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Masonry reinforcement FAQ

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1. Why should I add masonry reinforcement? 

2. Can I use any type of reinforcement to any type of masonry?

3. How do I adjust Murfor® Compact to the wall width? 

4. How do I apply Murfor® Compact? 

5. For what applications can I use Murfor® Compact I ? 

   5.1 stress concentrations

   5.2 Long walls 

   5.3 Point loads 

   5.4 Partition walls susceptible to deformation

   5.5 Stack bonded masonry

   5.6 Corner and T-connections

   5.7 Laterally loaded wall panels

6. For what applications can I use Murfor® Compact E?

   6.1 Stress concentrations 

   6.2 Long walls 

   6.3 Gables 

   6.4 Differential settlements 

   6.5 Facade support  

   6.6 Stack bonded masonry

   6.7 Laterally loaded wall panels

   6.8 Masonry beam design 

   6.9 Claustra masonry 

7. How do I anchor the masonry? 

8. How do I place the water retaining membrane?

9. Is Murfor® Compact ETA certified? 

Answers

1. Why should I add masonry reinforcement?

Masonry has high compressive strength and low tensile strength. Adding reinforcement enhances the structural performance and strength of the masonry by increasing its in- and out-plane capacities. This increases crack control in the structure. 
Reinforcement benefits both structural and traditional masonry. 


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2. Can I use any type of reinforcement to any type of masonry?

Any reinforcement is better than no reinforcement. However, if your masonry is to last at least a couple of decades it is important to choose a type of masonry reinforcement that is adapted to the environment in which the structure is located and the materials from which it is build.  

Bekaert offers two types of Murfor® Compact: 

  • Murfor® Compact I for use in a dry environment (MX1). 
  • Murfor® Compact E for masonry exposed to a damp environment (MX3 and MX4).


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3. How do I adjust Murfor® Compact to the width of the wall?

Murfor® Compact is available in two convenient widths that can be matched to any brick width. Contact us for more detailed information. 

Murfor® Compact I

Murfor® Compact I-50

Murfor® Compact I-50

Mesh of 7 steel cords

Murfor® Compact I-100

Murfor® Compact I-100

Mesh of 14 steel cords

Murfor® Compact E

Murfor® Compact I-35

Murfor® Compact I-35

Mesh of 7 stainless steel cords

Murfor® Compact E-70

Murfor® Compact E-70

Mesh of 14 stainless steel cords

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4. How do I apply Murfor® Compact?

Apply Murfor® Compact to the blocks

Apply Murfor® Compact to the blocks

Apply a layer of mortar.

Apply a layer of mortar.

Put the blocks in place.

Put the blocks in place.

Use a minimum overlap of 500 mm.

Alternate the alignment of the overlaps

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5. For what applications can I use Murfor® Compact I?

5.1 Stress concentrations

Stress concentrations around window openings can be absorbed by applying two layers of Murfor® Compact I above and below the window.

With two layers of Murfor® Compact I

Without two layers of Murfor® Compact I

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5.2 Long walls

Shrinkage or expansion of materials can lead to cracks in the masonry. Murfor® Compact I allows for larger gaps between movement joints.

With Murfor® Compact I

With Murfor® Compact I

Without Murfor® Compact I

Without Murfor® Compact I

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5.3 Point loads

Point loads, e.g., ball joints, are highly concentrated loads that cause tensile stress and cracks in the masonry. Using a concrete beam as support interferes with the homogeneous character of the masonry. 

Depending on the volume of the load, three to five of the underlying joints can be reinforced with Murfor® Compact I. The reinforcement ensures the even distribution of the load. It is important to check that the contact stress between the point load and the masonry is smaller than or equal to the calculated value of the compressive strength of the masonry. 

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5.4 Partition walls susceptible to deformation

Partition walls on a floor plate will start to crack in different places where there is too much sagging. To prevent this, you can reinforce and isolate the wall from the support with Murfor® Compact I.

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5.5 Stack bonded masonry

Murfor® Compact I guarantees stability of the masonry with and without a stack bond. For masonry with a stack bond, the bricks are placed directly above each other, meaning reinforcement is essential for wall stability. With masonry without overlaps, reinforcement is required to compensate for insufficient bending bonding.

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5.6 Corner and T-connections

Murfor® Compact I reinforcement, combined with Murfor® EFC/Z wall angle elements provide the perfect corner connection. Finish corners with 140 mm wide blocks with Murfor® Compact I-100. Corners with 200 mm wide blocks should be finished with 2 x Murfor® Compact I-50.

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5.7 Laterally loaded wall panels

Wind loaded walls Murfor® Compact allows longer or thinner wall partitions that can withstand high wind loads. Retaining walls Cellar walls, retaining walls or silo walls are exposed to considerable stresses from lateral loading. Murfor® Compact increases the loading capacity of the wall span between the columns.

 

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6. For what applications can I use Murfor® Compact E?

6.1 Stress concentrations

Murfor® Compact E provides additional reinforcement in places with high stress concentration: 

  • With level differences
  • At the wall base 
  • Above window and door opening
  • Under window sills Murfor® Compact E

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6.2 Long walls

Shrinkage or expansion of materials can lead to cracks in the masonry. Murfor® Compact E allows for larger gaps between movement joints. These larger distances depend on: 

  • Type and color of the facing brick
  • Type of mortar or glue
  • Type of joint 
  • Age of the bricks
  • Orientation 
  • Temperature at implementation
  • Type of obstacle

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6.3 Gables

Improve the stability of gables by reinforcing a joint every 300 mm with Murfor® Compact E. If the gables are more than 8 m high it is recommended to reinforce every 200 mm with Murfor® Compact E. Always take the recommendations for long walls into account.

 

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6.4 Differential settlements

Masonry on partly hardened soil or uneven terrain is susceptible to deformations and stresses. This is why it is recommended to reinforce the masonry.

Recommended reinforcement: 

  • Reinforce the first 5 joints and foundation with Murfor® Compact E. 
  • Reinforce masonry located higher up every 400 mm

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6.5 Facade support

Prevent cracks by reinforcing one or two joints above the facade support with Murfor® Compact E.

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6.6 Stack bonded masonry

Reinforce the masonry every 300 mm with Murfor® Compact E to compensate the insufficient bonding in stacked masonry.

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6.7 Laterally loaded wall panels

Murfor® Compact allows longer or thinner wall partitions that can withstand high wind loads.

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6.8 Masonry beam design

Masonry beams with Murfor® Compact E absorb the bending moments over windows and doors. They can be used with soldier- or stretcher course. 

Note:

  • These beams are only suitable for non-bearing masonry, using normal masonry bonding. 
  • The mortar quality requires minimal compressive strength of M5 and a minimal bond strength of 0.20 N/mm².

Soldier course

Soldier course

Stretcher course

Stretcher course

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6.9 Claustra masonry

Murfor® Compact E is available in different widths and it is extremely flexible in use, which means that it is the perfect reinforcement for claustra masonry.

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7. How do I anchor the masonry?

  • Create an anchor of at least 50 cm long.
  • Apply at least 15 mm of mortar below and on top of Murfor® Compact when placing it on the joint.

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8. How do I place the water retaining membrane?

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9. Is Murfor® Compact ETA certified?

Murfor® Compact is ETA 18/0316 certified for structural use, which allows products to achieve CE marking. The CE mark proves that the product is tested and meets the European requirements for safety, health and environmental protection. It applies to products manufactured in the European Economic Area (EEA) and products that are manufactured outside and then marketed in the EEA.

 

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Masonry reinforcement FAQ

  1. About amador school

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    Amador Valley High School is a public school in Pleasanton, California, a city east of San Francisco. Amador Valley is one of three high schools in the Pleasanton Unified School District, which includes Foothill High School and Village High School. The school was founded as Amador Valley Joint Union High School and opened in 1922. 

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  2. Accurate dosing of multiple injections

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    • Desired spring property: Risidue-free
    • Wire characteristic: Effective cleaning of the surface possible

     

     

     

     

     

     

  3. Can Bekaert spring wires be heat-treated?

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    Yes, all our wires can be heat-treated in the spring manufacturing process to achieve the high fatigue performance to guarantee the correct dosing during multiple use and the preservation of the spring strength during the device and drugs lifetime. Additionally, our Bezinal coated wires have improved thermal resistance and can be processed at temperatures of up to 300°C (572°F) without impairing product characteristics.

  4. Can pre-coated Bezinal springs be used in devices in direct contact with the drugs or liquids?

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    No, Bezinal coated spring wires should be used where contact with drugs or liquids is not possible.

  5. Can steel fibers be added to the readymix plant?

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    Yes. Introduce steel fibers after all other ingredients are already in the truck. Set the truck mixer on charging speed and add the fibers slowly into the mixer. Mix for about 5 minutes at charging speed.
    The steel fibers can also be added to the aggregate batch belt, if there is safe access.

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  7. How easily can the Bezinal coated springs be cleaned?

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    Our spring wires for medical application are manufactured in a strictly controlled environment. On request, specific process conditions can be used that enable easy cleaning of contaminants/residues after spring production. During the spring manufacturing process, specific cleaning agents can be used to get to the required cleanliness for medical application.

  8. How much mixing time is required when adding steel fibers to a ready mix truck?

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    Bekaert recommends continuing mixing at the highest drum speed for about 4 to 5 minutes after all steel fibers are added to the truck.

  9. How will steel fibers affect my concrete mix design?

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    A properly designed concrete mix is essential for avoiding fiber balling. In order to avoid the potential for fiber balling related to fibers with a high l/d (aspect) ratio (meaning high performing fibers), glued fiber technology has been developed. Glued fiber bundles will spread the glued bundles evenly on “macro level” and during mixing the bundles separate into individual fibers. In essence the glued bundle temporarily lowers the aspect (l/d) ratio of the fibers for easy mixing. That´s how balling can effectively be avoided and a homogenously mix of high performing steel fiber reinforced concrete can be achieved.

  10. Los filtros de fibra metálica Bekipor® son ideales para aplicaciones DPF y GPF. Estas fibras metálicas muy finas y ligeras (diámetro típico entre 17 y 30 µm) permiten altas porosidades (hasta un 88%) y un rendimiento y durabilidad óptimos del filtro.

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    Los filtros de fibra metálica Bekipor® son ideales para aplicaciones DPF y GPF. Estas fibras metálicas muy finas y ligeras (diámetro típico entre 17 y 30 µm) permiten altas porosidades (hasta un 88%) y un rendimiento y durabilidad óptimos del filtro.

    El uso de Fecralloy® mejora la resistencia a la corrosión y a temperaturas de hasta 1050 ºC.

    Estos filtros flexibles se pueden moldear en diseños ilimitados para su integración en el sistema de escape. Un alto grado de absorción del sonido puede eliminar la necesidad de un silenciador. 

  11. What is product?

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  12. What is the corrosion resistance of Bezinal coated wires?

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    Bekaert has a range of Bezinal coatings that cover a full range of corrosion requirements. We will help you select the optimum coating composition for your specific applications. For some of our Bezinal products, corrosion resistance up to 1000h can be guaranteed, which is in line with the performance requirements of stainless steel. Unlike stainless steels springs, however, there is no risk for crevice corrosion on Bezinal coated wires. The corrosion performance is described in our product leaflets, available via the download section.

  13. What is the elastic modulus of steel spring wires?

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    The theoretical e-modulus of all our steel spring wires is 206 MPa. It is considered to be a constant parameter, though it can be optimized depending on our production process. The final e-modulus can deviate slightly from this value. More information can be shared on request.

  14. What is the maximum stress possible in a spring with a steel spring wire?

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    There is no straightforward answer to this question, as this depends greatly on the spring design, the post-coiling treatments applied, and the expected fatigue and relaxation performance. The Maximal Allowed Shear Stress (N/mm²) is described in EN 13906-1 (for compression springs), EN 13906-2 (for extension springs), EN 13906-3 (for torsion springs). Detailed calculations and modelling on your specific spring design can be provided by the experts at spring manufacturers.

  15. What is the maximum stress possible in a spring with a steel spring wire?

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  16. Where can I find the product characteristics of Bekaert spring wire?

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    The product characteristics can be found in the download section. If you want to know more, please contact us with your queries.

  17. Where can I find the product characteristics of Bekaert spring wire?

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