1. Sound absorbing sawdust concrete hollow brick TECHBUD CS-24-1-30

    1.1. General characteristics
    1.2. Acoustic characteristics

  2. Sound absorbing sawdust concrete hollow brick TECHBUD CS-24-1-30-T

    2.1. General characteristics
    2.2. Acoustic characteristics

  3. Sound absorbing sawdust concrete slab TECHBUD CS-50-T

3.1. General characteristics
3.2. Acoustic characteristics

  1. Sound absorbing sawdust concrete slab TECHBUD CS-100-OT

    4.1. General characteristics
    4.2. Acoustic characteristics

  2. Acoustic baffle TYPE I

    5.1. General characteristics
    5.2. Acoustic characteristics

  3. Acoustic baffle TYPE II

6.1. General characteristics
6.2. Acoustic characteristics

  1. Acoustic baffle TYPE III

    7.1. General characteristics

    Acoustic baffle type III is built on ground beam foundation (with horizontal insulation) from sound absorbing sawdust concrete hollow bricks TECHBUD CS24-1-30 with two holes, which are filled with cocrete (those holes can be reinforced). After building sound absorbing sawdust concrete panels TECHBUD CS-50-OT are pinned on it, facing the sound source. After intalling the panel set baffle surface is painted twice with a paint gun (polymer-mineral paint) acc. to appropiate graphical design. Coping hollow bricks CS-Z are fixed with cement mortar on the top of baffle screens. The back side of a baffle screen should be plastered and painted or tiled with coloured silica hollow tiles.

     

    Fig. 1. Acoustic baffle TYPE III building method

     

    2. 7.2. Acoustic characteristics

    Baffle acoustic insulation as tested amounts to:

    Rav = 55 dB

    Fig. 2. Location of observation points O1 and O2 in relation to which comparative evaluation of baffle efficiency was conducted

    Acoustic efficiency is presented in the table below:

     
 
  1. Acoustic baffle TYPE IV

    8.1. General characteristics
    8.2. Acoustic characteristics

  2. Acoustic baffle TYPE V

    9.1. General characteristics
    9.2. Acoustic characteristics

  3. Acoustic baffle TYPE VI

    10.1. General characteristics
    10.2. Acoustic characteristics
    10.3. Assembly
    10.4. Advantages