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Beyem R1 T

Beyem R1 T

One-component, thixotropic, low shrinkage mortar  for concrete cosmetic repairs and surface leveling.

About this product

BEYEM R1 T is a one-component, thixotropic, low shrinkage mortar for concrete cosmetic repairs and surface leveling. Formulated with special cements, selected aggregates, organic additives and resins to improve adhesion and mechanical strengths. Fiber-reinforced. Specially suitable for  thin layer concrete surface repair works.

Benefits
  • Class R1 and GP CSIV Wc2.
  • Modified polymer mortar (PCC).
  • High mechanical strengths.
  • High adhesion.
  • Thixotropic. Very good workability.
  • Free of chlorides and organic fibers.
  • Excellent re-profiling properties
  • Suitable for pump machines and manual applications.
  • Both internal and external use. Smooth surface ready to paint.
  • Superior workability. 
  • Rainwater-proof and permeable to water vapour.
Use

Cosmetic repair of precast concrete parts. Repair of the release of the surface grout of the concrete during the formwork operation. Repair of corners, damaged edges, arises and small cracks or irregularities in concrete or mortar. Sealing of pores. Fine render for the regularization and smoothing of prefabricated elements and concrete and mortar surfaces. Sealing of small joints without movement. Other non-structural repairs. Restoration work (Principle 3 , method 3.1 and 3.3 of EN 1504-9 ). Repair of spalling and preserving or restoring passivity (Principle 7, method 7.1 and 7.2 of EN 1504-9) in non-reinforced concrete.

Substrates

BEYEM R1 T is suitable for:

  • Concrete and precast concrete elements.
  • Mortars and other cement based substrates.
Preparation of substrates

Substrates must be free from dust, loose material, surface contamination and materials which reduce  bond or prevent suction or wetting  by repair materials. Where necessary, concrete  must be cleaned by sandblasting, high pressure water jetting or other approved mechanical methods that do not cause vibration or impact, to leave a clean and keyed surface. Absorbent substrates should be previously wetted until they are saturated, preventing waterlogging, and applying the mortar  once the surface has a matt appearance. Smooth, slightly absorbent or very damaged substrates should be treated to obtain a surface with minimum guarantees of roughness and tensile strength. For more information regarding substrate preparation, refer to the recommendations provided in EN 1504-10.

On mortar substrate, in case of heat or wind and/or high absorption, the substrate must be wetted as indicated above, as well as conveniently cure the applied product 24 hours after the application.

It can be applied without the need of bonding bridge/primer over concrete, mortar, ceramic, stone, well adhered paint, well adhered acrylic mortars, vitreous mosaic, etc ...

Do not apply on cellular concrete, gypsum based plasters, paint, plastic, wood or materials with  low mechanical properties.

Instructions for use

Mix manually of mechanically BEYEM R1 T with 5,0-5,5 l per bag of clean water until a homogeneous, and  and lump-free paste  is obtained. To apply with render  spray machine, it´s necessary to set the relation water/mortar  and pump pressure depending on section and length of hose  and climatology conditions. It´s important to maintain the  variables affecting the properties of the applied mortar (distance to the wall, angle of application and water proportion). Spread the mixed product with a trowel (in case of manually or mechanically application) leaving  2-6 mm of average  thickness. Press to ensure adhesion and expel the air contained in the pores. Smooth with a ruler the applied material to regulate thickness. Finishing for both hand and machine application can be done with the same trowel or float as soon as the mortar has started to stiffen. When the material is used on highly absorbent surfaces, apply a minimum thickness per 5 mm layer. Respect the correct application techniques.

Cautions and recommendations
  • Do not apply below 5ºC or above 30ºC.
  • Do not apply when there is risk of frost, rain, strong wind or direct sunlight.
  • Do not add water in excess of the recommended dosage .
  • Do not use for structural reinforcement
  • Protect the mortar applied of early dehydration, using suitable  curing methods. The curing operation in humid environment is essential for at least 24 hours after application.
  • Mix only sufficient material that can be applied using available labour and equipment.
  • Do not add cement, sand or other substances that may affect the properties of the material.
Technical data

Product identity. Properties of mixture and application data

Appearance

Powder

Color

White or Grey

Grading

0-600 µm

% Particles larger than 400 µm

< 15 %

Density of the mix

≈ 1580 Kg/m3

Pot life

≥ 1 h

Mixing water,% 

± 21,0 %

Minimum layer thickness

2 mm

Maximum layer thickness

6 mm

Maximum thickness application

10 mm

Coverage

1,4 Kg/m2  per mm of thickness

Tariff code

3824.50.90.00

Final performances

 

Type

R1, GP CS IV W2

Adhesion

≥ 0,80 MPa

Compressive strength

≥ 10,0 MPa 

Flexural strength

≥ 4,0 MPa 

Chloride ion content

0,05 %

Capillary absorption

≤ 0,5 kg/m2 h1/2

Thermal compatibility. Part 1

No fissures

 Water vapour permeability

µ < 15

 Capillary water absorption

≤ 0,2 kg/m2min1/2

 Thermal conductivity

λdry= 0,47 W/ m*k (Tabulated value P=50%)

Reaction to fire

Euroclass A1

Packaging

BEYEM R1 T is packed 25 kg plastic lined paper bags.

Storage: when stored unopened in a cool dry place, shelf life is 12 months from date of manufacture.

Cleaning tools

Tools can be cleaned easily with water before the product hardens. Hardened product can be removed only mechanically.

Project specification

Cosmetic repair of precast concrete parts, repair of the release of the surface grout of the concrete during the formwork operation, repair of corners, damaged edges, arises and small cracks or irregularities in concrete or mortar and levelling and smoothing of prefabricated elements, concrete and and mortar surfaces must be carried out with one-component, thixotropic, low shrinkage, fiber-reinforced mortar for concrete cosmetic repairs and surface leveling compliant with EN 1504-3 – Class R1 and EN 998-1 –Class GP CSIV Wc2 and according to Principle 3, method 3.1 and 3.3, and Principle 7 methods 7.1 and 7.2 of the EN 1504-9, such as Beyem R1 T, manufactured by Rodacal Beyem Company. Coverage will be  ≈ 1,4 kg / m2 per mm of thickness.

Health and Safety

For further and complete information about the safe use of our product please refer to our latest version of the Safety Data Sheet, which is available upon request.

Disposal of the product and packaging must be in accordance with current legislation. This is responsibility of the final product user.

Certifications

Technical Data Sheet

Safety Data Sheet

Declaration of Performance 1

Declaration of Performance 2

Certificate of Factory Production Control

Certificate of Quality Management System ISO 9001

Certificate of R+D+i Management System UNE 166002

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