CN101913839A - Color recycled concrete for producing decorative blocks - Google Patents
Color recycled concrete for producing decorative blocks Download PDFInfo
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- CN101913839A CN101913839A CN2010102515502A CN201010251550A CN101913839A CN 101913839 A CN101913839 A CN 101913839A CN 2010102515502 A CN2010102515502 A CN 2010102515502A CN 201010251550 A CN201010251550 A CN 201010251550A CN 101913839 A CN101913839 A CN 101913839A
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- concrete
- recycled concrete
- decorative block
- flyash
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- 239000004567 concrete Substances 0.000 title claims abstract description 65
- 239000004568 cement Substances 0.000 claims abstract description 27
- 239000003245 coal Substances 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 22
- 239000003365 glass fiber Substances 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 15
- 239000001055 blue pigment Substances 0.000 claims abstract description 14
- 239000001054 red pigment Substances 0.000 claims abstract description 14
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 5
- 239000010881 fly ash Substances 0.000 claims description 26
- 238000001354 calcination Methods 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 21
- CUBCNYWQJHBXIY-UHFFFAOYSA-N benzoic acid;2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC=C1.OC(=O)C1=CC=CC=C1O CUBCNYWQJHBXIY-UHFFFAOYSA-N 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 15
- 150000002790 naphthalenes Chemical class 0.000 claims description 14
- RFAFBXGYHBOUMV-UHFFFAOYSA-N calcium chromate Chemical compound [Ca+2].[O-][Cr]([O-])(=O)=O RFAFBXGYHBOUMV-UHFFFAOYSA-N 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000011161 development Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 239000000049 pigment Substances 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000003086 colorant Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 229960004889 salicylic acid Drugs 0.000 abstract description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 abstract 2
- 239000000446 fuel Substances 0.000 abstract 2
- 230000035699 permeability Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000006722 reduction reaction Methods 0.000 abstract 1
- 239000001052 yellow pigment Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 17
- 238000007906 compression Methods 0.000 description 17
- 208000034189 Sclerosis Diseases 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 3
- 239000002075 main ingredient Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000013543 active substance Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical group O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
-
- 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
- C04B2111/00293—Materials impermeable to liquids
-
- 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
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of building materials and particularly relates to color recycled concrete for producing decorative blocks. The color recycled concrete consists of fast hardening sulphate aluminum cement, calcined coal gangue, pulverized fuel ash, carbide slag, salicylic acid, recycled coarse aggregate, recycled fine aggregate, a red pigment, a yellow pigment, a blue pigment, a naphthalene-series high-efficiency water reducing agent, cellulose fiber and glass fiber. The fast hardening sulphate aluminum cement is used to replace silicate-series cement, the calcined coal gangue, the pulverized fuel ash and the carbide slag are taken as gelled materials and the recycled coarse aggregate and the recycled fine aggregate produced by the processing of waste concrete are used. Three pigments with basic colors are adopted, so that various other colors can be obtained by mixing the pigments according to a design requirement. The concrete of the invention has the advantages of easy molding, rapid intensity development, high compressive strength, high permeability resistance, low contractibility rate, uniform color, waste recycling, energy conservation, reduction in consumption, capability of meeting the strategy requirement of sustainable development of construction industry and good market prospect.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of production decorative block color recycled concrete.
Background technology
Along with the quick raising of Chinese national economy level, construction industry is more and more higher to material of construction each side performance demands.The residential quarters enclosure wall, building roofing and ground, the square enclosure wall, building by laying bricks or stones of anti-slope protection bank adopts the situation of concrete decorative block more and more general.And the pattern of concrete decorative block tends to diversified development especially, Colour building blocks, splits from building block, the building block of cutter hair, the building block of plucking striped, polishing building block, the building block of Peng's shape, molding building block, reveals the building block of gathering materials, imitative old building block, glaze facing block, the building block of perforation lattice etc. and all successfully produce and use in China.
Along with the dismounting of DEMOLITION OF OLD CITY, perhaps increasing of natural disaster, building waste quantity is also more and more, and simple landfill is actually the significant wastage to this rubbish " resource ".For the disposal of building waste, begun to advocate resource utilization and efficiently utilized at present.The method of utilizing that building waste is best is, with its letter sorting, the reprocessing of cleaning back, as can be used to prepare recycled coarse aggregate and recycled fine aggregate after waste concrete block fragmentation, the classification.Although recycled coarse aggregate and recycled fine aggregate not as natural aggregate, by proper design of mixture ratio, can be produced well behaved concrete at many aspect of performances fully.But because at present recycled coarse aggregate and recycled fine aggregate still are difficult to be accepted by most of ready mixed concrete enterprise, therefore, the inventor thinks that in advance the production that recycled coarse aggregate and recycled fine aggregate are used for various concrete segments is a kind of new innovation and creation.
Summary of the invention
The objective of the invention is to propose a kind of production decorative block color recycled concrete, this color recycled concrete adopts recycled coarse aggregate and recycled fine aggregate fully, do not use any natural aggregate, and utilized a large amount of flyash and through the coal gangue of calcining and activating.Owing to adopted quick hardening sulphoaluminate cement, this concrete coagulation setting rate is very fast, and strength development is rapid, and the product time for competiton is shorter, the production efficiency height.In order to have guaranteed that time enough stirs the preparation concrete mix and is pressed, in this concrete admixture suitable retardant.This concrete adopts the pigment of three kinds of basic colors, can mix other shades of colour according to design requirements.This concrete formation is easy, and strength development is rapid, the ultimate compression strength height, and impervious good, shrinking percentage is low, and color is even.This concrete is sharp useless, energy-conservation, and consumption reduction meets the requirement of the construction industry strategy of sustainable development, good market prospect.A kind of production decorative block color recycled concrete that the present invention proposes, this color recycled concrete is made up of quick hardening sulphoaluminate cement, calcining coal gangue, flyash, carbide slag, Whitfield's ointment, recycled coarse aggregate, recycled fine aggregate, red pigment, yellow ultramarine, blue pigments, naphthalene series high-efficiency water-reducing agent, cellulose fiber peacekeeping glass fibre, and the weight ratio of each component is as follows:
Quick hardening sulphoaluminate cement 100
Calcining coal gangue 30-60
Flyash 15-40
Carbide slag 3-12
Whitfield's ointment 0.001-0.02
Recycled coarse aggregate 300-500
Recycled fine aggregate 200-360
Red pigment 0-15
Yellow ultramarine 0-15
Blue pigments 0-15
Naphthalene series high-efficiency water-reducing agent 0.4-1.5
Cellulosic fibre 0.1-0.45
Glass fibre 0.2-0.60.
The preferable weight ratio of each component is:
Quick hardening sulphoaluminate cement 100
Calcining coal gangue 32-46
Flyash 15-30
Carbide slag 3-10
Whitfield's ointment 0.001-0.01
Recycled coarse aggregate 320-470
Recycled fine aggregate 210-350
Red pigment 0-10
Yellow ultramarine 0-10
Blue pigments 0-10
Naphthalene series high-efficiency water-reducing agent 0.4-1.2
Cellulosic fibre 0.2-0.40
Glass fibre 0.3-0.60.
Among the present invention, the strength grade of described quick hardening sulphoaluminate cement is more than or equal to 42.5.
Among the present invention, the calcining temperature of described calcining coal gangue greater than 600 ℃ less than 1000 ℃, specific surface area is more than or equal to 420m
2/ Kg.
Among the present invention, described flyash is a kind of in I level F class flyash or the II level F class flyash.
Among the present invention, the CaO weight content is more than or equal to 32% in the described carbide slag, and specific surface area is more than or equal to 300m
2/ Kg.
Among the present invention, described recycled coarse aggregate is a continuous grading, and particle size range is 5-15mm, piles up porosity smaller or equal to 50%, contains mud weight smaller or equal to 4%.
Among the present invention, the fineness modulus of described recycled fine aggregate contains mud weight smaller or equal to 5% greater than 2.0 less than 3.5.
Among the present invention, the length of described cellulosic fibre greater than 3.0mm less than 9.0mm.
Among the present invention, described glass fibre is an alkali resistant glass fibre, and its diameter is less than 50 μ m, length greater than 3.0mm less than 9.0mm.
When product of the present invention used, the add-on of mixing water was the 5.5%-7.5% of quick hardening sulphoaluminate cement, calcining coal gangue, flyash, carbide slag, Whitfield's ointment, recycled coarse aggregate, recycled fine aggregate, red pigment, yellow ultramarine, blue pigments, naphthalene series high-efficiency water-reducing agent, cellulose fiber peacekeeping glass fibre gross weight.
Preparation method of the present invention, concrete steps are: take by weighing each component by aforementioned each part by weight, with recycled coarse aggregate, recycled fine aggregate, red pigment, yellow ultramarine, blue pigments and naphthalene series high-efficiency water-reducing agent are done in advance and are mixed to even, add quick hardening sulphoaluminate cement then, calcining coal gangue, flyash, carbide slag, cellulosic fibre, glass fibre and Whitfield's ointment are mixed to uniform state.A kind of production decorative block of gained color recycled concrete adds the denseness that water is stirred to regulation, can be used to the decorative block of moulding various types.
Among the present invention, quick hardening sulphoaluminate cement, calcining coal gangue, four kinds of materials such as flyash and carbide slag are formed the rigid cementitious material system of composite water jointly.The hydration rate of quick hardening sulphoaluminate cement is quite fast, and its hydrated product is mainly ettringite (AFt).The main activating oxide of calcining coal gangue and flyash is Al
2O
3And SiO
2Main ingredient in the carbide slag is Ca (OH)
2Active substance Al in calcining coal gangue and the flyash
2O
3With the gypsum component in the quick hardening sulphoaluminate cement, the main ingredient Ca (OH) in the carbide slag
2One reacts, and forms AFt.And the active substance SiO in calcining coal gangue and the flyash
2With the main ingredient Ca (OH) in the carbide slag
2One reacts, and forms a fairly large number of CSH gel, is filled in the interspersed left space of AFt crystal overlap joint, strengthens the intensity of gelling system.Because the aluminosulfate cement aquation is very fast, usually just condensed about the 20min clock, there is not time enough to finish concrete stirring, transmission, cast and jolt ramming, the present invention is in order to control the hydration rate of quick hardening sulphoaluminate cement, selected a kind of slow setting component that can delay its aquation especially for use, i.e. Whitfield's ointment.Whitfield's ointment is the another name of salicylic acid, owing to contain more oh group in its molecule, is adsorbed in the aluminosulfate cement particle surface, forms one deck adsorption layer, produces hydrogen bond, stops diffusing into of moisture, thereby delays its aquation.Its application property of concrete that adds water stirring preparation like this can keep the long period, the transmission in enough producing, cast cloth and jolt ramming.In case and after the concrete coagulation sclerosis, its intensity just increases at short notice fast, can make the building block demoulding as early as possible and dispatch from the factory, enhance productivity and the place turnaround speed.Recycled coarse aggregate and recycled fine aggregate all form its grain composition ideal by the broken post-treatment of discarded concrete.After recycled coarse aggregate and recycled fine aggregate were arranged in pairs or groups according to the closestpacking theory, the voidage minimum can reduce the consumption of gelling material, improves the economy of building block.Naphthalene series high-efficiency water-reducing agent is a naphthalenesulfonate formaldehyde condensation compound, the polymerization degree is 9-13, dissociate in the water-soluble back of its molecule, become electronegative surface active agent ion, this ionic adsorption produces the mutually exclusive effect of identical charges in gelling material and granules of pigments surface, and these particles are disperseed mutually, help to reduce the concrete water amount thereby improve its intensity, and can improve concrete surface color uniformity and plumpness.Redness, yellow and blueness is a color the most basic in the chromatology, claims " three primary colors " again, is arranged in pairs or groups mutually by these three kinds of pigment, can mix other various color.Three kinds of alkali resistance of pigment are good, are scattered in the concrete gelling system, and not only for the concrete after the sclerosis has presented bright colour, and because volume is suitable, little to the concrete strength influence.The effect of cellulosic fibre is to disperse the string stress of concrete segment, reduces rimose harm, and itself also has moisture-keeping maintaining effect preferably, guarantees that concrete segment intensity still can increase preferably under improper maintenance situation.The effect of glass fibre also is to disperse the string stress of concrete segment, reduces rimose harm, improves the building block impermeability, reduces water-intake rate.The present invention adopts cellulose fiber peacekeeping glass fibre simultaneously, and reason is that the former is a low modulus fiber, helps to prevent the cracking of concrete plastic stage, and the latter is a high modulus fibre, helps to prevent the cracking of concrete in sclerosis stage and carrying stage.
Beneficial effect of the present invention is:
(1) the present invention is without silicate series cement, but utilized quick hardening sulphoaluminate cement, cooperates calcining coal gangue, flyash and carbide slag as gelling material, and utilized recycled coarse aggregate and the recycled fine aggregate that adopts the discarded concrete processing.
(2) formed product of the present invention is easy, and strength development is rapid, the ultimate compression strength height, and impervious good, shrinking percentage is low, and color is even.
(3) the present invention adopts the pigment of three kinds of basic colors, can mix other shades of colour according to design requirements.The color recycled concrete that adopts the present invention to propose cooperates various moulds and technology, can produce the concrete decorative block of size, shape, color and different modeling, realizes architect's design concept, improves resident's life taste.
(4) the present invention has developed a kind of fully with the alternative natural aggregate of regenerated aggregate, and can utilize the color recycled concrete of flyash and calcining and activating coal gangue in a large number, not only setting rate is fast for it, strength development is rapid, and every performance all satisfies " JCT641-2008 decorative buiding block of concrete " standard.
Because this product starting material are selected to meet national energy-saving and emission-reduction and low-carbon economy requirement, product cost is low, and excellent property is applied widely, has a good application prospect.
Embodiment
The following examples are to further specify of the present invention, rather than limit the scope of the invention.
Embodiment 1
A kind of production decorative block color recycled concrete is counted quick hardening sulphoaluminate cement 100 by weight, calcining coal gangue 30, flyash 15, carbide slag 3, Whitfield's ointment 0.001, recycled coarse aggregate 300, recycled fine aggregate 200, red pigment 15, yellow ultramarine 0, blue pigments 0, naphthalene series high-efficiency water-reducing agent 0.4, cellulosic fibre 0.1, glass fibre 0.2 is formulated.After water that adding accounts for this product weight 5.5% stirred, it ties up vigorous denseness was 20s, and the presetting period is 52min, and final setting time is 75min.Take on a red color after the sclerosis.1d ultimate compression strength is 16.5MPa, and 3d ultimate compression strength is 28.3MPa, and 28d ultimate compression strength is 32.2MPa, and impervious grade is P8, and shrinking percentage is 0.042%.With 390mm * 190mm * 190mm holllow building block that this color recycled concrete is produced, when voidage was 40%, strength grade was MU10, and water surface falling head is 8mm in the impermeability test, and drying shrinkage is 0.021%.
Embodiment 2
A kind of production decorative block color recycled concrete is counted quick hardening sulphoaluminate cement 100 by weight, calcining coal gangue 60, flyash 40, carbide slag 12, Whitfield's ointment 0.02, recycled coarse aggregate 500, recycled fine aggregate 360, red pigment 0, yellow ultramarine 15, blue pigments 0, naphthalene series high-efficiency water-reducing agent 1.5, cellulosic fibre 0.45, glass fibre 0.60 is formulated.After water that adding accounts for this product weight 7.0% stirred, it ties up vigorous denseness was 16s, and the presetting period is 1h10min, and final setting time is 1h35min.Be yellow after the sclerosis.1d ultimate compression strength is 19.0MPa, and 3d ultimate compression strength is 31.2MPa, and 28d ultimate compression strength is 34.4MPa, and impervious grade is P9, and shrinking percentage is 0.030%.With 390mm * 190mm * 190mm holllow building block that this color recycled concrete is produced, when voidage was 40%, strength grade was MU15, and water surface falling head is 6mm in the impermeability test, and drying shrinkage is 0.020%.
Embodiment 3
A kind of production decorative block color recycled concrete is counted quick hardening sulphoaluminate cement 100 by weight, calcining coal gangue 40, flyash 35, carbide slag 8, Whitfield's ointment 0.0016, recycled coarse aggregate 400, recycled fine aggregate 310, red pigment 0, yellow ultramarine 0, blue pigments 15, naphthalene series high-efficiency water-reducing agent 1.1, cellulosic fibre 0.35, glass fibre 0.40 is formulated.After water that adding accounts for this product weight 7.5% stirred, it ties up vigorous denseness was 22s, and the presetting period is 1h20min, and final setting time is 1h50min.Be blue after the sclerosis.1d ultimate compression strength is 16.3MPa, and 3d ultimate compression strength is 27.6MPa, and 28d ultimate compression strength is 31.0MPa, and impervious grade is P7, and shrinking percentage is 0.043%.With 390mm * 190mm * 190mm holllow building block that this color recycled concrete is produced, when voidage was 40%, strength grade was MU10, and water surface falling head is 7mm in the impermeability test, and drying shrinkage is 0.022%.
Embodiment 4
A kind of production decorative block color recycled concrete is counted quick hardening sulphoaluminate cement 100 by weight, calcining coal gangue 60, flyash 15, carbide slag 10, Whitfield's ointment 0.0042, recycled coarse aggregate 500, recycled fine aggregate 300, red pigment 6, yellow ultramarine 6, blue pigments 0, naphthalene series high-efficiency water-reducing agent 1.2, cellulosic fibre 0.40, glass fibre 0.60 is formulated.After water that adding accounts for this product weight 6.7% stirred, it ties up vigorous denseness was 23s, and the presetting period is 45min, and final setting time is 57min.Be orange after the sclerosis.1d ultimate compression strength is 15.8MPa, and 3d ultimate compression strength is 26.0MPa, and 28d ultimate compression strength is 30.7MPa, and impervious grade is P7, and shrinking percentage is 0.035%.With 390mm * 190mm * 190mm holllow building block that this color recycled concrete is produced, when voidage was 40%, strength grade was MU10, and water surface falling head is 6mm in the impermeability test, and drying shrinkage is 0.024%.
Embodiment 5
A kind of production decorative block color recycled concrete is counted quick hardening sulphoaluminate cement 100 by weight, calcining coal gangue 40, flyash 30, carbide slag 12, Whitfield's ointment 0.0018, recycled coarse aggregate 400, recycled fine aggregate 320, red pigment 0, yellow ultramarine 5, blue pigments 5, naphthalene series high-efficiency water-reducing agent 1.5, cellulosic fibre 0.35, glass fibre 0.52 is formulated.After water that adding accounts for this product weight 5.8% stirred, it ties up vigorous denseness was 17s, and the presetting period is 48min, and final setting time is 56min.Be green after the sclerosis.1d ultimate compression strength is 20.4MPa, and 3d ultimate compression strength is 32.7MPa, and 28d ultimate compression strength is 36.8MPa, and impervious grade is P10, and shrinking percentage is 0.032%.With 390mm * 190mm * 190mm holllow building block that this color recycled concrete is produced, when voidage was 40%, strength grade was MU15, and water surface falling head is 5mm in the impermeability test, and drying shrinkage is 0.021%.
Claims (10)
1. produce the decorative block color recycled concrete for one kind, it is characterized in that described color recycled concrete is made up of quick hardening sulphoaluminate cement, calcining coal gangue, flyash, carbide slag, Whitfield's ointment, recycled coarse aggregate, recycled fine aggregate, red pigment, yellow ultramarine, blue pigments, naphthalene series high-efficiency water-reducing agent, cellulose fiber peacekeeping glass fibre, the weight ratio of each component is as follows:
Quick hardening sulphoaluminate cement 100
Calcining coal gangue 30-60
Flyash 15-40
Carbide slag 3-12
Whitfield's ointment 0.001-0.02
Recycled coarse aggregate 300-500
Recycled fine aggregate 200-360
Red pigment 0-15
Yellow ultramarine 0-15
Blue pigments 0-15
Naphthalene series high-efficiency water-reducing agent 0.4-1.5
Cellulosic fibre 0.1-0.45
Glass fibre 0.2-0.60.
2. a kind of production decorative block color recycled concrete according to claim 1 is characterized in that the weight ratio of each component is:
Quick hardening sulphoaluminate cement 100
Calcining coal gangue 32-46
Flyash 15-30
Carbide slag 3-10
Whitfield's ointment 0.001-0.01
Recycled coarse aggregate 320-470
Recycled fine aggregate 210-350
Red pigment 0-10
Yellow ultramarine 0-10
Blue pigments 0-10
Naphthalene series high-efficiency water-reducing agent 0.4-1.2
Cellulosic fibre 0.2-0.40
Glass fibre 0.3-0.60.
3. a kind of production decorative block color recycled concrete according to claim 1, the strength grade that it is characterized in that described quick hardening sulphoaluminate cement is more than or equal to 42.5.
4. a kind of production decorative block color recycled concrete according to claim 1, the calcining temperature that it is characterized in that described calcining coal gangue greater than 600 ℃ less than 1000 ℃, specific surface area is more than or equal to 420m
2/ Kg.
5. a kind of production decorative block color recycled concrete according to claim 1 is characterized in that described flyash is a kind of in I level F class flyash or the II level F class flyash.
6. a kind of production decorative block color recycled concrete according to claim 1 is characterized in that the CaO weight content is more than or equal to 32% in the described carbide slag, and specific surface area is more than or equal to 300m
2/ Kg.
7. a kind of production decorative block color recycled concrete according to claim 1 is characterized in that described recycled coarse aggregate is a continuous grading, and particle size range is 5-15mm, piles up porosity smaller or equal to 50%, contains mud weight smaller or equal to 4%.
8. a kind of production decorative block color recycled concrete according to claim 1, the fineness modulus that it is characterized in that described recycled fine aggregate contains mud weight smaller or equal to 5% greater than 2.0 less than 3.5.
9. a kind of production decorative block color recycled concrete according to claim 1, the length that it is characterized in that described cellulosic fibre greater than 3.0mm less than 9.0mm.
10. a kind of production decorative block color recycled concrete according to claim 1 is characterized in that described glass fibre is an alkali resistant glass fibre, and its diameter is less than 50 μ m, length greater than 3.0mm less than 9.0mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102515502A CN101913839B (en) | 2010-08-12 | 2010-08-12 | Color recycled concrete for producing decorative blocks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102515502A CN101913839B (en) | 2010-08-12 | 2010-08-12 | Color recycled concrete for producing decorative blocks |
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| Publication Number | Publication Date |
|---|---|
| CN101913839A true CN101913839A (en) | 2010-12-15 |
| CN101913839B CN101913839B (en) | 2012-11-07 |
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|---|---|---|---|
| CN2010102515502A Expired - Fee Related CN101913839B (en) | 2010-08-12 | 2010-08-12 | Color recycled concrete for producing decorative blocks |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633525A (en) * | 2012-04-27 | 2012-08-15 | 同济大学 | Foam concrete with desulfurized gypsum as main cementing material and preparation method of foam concrete |
| CN104710135A (en) * | 2013-12-11 | 2015-06-17 | 河北建设集团有限公司 | Permeable concrete and preparation method thereof |
| CN105254246A (en) * | 2015-10-19 | 2016-01-20 | 嘉善远大新型墙体有限公司 | Blue concrete block and preparation method thereof |
| CN105839831A (en) * | 2016-03-12 | 2016-08-10 | 施红 | Artificial granite lightweight building block |
| CN108840712A (en) * | 2018-07-27 | 2018-11-20 | 同济大学 | One kind having the sponge concrete of " contain water-be retained-release water " function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559986A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | Mixture material for reproducing concrete of non-sand and large pore and preparing process thereby |
| CN1285534C (en) * | 2004-02-26 | 2006-11-22 | 同济大学 | High performance concrete pumping agent controlling falling degree loss type |
-
2010
- 2010-08-12 CN CN2010102515502A patent/CN101913839B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559986A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | Mixture material for reproducing concrete of non-sand and large pore and preparing process thereby |
| CN1285534C (en) * | 2004-02-26 | 2006-11-22 | 同济大学 | High performance concrete pumping agent controlling falling degree loss type |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633525A (en) * | 2012-04-27 | 2012-08-15 | 同济大学 | Foam concrete with desulfurized gypsum as main cementing material and preparation method of foam concrete |
| CN102633525B (en) * | 2012-04-27 | 2013-10-23 | 同济大学 | Foam concrete with desulfurized gypsum as main cementing material and preparation method of foam concrete |
| CN104710135A (en) * | 2013-12-11 | 2015-06-17 | 河北建设集团有限公司 | Permeable concrete and preparation method thereof |
| CN105254246A (en) * | 2015-10-19 | 2016-01-20 | 嘉善远大新型墙体有限公司 | Blue concrete block and preparation method thereof |
| CN105839831A (en) * | 2016-03-12 | 2016-08-10 | 施红 | Artificial granite lightweight building block |
| CN108840712A (en) * | 2018-07-27 | 2018-11-20 | 同济大学 | One kind having the sponge concrete of " contain water-be retained-release water " function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101913839B (en) | 2012-11-07 |
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