Rüttelboden
The vibrating floor is a composite of ceramic flooring with the underlying mineral bedding, which can also act as a screed . It is a rationalized form of thick-bed installation . Vibrated floors are often used for the efficient laying of large-area floors in commercial areas and can meet high demands on load-bearing capacity and evenness. The vibrating floor is laid using the so-called vibrating method. Because they are laid in a bond, vibrated floors have a high shear strength . Vibrated floors can be loaded earlier than the ceramic coverings usually laid on screed and in a thin bed today. Vibrated floors are less suitable for floor coverings with special geometric laying or joint cuts through several rooms, etc.
Vibrating floors are used, among other things, in vehicle workshops, fire and rescue stations, wholesale and retail objects, the chemical industry, all kinds of factories and production facilities.
origin
In the 1960s, Alfred Rominger developed the vibration method as a mechanical variant of thick-bed laying, which is the traditional method of laying ceramic tiles , slabs, natural and artificial stone coverings . In the course of time, the vibratable slab formats were enlarged and the screed recipes improved (through higher cement content).
Description of the procedure
A lean, earth-moist cement screed of at least 45 mm is applied to a concrete base . A contact layer of cement is applied to the screed and moistened. This causes the bond between the screed and the ceramic cladding. A suitable ceramic covering is placed on the contact layer. Depending on the type of construction, expansion joints are to be arranged in the covering.
The panels are vibrated into the mortar bed with a plank or roller vibrator. The vibrating machines are based on oscillation or vibration motors with frequencies of 1,500 Hertz . The motor rests on a plastic plate (screed vibrator) or several hard plastic rollers (roller vibrator).
The gaps are grouted by applying a mineral cement- based grout in the form of thin- bodied cement slurry to the floor. Mineral efflorescence that occurs during the hardening process is removed with acidic cleaning agents.
The vibrating floor normally has to harden for 28 days before it can be fully loaded. The area can usually be inspected after a week.
Thanks to the further development of the recipes for the laying mortar, the addition of special epoxy resin emulsions now enables the curing times to be reliably reduced to 7 days. This is required more and more frequently, especially in the context of renovation measures.
Suitable ceramic
In the initial phase, only relatively small plate formats up to approx. 20 × 20 cm considered suitable for laying using the vibration method. Due to constant further development, large-format tiles with formats> 60 × 60 cm are now also suitable for laying using the vibration method. The ceramic cladding should continue to be sharp-edged, with bevels or spacers. The panels should comply with DIN 18158 “solid clinker panels ” or EN DIN EN Iso 14411 “fine stoneware panels ” and be at least 12 mm thick. Heavy loads may require thicker panels.
Guidelines
The laying of vibrated floors is not specified in standards. However, there are various guidelines for the production of ceramic floor coverings using the vibration method, published by the associations:
- Working group quality assurance for vibrating surfaces (AKQR),
- Interest group Rüttelboden,
- Competence group ceramic system floors.
The "Installation regulations and test instructions for ceramic floor coverings using the vibration method" of the Rüttelboden interest group are the only ones to be updated annually.
The test of the adhesive tensile strength of the ceramic cladding on the laying mortar, as an important quality feature, is determined due to the special characteristics of the vibration process on the basis of the "Leaflet for testing the adhesive tensile strength in vibrated flooring" of the Rüttelboden interest group.
Web links
Individual evidence
- ↑ AKQR [1]
- ↑ IG-Rüttelboden installation regulations and test instructions for ceramic floor coverings using the vibration method, edition 2016 (replaces the 2011 edition) , publisher of the Rüttelböden community of interests
- ↑ [download.contec-aps.com/uploads/tx_mpdownloadcenter/KKS_Verlegerichtline_Ausgabe_Juni_2014.pdf Installation guidelines for the production of ceramic vibrating system floors], as of June 2014