WO2003084893A1 - Ciment, adjuvant de beton et son procede de production - Google Patents

Ciment, adjuvant de beton et son procede de production Download PDF

Info

Publication number
WO2003084893A1
WO2003084893A1 PCT/JP2002/003551 JP0203551W WO03084893A1 WO 2003084893 A1 WO2003084893 A1 WO 2003084893A1 JP 0203551 W JP0203551 W JP 0203551W WO 03084893 A1 WO03084893 A1 WO 03084893A1
Authority
WO
WIPO (PCT)
Prior art keywords
concrete
cement
admixture
slate
improved
Prior art date
Application number
PCT/JP2002/003551
Other languages
English (en)
Japanese (ja)
Inventor
Chisato Yamamoto
Tadashi Fujiwara
Original Assignee
Kohyu Sangyo Yugen Kaisha
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 Kohyu Sangyo Yugen Kaisha filed Critical Kohyu Sangyo Yugen Kaisha
Priority to PCT/JP2002/003551 priority Critical patent/WO2003084893A1/fr
Publication of WO2003084893A1 publication Critical patent/WO2003084893A1/fr

Links

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
    • C04B18/12—Waste materials; Refuse from quarries, mining or the like
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/10—Clay
    • 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

  • a fresh concrete can be obtained by mixing an admixture composed of fine particles of natural slates into a cement or by mixing a predetermined amount into a concrete. Improvement of fluidity, suppression of thermal strain by reducing heat of hydration ; suppression of cracking, enhancement of long-term strength of hardened concrete, improvement of water tightness, suppression of aggregate reaction, chemical resistance
  • the present invention relates to an admixture used for producing high-quality concrete, such as improvement of the quality of admixture, and a method for producing the same.
  • the current concrete used for various structures has the following drawbacks due to workability and characteristics.
  • the watertightness of concrete differs depending on the composition of cement and water.If the unit water volume is increased to obtain fluidity, watertightness is impaired and durability is reduced. I do.
  • Concrete may have an alkaline-aggregate reaction.
  • This aggregate reaction is a chemical reaction caused by reactive aggregates and cement and other aggregates, and the reaction causes the aggregate to expand, causing harmful cracks in the concrete. There is something to bring.
  • the concrete that constitutes the skeleton may be chemically eroded by acids, salts, etc., causing significant expansion and risk of destruction. Has been viewed as a problem.
  • an object of the present invention is to provide a cement, a concrete admixture, and a method for producing the same, which can compensate for each of the disadvantages. Disclosure of the invention
  • the present invention has been made in view of the above problems, and is characterized in that it is made of fine particles obtained by crushing a rock having flat crushability such as a natural plate or slate, to a required fineness.
  • the above problem is solved by providing a cement-concrete admixture.
  • another invention is a cement characterized in that a rock having flat friability, such as natural slate or slate, is crushed to form an admixture composed of fine particles having a required fine particle size.
  • the present invention provides a method for producing a concrete admixture, and provides a method for producing the cement and the concrete admixture to solve the above problems.
  • a cement and a concrete admixture composed of fine particles obtained by crushing a flat crushable rock and finer than about 100 mesh are mixed with the cement in a predetermined amount.
  • the fresh concrete can be formed by forming a concrete using the mixture obtained, or by mixing the admixture during the formation of the concrete. With the same fluidity and the same slump, the unit water volume can be reduced, bleeding is reduced and the concrete is more uniform .
  • the hydration reaction of cement generates heat of hydration and causes temperature cracking.
  • the heat of hydration decreases in proportion to the amount used.
  • the occurrence of temperature cracks can be suppressed.
  • Rocks with flat friability such as natural slats, contain silicic acid, and calcium silicate water is formed by hydration of canolethium hydroxide produced by hydration of cement. Increases the long-term strength of cured concrete by the pozzolanic reaction that produces hydrates.
  • the reduction of bleeding due to the incorporation of this admixture and the densification of the structure of the hardened concrete due to the pozzolanic reaction can improve the watertightness of the hardened concrete. It also increases resistance to chemical erosion.
  • Water absorption 48 hours water absorption (percentage by mass)
  • Water permeability 24 hours water permeability
  • the water absorption and water permeability of the cured concrete were determined as shown in Table 3. As the mixing ratio of the admixture increases, the water absorption and the water permeability decrease, and the watertightness increases. This is because the structure of the hardened concrete becomes denser, and it can be seen that the durability is also improved.
  • the admixture uses fine particles of a natural plate, and its components are shown in Table 4 below. Table 4
  • rocks having flat friability such as natural slate and slate
  • natural slate is particularly used for the following reasons. Can be used better.
  • the raw natural slate is put into the hopper, pulled out from the lower part of the hopper by the vibration feeder, and put into the primary crusher.
  • the primary crusher Using a single or toggle crusher as the primary crusher, crush it to less than 100 mm and put the intermediate crushed material into another hopper using a belt conveyor. .
  • the above-mentioned intermediate crushed material is pulled out by a vibrating feeder, and is introduced into a vertical rotary centrifugal crusher (auto fall mill), which is about 100 mesh.
  • a vertical rotary centrifugal crusher auto fall mill
  • a natural slate is a rock that has the property of flat exfoliation.
  • a strong crushing force is applied at right angles, and the impact further breaks it into fine particles.
  • This action acts on the natural plate, which is an intermediate crushed material, by high-speed rotation, and the intermediate crushed material is turned into fine particles finer than about 100 mesh, which is used as an admixture.
  • auto fall mill auto fall mill
  • a cyclone air separator can be used, and the product is classified into predetermined fine powder particles.
  • the fluidity of the fresh concrete is increased, and the cracking of the temperature is suppressed. Become.
  • the long-term strength of the hardened concrete is increased, and the watertightness is improved, so that a high-quality concrete structure can be obtained.
  • the present invention exerts excellent effects in practical use, for example, by suppressing the reaction of alkali-aggregate and producing concrete with improved chemical resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

La présente invention concerne l'amélioration de la fluidité de béton frais, la suppression d'une fissuration thermique causée par une diminution de chaleur d'hydratation, l'amélioration de la résistance à long terme de béton durci, l'amélioration de l'étanchéité à l'eau, la suppression de la réaction d'agrégat alcalin et l'amélioration de la résistance chimique, permettant de produire un béton de bonne qualité. De la pierre telle que de l'ardoise naturelle ou de la pierre d'argile présentant une friabilité à plat est broyée afin de produire un adjuvant composé de petites particules de taille souhaitée.
PCT/JP2002/003551 2002-04-09 2002-04-09 Ciment, adjuvant de beton et son procede de production WO2003084893A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/003551 WO2003084893A1 (fr) 2002-04-09 2002-04-09 Ciment, adjuvant de beton et son procede de production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/003551 WO2003084893A1 (fr) 2002-04-09 2002-04-09 Ciment, adjuvant de beton et son procede de production

Publications (1)

Publication Number Publication Date
WO2003084893A1 true WO2003084893A1 (fr) 2003-10-16

Family

ID=28694864

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/003551 WO2003084893A1 (fr) 2002-04-09 2002-04-09 Ciment, adjuvant de beton et son procede de production

Country Status (1)

Country Link
WO (1) WO2003084893A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102167532A (zh) * 2010-12-15 2011-08-31 中国矿业大学(北京) 混凝土掺和料及煅烧煤矸石制备混凝土掺和料的方法
CN107117845A (zh) * 2017-06-28 2017-09-01 重庆大学 一种抑制混凝土碱硅酸反应的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859803A (ja) * 1981-10-07 1983-04-09 宵田　清悟 無機質成形体の製造方法
JPH0733492A (ja) * 1993-07-19 1995-02-03 Sekisui Chem Co Ltd 水硬性無機質組成物
JP2000169201A (ja) * 1998-12-02 2000-06-20 Asia Seratekku:Kk セメント用混和材の製造方法および該混和材を使用した組成物
JP2001089207A (ja) * 1999-09-13 2001-04-03 Asao Ishimaru 砕石工場から排出されるスラッジの中に含まれる微砂を取り出し、これをコンクリート用混和材として利用する方法。

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859803A (ja) * 1981-10-07 1983-04-09 宵田　清悟 無機質成形体の製造方法
JPH0733492A (ja) * 1993-07-19 1995-02-03 Sekisui Chem Co Ltd 水硬性無機質組成物
JP2000169201A (ja) * 1998-12-02 2000-06-20 Asia Seratekku:Kk セメント用混和材の製造方法および該混和材を使用した組成物
JP2001089207A (ja) * 1999-09-13 2001-04-03 Asao Ishimaru 砕石工場から排出されるスラッジの中に含まれる微砂を取り出し、これをコンクリート用混和材として利用する方法。

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102167532A (zh) * 2010-12-15 2011-08-31 中国矿业大学(北京) 混凝土掺和料及煅烧煤矸石制备混凝土掺和料的方法
CN107117845A (zh) * 2017-06-28 2017-09-01 重庆大学 一种抑制混凝土碱硅酸反应的方法
CN107117845B (zh) * 2017-06-28 2021-02-26 重庆大学 一种抑制混凝土碱硅酸反应的方法

Similar Documents

Publication Publication Date Title
CN110526628B (zh) 一种大掺量湿磨磷固废超缓凝胶凝材料的制备方法
CN110590198B (zh) 一种钨尾矿胶凝材料及其制备方法
US20100006010A1 (en) Matrix for masonry elements and method of manufacture thereof
KR102028229B1 (ko) 혼화재(scm)의 제조 방법
EP2831015B1 (fr) Composition de liant comprenant de la cendre volante de lignite
CN111620624A (zh) 一种自密实混凝土及其制备方法
CN111499329B (zh) 一种含有钢渣尾泥的蒸压灰砂砖及其制备方法
Heidari et al. Reusing waste ceramic and waste sanitary ware in concrete as pozzolans with nano-silica and metakaolin
KR101138243B1 (ko) 산업폐기물을 이용한 레미콘 조성물
JP2002121053A (ja) セメント、コンクリート混和材及びその製造方法
KR102485927B1 (ko) 페로니켈 슬래그 미분말을 이용한 저발열 혼합계 시멘트의 제조 방법 및 이를 이용하여 제조되는 저발열 콘크리트 조성물
JPH10114556A (ja) 再生セメントの製造方法及び再生セメント
CN110937863A (zh) 一种可循环水泥混凝土及其制备方法
WO2003084893A1 (fr) Ciment, adjuvant de beton et son procede de production
JP4786272B2 (ja) 軽量気泡コンクリートの製造方法
CN115159908A (zh) 一种为金尾矿为集料的湿喷混凝土及制备方法
KR102030627B1 (ko) 페로니켈 슬래그와 발파암 혼합잔골재를 이용한 콘크리트 조성물 제조방법
CN112250365A (zh) 一种再生混凝土的制备方法
KR20170079661A (ko) 산업폐기물을 이용한 친환경 레미콘 조성물
JP6826456B2 (ja) 水中不分離性コンクリート用膨張材、水中不分離性コンクリート組成物およびその硬化体
Stanescu et al. Brick and glass waste valorisation in the manufacture of aerated autoclaved concrete
JP6134278B2 (ja) 軽量気泡コンクリート
JP5483336B2 (ja) モルタル又はコンクリート用細骨材、及びこれを用いたモルタル、コンクリートの製造方法
RU2779939C1 (ru) Сырьевая смесь для производства силикатного кирпича
JPS635243B2 (fr)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA CN CZ EE HU IS KR LT NO NZ PL RO SI SK UA US YU

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase