WO2014188034A1 - Résidu de sanitaires pour l'élaboration de ciments, procédé d'obtention et ciments contenant ledit résidu - Google Patents

Résidu de sanitaires pour l'élaboration de ciments, procédé d'obtention et ciments contenant ledit résidu Download PDF

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Publication number
WO2014188034A1
WO2014188034A1 PCT/ES2014/070406 ES2014070406W WO2014188034A1 WO 2014188034 A1 WO2014188034 A1 WO 2014188034A1 ES 2014070406 W ES2014070406 W ES 2014070406W WO 2014188034 A1 WO2014188034 A1 WO 2014188034A1
Authority
WO
WIPO (PCT)
Prior art keywords
cement
cements
sanitary
waste
sanitary waste
Prior art date
Application number
PCT/ES2014/070406
Other languages
English (en)
Spanish (es)
Inventor
María Isabel SANCHEZ DE ROJAS GOMEZ
Moises Frias Rojas
Cesar Medina Martinez
Eloy ASENSIO DE LUCAS
Original Assignee
Consejo Superior De Investigaciones Científicas (Csic)
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 Consejo Superior De Investigaciones Científicas (Csic) filed Critical Consejo Superior De Investigaciones Científicas (Csic)
Publication of WO2014188034A1 publication Critical patent/WO2014188034A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/16—Waste materials; Refuse from building or ceramic industry
    • C04B18/165—Ceramic waste
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention is framed in the construction sector, and more specifically in the cement industry, which forced by a foreseeable decrease in the materials currently used and a hardening of national and international environmental policies will demand alternative products, which present technological advantages , environmental and economic viable for the sector.
  • Sanitary waste can have two origins: a) Of the ceramic sanitary ware industry that are constituted by those products rejected for sale that do not meet the requirements demanded by the manufacturer and; b) Landfills or recycling plants that are constituted by those products from the rehabilitation or renovation of homes, industries, etc.
  • sanitary waste in the manufacture of cements would allow the concept of sustainability to be introduced in the construction sector, a sector that is traditionally considered as fearful of the environment, thus being in line with European and national policies sustainable development.
  • the present invention describes a new use of sanitary waste for the manufacture of common cements and white cements.
  • An object of the invention is a waste based on sanitary ceramic products directly from the ceramic sanitary or landfill industry, which has a pozzolanic activity and a particle size of less than 63 ⁇ . It has been observed that the fineness of the material is decisive in its pozzolanic activity.
  • Another object of the invention is the process for obtaining sanitary waste of the invention, which comprises the following steps:
  • Another object of the invention is the common or white cement, hereinafter cement of the invention, which comprises the sanitary waste of the invention as a component in said cement in a percentage of between 0.1% and 55%.
  • the common cement comprises the sanitary waste as the main component in said cement in a percentage of between 6% and 55%.
  • the common cement comprises the sanitary waste as an additional minor component in said cement in a percentage of between 0.1% and 5%.
  • the white cements manufactured comprise the sanitary waste as the main component in said cement in a percentage of between 6% and 55% or as an additional minor component in said cement in a percentage of between 0.1% and 5% and have a value of the parameter L * of the CIELAB coordinates greater than or equal to 85.
  • Another object of the invention is the process for obtaining the cement of the invention, hereinafter the method of the invention, which comprises the following steps:
  • the present invention is based on the fact that it has been observed that from sanitary waste (Figure 1) it is possible to obtain a product that acts as a pozzolanic material useful as an additive for the manufacture of cements when prepared as a homogeneous product, with a fine grain size less than 63 ⁇ (particle size similar to cement) ( Figure 2).
  • This waste can come from the ceramic sanitary ware industry, constituted by those products rejected for sale that do not meet the requirements demanded by the manufacturer, and from landfills or recycling plants, constituted by those products from rehabilitation or housing, industry, etc. reforms and can thus offer a commercial outlet to this waste material.
  • This sanitary waste ( Figure 2), is introduced into the cements as the main component (6-55% by mass) and is framed within natural calcined pozzolans (Q) and also as a minor component (percentages below 5% by mass) , provided it is not already included as a component controlling.
  • Q natural calcined pozzolans
  • this product different types of cements can be obtained, depending on the dosages made, being also possible for the use of white cements.
  • calcined natural pozzolans where according to the standard LINEEN 197-1: 201 1 (Spanish Standard UNE-EN 197-1: 201 1 "Cement. Part 1: Composition, specifications and conformity criteria for common cements ", December 201 1), calcined natural pozzolans (Q) are defined as materials of volcanic origin, clays, slates or sedimentary rocks activated by thermal treatments and in accordance with section 5.2.3.1. (Generalities of pozzolanic materials P, Q).
  • UNE-EN 197-1 201 1 standard, they could be used as the main component (percentages up to 55% by mass) in the manufacture of cements CEM ll / AQ, CEM ll / BQ, CEM IV / A, CEM IV / B, CEM V / A and CEM V / B, and can also be used as a minor component (percentages below 5% by mass) giving rise to any of the main types of cement (CEM I, CEM II, CEM III, CEM IV and CEM V) as long as it is not already included as a majority component.
  • homologous white cements type BL ll / AQ, BL ll / BQ, IV can be obtained depending on the dosages made / A, BL IV / B and BL V or cement of any type (BL I, BL II, BL III, BL IV and BL V) if used as minor components.
  • an object of the invention is a sanitary waste useful for the manufacture of cements, hereinafter a sanitary waste of the invention, which has a pozzolanic activity and a particle size suitable for this purpose with a particle size of less than 63 ⁇ .
  • Another object of the invention is the procedure for obtaining the waste of toilets of the invention, hereinafter procedure for obtaining the waste of toilets of the invention, which comprises the following steps:
  • the cements with which the invention was made are a gray Portland cement of resistant class 42.5 R and a common white cement of resistant class 52.5 R according to UNE-EN 197-1: 201 1, although it is not limiting;
  • the difference in the use of one cement or another will influence the final performance, and the final behavior of the invention can be adapted to the characteristics of the cement used.
  • Another object of the invention is cement, hereinafter cement of the invention, which comprises the sanitary waste of the invention as a component in said cement in a percentage of between 0.1% and 55%.
  • the common cement comprises the sanitary waste as the main component in said cement in a percentage of between 6% and 55%.
  • the common cement comprises the sanitary waste as an additional minor component in said cement in a percentage of between 0.1% and 5%.
  • the white cements manufactured comprise the sanitary waste as the main component in said cement in a percentage of between 6% and 55% or as an additional minor component in said cement in a percentage of between 0.1% and 5% and have a value of the parameter L * of the CIELAB coordinates greater than or equal to 85.
  • Another object of the invention is the process for obtaining the cement of the invention, hereinafter procedure for obtaining the cement of the invention, which comprises the following steps:
  • Another particular object of the invention is the process for obtaining cement where the proportion between sanitary waste and the cement of a) meets the following formula: mtotal - m C emento m re siduo
  • Figure 1 Initial aspect of the sample of ceramic sanitary ware.
  • Figure 4 Graph showing the flexural strengths obtained in mortars made with 20% and 30% dosing at the ages indicated.
  • a mixture of cement with sanitary waste is carried out as a component.
  • Sanitary waste (Figure 1), could act in the cements as the main component (6-55% by mass) and would be framed within natural calcined pozzolans (Q) and also as a minor component (percentages below 5% by mass) , provided that it is not already included as a major component, according to UNE-EN 197-1: 201 1.
  • cements of type CEM ll / AQ can be obtained depending on the dosages made , EMC ll / B- Q, CEM IV / A, CEM IV / B, CEM V / A and CEM V / B, or cements of any type (CEM I, CEM II, CEM III, CEM IV and CEM V) if used as minority components.
  • homologous white cements type BL ll / AQ, BL ll / BQ, IV / A, BL IV / B and BL V or cements of any type can be obtained (BL I , BL II, BL III, BL IV and BL V) if used as minor components, according to UNE 80305: 2012 and UNE-EN 197-1: 201 1.
  • the chemical composition of the sanitary waste thus obtained is characterized by being essentially composed of silicon dioxide (> 65% by mass) and aluminum oxide (> 20%), as well as iron oxide and other minor oxides. In addition, they are characterized by having a reactive silicon dioxide content greater than 25% by mass (> 45% by mass).
  • type ll / BQ and type IV / A that contain this sanitary material as a main component in a percentage between 6% - 20%, 21% - 30% and 1 1% - 30% by mass, respectively, could be used to manufacture Portland cements with a strength class 32.5 (N and R) and 42.5 (N and R), according to the mechanical requirements set out in Table 3 of the UNE EN standard 197-1: 2011.
  • portland cements type ll / BQ and type IV / A could be used to manufacture cements of a strength class 32.5 (N and R), 42.5 N, complying with the requirements mechanics established in the table indicated above.
  • CEM IV / B and CEM V / B type cements resistant classes of 32.5 N could be achieved.
  • type ll / AQ type ll / BQ and type IV / A containing as main component this white sanitary ceramic material in a percentage between 6% - 20, 21% - 35% and 1 1% - 35% by mass, respectively, could be used to manufacture white cements with a strength class 32.5 (N and R), 42.5 (N and R) and 52.5 (N and R), according to the mechanical requirements established in Table 3 of the UNE EN 197-1: 2011 standard.
  • BL IV / B and BL V / B type cements can be achieved resistant classes of 32.5 N. The results obtained with different cements are shown in Figures 3 and 4 manufactured with the toilet waste.
  • UNE EN 197-1: 201 1 standard establishes that CEM IV type pozzolanic cements must meet the property of pozzolanicity, according to the test described in UNE EN 196-5: 201 1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

La présente invention concerne un résidu issu de l'industrie céramique de sanitaires ou de décharges ou d'usines de recyclage comme composant pouzzolanique de ciments. L'invention porte également sur un procédé d'obtention de ces résidus de sanitaires et sur un autre procédé de fabrication de ciments (ciments communs et ciments blancs) faisant appel à ces résidus. Les résidus de ce type sont récupérés directement au niveau de l'industrie qui fabrique la céramique de sanitaires, dans des décharges ou dans les usines de recyclage, où leur gestion a lieu. L'invention peut donner une éventuelle vie commerciale à ces résidus.
PCT/ES2014/070406 2013-05-20 2014-05-19 Résidu de sanitaires pour l'élaboration de ciments, procédé d'obtention et ciments contenant ledit résidu WO2014188034A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201330715A ES2525416B1 (es) 2013-05-20 2013-05-20 Residuo de sanitarios para la elaboración de cementos, procedimiento de obtención y cementos que lo comprenden
ESP201330715 2013-05-20

Publications (1)

Publication Number Publication Date
WO2014188034A1 true WO2014188034A1 (fr) 2014-11-27

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Country Status (2)

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ES (1) ES2525416B1 (fr)
WO (1) WO2014188034A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220024819A1 (en) * 2020-07-21 2022-01-27 Vhsc, Ltd. Mixed landfill and pond coal combustion byproducts (ccbs) and related techniques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998016483A1 (fr) * 1996-10-16 1998-04-23 Leed, Natalie, Lynette, Tira Compositions pour beton et produits en beton fabriques a partir de telles compositions
ES2224878A1 (es) * 2003-08-22 2005-03-01 Asociacion De Investigacion De Industrias De La Construccion Aidico. Procedimiento de reciclado de residuos procedentes de lodos ceramicos como adiciones para cementos de alta resistencia.
US20100224101A1 (en) * 2009-03-05 2010-09-09 Cummings Robert S Method for recycling construction and demolition fines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998016483A1 (fr) * 1996-10-16 1998-04-23 Leed, Natalie, Lynette, Tira Compositions pour beton et produits en beton fabriques a partir de telles compositions
ES2224878A1 (es) * 2003-08-22 2005-03-01 Asociacion De Investigacion De Industrias De La Construccion Aidico. Procedimiento de reciclado de residuos procedentes de lodos ceramicos como adiciones para cementos de alta resistencia.
US20100224101A1 (en) * 2009-03-05 2010-09-09 Cummings Robert S Method for recycling construction and demolition fines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220024819A1 (en) * 2020-07-21 2022-01-27 Vhsc, Ltd. Mixed landfill and pond coal combustion byproducts (ccbs) and related techniques
US11795105B2 (en) * 2020-07-21 2023-10-24 Vhsc, Ltd. Mixed landfill and pond coal combustion byproducts (CCBs) and related techniques

Also Published As

Publication number Publication date
ES2525416A1 (es) 2014-12-22
ES2525416B1 (es) 2015-11-27

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