 1.5 N/mm2  
Restrained Shrinkage / ExpansionResultRequirement(EN 12617-4)
~ 2.5 N/mm2> 1.5 N/mm2 
Reaction to Fire Euro class A1 (EN 1504-3 cl 5.5)
Capillary AbsorptionResult Requirement (EN 13057)
0.11 kg.m-2.h-0.5< 0.5 kg.m-2.h-0.5
Carbonation ResistanceNot required if coated
Mixing Ratio

Wet Spray Application : ~ 2.5 to 3.5 L of water for 25kg powder

Hand Application: ~ 2.5 to 2.7 L of water for 25 kg powder

ConsumptionThis depends on the substrate roughness and thickness of layer applied. As a guide, ~ 1.65 kg/m2/mm.
Layer Thickness  3 mm min / 50 mm max ( 30 mm overhead)
Ambient Air Temperature +5°C min. / +30°C max.
Substrate Temperature+5°C min. / +30°C max.
Pot Life~ 30-50 minutes (at +23°C)



The concrete shall be thoroughly clean, free from dust,loose material, surface contamination and mater- ials which reduce bond or prevent suction or wetting by repair materials. De-laminated, weak, damaged and deteriorated concrete and where necessary sound concrete shall be removed by suitable mechanical or very high pressurewaterblasting techniques.Tying wire fragments, nails and other metal debris embedded in the concrete should be removed where possible. 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 andTasir ®-MT Repair material.

Ensure sufficient concrete is removed from around the full circumference of the reinforcement to allow ap- plication of the reinforcement corrosion protection coating and compaction of the repair material.

Steel Reinforcement:

Rust, scale, mortar, concrete, dust and other loose and deleterious material which reduces bond or contrib- utes to corrosion shall be removed. Surfaces shall be pre- pared using abrasive blast cleaning or high pressure water-blasting techniques to a minim- um standard of SA 2 (ISO 8501-1)

If these types of techniques are not permissble con- tact Tasir ® Ltd for alternative options using hand pre- paration techniques and Galvanic Anodes.

Where exposed reinforcement is contaminated with chloride or other material which

may cause corrosion, the reinforcement shall be cleaned by low pressure waterblasting before application of reinforcement cor- rosion protective coating.

Reference shall be made to EN1504-10 for specific re- quirements.


Tasir ®-MT02 can be mixed with a low speed (<500 rpm) hand drill mixer or for machine application, using a force action mixer 2 to 3 bags or more at once depending the type and size of mixer.

For small quantities,Tasir ®-MT02 can also be manually mixed

Pour the minimum recommended water in a suitable mixing container. While stirring slowly, add the powder to the water and mix thoroughly at least for 3 minutes adding additional water if necessary to the maximum specified amount and adjust to the required consistency.


Reinforcement Corrosion Protection Coating:

Where a reinforcement coating is required the applica- tion of a repair mortar shall be applied wet on dry onto the reinforcement corrosion protection.

Refer to the System Information above for compatible Tasir  products and refer to the relevant Product Data Sheet for more detailed information about the reinforce- ment corrosion product.

Bonding Primer:

On a well prepared and roughened substrate a bond- ing primer is generally not required for this product. When a bonding primer is required, refer to the Sys- tem Information above for compatible Tasir  product- sand refer to the relevant Product Data Sheet for in- structions.

A small amount of Tasir ®-MT03 can also be mixed slightly wetter than normal and used as a scratch coat to fill any deep cavities or pits in the base of the sub- strate.

Any bonding primer shall be applied on a pre-wet sub- strate and subsequent application of the scratch coat/repair mortar shall be applied wet on wet onto the bonding primer.

Repair Mortar Application:

Tasir ®-MT02 can be applied either manually using traditional techniques or mechanically using wet spray equipment.

Thoroughly pre-wet the prepared substrate a recommended 2 hours before application. Keep the surface wet and do not allow to dry.

Before application remove excess water e.g. with a clean sponge. The surface shall appear a dark matt appearance without glistening and surface pores and pits shall not contain water. When manually applying first make a scratch coat by firmly scraping the repair mortar over the base of the substrate surface to form a thin layer and fill any deep cavities.

Ensure the whole surface to be repaired is covered by the scratch coat.

For vertical applications, build up layers from bottom to top by pressing mortar well into the repair area.

The surface can be finished according to the surface texture requirements using a float. Do not over-trowel as this may lead to surface cracking.


Finishing should be carried out to the required surface texture as soon as mortar has started to stiffen.


Protect the fresh mortar immediately from premature drying for a minimum of 3 days using an appropriate curing method e.g. curing compound, moist geotextile membrane, polythene sheet etc.

Curing compounds shall not be used when they could adversely affect subsequently applied products and systems.

Reference shall also be made to BS EN1504-10 for spe- cific requirements.


Clean all tools and application equipment with water immediately after use. Hardened 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 regulations the declared data for this product may vary from country to country. Please consult the local Product Data Sheet for the exact product data.


For information and advice on the safe handling, stor- age and disposal of chemical products, users shall refer to the most recent Safety Data Sheet (SDS) containing physical, ecological, toxicological and other safety-re- lated 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 | China Owned & Operated

Hot Tags: R3 cementitious high build concrete repair mortar, China, suppliers, manufacturers, cheap, made in China
Related Products
Copyright © Zhejiang Taizheng Construction Material Co.,Ltd All Rights Reserved.