EP1431014A2 - Process for manufacturing modular refracting elements and modular refracting elements obtained therefrom - Google Patents

Process for manufacturing modular refracting elements and modular refracting elements obtained therefrom Download PDF

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Publication number
EP1431014A2
EP1431014A2 EP03028791A EP03028791A EP1431014A2 EP 1431014 A2 EP1431014 A2 EP 1431014A2 EP 03028791 A EP03028791 A EP 03028791A EP 03028791 A EP03028791 A EP 03028791A EP 1431014 A2 EP1431014 A2 EP 1431014A2
Authority
EP
European Patent Office
Prior art keywords
refracting
moulds
modular
mix
microspheres
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
EP03028791A
Other languages
German (de)
French (fr)
Other versions
EP1431014B1 (en
EP1431014A3 (en
Inventor
Fabio Valle
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.)
Valle Francesco Srl
Original Assignee
Valle Francesco Srl
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 Valle Francesco Srl filed Critical Valle Francesco Srl
Publication of EP1431014A2 publication Critical patent/EP1431014A2/en
Publication of EP1431014A3 publication Critical patent/EP1431014A3/en
Application granted granted Critical
Publication of EP1431014B1 publication Critical patent/EP1431014B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/10—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form each charge of material being compressed against previously formed body
    • 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
    • E01C5/00—Pavings made of prefabricated single units
    • 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
    • E01C5/00—Pavings made of prefabricated single units
    • E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
    • E01C5/065—Pavings made of prefabricated single units made of units with cement or like binders characterised by their structure or component materials, e.g. concrete layers of different structure, special additives
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
    • B28B3/06—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould with two or more ram and mould sets

Definitions

  • This patent concerns the sector of road signs and road safety devices, and in particular it concerns road markings.
  • paint has the drawback that it fades very quickly, due to the passage of vehicles. Furthermore, paint has scarce reflecting properties and therefore in case of insufficient light or fog the road markings are not clearly visible.
  • the object of this patent is constituted by a new process for carrying out modular refracting elements to be inserted in the road surface and by the modular refracting element obtained therefrom.
  • the aim of the new modular element to be inserted in the road surface is to reflect the light projected by the lamps of the vehicles in transit.
  • Another aim of the new modular element is to reflect light even after being subjected to intense wear.
  • a further aim of the new modular refracting element is to be raised from the road surface and to produce sound waves that can be sensed by the drivers.
  • the new modular refracting element is carried out by introducing into apposite moulds a quantity of cement mix slightly smaller than the quantity needed to fill the mould completely.
  • the layer comprising binder, aggregate and microspheres is laid on the upper surface of the element and then compressed.
  • Figure 1 is an axonometric view of the new modular element (M).
  • the new modular element (M) comprises a body (M1) to which a layer of refracting mix (M2) is applied.
  • the body (M1) is preferably parallelepiped-shaped, or can be carried out in any other suitable geometric shape.
  • Said body (M1) is preferably made of cement mix and is suitable for being applied and fixed to the road surface or to the road sub-base.
  • the reflecting layer (M2) is constituted by a mix of microspheres, binder and aggregate.
  • the microspheres have indicatively very small diametre, of the order of millimetres, and are constituted by glass, pure glass, semi-pure glass or are ceramic coated.
  • the binder can be constituted by cement, chemical bonding agent, or another type of binder suitable for binding the microspheres to one another and to the body (M1).
  • the reflecting layer (M2) is applied to the upper part of the body (M1) and its upper edges are preferably inclined, radiused or rounded.
  • the new modular refracting element (M) constituted as described above offers considerable advantages.
  • the new modular refracting element (M) can be inserted both in the already made-up road surface and in the road sub-base, on which the road surface must be laid.
  • the new modular refracting element (M) does not lose its reflecting characteristics over time, since it doesn't wear out due to the passage of vehicles, or only its upper layer wears out, showing the underlying reflecting part.
  • the new modular refracting element (M) is much more luminous, both in good and in bad visibility and light conditions.
  • the new modular refracting element (M) can be used to carry out any type of road markings, for example road center or road side lines, as shown in Figure 2, since the shape of the reflecting layer (M2) with inclined or rounded edges constitutes a raised section producing sound waves that can be sensed by the drivers.
  • the new refracting element (M) constituted as described above is carried out according to the process described below and represented diagrammatically in Figures 3a, 3b, 3c, 3d, 3e.
  • the cement mix that makes up the body (M1) is poured into apposite moulds (S1), preferably multiple moulds, in a slightly smaller quantity than that needed to fill each mould completely ( Figure 3a).
  • Said cement mix is vibrated and compressed by relevant counter-moulds (S2), in such a way as to give it the shape of a parallelepiped or in any case to obtain a flat upper surface ( Figure 3b).
  • microspheres are spread, strewn or laid onto said refracting mix (M2), after properly compacting it through vibration (Figure 3d).
  • the production process of the new modular refracting element (M) as described above may include only the spreading, strewing, or laying of microspheres on the cement mix already introduced in the mould (S1) and compacted.
  • the production process of the new modular refracting element (M) as described above may include the introduction of the refracting mix (M2) only into the mould (S), without the successive spreading, strewing or laying of microspheres.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Road Paving Structures (AREA)
  • Road Signs Or Road Markings (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Steroid Compounds (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

The invention concerns a new process for carrying out modular refracting elements to be inserted in the road surface, constituted by a body in cement mix, to which a refracting layer made of binder, agglomerate and glass or ceramic coated microspheres is applied, as well as the modular refracting element obtained therefrom. The new modular refracting element is obtained by introducing into apposite moulds a quantity of cement mix slightly smaller than the quantity needed to fill each mould completely. A new layer made up of binder, agglomerate and microspheres is laid on the upper surface of this body and successively compressed onto the same.

Description

  • This patent concerns the sector of road signs and road safety devices, and in particular it concerns road markings.
  • Road markings are currently made with white paint.
  • The use of paint is widespread and it makes it possible to carry out road markings rather quickly, even if they are complex or special.
  • On the other hand, however, paint has the drawback that it fades very quickly, due to the passage of vehicles. Furthermore, paint has scarce reflecting properties and therefore in case of insufficient light or fog the road markings are not clearly visible.
  • The object of this patent is constituted by a new process for carrying out modular refracting elements to be inserted in the road surface and by the modular refracting element obtained therefrom.
  • The aim of the new modular element to be inserted in the road surface is to reflect the light projected by the lamps of the vehicles in transit.
  • Another aim of the new modular element is to reflect light even after being subjected to intense wear.
  • A further aim of the new modular refracting element is to be raised from the road surface and to produce sound waves that can be sensed by the drivers.
  • These and other direct and complementary aims are achieved through the new process for carrying out modular refracting elements to be inserted in the road surface, said elements being constituted by a cement mix body to which a refracting layer is applied, which comprises binder, aggregate and glass or ceramic microspheres, as well as through the relevant modular refracting element obtained therefrom.
  • The new modular refracting element is carried out by introducing into apposite moulds a quantity of cement mix slightly smaller than the quantity needed to fill the mould completely. The layer comprising binder, aggregate and microspheres is laid on the upper surface of the element and then compressed.
  • The characteristics of the new process for carrying out modular refracting elements to be inserted in the road surface and of the modular element obtained therefrom will be highlighted in greater detail by the following description of one among many possible applications of the invention, with reference to the attached drawings, wherein:
  • Figure 1 is an axonometric view of the new modular element (M).
  • The new modular element (M) comprises a body (M1) to which a layer of refracting mix (M2) is applied.
  • The body (M1) is preferably parallelepiped-shaped, or can be carried out in any other suitable geometric shape.
  • Said body (M1) is preferably made of cement mix and is suitable for being applied and fixed to the road surface or to the road sub-base.
  • The reflecting layer (M2) is constituted by a mix of microspheres, binder and aggregate.
  • The microspheres have indicatively very small diametre, of the order of millimetres, and are constituted by glass, pure glass, semi-pure glass or are ceramic coated.
  • The binder can be constituted by cement, chemical bonding agent, or another type of binder suitable for binding the microspheres to one another and to the body (M1).
  • The reflecting layer (M2) is applied to the upper part of the body (M1) and its upper edges are preferably inclined, radiused or rounded.
  • The new modular refracting element (M) constituted as described above offers considerable advantages.
  • The new modular refracting element (M) can be inserted both in the already made-up road surface and in the road sub-base, on which the road surface must be laid.
  • The new modular refracting element (M) does not lose its reflecting characteristics over time, since it doesn't wear out due to the passage of vehicles, or only its upper layer wears out, showing the underlying reflecting part.
  • The new modular refracting element (M) is much more luminous, both in good and in bad visibility and light conditions.
  • The new modular refracting element (M) can be used to carry out any type of road markings, for example road center or road side lines, as shown in Figure 2, since the shape of the reflecting layer (M2) with inclined or rounded edges constitutes a raised section producing sound waves that can be sensed by the drivers.
  • The new refracting element (M) constituted as described above is carried out according to the process described below and represented diagrammatically in Figures 3a, 3b, 3c, 3d, 3e.
  • The cement mix that makes up the body (M1) is poured into apposite moulds (S1), preferably multiple moulds, in a slightly smaller quantity than that needed to fill each mould completely (Figure 3a).
  • Said cement mix is vibrated and compressed by relevant counter-moulds (S2), in such a way as to give it the shape of a parallelepiped or in any case to obtain a flat upper surface (Figure 3b).
  • Successively, a suitable quantity of refracting mix (M2) is poured into the same moulds (S1) (Figure 3c).
  • Further microspheres are spread, strewn or laid onto said refracting mix (M2), after properly compacting it through vibration (Figure 3d).
  • A further compressing action makes it possible to compact said refracting mix (M2), if necessary shaping its perimetric edges (Figure 3e).
  • Finally, the combination of body (M1) and refracting mix (M2), compacted and shaped as described above, are left to harden.
  • The production process of the new modular refracting element (M) as described above may include only the spreading, strewing, or laying of microspheres on the cement mix already introduced in the mould (S1) and compacted.
  • The production process of the new modular refracting element (M) as described above may include the introduction of the refracting mix (M2) only into the mould (S), without the successive spreading, strewing or laying of microspheres.
  • Therefore, with reference to the above description and the enclosed drawings, the following claims are put forth.

Claims (9)

  1. Process for carrying out modular elements (M), characterized in that it comprises:
    the introduction of the cement mix constituting the body (M1) into apposite moulds (S1), in a smaller quantity than that needed to fill the moulds (S1) completely, and successive vibration of said moulds (S1);
    the pressure compacting of the cement mix constituting the body (M1) by means of apposite counter-moulds (S2);
    the laying of a further layer of refracting mix (M2);
    the spreading, strewing, or laying of microspheres on the refracting mix (M2) inside the moulds (S1);
    the compacting and compression of the refracting mix (M2) by means of apposite counter-moulds.
  2. Process for carrying out modular refracting elements (M), characterized in that it includes:
    the introduction of the cement mix constituting the body (M1) into apposite moulds (S1) and the successive vibration of said moulds (S1);
    the spreading, strewing, or laying of microspheres inside the moulds (S1);
    the compacting and compression of the microspheres and of the cement or mix constituting the body (M1) by means of apposite counter-moulds.
  3. Process for carrying out modular refracting elements (M), characterized in that it includes:
    the introduction of the cement mix constituting the body (M1) into apposite moulds (S1), in a smaller quantity than that needed to fill the moulds (S1) completely, and the successive vibration of said moulds (S1);
    the pressure compacting of the cement mix constituting the body (M1) by means of apposite counter-moulds (S2);
    the introduction of a further layer of refracting mix (M2) in the moulds (S1);
    the compacting and compression of the refracting mix (M2) by means of apposite shaped counter-moulds (S3).
  4. Modular element to be inserted into the road surface, comprising a body (M1) made of cement mix, characterized in that a refracting layer (M2) made up of binder, agglomerate and microspheres is laid on and joined to said body (M1).
  5. Modular refracting element according to claim 4, characterized in that the microspheres of the refracting layer (M2) are made of pure glass.
  6. Modular refracting element according to claim 4, characterized in that the microspheres of the refracting layer (M2) are made of semi-pure glass.
  7. Modular refracting element according to claim 4, characterized in that the microspheres of the refracting layer (M2) are ceramic coated.
  8. Modular refracting element according to claim 4, characterized in that the edges of the refracting layer (M2) are inclined, radiused or rounded.
  9. Sound-emitting road line marking, characterized in that it comprises modular elements (M) with refracting upper layer (M2).
EP03028791A 2002-12-20 2003-12-13 Process for manufacturing modular refracting elements Expired - Lifetime EP1431014B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000329A ITPD20020329A1 (en) 2002-12-20 2002-12-20 PROCEDURE FOR THE PRODUCTION OF ELEMENTS
ITPD20020329 2002-12-20

Publications (3)

Publication Number Publication Date
EP1431014A2 true EP1431014A2 (en) 2004-06-23
EP1431014A3 EP1431014A3 (en) 2005-09-21
EP1431014B1 EP1431014B1 (en) 2009-04-29

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EP03028791A Expired - Lifetime EP1431014B1 (en) 2002-12-20 2003-12-13 Process for manufacturing modular refracting elements

Country Status (4)

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EP (1) EP1431014B1 (en)
AT (1) ATE430008T1 (en)
DE (1) DE60327413D1 (en)
IT (1) ITPD20020329A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006069636A1 (en) * 2004-12-24 2006-07-06 Metten, Stein+Design Gmbh & Co. Kg Method for the production of concrete blocks or concrete slabs
WO2006102989A1 (en) * 2005-04-01 2006-10-05 Sf-Kooperation Gmbh Beton-Konzepte Method for producing a flooring and concrete blank for producing same
US7935284B2 (en) * 2004-12-24 2011-05-03 Metten Stein + Design Gmbh & Co. Kg Method for fabricating concrete blocks or concrete slabs
CN104441206A (en) * 2014-10-16 2015-03-25 内江市恒世达建材有限公司 Making method of concrete road bricks with water permeability
WO2016005566A1 (en) 2014-07-11 2016-01-14 Metten Stein+Design Gmbh & Co. Kg Method for producing concrete elements
US9649783B2 (en) 2014-02-25 2017-05-16 Arpad Barabas Method for producing paver block having mottled tread surface
IT201800003011A1 (en) * 2018-02-23 2019-08-23 Massimo Senini PREFABRICATED VIBRO-COMPRESSED CONCRETE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2457766A1 (en) * 1973-09-19 1976-06-10 Montagebeton Gmbh Glass inlay for concrete slabs - uses mould with surface indentations for glass beads set in concrete and plastics
JPS62282906A (en) * 1986-05-31 1987-12-08 山崎　好一 Manufacture of optical reflective ability concrete
GB2297575A (en) * 1995-02-04 1996-08-07 S & J Loach Limited Reflective block and method of manufacture
WO1998022269A1 (en) * 1996-11-20 1998-05-28 Ang, Thiam, Seng Method and apparatus for forming a concrete block

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2457766A1 (en) * 1973-09-19 1976-06-10 Montagebeton Gmbh Glass inlay for concrete slabs - uses mould with surface indentations for glass beads set in concrete and plastics
JPS62282906A (en) * 1986-05-31 1987-12-08 山崎　好一 Manufacture of optical reflective ability concrete
GB2297575A (en) * 1995-02-04 1996-08-07 S & J Loach Limited Reflective block and method of manufacture
WO1998022269A1 (en) * 1996-11-20 1998-05-28 Ang, Thiam, Seng Method and apparatus for forming a concrete block

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006069636A1 (en) * 2004-12-24 2006-07-06 Metten, Stein+Design Gmbh & Co. Kg Method for the production of concrete blocks or concrete slabs
US7935284B2 (en) * 2004-12-24 2011-05-03 Metten Stein + Design Gmbh & Co. Kg Method for fabricating concrete blocks or concrete slabs
WO2006102989A1 (en) * 2005-04-01 2006-10-05 Sf-Kooperation Gmbh Beton-Konzepte Method for producing a flooring and concrete blank for producing same
US9649783B2 (en) 2014-02-25 2017-05-16 Arpad Barabas Method for producing paver block having mottled tread surface
WO2016005566A1 (en) 2014-07-11 2016-01-14 Metten Stein+Design Gmbh & Co. Kg Method for producing concrete elements
DE102014010259A1 (en) 2014-07-11 2016-01-14 Metten Stein + Design Gmbh & Co. Kg Method for producing concrete elements
DE202015009253U1 (en) 2014-07-11 2017-03-27 Metten Stein + Design Gmbh & Co. Kg concrete elements
US10815150B2 (en) 2014-07-11 2020-10-27 Metten Stein+Design Gmbh & Co. Kg Method for producing concrete elements
CN104441206A (en) * 2014-10-16 2015-03-25 内江市恒世达建材有限公司 Making method of concrete road bricks with water permeability
IT201800003011A1 (en) * 2018-02-23 2019-08-23 Massimo Senini PREFABRICATED VIBRO-COMPRESSED CONCRETE
WO2019162916A1 (en) * 2018-02-23 2019-08-29 Senini Massimo Prefabricated product of vibro-compressed concrete

Also Published As

Publication number Publication date
EP1431014B1 (en) 2009-04-29
ITPD20020329A1 (en) 2004-06-21
DE60327413D1 (en) 2009-06-10
EP1431014A3 (en) 2005-09-21
ATE430008T1 (en) 2009-05-15

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