PT91087A - ABSORBENT ACOUSTIC PANEL - Google Patents

ABSORBENT ACOUSTIC PANEL

Info

Publication number
PT91087A
PT91087A PT91087A PT9108789A PT91087A PT 91087 A PT91087 A PT 91087A PT 91087 A PT91087 A PT 91087A PT 9108789 A PT9108789 A PT 9108789A PT 91087 A PT91087 A PT 91087A
Authority
PT
Portugal
Prior art keywords
acoustic panel
sound
layer
absorbent acoustic
mineral
Prior art date
Application number
PT91087A
Other languages
Portuguese (pt)
Other versions
PT91087B (en
Inventor
Robert Aiello
Original Assignee
Sogea
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sogea filed Critical Sogea
Publication of PT91087A publication Critical patent/PT91087A/en
Publication of PT91087B publication Critical patent/PT91087B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers

Abstract

The sound-absorbing screen according to the invention is of the type consisting of a composite panel which has a layer of mineral absorbant (1) and a layer of mineral product (2) which is transparent to sound, the latter being a coating of resin mortar which has a proportion of gaps (7) of between 30 and 50 %. Application to protection against noise along roads or railways. <IMAGE>
PT91087A 1988-07-07 1989-07-06 ABSORBENT ACOUSTIC PANEL PT91087B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8809433A FR2633953B1 (en) 1988-07-07 1988-07-07 ABSORBENT ACOUSTIC SCREEN

Publications (2)

Publication Number Publication Date
PT91087A true PT91087A (en) 1990-02-08
PT91087B PT91087B (en) 1995-07-03

Family

ID=9368339

Family Applications (1)

Application Number Title Priority Date Filing Date
PT91087A PT91087B (en) 1988-07-07 1989-07-06 ABSORBENT ACOUSTIC PANEL

Country Status (5)

Country Link
EP (1) EP0350420B1 (en)
AT (1) ATE100162T1 (en)
DE (1) DE68912219D1 (en)
FR (1) FR2633953B1 (en)
PT (1) PT91087B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729682A1 (en) * 1995-01-20 1996-07-26 Spie Citra Acoustic sound absorbing screens for motorways

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7513194U (en) * 1975-09-04 Beton Und Monierbau Ag Pre-fabricated part for a protective wall against noise immissions
AT363507B (en) * 1976-01-14 1981-08-10 Kranebitter Ges M B H Betonwer AREA SOUND PROTECTIVE ELEMENT
DE2951027C2 (en) * 1979-12-19 1982-02-18 Albert 4270 Dorsten Stewing Wall element for a noise barrier
DE8231009U1 (en) * 1982-11-05 1983-02-17 Schulz, Herbert, 4000 Düsseldorf NOISE PROTECTION WALL
DE8316339U1 (en) * 1983-06-03 1983-11-17 Lemmen, Bernward, 5000 Köln Noise barrier
DE3338303A1 (en) * 1983-10-21 1985-05-02 Ed. Züblin AG, 7000 Stuttgart Sound-absorbing structural member for soundproofing walls on bridges

Also Published As

Publication number Publication date
EP0350420B1 (en) 1994-01-12
PT91087B (en) 1995-07-03
FR2633953A1 (en) 1990-01-12
ATE100162T1 (en) 1994-01-15
EP0350420A1 (en) 1990-01-10
DE68912219D1 (en) 1994-02-24
FR2633953B1 (en) 1992-01-17

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Legal Events

Date Code Title Description
MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19970731