CN103145388A - Iron tailing doped high-performance concrete and manufacturing method thereof - Google Patents
Iron tailing doped high-performance concrete and manufacturing method thereof Download PDFInfo
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- CN103145388A CN103145388A CN2013101129091A CN201310112909A CN103145388A CN 103145388 A CN103145388 A CN 103145388A CN 2013101129091 A CN2013101129091 A CN 2013101129091A CN 201310112909 A CN201310112909 A CN 201310112909A CN 103145388 A CN103145388 A CN 103145388A
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- 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
The invention discloses iron tailing doped high-performance concrete and a manufacturing method thereof. Each cube of the iron tailing doped high-performance concrete is prepared from the following raw materials by weight: 100-450kg of silicate cement, 30-100kg of slag powder, 50-150kg of fly ash, 3-6kg of unsaturated polyester resin, 5-12kg of a water reducing agent, 500-800kg of iron tailings, 850-1050kg of stones and 150-180kg of water. The manufacturing method comprises the following steps of: (1) weighing the iron tailings and the stones according to raw material proportions, then spraying running water to humidify the iron tailings and the stones, and adding the iron tailings and the stones into a double-horizontal-shaft forced concrete mixer when internal water of the iron tailings and stones is saturated; and (2) adding the other raw materials into the double-horizontal-shaft forced concrete mixer according to raw material mass ratios, and stirring for 30-40 seconds to obtain the concrete. By adopting the iron tailing doped high-performance concrete, the integrity, stability and safety of a concrete structure are improved, the durability of the concrete is improved, and the service life of a building is prolonged.
Description
Technical field
The invention belongs to field of inorganic nonmetallic material, can be applied to job mix concrete, concrete product and ready mixed concrete industry.
Background technology
Present domestic one side does not play one's part to the full because the tailing dam that selects iron to form captures a large amount of arable lands, and because large-scale engineering construction makes natural sand resource famine, the natural sand of preparation high performance concrete extremely lacks on the other hand.
Summary of the invention
The present invention provides a kind of iron milltailings high performance concrete and manufacture method thereof of mixing for the regeneration of separating final election iron waste material and the problem of Concrete starting material natural sand scarcity of resources.
For achieving the above object, the technical solution used in the present invention is:
A kind of iron milltailings high performance concrete of mixing is mixed the iron milltailings high performance concrete for every cube and is made by mass range by following starting material,
Silicate cement: 100～450kg,
Slag powders: 30～100kg,
Flyash: 50～150kg,
Unsaturated polyester resin: 3～6kg,
Water reducer: 5～12kg,
Iron milltailings: 500～800kg,
Stone: 850～1050kg,
Water: 150～180kg.
The silicate cement kind that the present invention uses mainly contains ordinary Portland cement, Portland blastfurnaceslag cement and composite Portland cement, and strength grade comprises 32.5,42.5 and 52.5 grades; Slag powders requires specific surface area greater than 400m
2/ kg is more than active grade reaches the S75 level; Flyash requires specific surface area greater than 150m
2/ kg, active grade reaches the above I of S75 level, the II level is done ash discharge; Water reducer requires water-reducing rate greater than 12%; Between the fineness modulus 2.3～2.7 of iron milltailings; Between the fineness modulus 2.5～3.1 of natural sand; Stone adopts the continuous grading stone of 5～10mm, 5～16mm, 5～20mm, 5～25mm, 5～31.5mm and 5～40mm.
The above-mentioned manufacture method of mixing the iron milltailings high performance concrete, 1) take iron milltailings and stone by above-mentioned proportioning raw materials, then adopt tap water to they humidifications of spraying water in advance, make iron milltailings and stone reach internal moisture saturated after, add Double-horizontal-shaft to force in concrete mixer; 2) by above-mentioned proportioning raw materials, other raw material is added in the Double-horizontal-shaft forced stirrer by the quality proportioning, stir 35-40S and mix, can form and mix the iron milltailings high performance concrete.
beneficial effect of the present invention: the present invention takes full advantage of the ore dressing iron milltailings, realized the comprehensive utilization of resource, that has prepared high-quality mixes the iron milltailings high performance concrete, because the higher thermal conductivity of iron milltailings has discharged concrete hydration heat, the crack of effectively having prevented hydration heat of concrete to cause, solved the crack problem that concrete occurs in hydration and hardening and use procedure, pore and the microfracture of inside concrete have been stopped up simultaneously due to the infiltration crystallization of unsaturated polyester resin, improved the globality of concrete structure, stability, security, improved concrete weather resistance, improved the work-ing life of buildings, be applicable to the Site construction, ready mixed concrete production and cement concrete manufacturing.
Embodiment
Embodiment 1 mixes iron milltailings high performance concrete and manufacture method thereof
(1) mix the iron milltailings high performance concrete, the concrete of five kinds of different ratios of raw materials, every cube to mix the raw materials used quality of iron milltailings high performance concrete as shown in table 1,
Every cube, table 1 is mixed the raw materials used quality of iron milltailings high performance concrete (unit: kg/m
3)
The silicate cement kind that the present embodiment uses is 42.5 grades of ordinary Portland cements; The specific surface area of slag powders is greater than 400m
2/ kg is more than active grade reaches the S75 level; The specific surface area of flyash is greater than 150m
2/ kg, active grade reaches the above I of S75 level, the II level is done ash discharge; Water reducer is that water-reducing rate is greater than 12%; Between the fineness modulus 2.3～2.7 of iron milltailings; Between the fineness modulus 2.5～3.1 of natural sand; Stone adopts the continuous grading stone of 5～10mm, 5～16mm, 5～20mm, 5～25mm, 5～31.5mm and 5～40mm.
(2) five kinds of above-mentioned different ratios of raw materials manufacture method of mixing the iron milltailings high performance concrete is as follows:
1) take respectively iron milltailings and stone by the proportioning raw materials of numbering 1～5 in above-mentioned table 1, then adopt tap water to they humidifications of spraying water in advance, make iron milltailings and stone reach internal moisture saturated after, add Double-horizontal-shaft to force in concrete mixer;
2) by above-mentioned proportioning raw materials, silicate cement, slag powders, flyash, unsaturated polyester resin, water reducer and water are joined in the Double-horizontal-shaft forced stirrer by weight ratio, stir 35-40S and mix, can form and mix the iron milltailings high performance concrete.
The concrete performance situation of (three) five kinds of proportionings
5 kinds of performance situations of mixing the iron milltailings high performance concrete are as shown in table 2, as can be seen from Table 2: according to national standard, the initial slump of concrete mix is greater than 160mm, concrete mix initial extension degree is greater than just pumping smoothly of 400mm, in this patent example, the initial slump of concrete mix is all greater than 220mm, concrete mix initial extension degree is all greater than 450mm, the slump was greater than 200mm in 1 hour, divergence was greater than 400mm in 1 hour, 3 days, 7 days and 28 days intensity meet design requirement, through above data as can be known, it is excellent that the present invention mixes the high performance concrete workability of iron milltailings preparation.
The concrete performance situation of table 2 embodiment 1 preparation
Embodiment 2 crack situation contrasts
According to the proportioning raw materials of table 3, the manufacture method of embodiment 1, the concrete of two kinds of proportioning raw materials of preparation.Experimental result shows, in the situation that other conditions are identical, utilizing iron milltailings to replace every square metre of crack quantity that surpasses 30mm length of concrete that natural sand is prepared is 6, and utilizing every square metre of crack quantity that surpasses 30mm length of concrete of natural sand preparation is 21.
Concrete proportioning raw materials (unit: kg/m in table 3 the present embodiment
3)
Claims (2)
1. mix the iron milltailings high performance concrete for one kind, it is characterized in that: mix the iron milltailings high performance concrete for every cube and made by mass range by following starting material,
Silicate cement: 100～450kg,
Slag powders: 30～100kg,
Flyash: 50～150kg,
Unsaturated polyester resin: 3～6kg,
Water reducer: 5～12kg,
Iron milltailings: 500～800kg,
Stone: 850～1050kg,
Water: 150～180kg.
2. manufacture method of mixing the iron milltailings high performance concrete claimed in claim 1 is characterized in that:
1) proportioning raw materials by claim 1 takes iron milltailings and stone, then adopts tap water to they humidifications of spraying water in advance, make iron milltailings and stone reach internal moisture saturated after, add Double-horizontal-shaft to force in concrete mixer;
2) other raw material is added in double-horizontal forced concrete agitator by the quality proportioning with claim 1 is described, stir 35-40S and mix, can form and mix the iron milltailings high performance concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101129091A CN103145388A (en) | 2013-04-03 | 2013-04-03 | Iron tailing doped high-performance concrete and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101129091A CN103145388A (en) | 2013-04-03 | 2013-04-03 | Iron tailing doped high-performance concrete and manufacturing method thereof |
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| CN103145388A true CN103145388A (en) | 2013-06-12 |
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| CN2013101129091A Pending CN103145388A (en) | 2013-04-03 | 2013-04-03 | Iron tailing doped high-performance concrete and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803917A (en) * | 2013-11-28 | 2014-05-21 | 北京城建混凝土有限公司 | Waste stone chips doped high performance concrete and preparation method thereof |
| CN104016621A (en) * | 2014-04-30 | 2014-09-03 | 枞阳县天筑新型建筑材料有限公司 | Anti-cracking concrete and preparation method thereof |
| CN104030616A (en) * | 2014-04-30 | 2014-09-10 | 枞阳县天筑新型建筑材料有限公司 | Anticorrosive high strength concrete and preparation method thereof |
| CN104478328A (en) * | 2014-12-08 | 2015-04-01 | 武汉理工大学 | High-performance concrete prepared from antimony ore smelting slag and preparation method of high-performance concrete |
| CN105601206A (en) * | 2016-02-01 | 2016-05-25 | 中国十七冶集团有限公司 | Iron ore waste rock self-compaction concrete |
| CN107902999A (en) * | 2017-12-11 | 2018-04-13 | 广东工业大学 | A kind of super high-early concrete and preparation method thereof |
| CN108117330A (en) * | 2017-11-21 | 2018-06-05 | 合肥厚德环保材料科技有限公司 | Concrete prepared using discarded dry film and preparation method thereof |
| CN109369117A (en) * | 2018-12-26 | 2019-02-22 | 陕西天石实业有限责任公司 | Mass concrete |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1872766A (en) * | 2006-06-16 | 2006-12-06 | 韩付勇 | Cement concrete of resin |
| CN102850011A (en) * | 2011-07-01 | 2013-01-02 | 北京建筑材料科学研究总院有限公司 | Technological process for preparing active powder concrete by using iron tailing |
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2013
- 2013-04-03 CN CN2013101129091A patent/CN103145388A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872766A (en) * | 2006-06-16 | 2006-12-06 | 韩付勇 | Cement concrete of resin |
| CN102850011A (en) * | 2011-07-01 | 2013-01-02 | 北京建筑材料科学研究总院有限公司 | Technological process for preparing active powder concrete by using iron tailing |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803917A (en) * | 2013-11-28 | 2014-05-21 | 北京城建混凝土有限公司 | Waste stone chips doped high performance concrete and preparation method thereof |
| CN104016621A (en) * | 2014-04-30 | 2014-09-03 | 枞阳县天筑新型建筑材料有限公司 | Anti-cracking concrete and preparation method thereof |
| CN104030616A (en) * | 2014-04-30 | 2014-09-10 | 枞阳县天筑新型建筑材料有限公司 | Anticorrosive high strength concrete and preparation method thereof |
| CN104478328A (en) * | 2014-12-08 | 2015-04-01 | 武汉理工大学 | High-performance concrete prepared from antimony ore smelting slag and preparation method of high-performance concrete |
| CN105601206A (en) * | 2016-02-01 | 2016-05-25 | 中国十七冶集团有限公司 | Iron ore waste rock self-compaction concrete |
| CN108117330A (en) * | 2017-11-21 | 2018-06-05 | 合肥厚德环保材料科技有限公司 | Concrete prepared using discarded dry film and preparation method thereof |
| CN108117330B (en) * | 2017-11-21 | 2021-06-22 | 常州厚德再生资源科技有限公司 | Concrete prepared from waste dry films and preparation method thereof |
| CN107902999A (en) * | 2017-12-11 | 2018-04-13 | 广东工业大学 | A kind of super high-early concrete and preparation method thereof |
| CN109369117A (en) * | 2018-12-26 | 2019-02-22 | 陕西天石实业有限责任公司 | Mass concrete |
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Application publication date: 20130612 |