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
    7.2. Acoustic characteristics

    1. Acoustic baffle TYPE IV

      8.1. General characteristics

      Acoustic baffle type IV is built on foundation (with horizontal insulation) from sound absorbing sawdust concrete hollow bricks TECHBUD CS24-1-30-T with two holes, which are filled with cocrete (those holes can be reinforced) as well as from hollow bricks CS-24-1-30-T/W – depending on the need (they can be reinforced horizontally). After building the whole baffle screen its surface is painted twice with a paint gun (polymer-mineral paint) acc. to appropiate graphical design. On the top part of the screen acrylic glass panel PARAGLAS 7 mm grain can be glued, or, as in option II, coping hollow bricks CS-Z are fixed with cement mortar. The back side of a baffle screen should be tiled with coloured silica hollow tiles (glued), or plastered and painted.

       

      Fig. 1. Acoustic baffle TYPE IV building method

       

      2. 8.2. 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 V

    9.1. General characteristics
    9.2. Acoustic characteristics

  2. Acoustic baffle TYPE VI

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