WO2008062580A1 - Heavy weight aggregates - Google Patents
Heavy weight aggregates Download PDFInfo
- Publication number
- WO2008062580A1 WO2008062580A1 PCT/JP2007/063083 JP2007063083W WO2008062580A1 WO 2008062580 A1 WO2008062580 A1 WO 2008062580A1 JP 2007063083 W JP2007063083 W JP 2007063083W WO 2008062580 A1 WO2008062580 A1 WO 2008062580A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- particles
- aggregate
- heavy
- mixing
- heavy aggregate
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/04—Concretes; Other hydraulic hardening materials
- G21F1/042—Concretes combined with other materials dispersed in the carrier
- G21F1/047—Concretes combined with other materials dispersed in the carrier with metals
-
- 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
- C04B18/14—Waste materials; Refuse from metallurgical processes
-
- 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
- C04B14/30—Oxides other than silica
- C04B14/308—Iron oxide
-
- 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
- C04B14/34—Metals, e.g. ferro-silicon
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/0031—Heavy materials, e.g. concrete used as ballast material
-
- 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 relates to a heavy aggregate used for heavy concrete such as a wave-dissipating block and a radiation blocking wall, and heavy mortar.
- Heavy concrete is concrete having a unit volume weight larger than usual, and is used for wave-dissipating blocks, concrete for revetments, radiation shielding walls, bridge weights, and the like.
- magnetite and hematite iron ores have been used in many cases, but it is becoming difficult to obtain high quality heavy aggregates. This is also not preferable from the viewpoint of environmental considerations.
- slags with high iron content such as electric furnace oxidation slag are also used. Many have a density of less than 4 gZ cm 3 and it is difficult to obtain a heavy aggregate with sufficient density. is there.
- Patent Document 1 Japanese Patent Laid-Open No. 5-319880
- Patent Document 2 JP-A-6-024813
- Patent Document 3 proposes to use steel fine particles for shot blasting having a sieve nominal size of 2.5 mm or 0.15 mm as fine aggregates of heavy concrete with particle size adjustment.
- the commercial application has been advancing because it is extremely costly to adjust the particle size by blending expensive shot blasting steel fine particles, which are manufactured with various sizes of uniform particle size.
- As an alternative material for heavy aggregates for heavy concrete it has been proposed to use granular pig iron separated from granulated blast furnace slagka (for example, patents) (Ref. 4).
- these fine aggregates for heavy concrete are effective as fine aggregates for concrete used together with coarse aggregates.
- these fine aggregates for heavy concrete use only fine aggregates.
- Patent Document 3 JP-A-2-172846
- Patent Document 4 Japanese Patent Laid-Open No. 2004-210574
- the present invention provides, at a low cost, a heavy aggregate having a suitable particle size and density as a fine aggregate of heavy concrete or heavy mortar.
- the present invention provides a heavy fine aggregate useful not only for heavy concrete used with coarse aggregate but also for heavy mortar. Means for solving the problem
- Aggregate containing at least one of metallic iron, spherical particles out of all particles are 20% or more, and particles passing through a sieve with a nominal size of 0.1 mm are mass out of all particles.
- the percentage is 10% to 20%, the inventors have obtained knowledge that a remarkably good mortar flow can be obtained.
- the present invention provides at least one of FeO, Fe 2 O, and metallic iron as main constituent components.
- the total particle size is 20% or more of the spherical particles, and the particles passing through the sieve with a nominal size of 0.15 mm are 10% to 20% by mass of the total particles.
- the present invention provides a heavy aggregate characterized by the above.
- the heavy aggregate of the present invention is characterized by including a hot scarf of a recycled material generated in the steel slab surface cutting process, and mill scale and steelmaking converter dust generated in the steelmaking rolling process. It is also characterized by being obtained by mixing a hot scarf with at least one selected from coarse particles sieved with a particle size of 50 m and granular pig iron separated from granulated blast furnace slag. .
- the hot scarf and the mill scale of recycled material generated in the steelmaking rolling process can be obtained by mixing in a volume ratio of 100: 0 to 30:70. Obtained by mixing sieve powder with a particle size of 50 ⁇ m and the separated coarse particles in a mixing volume ratio of 100: 0 to 70:30, hot scarf and granulated blast furnace Slag force It is also characterized by being obtained by mixing the separated granular pig iron with a mixing volume ratio in the range of 100: 0 to 70:30.
- the heavy aggregate of the present invention is divided into a mill scale generated in a steelmaking rolling process, a coarse fraction screened with a particle size of 50 m in steelmaking converter dust, and a granulated blast furnace slag. It is also characterized in that it is obtained by mixing at least two kinds selected from the separated granular pig iron, and the mixing ratio of the mill scale, the converter dust coarse particles, and the granular pig iron is each mass. It is also characterized by 20-70%, 20-50%, and 0-40% as a percentage.
- the heavy aggregate of the present invention has an appropriate particle size distribution required for fine aggregates of concrete and mortar, and appropriately contains spherical particles, so that it has an appropriate fluidity for the fresh properties of concrete and mortar.
- ⁇ It can give a strong spirit, and can provide a sufficient density as a heavy aggregate with a density of 4gZcm 3 or more. Furthermore, because it is obtained by mixing recycled materials generated in the steelmaking process, it is effective as an alternative to iron ore aggregates, which are expensive natural resources that are feared for resource depletion.
- FIG. 1 is a graph showing the relationship between the mixing ratio of hot scarf (HS) and mill scale (MS) and mortar flow. (Example 3)
- FIG. 2 A diagram showing the relationship between the mixing ratio of hot scarf (HS) and mill scale (MS) and unit volume mass of mortar. (Example 3)
- the heavy aggregate of the present invention refers to an aggregate having a surface dry density of 4 gZcm 3 or more.
- the heavy aggregate of the present invention has at least one of FeO, Fe 2 O, and metallic iron as main components.
- the surface dry density of the aggregate is not 4gZcm 3
- the Fe O force is 5% or more when the constituent elements are determined in terms of oxides by fluorescent X-ray analysis, and the surface dry density of the heavy aggregate at this time is 4.5 g / c.
- the surface dry density of the heavy aggregate of the present invention is preferably 4.5 g / cm 3 or more.
- the heavy aggregate has a large density difference from the cement paste, the aggregate and the paste are easily separated when placing concrete or mortar. Therefore, fluidity needs to be ensured by the shape of heavy aggregate.
- the heavy aggregate of the present invention was used in a concrete mortar with high fluidity because it contains 20% or more of spherical particles (hereinafter sometimes simply referred to as “spherical particles”) among all particles. Sometimes it can be placed without separation from cement paste. If the spherical particles are less than 20%, aggregate and paste may be separated when placing concrete or mortar.
- the optimum particle size of the fine aggregate used for concrete and mortar varies depending on the shape of the aggregate, surface roughness, blending, and the like.
- the particle size distribution is specified as shown in Table 1, and particles passing through a sieve with a nominal size of 0.15 mm have a mass percentage of 2% or less. 15%.
- the JIS standard (A 5011-4; Non-Patent Document 2) for electric furnace oxidation slag aggregates shows that better concrete properties can be obtained by increasing the amount of fine particles.
- Patent Document 3 shows that steel fine particles for shot blasting are blended and used as fine aggregates for heavy concrete.
- JASS5 The Architectural Institute of Japan Architectural Construction Standard Specification 5 Reinforced Concrete Work
- the details of heavy-weight aggregate for obtaining good fresh properties of concrete and mortar are only adjusted to satisfy the particle size distribution specified in The fine particle size distribution has already been studied.
- the inventor examined the particle size distribution of the heavy aggregate for obtaining a good mortar flow in detail, and found the optimum particle size distribution shown in Table 1. That is, the heavy aggregate of the present invention is characterized in that particles passing through a sieve having a nominal size of 0.15 mm are 10% to 20% in terms of mass percentage of all particles. When particles passing through a sieve with a nominal size of 0.15 mm are less than 10% by mass or more than 20% of the total particles, sufficient mortal flow is not obtained, or between aggregate and cement paste Separation may occur.
- Non-Patent Document 1 Japanese Industrial Standard JIS A 5005 Crushed stone and sand for concrete
- Non-Patent Document 2 Japanese Industrial Standard JIS A 5011 -4 Slag aggregate for concrete Part 4: Electric furnace oxidation slag aggregate
- the particles passing through a sieve having a nominal size of 1.2 mm are 70% to 90% in terms of mass percentage of all particles. Nominal dimension 1. When particles passing through a 2mm sieve are less than 70% by mass or more than 90% of the total particles, sufficient mortar flow is not obtained, or aggregate and cement paste Separation may occur. Furthermore, it is preferable that the heavy aggregate of the present invention is obtained by mixing recycled materials generated in the steelmaking process.
- inclusions such as A1 are continuously deposited on the surface layer in the longitudinal direction of the steel slab by the molten steel injection flow into the mold.
- the surface layer of this steel slab The hot scarf of recycled material generated in the process of removing and removing existing materials contains FeO, Fe 2 O, and metallic iron as the main constituent components, and the constituent elements are converted to oxides by fluorescent X-ray analysis.
- the surface dry density is 4.8 gZcm 3 or more.
- Particles occupy about 70%, and particles passing through a sieve with a nominal size of 0.15 mm are in the range of 10% to 20% by mass of the total particles, and are used as they are as the heavy aggregate of the present invention. be able to.
- this recycled material in a mixture with other recycled materials that generate too much.
- the coarse powder is sieved at 50 m, it can be mixed with the hot scarf 70 up to the volume ratio of the coarse powder converter dust 30. If the coarse powdered converter dust is further mixed, the particles passing through the sieve V with a nominal size of 0.15 mm exceed 20% by mass of the total particles, so that sufficient mortar flow may not be obtained. is there.
- Granular pig iron separated in the pulverization process such as blast furnace granulated slag is also composed mainly of metallic iron and has a surface dry density of 4.8 g / cm 3 or more, and contains approximately 50% of spherical particles. It is a recycled material that can be mixed with hot scarves.
- the hot scarf 70 can be mixed up to a volume ratio of granular pig iron 30. If granular pig iron is further mixed, the particles passing through a sieve with a nominal size of 0.15 mm are less than 10% by mass of the total particles, so that sufficient mortar flow may not be obtained. .
- the mill scale of the recycled material generated in the steelmaking rolling process also contains FeO, Fe 2 O, and metallic iron as the main constituents, and the constituent elements were determined in terms of oxides by fluorescent X-ray analysis.
- the surface dry density is 4.8 gZcm 3 or more.
- the present inventor mixed hot scarves and mill scales at various mixing ratios, and examined their suitability as heavy aggregates.
- volume ratio of mill scale 70 to hot scarf 30 It was confirmed that mixing was possible. If mill scale is further mixed, the proportion of spherical particles will be less than 20%, fluidity may not be ensured, and sufficient mortar flow may not be obtained. Furthermore, when the unit water volume is increased to obtain mortar flow, the aggregate and cement paste may be separated.
- the mixing volume ratio of the hot scarf and the mill scale is 40:60, or the ratio of the hot scarf is larger than that, it is more preferable because the mortar force can escape and the unit volume mass of the mortar can be increased immediately.
- Spherical particles are literally particles that are nearly spherical.
- (1) when a solid is melted into a liquid state by heat and then cooled and solidified in the air, the surface area per volume is minimized.
- (2) Non-spherical particles
- the fine particles deposited from the powder or dissolved solution may bond around the core and grow into a shape close to a sphere.
- (3) particles with a continuous shape from spherical to non-spherical are generated, but in the case of (1), particles with an intermediate shape are not generated.
- the hot scarf is a recycled material generated in the process of removing and removing the surface layer inclusions in the steel slab, and spherical particles are generated in the generation process (1).
- Coarse powder converter dust and granular pig iron also contain spherical particles, but the formation process is considered to include not only (1) but also (2).
- the weight aggregate of the present invention requires that the "spherical particles" of all the particles must be 20% or more. It is preferably 20% or more of the particles.
- [Strain unevenness] [Perimeter of particle outline] Z [Diameter of the same circle as the area of particle outline] That is, the shadowing force of the scanning electron microscope (SEM) image Except for particles that can be judged to be hemispherical, particles that are clearly nearly spherical are processed and analyzed.
- the image processing may be performed using general image processing software [for example, Adobe Photoshop (registered trademark made by ADOBE SYSTEMS INCORPORATED)]. First, create a figure with only outlines by removing the shadows from the image of particles close to a sphere, The area of the figure and the perimeter of the contour are obtained.
- the heavy aggregate of the present invention is separated from the mill scale generated in the steelmaking rolling process, the coarse fraction screened with a particle size of 50 m in the steelmaking converter dust, and the granulated blast furnace slag. It can also be obtained by mixing at least two kinds of selected granular pig iron.
- the mill scale, the converter dust coarse fraction, and the granular pig iron are all recycled materials that are generated in a larger amount than the hot scarf that is generated in the hot slab treatment process on the steel slab surface.
- the mill scale is a recycled material generated in the steelmaking rolling process.
- the Fe O force is 3 ⁇ 40% or more when the constituent elements are calculated in terms of oxides by fluorescent X-ray analysis, and the surface dry density is 4. 8gZ
- the compressive force has a particle size distribution close to that of crushed sand JIS.
- the particle shape is often flat, when used as an aggregate, the fluidity of concrete and mortar decreases, and when the amount of unit water or water reducing agent is increased excessively, aggregate and paste Is easy to separate. Therefore, the mill scale cannot be used alone as a heavy aggregate.
- Coarse dust of steelmaking converter dust is a force containing 70% or more of spherical particles Nominal size of 0.1% mm particles passing through a sieve with a nominal size of 0.15mm in terms of mass percentage of 25% or more, the nominal size of 0.3mm When the particle passing through the sieve is 65% or more, the particle size distribution of the aggregate is too biased toward the fine particle side. It is difficult to obtain a sufficient mortar flow.
- Granular pig iron separated from granulated blast furnace slag also contains about 50% spherical particles, but the particles passing through a sieve with a nominal size of 0.15 mm are less than 5% by mass of the total particles, and the nominal size While particles passing through a 3 mm sieve are less than 20%, particles passing through a nominal size 1.2 mm sieve are more than 85%, and the particle size is concentrated between 0.3 mm and 1.2 mm. Has an uneven particle size distribution. Therefore, when granular pig iron is used alone as a heavy aggregate, the aggregate and cement paste are likely to separate.
- the mixing ratio of the mill scale, the converter dust coarse particles, and the granular pig iron is 0 to 70%, 0 to 50%, and 0 to 60% in mass percentage, respectively. It is preferable to be 20-70%, 20-50%, and 0-40% especially! / ⁇ .
- the mortar using the heavy aggregate cannot obtain a sufficient mortar flow. In some cases, it is not preferable.
- the mixing ratio of the granular pig iron exceeds 60%, the mortar using the heavy aggregate is not preferable because the aggregate and the cement paste may be separated.
- the mixing ratio of the mill scale is less than 20%! /
- the separation of the aggregate and the cement paste may be caused by the mixing ratio of the remaining recycled materials. May occur or sufficient mortar flow may not be obtained.
- the mixing ratio of converter dust coarse particles is less than 20%, or when the mixing ratio of granular pig iron exceeds 40%
- the aggregate and cement paste may be separated depending on the mixing ratio of the remaining recycled materials.
- Table 4 shows the mortar flow measurement results.
- Fig. 1 shows the mortar flow measurement results
- Fig. 2 shows the unit volume mass of the mortar.
- the mixing ratio of the hot scarf and the mill scale was 40:60 and the mixing ratio of the hot scarf was high, the unit volume mass of the mortar was remarkably high, indicating that it was more preferable. At this time, the ratio of spherical particles was 25% or more.
- Table 5 shows the mortar flow measurement results. The mortar flow was judged good at 130 mm or more.
- the mill scale, converter dust coarse powder, and granular pig iron were mixed at a mass percentage of 0 to 30%, 10 to 60%, and 10 to 70%, respectively, to prepare mixed sand.
- Table 6 shows the mortar flow measurement results. The mortar flow was judged good at 130 mm or more.
- the heavy aggregate used in the heavy mortar has a mixing ratio of mill scale, converter dust coarse particles, and granular pig iron in mass percentages of 0 to 70%, 0 ⁇ 50%, and.
- a force of ⁇ 60% S preferred, especially 20-70%, 20-50%, and so on. It was apparent that it was preferable to be ⁇ 40%.
- the mixing ratio of the mill scale, the converter dust coarse particles, and the granular pig iron is 0 to 70%, 0 to 50%, and 0 to 60% in terms of mass percentage
- the weight Aggregate contains at least one of FeO, Fe 2 O, and metallic iron as the main constituents, and spherical particles out of all particles are 20
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800432111A CN101541704B (zh) | 2006-11-22 | 2007-06-29 | 重质骨料 |
JP2008502174A JP4166269B2 (ja) | 2006-11-22 | 2007-06-29 | 重量骨材 |
US12/446,680 US20100326324A1 (en) | 2006-11-22 | 2007-06-29 | Heavy weight aggregates |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006316110 | 2006-11-22 | ||
JP2006-316110 | 2006-11-22 | ||
JP2007-043217 | 2007-02-23 | ||
JP2007043217A JP4044956B1 (ja) | 2006-11-22 | 2007-02-23 | 重量骨材 |
JP2007071758 | 2007-03-20 | ||
JP2007-071758 | 2007-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008062580A1 true WO2008062580A1 (en) | 2008-05-29 |
Family
ID=39429521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/063083 WO2008062580A1 (en) | 2006-11-22 | 2007-06-29 | Heavy weight aggregates |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100326324A1 (ja) |
JP (1) | JP4166269B2 (ja) |
KR (1) | KR100907203B1 (ja) |
CN (1) | CN101541704B (ja) |
WO (1) | WO2008062580A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009096359A1 (ja) * | 2008-01-29 | 2009-08-06 | Taiheiyo Cement Corporation | 重量コンクリート |
JP2009179490A (ja) * | 2008-01-29 | 2009-08-13 | Taiheiyo Cement Corp | 重量骨材 |
JP2010100480A (ja) * | 2008-10-23 | 2010-05-06 | Taiheiyo Cement Corp | セメント組成物 |
JP2019123646A (ja) * | 2018-01-17 | 2019-07-25 | 太平洋マテリアル株式会社 | モルタル組成物及びモルタル |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TR201807042A2 (tr) * | 2018-05-18 | 2018-06-21 | Ugur Beton Metal Ve Plastik Sanayi Turizm Ticaret Ltd Sirketi | Çeli̇k ve ağir beton bi̇leşenleri̇nden oluşan denge ağirliği ve buna i̇li̇şki̇n üreti̇m yöntemi̇ |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06122538A (ja) * | 1992-10-14 | 1994-05-06 | Kawasaki Steel Corp | 重量コンクリートの製造方法及び重量コンクリート |
JP2004091324A (ja) * | 2003-11-06 | 2004-03-25 | Dowa Mining Co Ltd | 重量コンクリート |
JP2004210574A (ja) * | 2002-12-27 | 2004-07-29 | Kokan Kogyo Kk | 重量コンクリート |
US20060243168A1 (en) * | 2003-09-15 | 2006-11-02 | Wheelabrator_Allevard | High-wearing-resistant composite material comprising steel-based shot and method for producing said material |
JP2007008758A (ja) * | 2005-06-30 | 2007-01-18 | Jtekt Corp | 複合材料 |
JP2007015880A (ja) * | 2005-07-06 | 2007-01-25 | Nippon Steel & Sumikin Stainless Steel Corp | 重量骨材及び重量コンクリート並びにそれらの製造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060023100A (ko) * | 2004-09-08 | 2006-03-13 | 순천대학교 산학협력단 | 제강슬래그의 처리 분정광과 입철을 이용한 중량재 원료제조 |
-
2007
- 2007-06-29 JP JP2008502174A patent/JP4166269B2/ja active Active
- 2007-06-29 CN CN2007800432111A patent/CN101541704B/zh not_active Expired - Fee Related
- 2007-06-29 WO PCT/JP2007/063083 patent/WO2008062580A1/ja active Application Filing
- 2007-06-29 US US12/446,680 patent/US20100326324A1/en not_active Abandoned
-
2008
- 2008-09-10 KR KR20087022115A patent/KR100907203B1/ko not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06122538A (ja) * | 1992-10-14 | 1994-05-06 | Kawasaki Steel Corp | 重量コンクリートの製造方法及び重量コンクリート |
JP2004210574A (ja) * | 2002-12-27 | 2004-07-29 | Kokan Kogyo Kk | 重量コンクリート |
US20060243168A1 (en) * | 2003-09-15 | 2006-11-02 | Wheelabrator_Allevard | High-wearing-resistant composite material comprising steel-based shot and method for producing said material |
JP2004091324A (ja) * | 2003-11-06 | 2004-03-25 | Dowa Mining Co Ltd | 重量コンクリート |
JP2007008758A (ja) * | 2005-06-30 | 2007-01-18 | Jtekt Corp | 複合材料 |
JP2007015880A (ja) * | 2005-07-06 | 2007-01-25 | Nippon Steel & Sumikin Stainless Steel Corp | 重量骨材及び重量コンクリート並びにそれらの製造方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009096359A1 (ja) * | 2008-01-29 | 2009-08-06 | Taiheiyo Cement Corporation | 重量コンクリート |
JP2009179490A (ja) * | 2008-01-29 | 2009-08-13 | Taiheiyo Cement Corp | 重量骨材 |
US8252111B2 (en) | 2008-01-29 | 2012-08-28 | Taiheiyo Cement Corporation | Heavy concrete |
JP2010100480A (ja) * | 2008-10-23 | 2010-05-06 | Taiheiyo Cement Corp | セメント組成物 |
JP2019123646A (ja) * | 2018-01-17 | 2019-07-25 | 太平洋マテリアル株式会社 | モルタル組成物及びモルタル |
Also Published As
Publication number | Publication date |
---|---|
KR20080098419A (ko) | 2008-11-07 |
CN101541704A (zh) | 2009-09-23 |
CN101541704B (zh) | 2013-07-10 |
JP4166269B2 (ja) | 2008-10-15 |
KR100907203B1 (ko) | 2009-07-10 |
US20100326324A1 (en) | 2010-12-30 |
JPWO2008062580A1 (ja) | 2010-03-04 |
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