Stravibase Mat

Resilient Raft Foundation

Stravibase Mat* is a resilient continuous supporting bearing system specially designed for raft foundations to protect the building from external vibrations generated especially by external nearby transport infrastructures.

 

Stravibase Mat is available in a wide range of thicknesses for different isolation performances to meet natural frequencies as low as 10 Hz.

Main Benefits

 

  • Available in different grades and shapes for a correct load tuning.

  • High resistance to the imposed actions during the installation and concrete pouring operations

  • Special shaped surface to reach high dynamic performances

  • Adaptable stiffness according to the applied loads

  • Stable long-term stiffness and dynamic performance

  • Low water absorption

  • High resistance to external factors as alkaline water (wet concrete)

  • Low creep behavior

  • Easy and quick installation

 

Design Requirements

 

  • Natural frequency required

  • Isolation performance to be achieved

  • Working dead and live loads

  • Lateral and turning forces

  • Available areas

  • Lateral walls in the building perimeter

 

*Previously known as CDM-RAFT

  • Information Available to Download

Case Studies

  • NEUGRAF (exterior)

    NEUGRAF - Nová Grafická

    With public transport nearby, a Stravibase Mat resilient continuous load-bearing system was installed to shield the NEUGRAF - Nová Grafická building in Prague.

  • Shuttle Parking & Galleria Office Building (exterior)

    Shuttle Parking

    To limit the propagation of ground-borne noise and vibrations from the adjacent tracks to the new Galleria Office Building, a Stravibase Raft solution is used.

  • Berckelbosch 5D (architectural rendering)

    Berckelbosch 5D

    Precompressed Stravibase SpringBox bearings and a Stravibase Mat solution protect the housing units against vibrations coming from the nearby factory site.

  • PS IS 314Q (exterior)

    PS IS 314Q

    Stravibase Mat, a resilient and continuous support bearing system protects PS IS 314Q, an elementary and intermediate school from structure-borne noise.