ABS West supplies Regupol® and Regufoam® products, which are suitable for decoupling building foundations, for protection against vibrations of buildings near underground and subway tunnels, for vibration dampening in railway construction, along with passive and active insulation of facility-engineering plants and machines. The physical properties of Regupol® and Regufoam® have been independently tested to provide all planners with the comprehensive information they require in order to select the most suitable insulation.
Vibration Isolation of Machine Foundations
Unwanted vibrations and shock impact occur in nearly all technical equipment and machinery - but elastic bedding with the well-known materials Regupol® and Regufoam® reliably prevent the distribution of these vibration forces.
The material Regupol® is composed of rubber fibres, rubber granulates (SBR, NBR) and polyurethane foam. The most important measure for reducing the vibration impact of machinery in a building structure and its surroundings, is the elastic decoupling of the machine foundations.
Active and Passive
We distinguish between "active" and "passive" vibration isolation. In active isolation, the spread of vibrations is protected against ambient vibrations. Generally speaking, active isolation sensitive equipment is protected against ambient variations. Active isolation of the source is generally the preferred solution, as this measure can protect larger impact areas and thus several objects.
Regupol® and Regufoam® are subdivided into 8 or 12 load ranges each. As a consequence, they can cover a broad spectrum of vibration-technology-related applications. Thanks to the rigidities of the selected materials, the settlement behaviours is the same for nearly all types.
Vibration Isolation of Buildings
The objectives of the vibration isolation of buildings are
- Health protection
- Protection of the building fabric
- Protection of the technical equipment inside the building
The vibrations which are caused by the source of shock may spread throughout the building structure: they are perceived as noticeable vibrations, they can spread as secondary airborne sound and ultimately, they can damage the building structure. Specifically in areas with a dense infrastructure, these are typically vibration emissions from above or below ground railway lines and from industrial plants. In addition, the function of machines and measuring equipment in the building may be impaired.
The materials made from Regupol® and Regufoam® have been developed to isolate vibrations. Numerous building foundations have already been isolated successfully against vibration impact, using these products. The vibration isolation of buildings achieved through the use of Regupol® and Regufoam® remains at a constantly high level for the long term. It has been possible to document the isolating effects of structures through control measurements after their completion and after ten years of use.
Light Mass-Spring Systems - Reliable Protection from Ground-Borne Vibration
Tramways and light-rail systems produce vibrations that can be transmitted via the ground into buildings. In the surrounding buildings these vibrations are felt as shaking and secondary airborne sound.
In densely built-up inner city areas, light railways are usually critical in terms of secondary airborne sound. In the case of construction without elastic mounting, the secondary airborne sound levels are often above the indicated guideline values of the technical directives governing noise. Therefore it is standard practice today for new construction to be carried out using vibration-reducing methods.
From an engineering and acoustic point of view, the most suitable solution is the light mass spring-system (LMSS) in combination with the elastic material Regupol®. Regupol® is characterised in particular by its extreme durability. Even after many years of use, the vibration dampening properties of the material is preserved. This has already been proven in various projects.
Regupol®, is resistant to damp. Due to the drainage properties, larger quantities of water can be removed under the mat.
During concreting, the elastomer mat acts as a "lost shutter". This makes for a rapid and secure method of construction. in contrast to other forms of construction with an elastic separation layer, the light mass-spring system can be used continuously in areas with points. The transition between different elastic mountings can be bridged by using various mat types with defined deflection.
Operational safety requirements are met by a light mass-spring system as impermissible gauge expansion cannot occur due to the elastic mounting. Deflections under the relevant loadings are precisely defined and can be determined and adjusted for each type of use.