CN103864372B - High overall container of disposal of radioactive substances concrete reinforced by assorted fiber and preparation method thereof - Google Patents
High overall container of disposal of radioactive substances concrete reinforced by assorted fiber and preparation method thereof Download PDFInfo
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- CN103864372B CN103864372B CN201410111158.6A CN201410111158A CN103864372B CN 103864372 B CN103864372 B CN 103864372B CN 201410111158 A CN201410111158 A CN 201410111158A CN 103864372 B CN103864372 B CN 103864372B
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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 high overall container of a kind of disposal of radioactive substances concrete reinforced by assorted fiber and preparation method thereof, wherein this container comprises and forms main body and lid by the concrete placement being mixed with water reducer and assorted fibre, concrete is made up of gelatinous material, aggregate and water, and wherein concrete density presses 2400kg/m
3calculate, in every cubic meter of concrete, gelling material is 450 ~ 600kg; Gelling material is made up of by mass percentage following raw material: cement 46 ~ 76%, silicon ash 2.7 ~ 7.7%, slag 22 ~ 39%, flyash 2.7 ~ 7.7%; The mass ratio of water and gelling material is 0.25 ~ 0.35:1; Aggregate is made up of sand and stone, and sand coarse aggregate ratio is 35 ~ 43%; The volume of water reducer is 1.0 ~ 2.0% of gelling material total mass; Assorted fibre volume is 0.5 ~ 1.5% of concrete cumulative volume.Present invention achieves the soil surface treatment of nuke rubbish, reduce expense.
Description
Technical field
The present invention relates to nuclear waste disposal technical field, specifically a kind ofly to realize the radioactive substances such as nuke rubbish high overall container of disposal of radioactive substances concrete reinforced by assorted fiber carrying out ground or semi-underground process and preparation method thereof.
Background technology
Active development nuclear energy and propelling Nuclear power project are important policies of China's energy construction.During " 12 ", China's Nuclear power project enters a high-speed development period, will have 3 ~ 5 newly-started construction of Nuclear power plants every year.Concerning China's Construction of Nuclear Electricity, the disposal technology of nuke rubbish is most crucial.The radioactive substance meeting serious environment pollutions such as nuke rubbish, not only causing irremediable infringement to environment as dealt with improperly, also can cause damage to the mankind and various biology.At present, dark geological disposal mode is adopted mostly to the process of the radioactive substances such as nuke rubbish.By the method for disposal of radwaste permanent sequestration is avoided its damage caused environment.Dark geological disposal mode treatment depth the nearlyest hundred meters, this disposal options cost is high.If adopt ground or semi-underground mode process radioactive substance greatly to reduce costs.But this must ensure the container of storage of radioactive material have corrosion-resistant, intensity is high and can isolate the higher requirement such as ray so that can ensure radioactive substance decay to harmless before complete.And the container of existing storage of radioactive material all can not reach above-mentioned requirements.
Traditional nuke rubbish splendid attire and disposal technology are often based on the principle of " multibarrier ", steel construction or skeleton construction and composite structure thereof is utilized to shield as " cushioning material " radioactivity to nuke rubbish, then buried mode is utilized to dispose, therefore there is the critical defect that disposal unit is excessive, cannot carry out security monitoring in this technique, and traditional nuke rubbish concrete or fiber reinforced concrete container also exist the defects such as toughness deficiency, service life be short.Nuke rubbish after solidification can directly be placed in a reservoir by high integrity container technology, safe storage 300 years under the envrionment conditionss such as dry wet, cold and hot, brine corrosion, impact; This technology can simplify multibarrier, without under landfill, saves a large amount of land resources.
The problems in use existed in view of the above-mentioned existing container depositing radioactive substance and defect, the present inventor and studied and innovate, high overall container of disposal of radioactive substances concrete reinforced by assorted fiber of a kind of novelty of final invention and preparation method thereof, make its treatment technology achieve update, and more there is practicality.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides the high overall container of a kind of disposal of radioactive substances concrete reinforced by assorted fiber, have corrosion-resistant, intensity is high, the feature of long service life, achieve the earth's surface of the radioactive substances such as nuke rubbish or semi-underground process, greatly reduce processing costs.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
The high overall container of disposal of radioactive substances concrete reinforced by assorted fiber, comprises by the main body of the concrete placement being mixed with water reducer and assorted fibre and lid, it is characterized in that, described concrete composed as follows:
Concrete density presses 2400kg/m
3calculate, in every cubic meter of concrete, gelling material is 450 ~ 550kg;
Gelling material is made up of by mass percentage following raw material: cement 45 ~ 70%, silicon ash 2.0 ~ 7.0%, slag 25 ~ 40%, flyash 3.0 ~ 8.0%;
The mass ratio (water-cement ratio) of water and gelling material is 0.25 ~ 0.35:1;
Aggregate is made up of sand and stone, and sand coarse aggregate ratio (sand accounts for the mass percent of aggregate) is 35 ~ 43%;
The volume of water reducer is 1.0 ~ 2.0% of gelling material total mass;
The volume of assorted fibre is 0.5 ~ 1.5% of concrete cumulative volume.
As preferably, described gelling material is made up of by mass percentage following raw material: cement 51 ~ 69%, silicon ash 3 ~ 6%, slag 30 ~ 35%, flyash 5 ~ 7%.
As preferably, the grain composition of described stone is 5mm ~ 10mm and 10mm ~ 20mm graduation two, and wherein maximum particle diameter is no more than 20mm.
As preferably, the fineness modulus of described sand is 2.60.
As preferably, described cement adopts P.I type cement, and strength mark is not less than 42.5.
As preferably, described water reducer is liquid polycarboxylic acid water reducing agent, and water-reducing rate is 30%,
As preferably, described sand coarse aggregate ratio is 35%.
As preferably, described assorted fibre is mixed by steel fiber, carbon fiber and amorphous alloy fiber, and wherein steel fiber diameter is 0.18mm ~ 0.23mm, and length is 12mm ~ 14mm, and volume is 0.3% ~ 1.3% of concrete cumulative volume; Carbon fiber diameter is 7 μm, and length is 5 ~ 8mm, and volume is 0.05% ~ 0.1% of concrete cumulative volume; Amorphous alloy fiber is 5 ~ 20mm, and width is 1mm, and thickness is 24mm, and volume is 0.05% ~ 0.1% of concrete cumulative volume.
Another object of the present invention for providing the preparation method of the high overall container of a kind of above-mentioned disposal of radioactive substances concrete reinforced by assorted fiber, with obtained corrosion-resistant, intensity is high, the storer depositing radioactive substance of long service life.The technical scheme realizing this object is as follows:
The preparation method of the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber, comprises the steps:
A. the raw material of the high overall container of above-mentioned arbitrary described disposal of radioactive substances concrete reinforced by assorted fiber is carried in the forming room being put in 20 degree the day before yesterday;
B. dosing procedure is thrown in hopper by the order of stone one assorted fibre one sand one gelling material, first dry mixing 1 ~ 2min in stirrer, then the wet-mixing 3min that adds water, and total churning time controls in 6min, then builds shaping;
C. under the condition of temperature 20 DEG C ± 2 DEG C, more than relative humidity 95%RH, maintenance is carried out.
Compared with prior art, beneficial effect of the present invention is:
The high overall container of disposal of radioactive substances concrete reinforced by assorted fiber of the present invention all ensure that its safety performance when radioactive substances such as earth's surface or semi-underground process nuke rubbish in physical properties, physical strength, radiation resistance, anti-freezing property, chemical stability etc.The high overall container of disposal of radioactive substances concrete reinforced by assorted fiber of the present invention ensure that radioactive substance decay to harmless before integrity, achieve the earth's surface of the radioactive substances such as nuke rubbish or semi-underground process, reach saving processing costs.The use of assorted fibre can make full use of the advantage of different types of fiber, if steel fiber is to concrete high toughening effect, the resistance to cleavage of carbon fiber and the corrosion resistance of amorphous alloy fiber, thus make concrete while the excellent properties of maintenance own, also attract the excellent characteristic of all multifilaments.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, but not as a limitation of the invention.
Embodiment one:
The high overall container of disposal of radioactive substances concrete reinforced by assorted fiber, the concrete placement be made up of following raw material forms, wherein cement 360kg, silicon ash 45kg, slag 165kg, flyash 30kg, water 168kg, sand 574kg, stone 1067kg, steel fiber 39kg, carbon fiber 0.85kg, amorphous alloy fiber 7.1kg, water reducer 12kg.Wherein assorted fibre can according to determine mix volume and known density conversion obtains corresponding quality.
The raw material of the high overall container of above-mentioned arbitrary described disposal of radioactive substances concrete reinforced by assorted fiber is carried in the forming room being put in 20 DEG C the day before yesterday; Dosing procedure is thrown in hopper by the order of stone one assorted fibre one sand one gelling material, first dry mixing 1 ~ 2min in stirrer, then the wet-mixing 3min that adds water, and total churning time controls in 6min, then builds shaping; Maintenance is carried out under the condition of temperature 20 DEG C ± 2 DEG C, more than relative humidity 95%RH.
The grain composition of stone is 5mm ~ 10mm and 10mm ~ 20mm graduation two, and wherein maximum particle diameter is no more than 20mm, and other index meets the requirement of JGJ52-2006.
Sand adopts common yellow ground, and fineness modulus is 2.60, and other index meets the requirement of JGJ52-2006.
Cement adopts P.I type cement, and strength mark is not less than 42.5.
Slag is S95 level, meets the requirement of GB/T18046-2008.
Silicon ash meets the requirement of GB/T18736-2002.
Flyash is first level flour coal ash, meets the requirement of GB/T1596-2005.
Hydromining ordinary tap water, other index need meet the requirement of JGJ63-2006.
Water reducer is liquid polycarboxylic acid water reducing agent, and water-reducing rate is 30%.
Assorted fibre belongs to the compound use of carbon steel fiber, amorphous alloy fiber and carbon fiber respectively from material.
Embodiment two:
The different changes being raw material of the present embodiment and embodiment one.Wherein cement 330kg, silicon ash 20kg, slag 200kg, flyash 50kg, water 150kg, sand 574kg, stone 1067kg, steel fiber 78kg, carbon fiber 0.85kg, amorphous alloy fiber 7.1kg, water reducer 13.8kg.
Embodiment three:
The different changes being raw material of the present embodiment and embodiment one.Wherein 310kg, silicon ash 30kg, slag 190kg, flyash 40kg, water 145kg, sand 574kg, stone 1067kg, steel fiber 101.4kg, carbon fiber 1.7kg, amorphous alloy fiber 7.1kg, water reducer 15kg.
The test result of the properties of above-described embodiment sees the following form 1.The index request of table 1 storer of the present invention and test result
As can be seen from Table 1, properties of the present invention all meets the standard realized nuke rubbish soil surface treatment.Adopt storer of the present invention can realize soil surface treatment to radioactive substances such as nuke rubbish or semi-underground process, greatly reduce processing costs.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Claims (9)
1. the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber, comprises by the main body of the concrete placement being mixed with water reducer and assorted fibre and lid, it is characterized in that, described concrete composed as follows:
Concrete density presses 2400kg/m
3calculate, in every cubic meter of concrete, gelling material is 450 ~ 550kg;
Gelling material is made up of by mass percentage following raw material: cement 46 ~ 76%, silicon ash 2.7 ~ 7.7%, slag 22 ~ 39%, flyash 2.7 ~ 7.7%;
The mass ratio of water and gelling material is 0.25 ~ 0.35:1;
Aggregate is made up of sand and stone, and sand coarse aggregate ratio is 35 ~ 43%;
The volume of water reducer is 1.0 ~ 2.0% of gelling material total mass;
Assorted fibre cumulative volume volume is 0.5 ~ 1.5% of concrete cumulative volume, and described assorted fibre is mixed by steel fiber, carbon fiber and amorphous alloy fiber.
2. the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber according to claim 1, it is characterized in that, described gelling material is made up of by mass percentage following raw material: cement 51 ~ 69%, silicon ash 3 ~ 7%, slag 25 ~ 35%, flyash 3 ~ 7%.
3. the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber according to claim 1, it is characterized in that, the grain composition of described stone is 5mm ~ 10mm and 10mm ~ 20mm graduation two, and wherein maximum particle diameter is no more than 20mm.
4. the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber according to claim 1, it is characterized in that, the fineness modulus of described sand is 2.60.
5. the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber according to claim 1, is characterized in that, described cement adopts P.I type cement, and strength mark is not less than 42.5.
6. the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber according to claim 1, it is characterized in that, described water reducer is liquid polycarboxylic acid water reducing agent, and water-reducing rate is 30%.
7. the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber according to claim 1, it is characterized in that, described sand coarse aggregate ratio is 35%.
8. the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber according to claim 1, it is characterized in that, steel fiber diameter is 0.18mm ~ 0.23mm, and length is 12mm ~ 14mm, and volume is 0.3% ~ 1.3% of concrete cumulative volume; Carbon fiber diameter is 7 μm, and length is 5 ~ 8mm, and volume is 0.05% ~ 0.1% of concrete cumulative volume; Amorphous alloy fiber is 5 ~ 20mm, and width is 1mm, and thickness is 24mm, and volume is 0.05% ~ 0.1% of concrete cumulative volume.
9. the preparation method of the high overall container of disposal of radioactive substances concrete reinforced by assorted fiber, is characterized in that, comprise the steps:
A. the raw material of high for the disposal of radioactive substances concrete reinforced by assorted fiber described in arbitrary for claim 1-8 claim overall container is carried in the forming room being put in 20 degree the day before yesterday;
B. dosing procedure is thrown in hopper by the order of stone, assorted fibre, sand, gelling material, first dry mixing 1 ~ 2min in stirrer, then the wet-mixing 3min that adds water, and total churning time controls in 6min, then builds shaping;
C. under the condition of temperature 20 DEG C ± 2 DEG C, more than relative humidity 95%RH, maintenance is carried out.
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| CN201410111158.6A CN103864372B (en) | 2014-03-24 | 2014-03-24 | High overall container of disposal of radioactive substances concrete reinforced by assorted fiber and preparation method thereof |
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| CN103864372B true CN103864372B (en) | 2016-03-23 |
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| CN104591632B (en) * | 2015-01-15 | 2017-08-25 | 黑龙江工程学院 | The preparation method of discarded glass comminuted steel shot Strengthening and Toughening concrete composite material |
| CN105601193B (en) * | 2016-03-04 | 2017-09-29 | 河海大学 | A kind of amorphous alloy fiber enhancing concrete and preparation method thereof |
| CN106278012A (en) * | 2016-07-25 | 2017-01-04 | 安庆惠嘉新型建材有限公司 | A kind of steel carbon mixed-fiber reinforced concrete material and preparation method thereof |
| CN106278037B (en) * | 2016-08-12 | 2018-03-09 | 中国建筑材料科学研究总院 | Super dense concrete |
| CN106396445B (en) * | 2016-08-29 | 2019-08-06 | 上海市建筑科学研究院 | Medium-level waste disposal container concrete composite reinforcing material and preparation method thereof |
| CN106892616B (en) * | 2017-01-19 | 2019-09-13 | 武汉海王新能源工程技术有限公司 | A kind of radioactive solid waste disposition lidstock material of concrete HIC |
| CN108101431A (en) * | 2017-12-12 | 2018-06-01 | 北京科技大学 | A kind of neutron shield special concrete of amorphous fiber enhancing and preparation method thereof |
| CN113387647A (en) * | 2021-06-17 | 2021-09-14 | 广东中路防护工程有限公司 | Gamma-ray-proof ultrahigh-performance concrete and preparation method thereof |
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| FR2763584B1 (en) * | 1997-05-20 | 1999-07-09 | Electricite De France | CONTAINMENT CONCRETE |
| KR100219726B1 (en) * | 1997-08-21 | 1999-09-01 | 이종훈 | A composition for sfpic(steel fiber polymer impregnated concrete) and a high integrity container made of the sfpic composition for low to intermediate level radioactive waste and a method for the high integrity container |
| CN103381621A (en) * | 2012-05-04 | 2013-11-06 | 中铁九局集团有限公司桥梁分公司 | Production process for active powder concrete product |
| CN203179565U (en) * | 2013-01-25 | 2013-09-04 | 中国核电工程有限公司 | Concrete high overall container for containing low-middle-level radioactive solid wastes |
| CN103484799B (en) * | 2013-09-23 | 2015-10-28 | 安泰科技股份有限公司 | A kind of for concrete amorphous alloy fiber and preparation method thereof |
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