WO1991000939A1 - Produit de construction - Google Patents

Produit de construction Download PDF

Info

Publication number
WO1991000939A1
WO1991000939A1 PCT/GB1990/001086 GB9001086W WO9100939A1 WO 1991000939 A1 WO1991000939 A1 WO 1991000939A1 GB 9001086 W GB9001086 W GB 9001086W WO 9100939 A1 WO9100939 A1 WO 9100939A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibres
skin
containment
skins
filler
Prior art date
Application number
PCT/GB1990/001086
Other languages
English (en)
Inventor
Albert Henry Knowles
Original Assignee
Knowles Albert H
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 Knowles Albert H filed Critical Knowles Albert H
Publication of WO1991000939A1 publication Critical patent/WO1991000939A1/fr
Priority to GB9200156A priority Critical patent/GB2250712A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
    • E02B3/126—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of bituminous material or synthetic resins

Definitions

  • the present invention relates to a reinforced filamentary building product and to a method of forming the same.
  • UK patent 2184195 there is broadly disclosed a method of forming a rigid structure wherein the space between two longitudinally extending inner and outer flexible coextensive skins is filled with a powdered
  • a filamentary reinforced building product comprising a first flexible containment skin, a second flexible containm skin coextensive with and held in spatial relationship to said first skin, transversely extending reinforcement fibres arranged between the skins, and a filler material embedded in the fibres between the skins, said filler material being of the type that does not set to a rigidised state when mixed with a liquid.
  • the reinforced building product so defined and by reason of its stabilised flexibility, may be used for forming a foot path or a road surface.
  • the filler material may be gravel, sand or fine stone dust such as quarry waste, with one of the skins being permeable to a flowable liquid such as water or tar.
  • the product is transported to a construction site in rolled form where it is then laid on prepared ground and tar spread over the permeable skin thereby to seep through the permeable skin and bond or bind the sand or gravel into a semi-hardened or flexible state between the two skins.
  • the filler may be of sand, quarry waste or earth, or a mixture of either depending upon requirements.
  • the top skin iqay be in the form of a synthetic turf in which case the filler material will remain in its natural state although any penetration of water and pressure of wear would act to cause compaction.
  • Fig 1 is a schematic view of apparatus capable of forming a building product according to the invention
  • Fig 2 are two perspective views of base material for use in forming the building product on the apparatus shown in fig 1;
  • Fig 3 is an enlarged view of a section of the apparatus shown in Fig 1 for delivering the filler material to the base material shown in Fig 2;
  • Fig 4 is a side view depicting the shape of a roller pair of the apparatus shown in Fig 1;
  • Fig 5 is an enlarged view of a paddle wheel element of the apparatus of Fig 1 used to assist in settling the filler material in the fibres of a reinforced building product;
  • Fig 6 is a perspective view of the conveyor belt of the apparatus of Fig 1;
  • Fig 7 is cross sectional view depicting the application of a powdered medium to the fibres of the building product which when heated provides adhesion for the top skin;
  • Fig 8 and 9 illustrate a method to enable the building product to be cut into sections during a production run using the apparatus shown in Fig 1.
  • Suitable base material for use in the process for forming the building product is shown, in Fig 2 and comprise a woven polypropylene backing sheet 1 provided with vertically or substantially vertically erect polypropylene fibres 2 neddle punched through the backing 1.
  • the backing sheet 1 has salvage edges 1 which when turned up as shown in Fig 2 are 3mm higher than the depth of the fibre pile 2.
  • Rollers 4 and 6 move in a clockwise direction and roller 5 and 6 in an anti-clockwise direction to provide the feed movement required.
  • a vibrating hopper 12 is positioned above the roller 4 to deliver powdered or granular filler material M such as sand and gravel to be embedded in the fibres 2.
  • the delivery end of the hopper 12 is provided with a blade (not shown) which forces open the fibre pile ° 2 to allow the filler to be introduced between the fibres 2.
  • Rollers 4 and 6 are provided with end discs forming edges E extending above the rolling surfaces thereof. This is shown in Fig 4 in relation to roller 4 and its 5 companion roller 5.
  • roller 5 has angled sides S which fit between the edges E to enable compressio of the filler material without causing wastage by spillage over the edge of the rollers.
  • the angled edges S provide an outwardly forcing action on the filler material and also prevents the upturned salvage edges 1 of the backing sheet 1 from being crushed.
  • rollers 5 and 7 being free running and either weighted or spring loaded to give downward compression.
  • the rollers 5 and 7 are mounted in slots- (not shown) to allow upward movement due to for example irregularities in the surface movement of the backing sheet 1.
  • the conveyor belt 9 moves in a clockwise direction. It is made of a pliable material such as rubber with upturned edges 10 shown in Fig 6, the edges 10 being typically 3mm lower than the height of the fibres 2.
  • the conveyor belt 9 moves over a flat surface platform (not shown) between upturned metal edges on a level with those of the belt 9.
  • a paddle wheel 13 see Figs 1 and 5, positioned between the platform over which the conveyor belt 9 moves.
  • a portion of the platform is formed of a freely moveable plank section 14 which is intermittently lifted by the blades of the paddle wheel 13 thereby to impart a settling action to the filler material between the fibres 2.
  • the backing sheet 1 with filler material between the fibres 2 thereon then passes beneath a scraper blade
  • the blade 15 is V-shaped with the apex facing the oncoming base material on the conveyor belt. It therefore acts in the manner of a snow plough whereby surplus 0 filler material is forced over the edges of the conveyor belt platform into a suitably positioned vacuum tray
  • a flat blade 17 is then encountered by the protuding 15 fibre pile, the blade 17 having a sideways rubbing action having the effect of making the ends of the fibres stand up above the filler. Any surplus filler is collected by the tray 16.
  • the level surfacce of the filler material M embedded 20. in the fibres 2 is then sprinkled with polypropylene powder from a hopper 18.
  • the bottom of the hopper 18 is provided with a spinning disc 19 to distribute the
  • FIG 7 A detailed view of this action is shown in Fig 7 wherein the surface 25 of the filler 21 has a sprinkling of powder 23 upon it.
  • the edges 22 of the conveyor belt 9 are shown with the sloping edges 24 of the hopper 18.
  • the sloping edges 24 catch the powder which runs down to form powder heaps along the outer edges of the base material 1 as it passes on the conveyor belt 9.
  • These are the points at which most powder is required so that when it is melted it will form a strong welded seam between the edges of the base material 1 and the surface skin to be applied , thus preventing filler leakage.
  • the thus prepared base material now passes under an infra-red heater 25.
  • the hood of the infra-red heater 25 is insulated so that the heat is spread eveningly across the whole surface width of the base material 1.
  • the heater 25 has an extension 26 the purpose of which is to contain the heat directed downwardly onto the base material thus retaining the melted polypropylene powder and fibre ends in a molten sticky state until a surface skin 27 is pulled down from a roll 28 and pressed onto the melt by roller 29.
  • the extension 26, which is unheated, also prevents too much heat reaching the skin 27 before the moment of contact with the molten polypropylene powder. Should this happen the strength and shape of the skin would be effected.
  • Contact with the molten powder for the few seconds it takes to fuse together does not effect it. Once removed from the heat scource it cools and hardens quickly and after passing under roll 30 it may be rolled as shown in 31 ready for use.
  • the woven polypropylene material neddle punched with fine polypropylene fibres 2 shown in Fig 2, is believed to make the cheapest and strongest surface skin. On one side it resembles felt, on the other there is a light covering of fibres punched through the weave this being the side which is ideal for bonding to melted polypropylene powder. It forms a strong weld with fibre ends to encapsulate the filler.
  • the felt side remains in use, as the upper surface, which is ideal for holding heavy paints, tar or for plastering.
  • a second heating unit 32 This melts the fibres of the felt which are then rolled down and bonded by a roller 30.
  • the degree of melting determines the smoothness and imperviousness of the surface.
  • the surface moreover may be decorated in this manner if desired.
  • Speed of production is dictated by the time taken to melt polyproylene powder and exposed fibre ends at the conveyor belt 9 passes beneath the heater 25.
  • the width of the material does not matter i.e. a 3m length lm wide takes the same time as a 3m length 5m wide. Heat stronger than that required actually to melt the powder, may be used with safety because only the polypropy exposed above the embedded filler material is caused
  • a vacuum container 33 is placed beneath the conveyor belt 9 to collect loose filler which may have worked through the base material onto ' the conveyor belt.
  • the conveyor belt 9 is provided with two cutting positions 34 and 35 at which the material can be cut while still in a dry state to make various desired lengths.
  • a flat topped triangular bar 36 is inserted between the underside of the base material 1 and the surface of the conveyor belt 9 across its whole width. This raised the material up to within lmm of the top of the edge of the conveyor belt 9 as shown at 37 in fig 8.
  • the embedded filler will be scrapped out of the pile leaving the bottom of the base material exposed, the fibres 2 being folded down under the blade 15 during this action.
  • the raised portion will be sprinkled with polypropylene powder as it passes beneath the hopper 18, the powder falling onto the exposed base of the material 2, so that when it passes under heater 25 melting will cause -li ⁇
  • the surface containment skin 27 will then seal to the base of the material 1 at 39 in fig 9 to seal in the filler. This is the point at where it can be cut later if after manufacture it is formed into a continuous roll.
  • Runs of a desired equal length can be made by placing bars 36 at equal distances along the conveyor belt 9.
  • the same principle may be applied to form cutting grooves down the length of the material or indeed material of different shaped sections. Rings for example could be placed on- the conveyor belt 9.
  • the material is first wetted on the desired line 2 inches wide and then left for a few minutes until the filler becomes mouldable then cut with a knife. After being cut the end left on the roll will harden to seal in the remaining dry filler. This length can be cut off if required before use for the next application.
  • the building product manufactured in accordance with the above description has many uses. By virtue of the introduction of the transverse fibres extending .
  • the combination of these fibres with embedded powdered material renders the structure flexible yet stable.
  • One or both of the skins of the product may be made permeable to the passage of fluids to mix
  • the filler material may be of sand and as such if both surfaces are permeable may be used
  • the product could be used as a dressing for flat roofs being soaked and then surface dressed with bitumastic.
  • the filler material could be coarse gravel and the resulting product used for soil stabilisation and
  • the product could be used to form walkways such as garden paths, the surface being dressed with tar which would permeate the skin and bind with the filler.
  • bentonite powder advantageously in the form of pure Wyoming bentonite powder which when mixed with water expands in volume and sets to a pliable or flexible state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

Un produit armé de construction constitué de deux enveloppes de rétention (1) espacées, avec des fibres de renfort qui s'étendent transversalement entre les enveloppes (1). Les espaces entre les fibres (2) sont remplis de matière pulvérulente ou granuleuse (M) telle que la bentonite pour former une structure souple stable. Au moins une des enveloppes de rétention (1) peut être perméable à un liquide coulable telle que l'eau qui, une fois insérée pour la mélanger avec la bentonite (M), provoque le gonflement de la bentonite, ce qui augmente la souplesse et la stabilité. En variante, le matériau de charge (M) peut être du sable grossier ou du gravier, dans ce cas le produit peut être utilisé pour réaliser un passage pour piétons doté d'un traitement superficiel de goudron qui est ensuite capable de pénétrer à travers une des enveloppes (1) et d'assurer la liaison de la charge (M).
PCT/GB1990/001086 1989-07-13 1990-07-13 Produit de construction WO1991000939A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9200156A GB2250712A (en) 1989-07-13 1992-01-06 A building product

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8916119.4 1989-07-13
GB898916119A GB8916119D0 (en) 1989-07-13 1989-07-13 Stabilizing powders in sandwich form

Publications (1)

Publication Number Publication Date
WO1991000939A1 true WO1991000939A1 (fr) 1991-01-24

Family

ID=10660029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/001086 WO1991000939A1 (fr) 1989-07-13 1990-07-13 Produit de construction

Country Status (5)

Country Link
AU (1) AU6031190A (fr)
GB (1) GB8916119D0 (fr)
IL (1) IL95089A0 (fr)
WO (1) WO1991000939A1 (fr)
ZA (1) ZA905501B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731220A1 (fr) * 1995-03-07 1996-09-11 Peter Dipl.-Ing. Reither Tapis pour terrains
EP1616960A2 (fr) * 1995-02-10 2006-01-18 The Regents Of The University Of California Lignées de cellules pancréatiques humaines: développements et utilisations
WO2012125513A1 (fr) * 2011-03-11 2012-09-20 Closureturf, Llc Système de revêtement de sol en matériau synthétique avec remplissage pourvu d'un liant pour la lutte contre l'érosion
US20150118418A1 (en) * 2013-10-29 2015-04-30 Watershed Geosynthetics, LLC Geocomposite covering

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561177A (en) * 1968-07-16 1971-02-09 Charles A Cassaro Building component
EP0059625A1 (fr) * 1981-02-27 1982-09-08 Clem Environmental Corp. Sol protégé de l'eau
EP0065622A1 (fr) * 1981-04-23 1982-12-01 J.F. Adolff AG Nattes utilisées en particulier comme sous-couches pour gazon artificiel
WO1985005431A1 (fr) * 1984-05-16 1985-12-05 Knowles Albert H Conduite a conformation permanente pour fluides et analogues et son procede de production
EP0168081A2 (fr) * 1984-07-11 1986-01-15 Heidemij Uitvoering B.V. Procédé et dispositif pour réaliser un terrain en gazon artificiel, pochoir, dispositif pour former des lignes et gazon artificiel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561177A (en) * 1968-07-16 1971-02-09 Charles A Cassaro Building component
EP0059625A1 (fr) * 1981-02-27 1982-09-08 Clem Environmental Corp. Sol protégé de l'eau
EP0065622A1 (fr) * 1981-04-23 1982-12-01 J.F. Adolff AG Nattes utilisées en particulier comme sous-couches pour gazon artificiel
WO1985005431A1 (fr) * 1984-05-16 1985-12-05 Knowles Albert H Conduite a conformation permanente pour fluides et analogues et son procede de production
EP0168081A2 (fr) * 1984-07-11 1986-01-15 Heidemij Uitvoering B.V. Procédé et dispositif pour réaliser un terrain en gazon artificiel, pochoir, dispositif pour former des lignes et gazon artificiel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616960A2 (fr) * 1995-02-10 2006-01-18 The Regents Of The University Of California Lignées de cellules pancréatiques humaines: développements et utilisations
EP1616960A3 (fr) * 1995-02-10 2008-03-26 The Regents Of The University Of California Lignées de cellules pancréatiques humaines: développements et utilisations
EP0731220A1 (fr) * 1995-03-07 1996-09-11 Peter Dipl.-Ing. Reither Tapis pour terrains
WO2012125513A1 (fr) * 2011-03-11 2012-09-20 Closureturf, Llc Système de revêtement de sol en matériau synthétique avec remplissage pourvu d'un liant pour la lutte contre l'érosion
US9163375B2 (en) 2011-03-11 2015-10-20 Watershed Geosynthetics Llc Synthetic ground cover system with binding infill for erosion control
EP3556943A1 (fr) * 2011-03-11 2019-10-23 Watershed Geosynthetics LLC Système de revêtement de sol en matériau synthétique pour lutter contre l'érosion
US20150118418A1 (en) * 2013-10-29 2015-04-30 Watershed Geosynthetics, LLC Geocomposite covering
US11045847B2 (en) * 2013-10-29 2021-06-29 Watershed Geosynthetics Llc Geocomposite covering

Also Published As

Publication number Publication date
IL95089A0 (en) 1991-06-10
GB8916119D0 (en) 1989-08-31
ZA905501B (en) 1991-05-29
AU6031190A (en) 1991-02-06

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