GB2437280A - Concrete incorporating organic liquids or solids treated with super critical carbon dioxide - Google Patents

Concrete incorporating organic liquids or solids treated with super critical carbon dioxide Download PDF

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Publication number
GB2437280A
GB2437280A GB0607902A GB0607902A GB2437280A GB 2437280 A GB2437280 A GB 2437280A GB 0607902 A GB0607902 A GB 0607902A GB 0607902 A GB0607902 A GB 0607902A GB 2437280 A GB2437280 A GB 2437280A
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GB
United Kingdom
Prior art keywords
carbon dioxide
super critical
concrete
organic liquids
critical carbon
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.)
Withdrawn
Application number
GB0607902A
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GB0607902D0 (en
Inventor
Peter Hammond
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Individual
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Individual
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 Individual filed Critical Individual
Priority to GB0607902A priority Critical patent/GB2437280A/en
Publication of GB0607902D0 publication Critical patent/GB0607902D0/en
Publication of GB2437280A publication Critical patent/GB2437280A/en
Withdrawn legal-status Critical Current

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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
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/20—Waste materials; Refuse organic from macromolecular compounds
    • C04B18/22—Rubber, e.g. ground waste tires
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/06—Oxides, Hydroxides
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/02—Selection of the hardening environment
    • C04B40/0231—Carbon dioxide hardening
    • 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

Abstract

Organic liquids or solids whose carbon dioxide content has been enhances through their exposure to high pressure carbon dioxide are introduced into cement aggregate mixtures. The carbon dioxide may be in the super critical state. The organic solid may be vulcanised rubber chips which may be treated with super critical carbon dioxide for between 1 and 120 minutes. The vulcanised rubber chips are then added to a cement aggregate and water mix, the mix is then allowed to harden. The resultant concretes are mechanically stronger than those produced without the super critical carbon dioxide laden granules.

Description

<p>1 2437280 improved Concrete.</p>
<p>This invention relates to a method for producing improved concrete.</p>
<p>Background.</p>
<p>In its simplest form concrete is a tnixture of pastes aggregate and water. The paste is a mixture of water and cement which coats the surface of the fine or course aggregate particles. Through the chemical process of hydration the paste hardens and forms a rock like mass known as concrete. The pastes used in the formation of cernen.t may contain varying proportions of the hydroxides of calcium, magnesium, sodium, alluminium and other metal hydrates. When exposed to atmospheric carbon dioxide they slowly convert to carbonates and water further improving the mechanical properties of concrete. In ceramics and water this process can take many years to complete.</p>
<p>Water saturation in the pores, desirable for some aspects of concrete production can further slow the carbonation process. To enhance the rate of carbonation cured or partially cured concrete can be treated using supercritiCal carbon dioxide. Due to the high diffusivitY of supercritical carbon dioxide rapid penetration into the concrete matrix occurs ensuring enhanced availability of carbon dioxide throughout the formative concrete matrix. The availability of carbon dioxide throughout the matrix allows more rapid carbonation to occur with the end result that stronger, harder concretes are produced more quickly than in ordinary conditions. At present the supercritiCal carbon dioxide is introduced into the cured or partially cured cement matrices either by the action of a jet of superCritiCal carbon dioxide on the surface of the cement or by placing the cement in an autoclave into which is pumped superCritiCal carbon dioxide.</p>
<p>Essential technical features.</p>
<p>This method enhances and improves the delivery of superCritical carbon dioxide into a concrete by jptroduCiflg the superCritical carbon dioxide into the initial cement, aggregate, water mixing stage.</p>
<p>SuperCritical Carbon dioxide is carbon dioxide above its critical point i.e. a temperature of 374 K at a pressure of 74 Bar. It is not possible to introduce such a high pressure fluid directly into a concrete production system which is normally carried out at atmospheric pressure.</p>
<p>SurpriSifl8lY it is possible to mix supercritical carbon dioxide and high pressure carbon dioxide into a conventional concrete production system through the use of an intermediate carrier substance which can either be a liquid or a solid. This is complished by exploiting the ability of supercritical carbon dioxide to either dissolve in or become miscible with a range of organic liquids. In the case of solid carriers, the supetCTitil carbon dioxide can penetrate a wide range of solid organic materials or polymers and become retained within the structure and matrices of these organic solids. If the supercritical carbon dioxide is introduced into such organic liquids or solids in an autoclave above the critical point of carbon dioxide, and if the autoclave is rapidly decompressed a surprisingly large amount of the carbon dioxide is retained within the organic liquid or solid. The organic liquid or solid may then be incorporated into the mix of a concrete as it is being blended. The carbon dioxide retained in the organic liquid or solid is released into the mix as the concrete mix starts to cure. The presence of carbon dioxide within the concrete mix at this early stage ensures rapid carbonation, enhanced curing, improved mechanical properties and negates the need for post cure treatment with supercritiCal carbon dioxide.</p>
<p>Example.</p>
<p>Vulcanised rubber chips of sizes between 0.1mm and 50mm are placed within an autoclave and sealed. An excess of SupercritiCal carbon dioxide is pumped into the autoclave and left to equilibrate for between 1 minute and 120 minutes. After equilibration the autoclave is vented and unsealed. The vulcanized rubber chips are withdrawn from the autoclave and then added into a cement aggregate and water mix.</p>
<p>The resulting mix is then poured into position either in an open mould or within a shuttered gas porous enclosure to allow the curing I hardening of the concrete. The resultant concretes are mechanicallY stronger than those produced Without the supercritical carbon dioxide laden granules.</p>

Claims (1)

  1. <p>Claims 1. The introduction of organic liquids or solids whose carbon
    dioxide content has been enhanced through their exposure to high pressure carbon dioxide into cement aggregate mixtures.</p>
GB0607902A 2006-04-21 2006-04-21 Concrete incorporating organic liquids or solids treated with super critical carbon dioxide Withdrawn GB2437280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0607902A GB2437280A (en) 2006-04-21 2006-04-21 Concrete incorporating organic liquids or solids treated with super critical carbon dioxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0607902A GB2437280A (en) 2006-04-21 2006-04-21 Concrete incorporating organic liquids or solids treated with super critical carbon dioxide

Publications (2)

Publication Number Publication Date
GB0607902D0 GB0607902D0 (en) 2006-05-31
GB2437280A true GB2437280A (en) 2007-10-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0607902A Withdrawn GB2437280A (en) 2006-04-21 2006-04-21 Concrete incorporating organic liquids or solids treated with super critical carbon dioxide

Country Status (1)

Country Link
GB (1) GB2437280A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011033311A3 (en) * 2009-09-18 2011-05-05 Peter Hammond Improved materials
WO2012134928A1 (en) * 2011-04-01 2012-10-04 Chun Well Industry Co., Ltd. Method for producing improved rubberized concrete using waste rubber tires
US8536239B1 (en) 2011-05-02 2013-09-17 Chun Well Industry Co. Ltd. Method for producing improved rubberized concrete using waste rubber tires
WO2015136290A1 (en) * 2014-03-12 2015-09-17 Enviromate Limited Construction material and method of manufacturing the same
US20230118904A1 (en) * 2021-10-19 2023-04-20 Halliburton Energy Services, Inc. Enhanced Carbon Sequestration via Foam Cementing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113733352B (en) * 2021-04-08 2022-08-16 中国矿业大学 Method and device for preparing foam concrete by using supercritical carbon dioxide
CN114538850B (en) * 2022-03-09 2022-11-29 南京工业大学 Solid waste base lightweight aggregate based on biochar internal carbonization and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044293A1 (en) * 1996-05-20 1997-11-27 Materials Technology, Limited Hardened hydraulic cement, ceramic or coarse concrete aggregate treated with high pressure fluids
JPH11314979A (en) * 1998-05-07 1999-11-16 Sekisui Chem Co Ltd Production of cement hardened body
JP2000128663A (en) * 1998-10-27 2000-05-09 Nichiha Corp Production of wooden cement board
JP2000335947A (en) * 1999-03-25 2000-12-05 Sekisui Chem Co Ltd Artificial lightweight aggregate, its production and cement hardened product
WO2002090293A2 (en) * 2001-05-09 2002-11-14 Balmoral Technologies (Proprietary) Limited Method of making a finished product from a feedstock, a portland cement, and a thermosetting resin

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044293A1 (en) * 1996-05-20 1997-11-27 Materials Technology, Limited Hardened hydraulic cement, ceramic or coarse concrete aggregate treated with high pressure fluids
JPH11314979A (en) * 1998-05-07 1999-11-16 Sekisui Chem Co Ltd Production of cement hardened body
JP2000128663A (en) * 1998-10-27 2000-05-09 Nichiha Corp Production of wooden cement board
JP2000335947A (en) * 1999-03-25 2000-12-05 Sekisui Chem Co Ltd Artificial lightweight aggregate, its production and cement hardened product
WO2002090293A2 (en) * 2001-05-09 2002-11-14 Balmoral Technologies (Proprietary) Limited Method of making a finished product from a feedstock, a portland cement, and a thermosetting resin

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011033311A3 (en) * 2009-09-18 2011-05-05 Peter Hammond Improved materials
CN102574743A (en) * 2009-09-18 2012-07-11 Ccm研究有限公司 Improved materials
CN102574743B (en) * 2009-09-18 2014-10-01 Ccm研究有限公司 Improved materials
US9446985B2 (en) 2009-09-18 2016-09-20 Ccm Research Limited Method of treating cellulose material with CO2 or source thereof
WO2012134928A1 (en) * 2011-04-01 2012-10-04 Chun Well Industry Co., Ltd. Method for producing improved rubberized concrete using waste rubber tires
US8338506B2 (en) 2011-04-01 2012-12-25 Chun Well Industry Co., Ltd. Method for producing improved rubberized concrete using waste rubber tires
CN103443047A (en) * 2011-04-01 2013-12-11 铨吉企业有限公司 Method for producing improved rubberized concrete using waste rubber tires
CN103443047B (en) * 2011-04-01 2015-11-25 铨新化工科技股份有限公司 Waste rubber tire is utilized to manufacture the concrete method of modified form rubbery
US8536239B1 (en) 2011-05-02 2013-09-17 Chun Well Industry Co. Ltd. Method for producing improved rubberized concrete using waste rubber tires
WO2015136290A1 (en) * 2014-03-12 2015-09-17 Enviromate Limited Construction material and method of manufacturing the same
US20230118904A1 (en) * 2021-10-19 2023-04-20 Halliburton Energy Services, Inc. Enhanced Carbon Sequestration via Foam Cementing
US11859122B2 (en) * 2021-10-19 2024-01-02 Halliburton Energy Services, Inc. Enhanced carbon sequestration via foam cementing

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Publication number Publication date
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