WO2004113821A1 - Ensemble de renfort pour materiaux matriciels - Google Patents

Ensemble de renfort pour materiaux matriciels Download PDF

Info

Publication number
WO2004113821A1
WO2004113821A1 PCT/EP2004/006540 EP2004006540W WO2004113821A1 WO 2004113821 A1 WO2004113821 A1 WO 2004113821A1 EP 2004006540 W EP2004006540 W EP 2004006540W WO 2004113821 A1 WO2004113821 A1 WO 2004113821A1
Authority
WO
WIPO (PCT)
Prior art keywords
rods
rod assembly
rod
embedded
matrix material
Prior art date
Application number
PCT/EP2004/006540
Other languages
English (en)
Inventor
Jacob Foldager
Else Lawrence
Original Assignee
Composhield A/S
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 Composhield A/S filed Critical Composhield A/S
Priority to US10/560,781 priority Critical patent/US20060225376A1/en
Priority to EP04739999A priority patent/EP1636539A1/fr
Publication of WO2004113821A1 publication Critical patent/WO2004113821A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
    • E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix

Definitions

  • This invention relates to an assembly of interlaced rods, suitable for use as embedded reinforcement in matrix materials such as cementitious, ceramic and synthetic resin matrices.
  • the reinforced matrix is for use in blast and/or ballistic (i.e. projectile) impact resistant barrier structures, for example for use in battle zones or in locations near explosive hazard sites, or for secure containment, it is important that the reinforcement should contribute to dispersal of impact forces through the matrix away from the impact site, and hinder projectile penetration of the matrix.
  • ballistic i.e. projectile
  • Cementitious and ceramic matrices tend to be heavy, and are even heavier with embedded steel reinforcement. This is a disadvantage when the reinforced matrix material is intended to be portable or easily handled, for example in the form of reinforced panels for use as construction elements of strong and/or impact resistant structures. In such circumstances, it would be desirable to use lighter matrix materials such as synthetic resins.
  • resin matrices offer poorer resistance to projectile impact than ceramics and cement-based materials, so the reinforcement used with resin matrices needs to be particularly effective to compensate. Using a higher proportion of steel reinforcement would be one way to achieve this, but that would negate the weight saving gained by using the resin matrix.
  • the present invention makes available such a reinforcement assembly, and shaped structures such as panels incorporating the assembly.
  • an assembly of interlaced rods suitable for use as embedded reinforcement in matrix materials, comprising first, second and third layers of rods, the rods of each layer being orientated generally parallel to one another, the second layer being located between the first and third layers, the rods of the first and third layers being longitudinally orientated in the same direction, with those of the second layer being longitudinally orientated generally at right angles thereto, the rods of the first and third layers being paired such that each nth rod of the first layer, herein designated rod ni, is paired with the nth rod of the third layer, herein designated rod n 3 , paired rods of the first and third layers being drawn together under tension by a flexible filament wound between them in a series of runs spaced along the length of the rods of the first and third layers, each such run extending transversely to the longitudinal orientation of the rods, rods of the second layer being located generally parallel to and between adjacent transverse runs of filament, each such transverse run of filament comprising a forward
  • each pair of rods ni and n 3 in the first and third layers is enclosed by and drawn together by a loop of filament formed by the forward and reverse winding patterns.
  • the sinusoidal winding of filament which ties together the rods of the first and second layer may be performed manually but, being of a simple repeating pattern, it is easily adapted for implementation by machine.
  • the layered rod arrangement and the filament winding pattern cooperate to make the assembly of the invention a particularly suitable reinforcement for matrix materials intended to defend against blast and impact resistance. Between any adjacent pair of transverse runs of filament there may be a single rod of the second layer, or a plurality of rods of the second layer.
  • Each transverse run may be formed by one continuously wound filament, and in one embodiment all the transverse runs are formed by one and the same continuously wound filament.
  • the rod assembly will initially be assembled in a rectangular or square panel format, but by suitable selection of rod lengths and relative placement for filament interlacing, many alternative polygonal panel formats are also accessible, such as hexagonal and triangular arrangements. It is also possible to embed a rectangular or square rod assembly in a suitable matrix material, such as a synthetic resin (as discussed below) and, after hardening, to cut a section of any desired shape from the resultant embedded assembly using a laser cutter, for example. Where the resin-embedded rod assembly is faced with additional armour (again as discussed below), for example ceramic or metal plate armour, a laser cutter could also be used to cut a desired panel shape from the total assembly.
  • a suitable matrix material such as a synthetic resin (as discussed below)
  • a laser cutter could also be used to cut a desired panel shape from the total assembly.
  • the filament may be in the form of a wire, a monofilament, or a multifilament string or rope, and the filament may comprise metal, for example steel, synthetic polymer, for example polypropylene or aramid resins, or carbon fibre. Rods of two or more material types may be present in the assembly, if desired.
  • the rods of the assembly may be of metal, for example steel, or of fibre-filled resin wherein the fibres may be, for example synthetic polymer, glass, steel or carbon.
  • the rod assembly of the invention is primarily intended to be embedded in matrix material as reinforcement. In that case, it will normally be completely embedded, but assemblies which are partially embedded, or surface exposed, are not excluded.
  • the assembly may find applications which do not involve embedding in matrix material, for example in the construction of retaining walls for groundworks, to minimise earth or land slippage.
  • the matrix material including a rod assembly of the invention may be formed into a shaped article, for example a panel, if necessary by cutting the desired shaped panel from an initial matrix material-embedded blank.
  • the rod assembly of the invention may be embedded in any desired matrix material, but cementitious, ceramic and synthetic polymers will usually be the most common materials. Of those, the assembly offers distinct impact resistance advantages when embedded in synthetic polymer matrices, and also lightweight advantages when the rods are of fibre filled resin.
  • the rod assembly may be embedded in matrix mate ⁇ al and additional reinforcement ion the form of additional plate or rod reinforcement may also be embedded or partially embedded therein in spaced or contiguous layered relationship to the rod assembly.
  • a rod assembly of the invention may be embedded in synthetic resin matrix, and armour plate may be positioned on one or both sides of the rod assembly, either totally or partially embedded in the matrix.
  • the rod assembly is embedded as reinforcement in a panel of matrix material
  • a flexible sheet mate ⁇ al for example a woven aramid mat, embedded or partially embedded in the matrix in spaced or contiguous layered relationship to the rod assembly.
  • the panel may then be positioned with the sheet on the side opposite to that from which impact is anticipated, and the sheet acts as an anti-spalling element, reducing the risk of damage due to fragments of the matrix material flying off the panel after frontal impact.
  • the rod assembly embedded in matrix material may be laminated as a backing to blast- or ballistic impact-resistant armour, for example armour plate or armour comprising an array of contiguous cells filled with matrix material, for example a honeycomb structure of steel walled cells mounted on a backing plate, the cells being filled with hard cementitious, ceramic or resin matrix material, often including a high loading of fibres of synthetic resin, steel, glass or carbon.
  • armour plate or armour comprising an array of contiguous cells filled with matrix material, for example a honeycomb structure of steel walled cells mounted on a backing plate, the cells being filled with hard cementitious, ceramic or resin matrix material, often including a high loading of fibres of synthetic resin, steel, glass or carbon.
  • the rod assembly embedded in matrix material may be laminated to a backing mass which crushes or deforms progressively under impact, for example a cellular or foamed material. With the reinforced matrix facing the direction of impact, it may then absorb much of the impact force, and the remainder being attenuated by the crushable or deformable backing mass.
  • Fig.1 illustrates a simple rod assembly in accordance with the invention.
  • Fig 2 illustrates the rod assembly of Fig. 1 viewed in cross section in the direction of arrow A of Fig.1 , showing the forward and reverse winding pattern of the first run of filament.
  • Fig 3 illustrates in cross section a panel of matrix material in which is embedded a rod assembly in accordance with the invention, the panel including an embedded layer of sheet material, and being bonded to an armour plate.
  • Fig 4. illustrates a form of armour plate which may be substituted for that of Fig 3, in the form of an array of contiguous cells filled with hard matrix material.
  • Fig 5. illustrates in cross section a panel of matrix material in which is embedded a rod assembly in accordance with the invention, the panel being laminated to a crushable cellular backing mass.
  • simple rod assembly of the invention is shown.
  • the assembly is shown as having only three rods 1 -1, 2 ⁇ and 3 ⁇ in a first layer, paired with three rods in a third layer 1 3 , 2 3 , and 3 3 , the rods of those layers being orientated generally parallel to one another.
  • a second layer of two rods ' 2 ⁇ and 2 2 is located between the first and third layers.
  • Rods (1 ⁇ , 2 ⁇ , 3 ⁇ ) and (1 3 , 2 3 , 3 3 ) of the first and third layers respectively are longitudinally orientated in the same direction, and rods 2 ⁇ , 2 2 ) of the second layer are longitudinally orientated generally at right angles thereto.
  • the rods may be of any material consistent with the reinforcement properties expected of the assembly.
  • Rod 1 ⁇ is drawn together under tension with rod 3- ⁇ , 2-i with 2 3 , and 3 ⁇ with 3 3 by a flexible filament, for example a multifilament string of aramid fibre, wound between them in a series of three runs r1 , r2 and r3 extending transversely to the longitudinal orientation of rods (1 ⁇ , 2 ⁇ , 3 ⁇ ) and (1 3 , 2 3 , 3 3 ).
  • Rod 2 ⁇ is parallel to and between runs r1 and r2, and rod 2 2 is parallel to and between runs r2 and r3.
  • the filament is tied and knotted at 4 to rod 1 1 for the start of run r1 , which is created by forward and reverse sinusoidal windings under tension which interlace rods (1 -t, 2 ⁇ , 3-i) and (1 3 , 2 3 , 3 3 ).
  • the forward winding from left to right follows the pattern: rod 1 ⁇ ⁇ 2 3 ⁇ 3 ⁇ and then continues in the reverse right to left winding pattern: 3 3 ⁇ 2 ⁇ ⁇ 1 3 .
  • Paired rods of the first and third layers are encircled and drawn together by the loops of filament formed by the forward and reverse winding patterns.
  • the filament passes over rod 1 2 at 5 for run r2 the forward winding following the pattern 1 3 ⁇ 2 2 ⁇ 3 3 , and the reverse winding following the pattern 3 ⁇ ⁇ 2 3 ⁇ 1 ⁇ . Then the filament passes behind rod 22 at 6 to commence run r3, which follows the forward and reverse winding patterns of run r1. The winding process just described would be continued if there were more rods in the second layer.
  • the effect of drawing together rods (1 1 , 2 ⁇ , 3 ⁇ ) and (1 3 , 2 3 , 3 3 ) by filament runs r1 , r2 and r3 is to trap rods (2 ⁇ , 2 2 ) securely in their position between the first and third layers of rods and individually between adjacent filament runs.
  • the rod assembly described by reference to Figs. 1 and 2 has only three rods in each of the first and third rod layers, and two in the second layer. In practice, many more rods would be present in each layer. Furthermore, In Figs. 1 and 2 only one rod of the second layer is positioned between adjacent filament runs r1-r2 and r2-r3, but in other embodiments of the invention it may be preferred to position two or even more second layer rods between some or each pair of adjacent runs.
  • the rod assemblies of the invention may be embedded in matrix material, for example of cementitious, ceramic or synthetic resin materials. Resin materials will often be preferred for their lighter weight.
  • Cementitious matrix materials include the DSP ("Densified systems containing ultrafine Particles") matrix materials disclosed, e.g., in US Patents Nos. 5,234,754 and 4,588,443 which may be based on dense packing of cement particles with ultrafine particles, for example silica fume particles, in interstices between the cement particles.
  • a preferred matrix is made from a mix containing cement particles, ultrafine microsilica particles of a size which is typically about 1/100 of the size of the cement particles, water in a low amount relative to the cement plus microsilica, a concrete superplasticizer as dispersing agent, and silica or carborundum sand, often with added steel fibres.
  • DSP matrices may have compressive strength in the range 200 to 400 MPa, tensile strength in the range 10 to 50 Pa, modulus of elasticity in the range 30 GPa to 100 GPa, and fracture energy in the range 1 KN/m to 100 KN/m.
  • the rod assembly will be embedded by immersing the assembly in the matrix material while in fluid form, and then setting or allowing it to set.
  • Shaped articles may be formed by use of suitable moulds to contain the fluid. matrix material while embedding the assembly and setting.
  • a rod assembly 7 constructed according to the principles illustrated in Figs. 1 and 2 but with many more rods in each of the three layers of Figs 1-3 is shown in cross section, embedded in a matrix material 10 and shaped as a panel of rectangular cross section.
  • a sheet material 11 for example a woven mat of aramid fibre, is embedded in the matrix material close to the back surface of the panel. This is achieved by lining the bottom of the panel mould with the woven mat prior to pouring in the unset fluid resin mix, so that as the resin sets the mat becomes embedded.
  • a steel plate 12 located on the face of the panel. The plate has studs 13 fixed, for example by welding or gluing to the side adjacent the resin matrix.
  • studs serve to anchor the studs in the matrix to improve adhesion between plate and matrix.
  • the plate is simply pressed onto the exposed surface of the resin while still fluid in the panel mould, and becomes firmly fixed as the resin sets.
  • the resultant panel is useful as an element of an armoured protective barrier.
  • the armour plate faces the direction of the impact threat, the rod assembly provides back-up reinforcement of the matrix material on deformation or penetration under impact.
  • the sheet material 11 serves as an anti-spalling guard to contain fragmentation from the rear face of the panel under such deformation or projectile impact.
  • Fig. 4 shows part of a blast- or ballistic impact-resistant armour plate comprising contiguous cells 15 filled with hard matrix material 16, the cells being defined by containing walls 17 mounted on a backing plate 18.
  • the cell walls and backing plate may be of metal such as steel or of resinous material.
  • the hard matrix material may be cementitious, ceramic or resinous, and may be filled with reinforcing fibres, for example of metal such as steel, synthetic polymer or carbon.
  • the armour plate of Fig 4 may be laminated to the face of a matrix material panel in which a rod assembly of the invention is embedded, in the same way as the plate 12 of Fig. 3.
  • Fig. 5 shows, in partial cross section, a matrix body 20 of, for example resinous material, in which is embedded a rod assembly 21 of the invention, the whole being backed by a crushable backing mass 22 of cellular material such as foamed polystyrene.
  • the backing mass in turn is backed by a containment sheet 23 of, for example stiff paperboard.
  • the resultant assembly may be used as a crash barrier, since the reinforced matrix will absorb the bulk of the impact energy, and the resultant deformation of the matrix will crush the backing mass thereby attenuating the remaining impact forces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne des tiges entrelacées adaptées pour être utilisées comme renfort intégré dans des matériaux matriciels, comprenant une première, une deuxième et une troisième couche de tiges. Les tiges de chaque couche sont généralement orientées de manière parallèle les unes par rapport aux autres, la deuxième couche étant située entre la première et la troisième couche. Les tiges de la première et de la troisième couche sont orientées longitudinalement dans la même direction, et celles de la deuxième couche sont orientées longitudinalement généralement en angle droit, les tiges de la première et de la troisième couche étant associées par paires de manière que chaque tige n de la première couche, désignée ici comme tige n1, soit associée à une tige n de la troisième couche, désignée comme tige n3, les tiges de la première et de la troisième couche associées étant réunies sous tension par un filament flexible enroulé autour de celles-ci en une série de tours comprenant chacun un enroulement sinusoïdal avant et arrière entrelaçant les tiges de la première et de la troisième couche, chaque paire de tiges n1 et n3 de la première et de la troisième couche étant entourées et réunies par une boucle de filament formée par les enroulements avant et arrière.
PCT/EP2004/006540 2003-06-21 2004-06-17 Ensemble de renfort pour materiaux matriciels WO2004113821A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/560,781 US20060225376A1 (en) 2003-06-21 2004-06-17 Reinforcement assembly for matrix materials
EP04739999A EP1636539A1 (fr) 2003-06-21 2004-06-17 Ensemble de renfort pour materiaux matriciels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0314538.0A GB0314538D0 (en) 2003-06-21 2003-06-21 Reinforcement assembly for matrix materials
GB0314538.0 2003-06-21

Publications (1)

Publication Number Publication Date
WO2004113821A1 true WO2004113821A1 (fr) 2004-12-29

Family

ID=27637109

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/006540 WO2004113821A1 (fr) 2003-06-21 2004-06-17 Ensemble de renfort pour materiaux matriciels

Country Status (4)

Country Link
US (1) US20060225376A1 (fr)
EP (1) EP1636539A1 (fr)
GB (1) GB0314538D0 (fr)
WO (1) WO2004113821A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007028652A1 (fr) * 2005-09-10 2007-03-15 Beltec Industrietechnik Gmbh Corps d'armature realise en plastique renforce par fibres

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120024138A1 (en) * 2010-07-30 2012-02-02 Schott Diamondview Armor Products, Llc Armor panels having strip-shaped protection elements
DE102013100053A1 (de) * 2013-01-04 2014-07-10 Groz-Beckert Kg Beton-Fertigteilelement mit Textilbewehrung und Haltern
DE102013011083A1 (de) * 2013-07-02 2015-01-08 Groz-Beckert Kg Verfahren zum Herstellen eines Betonbauteils, vorgefertigtes Bauelement eines Betonbauteils sowie Betonbauteil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB116702A (en) * 1917-05-29 1918-12-05 Navires En Clement Arme Societ Improvements in Reinforced Concrete.
WO1998030769A1 (fr) * 1997-01-13 1998-07-16 Aalborg Portland A/S Composite resistant aux gros impacts
WO2001081687A1 (fr) * 2000-04-26 2001-11-01 Giantcode A/S Blocs de construction destine a des structures renforcees

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179979A (en) * 1967-05-10 1979-12-25 Goodyear Aerospace Corporation Ballistic armor system
JPH0448743B2 (fr) * 1980-05-01 1992-08-07 Denshito As
DK271386D0 (da) * 1986-06-09 1986-06-09 Aalborg Portland Cement Kompakt armeret struktur
US5736474A (en) * 1993-03-25 1998-04-07 Thomas; Howard L. Multi-structure ballistic material
US6289781B1 (en) * 1996-08-26 2001-09-18 Michael Cohen Composite armor plates and panel
US6358603B1 (en) * 1997-01-13 2002-03-19 Aalborg Portland A/S Hard impact resistant composite
EP1185483A2 (fr) * 1999-06-16 2002-03-13 Giantcode A/S Structures composites a matrice tenace, et procedes de conception et de realisation de ces structures
US20020108338A1 (en) * 2001-02-13 2002-08-15 Barnett Ronald E. Apparatuses, methods and systems for reinforcing concrete panels using fiberglass reinforcing bars
US6701683B2 (en) * 2002-03-06 2004-03-09 Oldcastle Precast, Inc. Method and apparatus for a composite concrete panel with transversely oriented carbon fiber reinforcement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB116702A (en) * 1917-05-29 1918-12-05 Navires En Clement Arme Societ Improvements in Reinforced Concrete.
WO1998030769A1 (fr) * 1997-01-13 1998-07-16 Aalborg Portland A/S Composite resistant aux gros impacts
WO2001081687A1 (fr) * 2000-04-26 2001-11-01 Giantcode A/S Blocs de construction destine a des structures renforcees

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007028652A1 (fr) * 2005-09-10 2007-03-15 Beltec Industrietechnik Gmbh Corps d'armature realise en plastique renforce par fibres

Also Published As

Publication number Publication date
US20060225376A1 (en) 2006-10-12
EP1636539A1 (fr) 2006-03-22
GB0314538D0 (en) 2003-07-30

Similar Documents

Publication Publication Date Title
US4868040A (en) Antiballistic composite armor
US20060105156A1 (en) Impact reinforced composite panel
JP2011501091A (ja) 防弾具パネルシステム
US20110107904A1 (en) Synergistically-Layered Armor Systems and Methods for Producing Layers Thereof
SU698540A3 (ru) Строительное изделие и способ его изготовлени
WO2005098343A1 (fr) Systeme de plaques de blindage
US20070089597A1 (en) Lightweight composite armor
JP4814102B2 (ja) 改良構造用サンドイッチ板
US20110036234A1 (en) Protection armor
WO2007126058A1 (fr) Béton ayant une excellente résistance à l'explosion
KR20120014194A (ko) 복합 물질 및 그의 용도
US5733643A (en) Physical barrier composite material
US20060225376A1 (en) Reinforcement assembly for matrix materials
DK201200491A (en) Light weight composite armor with structural strength
CA2276285C (fr) Composite resistant aux gros impacts
Haim et al. Impact behavior of textile and hybrid cement-based composites
RU2190823C1 (ru) Пулезащитная бронепанель
WO2007056368A2 (fr) Element structurel renforce et procede de formation
JP2006257669A (ja) 耐爆裂性に優れたコンクリート部材
JP2004115997A (ja) シールド掘削用繊維補強柱状体
JPS63551A (ja) 長繊維補強セメント系部材
WO2001000921A1 (fr) Structure multicouche a base de ciment
JPH0768740B2 (ja) 繊維補強セメント系部材
JP2004150003A (ja) 土木資材用シート
PL236456B1 (pl) Materiał balistyczny

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004739999

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2004739999

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2006225376

Country of ref document: US

Ref document number: 10560781

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 10560781

Country of ref document: US

WWW Wipo information: withdrawn in national office

Ref document number: 2004739999

Country of ref document: EP