FR2280780A1 - Reinforced concrete structures for strong rooms - incorporating polypropylene fibres to modulate shock propagation - Google Patents

Reinforced concrete structures for strong rooms - incorporating polypropylene fibres to modulate shock propagation

Info

Publication number
FR2280780A1
FR2280780A1 FR7426774A FR7426774A FR2280780A1 FR 2280780 A1 FR2280780 A1 FR 2280780A1 FR 7426774 A FR7426774 A FR 7426774A FR 7426774 A FR7426774 A FR 7426774A FR 2280780 A1 FR2280780 A1 FR 2280780A1
Authority
FR
France
Prior art keywords
polypropylene fibres
concrete structures
modulate
concrete
reinforced concrete
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7426774A
Other languages
French (fr)
Other versions
FR2280780B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gunnebo UK Ltd
Original Assignee
Chubb and Sons Lock and Safe Co Ltd
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 Chubb and Sons Lock and Safe Co Ltd filed Critical Chubb and Sons Lock and Safe Co Ltd
Priority to FR7426774A priority Critical patent/FR2280780A1/en
Publication of FR2280780A1 publication Critical patent/FR2280780A1/en
Application granted granted Critical
Publication of FR2280780B3 publication Critical patent/FR2280780B3/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/02—Details
    • E05G1/024—Wall or panel structure

Abstract

Concrete structures reinforced with a matrix of horizontal and vertical metal rods and with helically twisted strips of metallic mesh, where the matrix concrete is laid up in thoroughly consolidated layers which incorporate polypropylene fibres, is used in the construction of strong rooms, fortifications etc. at risk from mechanical, thermal or explosive assault. Presence of polypropylene fibres modifies the shockwave propagation characteristics of the concrete to better match the characteristics of the metal components, to reduce the risk of out-of-phase shock propagation generating sufficient interfacial tension to separate the components and induce large scale cracking.
FR7426774A 1974-08-01 1974-08-01 Reinforced concrete structures for strong rooms - incorporating polypropylene fibres to modulate shock propagation Granted FR2280780A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7426774A FR2280780A1 (en) 1974-08-01 1974-08-01 Reinforced concrete structures for strong rooms - incorporating polypropylene fibres to modulate shock propagation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7426774A FR2280780A1 (en) 1974-08-01 1974-08-01 Reinforced concrete structures for strong rooms - incorporating polypropylene fibres to modulate shock propagation

Publications (2)

Publication Number Publication Date
FR2280780A1 true FR2280780A1 (en) 1976-02-27
FR2280780B3 FR2280780B3 (en) 1977-06-03

Family

ID=9141990

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7426774A Granted FR2280780A1 (en) 1974-08-01 1974-08-01 Reinforced concrete structures for strong rooms - incorporating polypropylene fibres to modulate shock propagation

Country Status (1)

Country Link
FR (1) FR2280780A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998030769A1 (en) * 1997-01-13 1998-07-16 Aalborg Portland A/S Hard impact resistant composite
US6358603B1 (en) 1997-01-13 2002-03-19 Aalborg Portland A/S Hard impact resistant composite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998030769A1 (en) * 1997-01-13 1998-07-16 Aalborg Portland A/S Hard impact resistant composite
US6358603B1 (en) 1997-01-13 2002-03-19 Aalborg Portland A/S Hard impact resistant composite

Also Published As

Publication number Publication date
FR2280780B3 (en) 1977-06-03

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