CN106431114A - Waste tire hub fiber concrete and production method thereof - Google Patents
Waste tire hub fiber concrete and production method thereof Download PDFInfo
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- CN106431114A CN106431114A CN201610859500.XA CN201610859500A CN106431114A CN 106431114 A CN106431114 A CN 106431114A CN 201610859500 A CN201610859500 A CN 201610859500A CN 106431114 A CN106431114 A CN 106431114A
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- concrete
- wheel hub
- steel fibre
- sand
- discarded
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Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- C04B14/38—Fibrous materials; Whiskers
- C04B14/48—Metal
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides waste tire hub fiber concrete. The concrete is prepared from the following raw materials: cement, water, sand, macadam and waste hub steel fibers. A preparation method of the concrete comprises the steps of pouring the sand into a stirring machine, scattering 1/3 required mass of waste hub steel fibers into the sand, further adding cement and water, scattering 1/3 required mass of waste hub steel fibers into the sand, adding the macadam, scattering 1/3 required mass of waste hub steel fibers into the sand, uniformly stirring to obtain a mixture, adding the mixture into a test mold, putting the test mold on a vibration table, carrying out dense vibration, standing for 12 hours, removing the mold, and maintaining a removed test piece at a temperature of 20+/-2 DEG C and a humidity over 95% in a maintaining tank for 7 days and 28 days, so as to produce the waste tire hub fiber concrete. By virtue of the enhancement of the waste hub steel fibers, the compressive strength, breaking strength and anti-cracking ability of the concrete are substantially improved.
Description
Technical field
The present invention provides a kind of utilization of discarded wheel hub steel fibre steel, is specifically prepared a kind of waste tire wheel hub fiber
Concrete, belongs to building material field.
Background technology
Steel fiber reinforced concrete be in normal concrete mix random distribution short steel fibre formed a kind of new
Heterogeneous composite material.The steel fibre of these random distributions can hinder the extension of inside concrete microcrack and macroscopic view to split effectively
The formation of seam, significantly improves tension, bending resistance, shock resistance and the anti-fatigue performance of concrete, has preferable ductility.
Steel fibre used by traditional steel fiber reinforced concrete is specially to produce in the factory, by cut off finer wire method,
Fibre length that cold-rolling strip steel shearing, steel ingot milling or molten steel rapid condensation method etc. are made and its diameter ratio are between 40～80
Fiber (as Fig. 1).Because its manufacturing process is complicated and also the difference of preparation method, the cost of these steel fibres is all higher, mesh
The front market price is typically at 8000～10000 yuan/ton.During the processing and manufacturing of steel fibre, hyperpyrexia and drastically can be run into
Cooling, is equivalent to as-quenched, the case hardness of therefore these steel fibres is all higher, seldom occurs when concrete is stirred
Buckling phenomenon, if it is stirred by force, because steel fibre is crossed as hard as crisp, is also easy to during stirring fracture, notable fall
The low enhancing effect of steel fibre.When steel fiber reinforced concrete is used as road surface, in the synthesis of vehicular load and external elements
Under effect, the concrete on surface comes off so that steel fibre is exposed out due to long-term abrasion and weathering, these exposed steel
Fiber easily penetrates among the tire of vehicle due to having higher hardness, brings certain safety to the vehicle of passing traveling
Hidden danger.
Waste tire wheel hub steel fibre is a kind of byproduct that waste tire produces in recycling process, and its diameter is about
0.4mm, length 3～5cm, draw ratio between 75～125 (as Fig. 2).
With expanding economy, the increasingly improvement of people's lives condition, the infrastructure such as traffic perfect, China's vehicle
Total amount is all increased with speed faster every year, ends for the end of the year 2015, and national vehicle guaranteeding organic quantity reaches 2.79 hundred million.The every annual report of China
Useless vehicle reaches 5,000,000, and in the 5 years postpartum and the term of validity of conventional tyre is made a living, therefore tire must after using 4 to five years
Must change, the annual junked tire producing of China sharply increases in the speed with 8%～10% in recent years, to the year two thousand twenty, China gives up
Old tire yield will reach 20,000,000 tons.The techniques such as these discarded bead seat are by pulverizing, screening are recycled, wherein
Rubber can be made rubber powder and is described as industrial " black gold " and can directly be recycled, and can be used for all kinds of rubber systems
In the fields such as product, sports ground, golf factory, amusement park, architectural waterproof material, highway construction, and the steel fibre produced
Often it is sold to steel reclaims factory as a kind of byproduct, be currently located at Hubei Tianjin Thailand environmental protection company life of Hubei Xiangyang Laohekou City
The price that the waste tire wheel hub steel fibre that output is come reclaims, typically at 700 yuan/ton, is plant produced out steel fibre price
1/10.These steel fibres reclaiming, remake into new steel-product by high temperature after dissolving, one side steel fibre is melting
During again can consume substantial amounts of energy resources, the quality of the steel-product on the other hand remaking can decrease.Cause
How this is carried out rational regeneration is always worth problem of concern, and makes waste tire wheel hub steel fibre
Concrete, not only can bring huge economic benefit can bring huge social benefit again.
Content of the invention
The more traditional steel fiber reinforced concrete not only low price of the waste tire wheel hub steel fiber reinforced concrete of the present invention, and
Can solve the problem that the problem of the recycling of discarded object in waste tire processing procedure, meet the strategy of sustainable development of country,
And its intensity improves a lot compared with the intensity of normal concrete.Because waste tire wheel hub steel fibre toughness is stronger, therefore
It is used as during road concrete and is difficult to pierce among vehicle tyre, potential safety hazard will not be caused to passing vehicle.
It is according to certain ratio by discarded wheel hub steel wire that discarded wheel hub steel wire makes fiber cement concrete new technology
It is incorporated among cement concrete, at the standard conditions (20 ± 2 DEG C of temperature, humidity more than 95%) health 7 days, 28 days, formed
There is the steel fiber reinforced concrete of higher-strength.
A kind of waste tire wheel hub fiber concrete, this concrete includes the following raw material：Cement 400-500 part, water 180-
220 parts, sand 500-600 part, particle diameter is rubble 1000-1200 part of 5～31.5mm；The incorporation volume fraction of discarded wheel hub steel fibre
For 0%～2.0%.
It is more preferably that this concrete includes the following raw material：453 parts of cement, 195 parts of water, 560 parts of sand, particle diameter is 15mm
1192 parts of rubble, the incorporation volume fraction of discarded wheel hub steel fibre is 0% or 0.5% or 1.0% or 1.5% or 2.0%.
The production method of described waste tire wheel hub fiber concrete, comprises the steps：
(1) sand is poured among mixer, paving is spread in uniform for the discarded wheel hub steel fibre of quality needed for 1/3 shake
Among sand, then it is stirred, until mix is uniform；
(2) further cement and water are poured among mixer respectively, then are stirred, again will during mix
The uniform shake of the discarded wheel hub steel fibre of quality needed for 1/3 is spread and is layered on wherein, continues stirring until mix is equal after the completion of spreading paving
Even；
(3) again stone is poured among mixer, is stirred, during mix, last 1/3 mass is useless
Abandon the uniform shake of wheel hub steel fibre and spread and be layered on wherein, continue stirring after the completion of spreading paving until mix uniformly, steel fibre is uniform
It is distributed among concrete that not forming sticks together is considered as stirring, obtain the discarded wheel hub steel fiber reinforced concrete being stirred；
(4) the discarded wheel hub steel fibre steel fiber reinforced concrete being stirred is loaded among die trial, put and vibrate on a vibration table
Closely knit, carry out the demoulding after placing 12h, and the test specimen after abjection is placed on 20 ± 2 DEG C of temperature, in the curing box of humidity more than 95%
Lower maintenance 7 days, 28 days, you can complete the production of waste tire wheel hub fiber concrete.
Fiber cement concrete is made using discarded wheel hub steel wire there is advantages below：
1. not only with low cost but also enable to discarded bead seat steel wire and obtain rational regeneration, meet state
Family sustainable development strategic requirement, the steel fibre price that common factory produces at 8000～10000 yuan/ton about, and
After waste tire wheel hub recycles, the steel wire price that obtains at 700 yuan/ton about, is plant produced out steel fibre
The 1/10 of price.
2. because the humidification of discarded wheel hub steel fibre is so that the compression strength of concrete, rupture strength and cracking resistance
Performance is all greatly enhanced.
3., because discarded wheel hub steel fibre has preferable toughness, after concrete abrasion, exposed steel fibre will not penetrate into
Bring potential safety hazard to passing vehicle among the tire of automobile.
Brief description
Fig. 1 is industrial production steel fibre.
Fig. 2 is discarded wheel hub steel fibre.
Fig. 3 is test specimen damage -form figure in embodiment 1 compressive strength test；A is to add 0% waste tire wheel hub steel fibre
Test specimen damage -form；B is to add 0.5% waste tire wheel hub steel fibre test specimen damage -form；C is to add 1.0% waste tire
Wheel hub steel fibre test specimen damage -form；D is to add 1.5% waste tire wheel hub steel fibre test specimen damage -form；E is to add
2.0% waste tire wheel hub steel fibre test specimen damage -form.
Fig. 4 is that embodiment 1 rupture strength tests test specimen damage -form；A is to add 1.0% waste tire wheel hub steel fibre examination
Through crack in part beam body span centre；B is to add the steel being pulled out when 1.0% waste tire wheel hub steel fibre test specimen beam body is destroyed
Fiber；C is to add the section after 1.0% waste tire wheel hub steel fibre test specimen beam body is destroyed.
Specific embodiment
Using different intensity grades concrete (C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65,
C70, C75, C80) the discarded wheel hub steel fibre that mixes different proportion (fiber volume rate 0.5%～2.0%) makes steel fibre water
Cement concrete.
Embodiment 1
To make 1m3C30 concrete mix discarded wheel hub steel fibre as a example, specific embodiments are as follows：
1. calculate analysis and determine that the match ratio of discarded wheel hub steel fiber reinforced concrete is：Cement 453kg/m3, water 195kg/m3,
Sand 560kg/m3, particle diameter is the rubble 1192kg/m of 15mm3, the incorporation volume fraction respectively 0% of discarded wheel hub steel steel fibre,
0.5th, 1.0%, 1.5%, 2.0% it is converted into quality and is respectively 0kg/m3、39kg/m3、78kg/m3、117kg/m3、156kg/m3；
2. the sand taking 560kg is poured among mixer, and paving is spread in uniform for the steel fibre of quality needed for about 1/3 shake
Among sand, then it is stirred, until mix is uniform；
3. take the cement of 453kg and the water of 195kg to be poured among mixer respectively, then be stirred, in the mistake of mix
Uniform for the steel fibre of quality needed for about 1/3 shake is spread and is layered on wherein by Cheng Zhongzai, continues stirring up to mix after the completion of spreading paving
Uniformly；
4. the rubble being 15mm by the particle diameter of 1192kg is poured among mixer, is stirred, during mix
The steel fibre of last about 1/3 mass uniformly is shaken to spread and is layered on wherein, continue stirring until mix is uniform after the completion of spreading paving, steel
Fiber is evenly distributed among concrete that not forming sticks together is considered as stirring；
5. the steel fiber reinforced concrete being stirred is loaded among die trial, put vibratory compaction on a vibration table, place 12h laggard
The row demoulding, and the test specimen after abjection is placed on maintenance 7 under curing box internal standard condition (20 ± 2 DEG C of temperature, humidity more than 95%)
My god, 28 days.
Fiber cement concrete is made using discarded wheel hub steel fibre
Attached：To C30 concrete, mix respectively volume fraction be 0%, 0.5%, 1.0%, 1.5%, 2.0% discarded wheel hub
Steel fibre, at the standard conditions, maintenance 7 days, after 28 days, carry out compression strength, rupture strength test, its result such as following table institute
Show：
Compressive strength test result (unit：MPa)
As can be seen from the above table, mix the discarded concrete seven sky of wheel hub steel fibre and the compression strength of 28 days is all higher than
Do not mix the plain concrete of steel fibre, when the volume of steel fibre often increases by 0.5%, the compression strength of 7 days or 28 days will increase
Plus between about 5%～8%.The compression strength of discarded wheel hub steel fiber reinforced concrete improves a lot compared with plain concrete.
Rupture strength result of the test (unit：MPa)
As can be seen from the above table, mix the discarded concrete seven sky of wheel hub steel fibre and the rupture strength of 28 days is all higher than
Do not mix the plain concrete of steel fibre, when the volume of steel fibre often increases by 0.5%, the compression strength of 7 days or 28 days will increase
Plus between about 10～20%, when steel fiber volume ratio volume is 0.5%, rupture strength reaches 5.03MPa, has met heavy duty
Traffic and extra heavy duty traffic are not less than the requirement of 5.0MPa to cement concrete pavement rupture strength standard value.Discarded wheel hub steel is fine
The rupture strength of dimension concrete improves a lot compared with plain concrete.
Normal concrete has the advantages that compression strength is high, but its tensile property and cracking resistance are poor, and discarded wheel
Hub steel fibre is the steel fibre being made using special steel material, and it has the advantages that tensile strength is high, and its tensile strength is general
It is far longer than the tensile strength of concrete in more than 1300MPa, steel fibre is incorporated among concrete and can be good at combining
Therebetween advantage, after concrete stress produces tiny crack, steel fibre will undertake the tension of a part and stop
The further expanding of distress in concrete, when power continues to increase, steel fibre continues to bear tension until steel fibre is from concrete
Till middle pull-out was lost efficacy, in whole process, the compression strength of concrete, rupture strength are all significantly improved, cracking resistance
Performance is strengthened.
Claims (3)
1. a kind of waste tire wheel hub fiber concrete is it is characterised in that this concrete includes the following raw material：Cement 400-500
Part, water 180-220 part, sand 500-600 part, particle diameter is rubble 1000-1200 part of 5 ~ 31.5mm；The mixing of discarded wheel hub steel fibre
Entering volume fraction is 0% ~ 2.0%.
2. the waste tire wheel hub fiber concrete described in claim 1 is it is characterised in that this concrete includes the following raw material：
453 parts of cement, 195 parts of water, 560 parts of sand, particle diameter is 1192 parts of the rubble of 15mm, and the incorporation volume fraction of discarded wheel hub steel fibre is
0% or 0.5% or 1.0% or 1.5% or 2.0%.
3. the production method of the waste tire wheel hub fiber concrete described in claim 1 or 2 is it is characterised in that include as follows
Step：
（1）Sand is poured among mixer, uniform for the discarded wheel hub steel fibre of quality needed for 1/3 shake is spread and is layered on sand
Among son, then it is stirred, until mix is uniform；
（2）Further cement and water are poured among mixer respectively, then are stirred, again by 1/3 during mix
The uniform shake of the discarded wheel hub steel fibre of required quality is spread and is layered on wherein, continues stirring until mix is uniform after the completion of spreading paving；
（3）Again stone is poured among mixer, is stirred, by the discarded wheel of last 1/3 mass during mix
The uniform shake of hub steel fibre is spread and is layered on wherein, continues stirring up to mix uniformly, steel fibre is uniformly distributed after the completion of spreading paving
Not forming among concrete sticks together is considered as stirring, and obtains the discarded wheel hub steel fiber reinforced concrete being stirred；
（4）The discarded wheel hub steel fibre steel fiber reinforced concrete being stirred is loaded among die trial, puts vibratory compaction on a vibration table,
Carry out the demoulding after placing 12h, and the test specimen after abjection is placed on 20 ± 2 DEG C of temperature, lower maintenance in the curing box of humidity more than 95%
7 days, 28 days, you can complete the production of waste tire wheel hub fiber concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859500.XA CN106431114A (en) | 2016-09-28 | 2016-09-28 | Waste tire hub fiber concrete and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859500.XA CN106431114A (en) | 2016-09-28 | 2016-09-28 | Waste tire hub fiber concrete and production method thereof |
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| CN106431114A true CN106431114A (en) | 2017-02-22 |
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| CN201610859500.XA Pending CN106431114A (en) | 2016-09-28 | 2016-09-28 | Waste tire hub fiber concrete and production method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328994A (en) * | 2018-03-29 | 2018-07-27 | 吉林重通成飞新材料股份公司 | A kind of anti-crack concrete and preparation method thereof |
| CN114278368A (en) * | 2022-01-07 | 2022-04-05 | 安徽铜冠（庐江）矿业有限公司 | Filling protective layer based on steel fiber concrete and construction method |
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| CN102010158A (en) * | 2010-09-27 | 2011-04-13 | 东莞市大忠电子有限公司 | Steel rim concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328994A (en) * | 2018-03-29 | 2018-07-27 | 吉林重通成飞新材料股份公司 | A kind of anti-crack concrete and preparation method thereof |
| CN114278368A (en) * | 2022-01-07 | 2022-04-05 | 安徽铜冠（庐江）矿业有限公司 | Filling protective layer based on steel fiber concrete and construction method |
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Application publication date: 20170222 |
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