CN105776974B - Low-cost concrete and its production technology - Google Patents
Low-cost concrete and its production technology Download PDFInfo
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- CN105776974B CN105776974B CN201610166681.8A CN201610166681A CN105776974B CN 105776974 B CN105776974 B CN 105776974B CN 201610166681 A CN201610166681 A CN 201610166681A CN 105776974 B CN105776974 B CN 105776974B
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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
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
-
- 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 provides a kind of low-cost concrete and its production technology, the concrete is blended by following component：The road milling waste material of 40 70 parts by weight, the iron tailings of 5 15 parts by weight, the cement of 15 30 parts by weight, the additive of 0.02 0.2 parts by weight, and 10 50 parts of water；The milling waste material is the graded aggregate as made from asphalt concrete pavement milling waste material.This method can be such that road-surface milling material and scrap iron mine tailing is fully recycled, and the concrete for meeting needs is obtained with relatively low production cost.
Description
Technical field
The present invention relates to a kind of concrete production technology, more particularly to a kind of low-cost concrete production technology, particularly
Ground is related to a kind of low-cost concrete and its production technology comprising iron tailings and road-surface milling material.
Background technology
Increasing with marketing concrete, commerical ready-mixed concrete market competition is growing more intense, commerical ready-mixed concrete enterprise
The high profit epoch of industry become history already.In face of this situation, the production cost of commerical ready-mixed concrete is reduced, business can be increased
The competitiveness of product concrete commercially.How rationally effective cost control, is the survival and development of commerical ready-mixed concrete producer
It is crucial.
In addition, in the last few years, with the fast development in mine, mill tailings amount is continuously increased, according to incompletely statistics, at present
The annual iron selection tailings that there are about 700,000,000 tons are dropped, and these iron selection tailings sand cumulative volumes are up to more than 3 billion cubic meters.A large amount of mine tailings and
Its unreasonable problem for storing up generation, causes domestic relevant departments and the great attention of knowledgeable people.
CN103467014A discloses a kind of concrete, including following components, and each component is respectively according to parts by weight：Cement
180~280 parts by weight；The parts by weight of miberal powder 50~70；The parts by weight of flyash 50~80；The parts by weight of stone 920~980；Chip 700
~750 parts by weight；The parts by weight of sand 100~200；The parts by weight of water 170~200；The parts by weight of water reducer 5~9；CTF concrete synergy
The parts by weight of agent 1.8~2.5.
CN105152566A discloses a kind of concrete additive, includes the raw material of following parts by weight：Flyash 4~16
Part, 4~10 parts of silicon dioxide powder, 4~16 parts of polypropylene fibre, 1~9 part of calcium powder, 1~9 part of lignin sulfonic acid calcium powder, acrylic acid
4~10 parts of emulsion.
CN103524096A discloses a kind of fiber concrete, and the fiber concrete component and parts by weight are as follows：Aggregate：
2.5-30%；Concrete：20-90%；Steel fibre or carbon fiber：1-20%；Additive：1-10%；Polystyrene fiber：0-
10%.
CN105060752A discloses a kind of active higher, lower concrete admixture of cost of manufacture, and concrete is blended
The raw material of material include cobble powder, flyash, agstone, and the cobble powder, flyash, agstone are well mixed.
CN103819148A discloses a kind of steel slag concrete, composed of the following components：Cement, water, weight crystal sand, stone,
Sintered balls, how series high-efficiency water-reducing agent, swelling agent, flyash.
CN103482938A discloses a kind of anti-crack concrete, and the component and content of anti-crack concrete are as follows：1m3Concrete
In contain cement 220-480kg, fine aggregate 680-740kg, coarse aggregate 650-800kg, rubber grain 220-415kg, flyash
12-45kg, waste polystyrene foam particle 10-35kg, water 160-190kg, additive 4.5-8.0kg, miberal powder 3.5-
6.5kg。
" research of middle-and-low strength concrete low-cost and high-performance ", Ma Baoguo etc., concrete, 2004 (8)：45-46, it is public
A kind of middle-and-low strength concrete C20-C50 is opened, it is indicated that high performance and production cost are that current Concrete Industry is badly in need of solving
Key issue, by research, further point out flyash, miberal powder and mix again instead of Portland cement 40%~60%, energy
Concrete work, endurance quality are enough effectively improved, while production cost reduces by 6~7 yuan/m3。
With the fast development of highway in China cause, the mileage of highway is increasingly longer.Some high speeds built in early days
Highway is faced with overhaul or enlarging, how using the top course damaged, particularly asphalt surface course gradually by the weight of people
Depending on.
Some scientific researches have been carried out in the comprehensive utilization for mine tailing in recent years, are replaced using iron tailings
Clinker produces siliceous raw material, to reduce raw grinding energy consumption and be obviously improved burnability of raw material.
If the various waste materials can be used, the cost of concrete can be rationally reduced.However, how sharp
The concrete for meeting standard requirement is produced with the waste material, then there is many technology barriers, always to low-cost concrete
Production brings difficulty.This area needs a kind of low-cost concrete and its production technology.
The content of the invention
To overcome above-mentioned technical problem present in prior art, the present inventor divides by further investigation and lot of experiments
There is provided following technical scheme for the characteristics of having analysed each component and interaction relationship.
In one aspect of the invention there is provided a kind of low-cost concrete, it is blended by following component：40-70 weights
Measure part road milling waste material, the iron tailings of 5-15 parts by weight, the cement of 15-30 parts by weight, 0.02-0.2 parts by weight it is additional
Agent, and 10-50 parts of water；The milling waste material is the graded aggregate as made from asphalt concrete pavement milling waste material.
The inventors discovered that, more pitch is contained in road milling waste material, especially road-surface milling waste material, therefore, it is possible to
Iron tailings is realized into preferable cladding, it is enable to and oxygen and extraneous effectively completely cuts off, it is to avoid the oxidation of iron tailings.
Optionally, the enhancing carbon fiber of 0.1-2.0 parts by weight is also included in the preparing raw material of the concrete.The carbon fiber
Surface preferably be coated to be strengthened with modified epoxy.
Preferably, the graded aggregate as made from asphalt concrete pavement milling waste material passes through the side that comprises the following steps
Method is obtained：
(1) milling is carried out to asphalt concrete pavement, first layer milling thickness is 2-6cm, and second layer milling thickness is 7-
10cm；
(2) first layer milling material is sieved, collects 10-30mm particle, will be greater than after 30mm Particle Breakage again
It is secondary to be sieved, 10-30mm particle is obtained, particle A is denoted as；Powder collection less than 10mm is standby, and the particle is denoted as
Grain B；
(3) second layer milling material is crushed, screening collect 10-20mm particle, be denoted as particle C, by particle A,
Grain B and particle C is with (40-50):(5-10):The weight ratio of (20-30) carries out level with mixing, obtains graded aggregate.
In the present invention, the composition and property of first layer milling material and second layer milling material are fully taken into account, by it with institute
State specific particle diameter and ratio carries out level and matched somebody with somebody, the milling material of various particle diameters is realized sufficient performance complement, such as mixed
Aggregate dense packing effect can be realized in solidifying soil, makes obtained concrete that there is higher intensity.And for example, first layer milling material has
Higher bitumen content, it is non-breakable, with stronger toughness, greater particle size can be used, second layer milling material contains more
Sandstone, with higher intensity.Compared with road-surface milling material is simply crushed in the prior art, the grading method of the invention
The intensity of concrete can be made to improve more than 1 times.
It is particularly preferred that in the level of step (3) is with mixing, being additionally added the slow of 0.5-1.5 parts by weight and splitting solidifying cation soon
Type emulsified asphalt.
The emulsified asphalt is preferably through use N- [2- hydroxyl -3- NPEs] propyltrimethylammonium chloride
Ammonium carries out emulsification to pitch as emulsifying agent and is made.The inventors discovered that, when using the emulsifying agent to prepare emulsified asphalt, energy
It is enough that larger emulsifying effectiveness is realized with minimum consumption, make pitch that there is preferable regeneration effect.
SiO in the iron tailings2Content is preferably 35.0-45.0 weight %, Fe2O3Content is preferably 20.0-22.0%,
Al2O3Content is preferably 13.5-16.5, and CaO content is preferably 6.0 weight %-10.0 weight %, and content of MgO is preferably 3.0-
3.3 weight %, and preferably mixed with based on iron tailings gross weight meter 1.0-5.0%, preferably 2.0-3.0% calcium hydroxide.
The inventors discovered that, in the present invention, phase can occur for milling material (particularly fine grained milling material) and iron tailings
Mutual Cooperative Excitation effect, for example can be by reacting the iron excited in milling material and iron tailings, calcium, aluminium active material as follows：
3Ca(OH)2+Al2O3+ 3CaSO4+28H2O→3CaO·Al2O3·3CaSO4·31H2O；
3Ca(OH)2+Al2O3+3CaSO4+9H2O→3CaO·Al2O3·CaSO4·12H2O
Wherein sodium sulphate can react the calcium sulfate of generation with calcium hydroxide, and calcium sulfate can respectively give birth to drated calcium aluminate
Into high sulfur type and low sulfur type hydrated calcium aluminate sulfate crystal, play a part of the stable ore deposit tailings structure of cementing, densification.Therefore it is of the invention
People has found that calcium hydroxide is mixed in iron tailings can make iron tailings structure further stable, fine and close, and can also reduce sharp
Send out the consumption of calcium hydroxide in agent.The present inventor's research is found, by the hydroxide that 1.0-5.0 weight % is mixed in iron tailings
Calcium, the intensity of road pavements can generally improve 5-10%.
The iron tailings of preferred high silicon, high calcium and high Fe content, is more beneficial for progress and the iron tail of above-mentioned reaction in the present invention
The stabilization and densification of ore deposit.
In the present invention, the concrete admixture is particularly preferably comprising either by making following monomer (I) and monomer
(II) copolymer that copolymerization is obtained：
Wherein R1For C1-C6 alkyl, such as ethyl, R2For C2-C8 alkyl, such as propyl group, n is 3-6 integer；With
(II) α, β-aromatics unsaturated carboxylic acid；
Wherein the weight ratio of monomer (I) and (II) is 60-90:10-40, the weight average molecular weight of the copolymer is 600-
1800。
In the monomer (I) structure, the presence of the ethoxy unit repeated further enhancing the diminishing of concrete
Performance, so as to overcome the not enough defect of the concrete water reducing ability as made from reworked material (particularly road milling material).
Most preferably, the α, β-aromatics unsaturated carboxylic acid have following chemical structural formula：
It was found that by being replaced in two metas of phenyl ring with F, due to electronic effect, compared with the substituted or non-substituted forms of single F,
The water-reducing property of copolymer can be further enhanced, so as to be added in Concrete described in as little as 0.01 weight %
Additive can just realize required water-reducing property.
This additive polymer with excellent water-reducing property of the present invention has not been reported.
Polymerization can be carried out using the conventional polymerization in this area, such as polymerisation in bulk, polymerisation in solution, emulsion
Polymerization or suspension polymerisation.
The present inventor has found by research, by adding such additive, can provide excellent water-reducing property, prevent
The mobility of concrete is reduced over time, is very beneficial for being constructed in concrete is filled, and is made it possible to effectively
The use of cement is reduced, the defect for overcoming the water-reducing property and intensity of reworked material not enough so that concrete constructs part intensity height, full
Sufficient necessary requirement.
The modified epoxy compound is preferably the epoxy resin compound that silicone compounds are modified.
It is particularly preferred that the silicone compounds are preferably the compound shown in lower formula (III)：
Wherein, Me represents methyl, and R is ethyl or propyl group, preferably ethyl, and n is 5-20, and preferably 8.
When being modified using the silicone compounds, epoxy resin can be made to be formed firmly by loose linear structure
Close network structure, the network structure and then effectively can coat and fix carbon fiber, and make to be formed between carbon fiber
Crosslinking, so as to greatly strengthen the intensity of concrete.After tested, the carbon fibre coated with the modified epoxy of the inventive method
Dimension, its tensile strength is about 2.3 times of the carbon fiber of ordinary epoxy resin coating.
In another aspect of this invention, the production technology of above-mentioned low-cost concrete is additionally provided, it is by by concrete
Each component is mixed.
Embodiment
By specific examples below and comparative example, the present invention is further described, but embodiment is merely to illustrate, not
The scope of the present invention can be limited.
In the present invention, properties test is referred to following standard progress：1、GB/T 1346《Cement normal consistency
Water consumption, setting time, the stability method of inspection》；2nd, cement water reducing agent quality standard and test method JGJ 56-84；With
3rd, JTGE51-2009 highways stabilized with inorganic binder testing of materials code.
Embodiment 1
The preparation of concrete admixture
The chemical structural formula of monomer (I) is：
Wherein R1For methyl, R2For ethyl, n is 5, the monomer can by by polyethylene glycol and methyl base acrylic acid according to
Conventional esterification procedures are esterified and then esterification products are made with ethyoxyl chlorine according to conventional elimination reaction, or can be straight
Connect commercially available from Aldrich；
The chemical structural formula of monomer (II) is：
The monomer is same available commercially from Aldrich；
Using emulsion polymerization, 80g monomers (I) and 13g are added into round-bottomed flasks of the 500mL with mechanical stirring device
Then monomer (II) and 200mL deionized waters, logical nitrogen under stirring add 0.1g ammonium persulfates as initiator, be warming up to
Polymerization temperature, polymerization temperature is 80 DEG C, keeps reaction 4 hours, and polymerizate is reclaimed after terminating reaction, through measurement gained copolymer
Weight average molecular weight be about 1650.
Embodiment 2
Concrete is prepared by the mixing of following component：The road milling waste material of 50 parts by weight, the iron tailings of 10 parts by weight, 20
The cement of parts by weight, additive prepared by the embodiments 1 of 0.03 parts by weight, and 30 parts of water；The milling waste material is by pitch
Graded aggregate made from concrete road surface milling waste material；The graded aggregate as made from asphalt concrete pavement milling waste material leads to
Cross following steps acquisition：(1) milling is carried out to the asphalt concrete pavement to be renovated of 107 national highways, first layer milling thickness is
5cm, second layer milling thickness is 10cm；(2) first layer milling material is sieved, collects 10-30mm particle, will be greater than
Sieved again after 30mm Particle Breakage, obtain 10-30mm particle, be denoted as particle A；By the powder collection less than 10mm
Standby, the particle is denoted as particle B；(3) second layer milling material is crushed, 10-20mm particle is collected in screening, is denoted as particle
C, by particle A, particle B and particle C with 50:10:25 weight ratio carries out level with mixing, obtains graded aggregate.The iron
Mine tailing is the crude tailings from Ma'an Mountain's iron ore, and specific surface area is about 180m2/ g, density is about 2.41g/cm3, d50 particle diameters are about
42.00 μm, addition has 2.0% calcium hydroxide.
According to standard Road Design specification, making is carried out using the concrete material as basic unit on highway, its 7d is tested
Compression strength.Through measurement, its 7d compression strength is 3.67MPa, complies fully with requirement of the highway to basic unit's 7d compression strength；
Meanwhile, it is 88% to measure its water reducer shrinkage ratio (%).
Comparative example 1
The operation of embodiment 2 is repeated, difference is to use conventional commercial polycarboxylate high performance water-reducing agent concrete
Additive.It is 100% to measure its water reducer shrinkage ratio (%).
Comparative example 2
The operation of embodiment 2 is repeated, the difference is that only and calcium hydroxide is added without in iron tailings.Test its 7d pressure resistance
Spend for 2.03MPa, do not meet requirement of the highway to the 7d compression strength of upper basic unit, only meet common road such as one-level
Requirement of the highway to traffic base material.
By above-described embodiment and comparative example it will be apparent that, by using present invention process, road-surface milling material can be made and useless
Iron tailings is fully recycled, and the concrete for fully meeting needs, such as its intensity are obtained with relatively low production cost
Improve, shrinkage factor is substantially reduced, enabling the consumption of a large amount of consumptions and cement for reducing concrete reclaimed water.Such technology effect
Fruit is that previous institute is unexpected.
This written description discloses the present invention, including optimal mode using example, and also enables those skilled in the art
Manufacture and using the present invention.The present invention can patentable scope be defined by the claims, and this area skill can be included
Other examples that art personnel expect.If this other examples have the structural elements of literal language not different from claims
Element, or if this other examples include equivalent structure element of the literal language without substantial differences with claims,
Then this other examples are intended to be within the scope of claims.In the case where not resulting in inconsistent degree, by reference to
It will be incorporated herein in place of all references referred to herein.
Claims (4)
1. a kind of low-cost concrete, it is blended by following component：The road milling waste material of 40-70 parts by weight, 5-15 weights
Measure the iron tailings of part, the cement of 15-30 parts by weight, the additive of 0.02-0.2 parts by weight, and 10-50 parts of water；The milling
Waste material is the graded aggregate as made from asphalt concrete pavement milling waste material；
The wherein described graded aggregate as made from asphalt concrete pavement milling waste material is obtained by the method comprised the following steps：
(1) milling is carried out to asphalt concrete pavement, first layer milling thickness is 2-6cm, and second layer milling thickness is 7-10cm；
(2) first layer milling material is sieved, entered again after collecting 10-30mm particle, the Particle Breakage that will be greater than 30mm
Row screening, obtains 10-30mm particle, is denoted as particle A；Powder collection less than 10mm is standby, and the particle is denoted as particle B；
(3) second layer milling material is crushed, 10-20mm particle is collected in screening, is denoted as particle C, by particle A, particle B and
Particle C is with (40-50):(5-10):The weight ratio of (20-30) carries out level with mixing, obtains graded aggregate；
SiO in the iron tailings2Content is 35.0-45.0 weight %, Fe2O3Content is 20.0-22.0%, Al2O3Content is
13.5-16.5, CaO content is 6.0 weight %-10.0 weight %, and content of MgO is 3.0-3.3 weight %, and mixed with based on iron
Mine tailing gross weight meter 1.0-5.0% calcium hydroxide；
The enhancing carbon fiber of 0.1-2.0 parts by weight is also included in the preparing raw material of the concrete；Use on the surface of the carbon fiber
Modified epoxy is coated to be strengthened, and the modified epoxy compound is the epoxy that silicone compounds are modified
Resin compound.
2. low-cost concrete according to claim 1, wherein in the level of step (3) is with mixing, being additionally added 0.5-1.5
The slow of parts by weight splits solidifying cationic emulsified asphalt soon.
3. low-cost concrete according to claim 2, wherein the emulsified asphalt is by using N- [2- hydroxyl -3- nonyls
Base phenol polyethenoxy ether] hydroxypropyltrimonium chloride as emulsifying agent to pitch carry out emulsification be made.
4. the production technology of low-cost concrete according to any one of the preceding claims, it is by by concrete each group
Divide and be mixed to prepare low-cost concrete.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610166681.8A CN105776974B (en) | 2016-03-22 | 2016-03-22 | Low-cost concrete and its production technology |
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| CN201610166681.8A CN105776974B (en) | 2016-03-22 | 2016-03-22 | Low-cost concrete and its production technology |
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| CN105776974A CN105776974A (en) | 2016-07-20 |
| CN105776974B true CN105776974B (en) | 2017-07-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111499337A (en) * | 2020-05-08 | 2020-08-07 | 张延年 | Multi-solid waste asphalt concrete and preparation method thereof |
| CN114956678A (en) * | 2022-04-24 | 2022-08-30 | 路爱君 | Recycled cement concrete of asphalt concrete milling material and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863629A (en) * | 2010-06-28 | 2010-10-20 | 长治市漳山建材有限公司 | Method for preparing sulphoaluminate cement clinker mainly from industrial solid waste |
| CN102493316A (en) * | 2011-12-07 | 2012-06-13 | 广东省长大公路工程有限公司 | Production method of plant-mixed cold recycling foamed asphalt concrete |
-
2016
- 2016-03-22 CN CN201610166681.8A patent/CN105776974B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863629A (en) * | 2010-06-28 | 2010-10-20 | 长治市漳山建材有限公司 | Method for preparing sulphoaluminate cement clinker mainly from industrial solid waste |
| CN102493316A (en) * | 2011-12-07 | 2012-06-13 | 广东省长大公路工程有限公司 | Production method of plant-mixed cold recycling foamed asphalt concrete |
Non-Patent Citations (1)
| Title |
|---|
| 基于热再生技术的沥青混凝土路面铣刨工艺;方杨等;《公路》;20130831(第8期);307-308 * |
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