WO2005012421A1 - Produit auxiliaire biodegradable pour construction en beton, son procede de fabrication et son utilisation - Google Patents

Produit auxiliaire biodegradable pour construction en beton, son procede de fabrication et son utilisation Download PDF

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Publication number
WO2005012421A1
WO2005012421A1 PCT/DE2004/001727 DE2004001727W WO2005012421A1 WO 2005012421 A1 WO2005012421 A1 WO 2005012421A1 DE 2004001727 W DE2004001727 W DE 2004001727W WO 2005012421 A1 WO2005012421 A1 WO 2005012421A1
Authority
WO
WIPO (PCT)
Prior art keywords
biodegradable
concrete
starch
auxiliaries according
additives
Prior art date
Application number
PCT/DE2004/001727
Other languages
German (de)
English (en)
Inventor
Dieter Glusa
Reinhard Lindner
Hans-Peter Schmauder
Original Assignee
Alonid Aktiengesellschaft
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
Priority claimed from DE20311968U external-priority patent/DE20311968U1/de
Priority claimed from DE20312755U external-priority patent/DE20312755U1/de
Priority claimed from DE20312753U external-priority patent/DE20312753U1/de
Priority claimed from DE20312754U external-priority patent/DE20312754U1/de
Application filed by Alonid Aktiengesellschaft filed Critical Alonid Aktiengesellschaft
Publication of WO2005012421A1 publication Critical patent/WO2005012421A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/14—Fastening of cover or lid to box
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/342—Moulds, cores, or mandrels of special material, e.g. destructible materials which are at least partially destroyed, e.g. broken, molten, before demoulding; Moulding surfaces or spaces shaped by, or in, the ground, or sand or soil, whether bound or not; Cores consisting at least mainly of sand or soil, whether bound or not
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/04—Cores for anchor holes or the like around anchors embedded in the concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air

Definitions

  • Biodegradable aids for concrete construction a process for their production and their use
  • the invention relates to biodegradable aids for concrete construction, a process for their production and their use.
  • a finishing process is usually carried out by drilling, cutting,
  • Solid or hollow bodies made of wood, metal, plastics and others
  • EP 1 327 663 discloses biodegradable compostable containers. These materials are made from pre-gelled starch suspensions with fibers and other materials in molds at 250 ° C. These materials are used in the food sector.
  • Potato and / or corn starch and water are made. In addition to the
  • Composite material can lose its dimensional stability, so that an additional water-repellent coating made of a natural material must also be used. This additional
  • the object of the invention is to provide biodegradable aids for concrete construction, a method for producing these aids and their use in order to provide inexpensive, universally usable, easily producible and removable moldings which do not have the disadvantages of the prior art.
  • auxiliaries / molded articles for concrete construction consist of starch and water, which may be provided with primarily biodegradable additives, so that after a certain time these auxiliaries become powder-like residual material that is mechanically or pneumatically (e.g. blowing or vacuuming) can be removed in order to be composted or because of its low mass it can remain in the concrete component.
  • starch can be partially or completely replaced by pre-crosslinked vegetable flours.
  • the formwork, joint tapes or cavities required in concrete construction are produced reliably, with little effort and without rework.
  • auxiliary agents produced according to the invention which are also referred to as implants and can be used, for example, as hollow molds (calibrated empty mandrels) or separating layers, is just as possible in the industrial production of components as in site-related construction and concreting work.
  • the desired implants / hole patterns for holding the dowels or concrete screws result from the temporally defined decay of the inserted mandrels.
  • the remnants of the shaped starch bodies can be removed by blowing, washing out or suctioning off and, in the case of large amounts, can be disposed of by composting.
  • an inserted hollow mold according to the invention for example an empty pipe, or an empty mandrel is inadvertently filled or covered with concrete
  • the excess material can be removed with little effort and the required free space can be created.
  • the calibrated mandrels and separating layers or similar starch-based materials already in the construction or manufacturing phase of the component the complex work steps can be avoided.
  • the desired hole patterns for the admission of the dowels or concrete screws result from the temporally defined decay of the inserted mandrels.
  • the remnants of the starch moldings can be removed by blowing, washing out or vacuuming and, in the event of large amounts, being disposed of by composting.
  • the implant according to the invention is covered with building material, e.g. Plastering mortar, it is easy to find due to the discoloration of the building material due to the implant.
  • building material e.g. Plastering mortar
  • Cavities e.g. Switch and junction boxes, covered by biodegradable molded parts and plastered over. Due to the insulating effect of the material, in addition to securing space and being able to be found, hazards caused by electrical current are largely avoided.
  • the residual material resulting from the disintegration of the implant can be removed mechanically or pneumatically, disposed of and composted, or can remain in the component due to the low mass. No material damage or corrosion can occur on the building due to the setting of the material
  • the installation systems can be reliably protected with inexpensive one-way covers and covers and protected from dirt and damage. Due to their electrically and misch insulating properties, they also serve as protection for the environment and people.
  • the desired recesses or joints are created by absorbing the water that is released when the concrete sets (dehydration). Thereafter, the molded starch body is sniffed, after which it is easier to separate it from the hardened concrete part and to find the desired recesses.
  • the disintegration of the inserted formwork parts or joint tapes can be defined in time by different compositions of the mixtures.
  • auxiliary formwork of complicated and individual formwork variants and surfaces • inserts between formwork and concrete to enable simple and clean formwork removal • fillings for breakthroughs in concrete • covers of in concrete inserted parts in order to prevent them from being stripped cleanly and easily and to prevent accidental filling and / or contamination with concrete and / or mortar. • Determining the quality of the concrete surface (rough or smooth surface) by changing the recipe (Rails, etc.) • Filler for parts to be used in concrete to prevent accidental filling of these parts with concrete in the technological process • Insertion of expansion joints for surface concrete (eg when building a motorway), so that no subsequent mechanical separation is necessary. • Insertion of auxiliary formwork in order to be able to achieve defined surfaces up to 5 ornaments (on customer request)
  • the mixture of substances can be composed, for example, as follows: • Water approx. 40 ... 65% lo • Starch (also in the form of vegetable mixtures with a defined proportion of starch, pre-crosslinked starches i)) approx. 15 ... 40% • Release agent ( Stearates / waxes) approx. 0.05 & 7.50% • Thickener (xanthans / pre-gelatinized starch, polyvinyl acetate, polyvinyl alcohol) approx. 0.5 ... 7.50%
  • Fibers preferably with fiber lengths in the range 0.05 ... 5.0 mm mm: paper, cellulose, vegetable fibers (hemp, straw), wood fibers) approx. 5. ..35% • fillers: chalk, titanium dioxide, flour approx. 2.5 .. 15% • aggregates as partial or complete
  • the additives the amount of which is preferably 5.5 to 30% of the total amount of the substance mixture, by etherification or other processes
  • the degree of crosslinking of the additives is 10 "6 to 10 " 2 , preferably 10 "5 to 10 " 3 .
  • Smooth surfaces are primarily accessible through the use of additives of chitosan, polyvinyl alcohol, polyvinyl acetate, polyethylene glycol, thermal treatments, microwave treatment, coatings, polymer dispersions.
  • Rough surfaces can be obtained by adding different fibers, varying the fiber lengths and / or the fiber processing or varying the fiber concentration, changing the amylose content (e.g. pea amylose), adding blowing agents (such as yeast, brewer's yeast, etc.) and / or one Variation of processing methods (e.g. by using different nozzles during extrusion).
  • amylose content e.g. pea amylose
  • blowing agents such as yeast, brewer's yeast, etc.
  • processing methods e.g. by using different nozzles during extrusion.
  • the manufacturing method according to the invention provides quick-dissolving aids, for example for formwork elements, with controllable shelf lives of between 10 minutes and 4 hours (depending on the composition of the auxiliary means), for example in the form of starch shaped bodies produced by means of the baking process.
  • Aids according to the invention can, for example, also be tubes, bends and angles, which can also be produced, inter alia, by thermo-thermal processes (e.g. by injection molding) using bioplastics with flour / starch and / or inorganic fillings.
  • the tubes can be made, for example, from paper, flour and water-soluble adhesives using the winding technique.
  • Aids in large-volume form can be manufactured in modified injection molding processes (e.g. with special cooling in the injection unit and baking through heat treatment in the mold) or in the extradiving process.
  • modified injection molding processes e.g. with special cooling in the injection unit and baking through heat treatment in the mold
  • extradiving process e.g. with special cooling in the injection unit and baking through heat treatment in the mold
  • the starch implants are positioned in various sizes and shapes in the manufacture or renovation of structures at the technologically required locations. There they absorb water released during dehydration, shrink and disintegrate within a defined period of time, thus opening up the desired cavity.
  • the rest of the material is biodegradable and compostable. Even with a slight overlap with building material (e.g. concrete or mortar), the positions are easy to find because the disintegrating implants discolor the building materials darkly and the locations of use can be easily found again.
  • the calibrated empty domes produced in starch in various dimensions and shapes are inserted into them at the technologically required points during the production of concrete parts and structures.
  • the empty domes absorb water released during dehydration, swell first and when the moldings dry, they shrink, disintegrate after a defined time and the required opening is released.
  • the decaying materials color the building material dark and can be found again in this way. They can then be isolated and sent to composting.
  • Biodegradable lids and covers for short-term protection of electrical, sanitary and heating installations, during building renovation to close cavities (branch, switch and socket outlets, concealed distributors, cable ducts, etc.)
  • the formwork and joint tapes produced on the basis of starch are introduced in different dimensions in the manufacture of concrete parts and building bodies at the technologically necessary points. Even after installation in this type of material, the installations absorb water released during dehydration, shrink later and disintegrate after a defined time. All of the profiles or joints created by installing these formworks and / or joint tapes and after their disintegration can be found safely and do not require any additional work to prepare the joints and / or profiles. In this case too, a slight overlap is a problem of the material, as it colors the building material darker when it decays. All residual materials are compostable.
  • Concrete can be introduced and compacted in these formwork forms in a known manner. If the concrete sets, it releases water. This water is sucked up by the separating layers of starch. After the starch separating layer has been shrunk by water evaporation, the concrete elements can be easily removed without dismantling the formwork. There are no edge breakouts on the concrete elements. The formwork can be welded together and no longer has to be removable. This saves significant work steps and prevents deformation.
  • the insert elements are placed and fixed on the main formwork. After pouring in the concrete, its hardening and shrinking of the starch body, even complicated upper compartments (for example ornaments) can be demolded cleanly and without damage. This creates the desired structure on the concrete surface directly and without rework.
  • the simple and inexpensive production using ⁇ ⁇ cl ⁇ ermic processes e.g. injection molding, extruders and / or baking processes
  • the control of the surface structure of the building material / concrete after setting by defined composition of the aids according to the invention make this to universally usable moldings in concrete construction.
  • the predefinable composition of the components of these aids enables the technologically required durability to be set, so that the construction times can be influenced effectively without additional work being necessary.
  • auxiliary agent (s) by controllable absorption of water during the setting process of the building materials / concrete, the simple removal of the residues of the auxiliary agents according to the invention by suction, sweeping, rinsing out without additional costly reworking and the disposal of the residues of the auxiliary agents is particularly advantageous by means of composting or by other biological means, such as in the biogas process. This disposal leads to recycling and environmental pollution is avoided.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

L'invention concerne un produit auxiliaire biodégradable pour une construction en béton, son procédé de fabrication et son utilisation. L'invention a pour but de fournir un produit auxiliaire biodégradable pour construction en béton, un procédé de fabrication d'un tel produit, et une utilisation dudit produit, afin de disposer d'un corps moulé économique, d'utilisation universelle, facilement préparable et éliminable, ne présentant pas les inconvénients de l'état de la technique. A cet effet, l'invention est caractérisée en ce que le produit auxiliaire est constitué par de l'amidon et/ou des farines végétales pré-réticulées, de l'eau et des substances d'addition principalement biodégradables, de telle façon que ces produits auxiliaires puissent être utilisés comme corps moulés dans une construction en béton, et soient, après un certain temps, réduits sous forme de matériaux résiduels pulvérulents, ou éliminés, ou encore, puissent demeurer dans le béton.
PCT/DE2004/001727 2003-07-31 2004-07-30 Produit auxiliaire biodegradable pour construction en beton, son procede de fabrication et son utilisation WO2005012421A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE20311968U DE20311968U1 (de) 2003-07-31 2003-07-31 Biologisch abbaubare Implantate zur Schaffung und Sicherung von Hohlräumen an und in Baukörpern
DE20311968.1 2003-07-31
DE20312753.6 2003-08-19
DE20312755U DE20312755U1 (de) 2003-08-19 2003-08-19 Biologisch abbaubare Schalungen und Fugenbänder zur Verwendung im Betonbau
DE20312755.2 2003-08-19
DE20312754.4 2003-08-19
DE20312753U DE20312753U1 (de) 2003-08-19 2003-08-19 Biologisch abbaubare Leerdorne zur Herstellung von Kernlöchern für Dübel und Betonschrauben in Betonteilen
DE20312754U DE20312754U1 (de) 2003-08-19 2003-08-19 Biologisch abbaubare Deckel und Abdeckungen zur kurzzeitigen Sicherung von Installationsanlagen bei Gebäudekonstruktionen

Publications (1)

Publication Number Publication Date
WO2005012421A1 true WO2005012421A1 (fr) 2005-02-10

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Application Number Title Priority Date Filing Date
PCT/DE2004/001727 WO2005012421A1 (fr) 2003-07-31 2004-07-30 Produit auxiliaire biodegradable pour construction en beton, son procede de fabrication et son utilisation

Country Status (1)

Country Link
WO (1) WO2005012421A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924456A1 (fr) * 2007-12-03 2009-06-05 Conception De Realisation Et D Dispositif et procede pour former une reservation dans une dalle de beton
US7967904B2 (en) 2002-01-11 2011-06-28 New Ice Limited Biodegradable or compostable containers
EP2687543A1 (fr) * 2012-07-20 2014-01-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Hydrogel à base d'un mélange protéine-polysaccharides modifié chimiquement, procédé destiné à la fabrication d'un hydrogel PPB et applications en découlant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010002A1 (de) * 1990-03-29 1991-10-02 Alfred Linden Verwendung eines kunststoffes fuer bauprofile
DE19704379A1 (de) * 1996-03-29 1997-10-02 Eberhard Dipl Ing Schramm Unterzugverschalelement
US6050043A (en) * 1998-01-20 2000-04-18 Void Form International Ltd. Apparatus and method for supporting concrete beams, walls and the like
WO2001051557A1 (fr) * 2000-01-11 2001-07-19 E. Khashoggi Industries, Llc. Compositions thermoplastiques a base d'amidon comprenant un composant de charge particulaire
WO2002088245A1 (fr) * 2001-04-26 2002-11-07 Compopure Staerke Ag Procede de production d'emballages et de corps moules biodegradables
EP1327663A1 (fr) * 2002-01-11 2003-07-16 New Ice Limited Récipients biodégradables et compostables

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010002A1 (de) * 1990-03-29 1991-10-02 Alfred Linden Verwendung eines kunststoffes fuer bauprofile
DE19704379A1 (de) * 1996-03-29 1997-10-02 Eberhard Dipl Ing Schramm Unterzugverschalelement
US6050043A (en) * 1998-01-20 2000-04-18 Void Form International Ltd. Apparatus and method for supporting concrete beams, walls and the like
WO2001051557A1 (fr) * 2000-01-11 2001-07-19 E. Khashoggi Industries, Llc. Compositions thermoplastiques a base d'amidon comprenant un composant de charge particulaire
WO2002088245A1 (fr) * 2001-04-26 2002-11-07 Compopure Staerke Ag Procede de production d'emballages et de corps moules biodegradables
EP1327663A1 (fr) * 2002-01-11 2003-07-16 New Ice Limited Récipients biodégradables et compostables

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AVEROUS L ET AL: "Plasticized starch-cellulose interactions in polysaccharide composites", POLYMER, ELSEVIER SCIENCE PUBLISHERS B.V, GB, vol. 42, no. 15, July 2001 (2001-07-01), pages 6565 - 6572, XP004235360, ISSN: 0032-3861 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7967904B2 (en) 2002-01-11 2011-06-28 New Ice Limited Biodegradable or compostable containers
FR2924456A1 (fr) * 2007-12-03 2009-06-05 Conception De Realisation Et D Dispositif et procede pour former une reservation dans une dalle de beton
EP2067910A1 (fr) * 2007-12-03 2009-06-10 SCOREV-Société de Conception de Réalisation et de Vente Dispositif et procédé pour former une réservation dans une dale de béton
EP2687543A1 (fr) * 2012-07-20 2014-01-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Hydrogel à base d'un mélange protéine-polysaccharides modifié chimiquement, procédé destiné à la fabrication d'un hydrogel PPB et applications en découlant
WO2014013088A1 (fr) * 2012-07-20 2014-01-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Hydrogel obtenu à partir d'un mélange de polysaccharides et de protéines modifiés chimiquement, procédé de fabrication d'un hydrogel mpp et ses utilisations

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