SOUND BARRIER Russian patent published in 2017 - IPC E01F8/00 

FIELD: construction.

SUBSTANCE: sound barrier contains a foundation, plinth part, bearing base in the form of transverse struts and longitudinal profiles, a sound-reflecting back panel, sound-transparent front panel and sound-absorbing panels. The sound-absorbing panels are designed as separate blocked container-type modules container type structural modules presented by body cavitary containers of automobile storage batteries with dismantled covers and elastic sound-absorbing membranes mounted on the battery necks. The cavitary bodies are filled with a porous sound-absorbing material presented in the form of separate crushed fragmented sound-absorbing elements shaped in monolithic porous sound-absorbing structures using respective adhesive agents and/or sound-transparent shells to form sound tablet absorbers. The separate body modules are mounted in separate compartments of the bearing base. The sound-absorbing elements are made of recyclable sound-absorbing porous aerated fibrous and/or open-pore foamed sound-absorbing materials, and/or nonairated nonporous dense fibrous materials and/or foamed close-pore polymeric materials, and/or other types of nonaerated nonporous dense polymer materials presented by solid recyclable wastes. The necks of the modules are covered with an elastic sound-absorbing membrane.

EFFECT: increased acoustic efficiency.

15 cl, 46 dwg