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You are here: Home1 / The SL-deck2 / Benefits and solutions3 / Improved sound insulation

Higher sound reduction

Better sound insulation has traditionally been a question of increasing the mass/weight of the construction. With the SL-deck it is possible to make a very sound insulating stucture with a deck thickness of just 22 cm and a weight of 375 kg/m2.

The SL-Decks high level of sound insulation is due to two primary factors:

Reasons for SL-deck’s improved sound properties

Effects of internal arches

Arches are stiffer than a flat plate, thus creating higher eigenfrequencies, which is beneficial as the most difficult eigenfreqencies to reduce lie in the low end of the spectrum. In the SL-Deck, the self-compacting concrete is constructed as a series of arches over the lightweight blocks and thus contribute to the high level of sound insulation.

Combination of materials

Ordinary self-compacting concrete and lightweight concrete have different eigenfrequencies. When sound is transmitted, the two types of concrete in the SL-Deck thus vibrate differently. This means that a part of the sound waves are converted to heat instead of passing through the deck.

Sound test

The SL-deck’s sound insulation properties have been tested by accredited test institute DELTA according EN ISO 717-2:2013 with the following results:

.

SL18 (180mm)

Impact sound transmission: L’n,w (CI) = 79 (-13) dB

Airborne sound insulation: R’w (C; Ctr) = 54 (-1; -6) dB

Download SL18 test report

SL22 (220mm)

Impact sound transmission: L’n,w (CI) = 77 (-14) dB

Airborne sound insulation: R’w (C; Ctr) = 57 (-1; -6) dB

Download SL22 test report

Video summary of SL-deck sound test

Watch the sound test of the SL-deck below.

Benefits

  • Super-wide slabs
  • Double-long slabs
  • Flexible slab geometry
  • Long spans
  • Cast-in solutions
  • Cast-in edge reinforcement
  • Bathroom slabs
  • Improved sound insulation
  • 4-hours fire resistance
  • Solid zones
  • Balconies and cantilvering
  • Blade connections
  • Concealed joints solution

The SL-Deck

  • Super-wide slabs
  • Double-long slabs
  • Flexible slab geometry
  • Long spans
  • Cast-in solutions
  • Cast-in edge reinforcement
  • Bathroom slabs
  • Improved sound insulation
  • 4-hours fire resistance
  • Solid zones
  • Balconies and cantilvering
  • Blade connections
  • Concealed joints solution

Benefits

  • Super-wide slabs
  • Double-long slabs
  • Flexible slab geometry
  • Long spans
  • Cast-in solutions
  • Cast-in edge reinforcement
  • Bathroom slabs
  • Improved sound insulation
  • 4-hours fire resistance
  • Solid zones
  • Balconies and cantilvering
  • Blade connections
  • Concealed joints solution

About Abeo

  • Company profile
  • News
  • Newsletter
  • Contact

Abeo | Beredskabsvej 12 | DK-2640 Hedehusene | +45 71 99 09 76 | info@abeo.dk | CVR 37760358

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