CN110357541A - A kind of recycled fine aggregate concrete and preparation method thereof - Google Patents
A kind of recycled fine aggregate concrete and preparation method thereof Download PDFInfo
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- CN110357541A CN110357541A CN201910737728.5A CN201910737728A CN110357541A CN 110357541 A CN110357541 A CN 110357541A CN 201910737728 A CN201910737728 A CN 201910737728A CN 110357541 A CN110357541 A CN 110357541A
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- fine aggregate
- concrete
- recycled fine
- cement
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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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0675—Macromolecular compounds fibrous from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/18—Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye
-
- 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
- C04B28/04—Portland 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
- 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
Landscapes
- 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)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of recycled fine aggregate concrete poles and preparation method thereof, belong to technical field of concrete, which is prepared by following raw material: 200-300 parts of fine aggregate, 110-150 parts of cement, 80-130 parts of filler, 1.5-3 parts of additive, 0.2-1 parts of phenolic fibre, 0.4-1 parts of defoaming agent, 1.5-3.5 parts of adhesive and 550-600 parts of water；Preparation method through the invention improves the density and compression strength of concrete, improves the pore structure of concrete, improves the real density of concrete and reduces the water penetration of concrete, improves the performances such as the impervious, freeze proof of concrete, resist chemical.
Description
Technical field
The present invention relates to technical field of concrete, and in particular to a kind of recycled fine aggregate concrete and preparation method thereof.
Background technique
Concrete is by cementitious material by the cementing integral engineered composite material of aggregate.Cementitious material is usually cement,
Aggregate is sand, stone, then is cooperated by a certain percentage with water, agitated acquisition.The preparation of existing concrete simply by by cement,
Sandstone, water, additive etc. are mixed with, but there are concrete integrally divide intensity it is lower, be easy cracking, to reduce coagulation
The bearing capacity of soil structure, shortens the working life, and becomes the hidden danger of various disaster accidents.In existing building field, building
Process, which can often produce, sees more building castoffs, and building castoff can become available material after being effectively treated, and such as build
Recycled aggregate is built to be made of concrete, brick, sandstone, the dregs etc. in building waste.Recycled fine aggregate is utilized again mixed
It is used in solidifying soil, realizing turns waste into wealth, environmentally protective.In order to which recycled fine aggregate use into concrete, is prepared one
It is this field urgent problem that kind, which has the concrete of excellent shock resistance, corrosion resistance etc.,.For this purpose, of the invention
A kind of recycled fine aggregate concrete and preparation method thereof.
Summary of the invention
In view of the above problems, the invention proposes a kind of recycled fine aggregate concrete and preparation method thereof.
In order to achieve the above purpose, the following technical solution is employed by the present invention:
A kind of recycled fine aggregate concrete, the concrete are prepared by following raw material: fine aggregate 200-300
Part, is glued 110-150 parts of cement, 80-130 parts of filler, 1.5-3 parts of additive, 0.2-1 parts of phenolic fibre, 0.4-1 parts of defoaming agent
1.5-3.5 parts of mixture and 550-600 parts of water.
Preferably, which is prepared by following raw material: 220-280 parts of fine aggregate, cement 120-140
Part, 90-120 parts of filler, 2-2.7 parts of additive, 0.4-0.8 parts of phenolic fibre, 0.6-0.8 parts of defoaming agent, 2-3 parts of adhesive with
And 565-585 parts of water.
Preferably, which is prepared by following raw material: 250 parts of fine aggregate, 130 parts of cement, filler 110
Part, 2.3 parts of additive, 0.6 part of phenolic fibre, 0.7 part of defoaming agent, 2.5 parts of adhesive and 570 parts of water.
Preferably, the fine aggregate is construction waste concrete, stone brick, glass are crushed, sieved, and obtained partial size exists
1-2.5mm recycled fine aggregate particle.
Preferably, the cement is PO42.5 grades of portland cements.
Preferably, the additive is lignosulfonates based water reducer.
Preferably, the filler is silicon powder, kaolin, and the weight ratio between the silicon powder, kaolin is 9:1-2.
Preferably, the partial size of the silicon powder is between 0.1-0.01 μm, and the kaolin partial size is between 0.15-0.3mm.
Preferably, fine aggregate, water above-mentioned recycled fine aggregate preparation method of concrete, including following preparation step: are weighed
Mud, filler, additive, phenolic fibre, defoaming agent, adhesive are put into blender, and water, low whipping speed 200- is added
Under 300r/min, the concrete is made in stirring 2-3min.
Due to using above-mentioned technical solution, the beneficial effects of the present invention are:
(1) present invention has good absorption and dispersion to portland cement by the lignosulfonates based water reducer added
Mobility and dispersion effect of the cement between components system, the combination between components system such as enhancing cement can be improved in effect
Intensity improves the pore structure of concrete, improves the real density of concrete and reduces the water penetration of concrete, to improve
The performances such as the impervious, freeze proof of concrete, resist chemical prevent cracking caused by mixed mud excessively rapid condensation；
(2) by the silicon powder of addition, silicon powder particle is tiny to be uniformly filled into the micropore of concrete the present invention, wooden
The addition of plain sulfonate based water reducer increases dispersibility of the silicon powder between components system, improves the density of concrete and resists
Compressive Strength contains a large amount of silica composition in silicon powder, this significantly improves the resistance to chemical corrosion of concrete；The present invention
There is good tridimensional network by the phenolic fibre of addition, most of soda acids are shown with excellent chemical inertness, filler
Etc. components can have good combination, filling with the three-dimensional netted skeleton structure of phenolic fibre so that concrete system have it is good
Leakproofness, corrosion-resistant, high temperature resistant and the performances such as impermeable.
(3) preparation method of the invention is simple, lower to the technique requirement of production preparation, environmentally protective convenient for preparation.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described.Based on the embodiment of the present invention, the common skill in this field
Art personnel every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Embodiment 1:
Recycled fine aggregate concrete of the invention the preparation method comprises the following steps: weighing 250 parts, PO42.5 grades silicate cements of fine aggregate
130 parts of mud, partial size are in 11 parts of the kaolin of 99 parts of silicon powder and partial size between 0.15-0.3mm, the sulfomethylated lignin between 0.1-0.01 μm
2.3 parts of hydrochlorate based water reducer, 0.6 part of phenolic fibre, 0.7 part of polyethers defoaming agent, 2.5 parts of vinyl acetate resin adhesive are thrown
Enter into blender, the water of 570 parts of addition, under low whipping speed 250r/min, the concrete is made in stirring 3min.
Embodiment 2:
Recycled fine aggregate concrete of the invention the preparation method comprises the following steps: weighing 200 parts, PO42.5 grades silicate cements of fine aggregate
110 parts of muddy water mud, partial size 10 parts of kaolin, the lignin of 90 parts of silicon powder and partial size between 0.15-0.3mm between 0.1-0.01 μm
1.5 parts of sulfonate based water reducer, 0.2 part of phenolic fibre, 0.4 part of polyethers defoaming agent, 1.5 parts of acrylic adhesives put into
In blender, it is added 550 parts of water, under low whipping speed 200r/min, the concrete is made in stirring 2min.
Embodiment 3:
Recycled fine aggregate concrete of the invention the preparation method comprises the following steps: weighing 280 parts, PO42.5 grades silicate cements of fine aggregate
12 parts of kaolin, the lignin sulfonic acid of 140 parts of mud, partial size in 108 parts of 0.1-0.01 μm of silicon powder and partial size between 0.15-0.3mm
2.7 parts of salt based water reducer, 0.8 part of phenolic fibre, 0.8 part of polyethers defoaming agent, 3 parts of modified polyurethane adhesive are put into stirring
It mixes in device, is added 585 parts of water, under low whipping speed 300r/min, the concrete is made in stirring 3min.
Comparative example 1:
Comparative example 1 and the difference of embodiment 1 are for fine aggregate to be substituted for the existing common sandstone used.
The method for preparing the concrete of comparative example 1 are as follows: weigh sandstone 250 parts, PO42.5 grades portland cements 130 part,
Diameter is in 99 parts of silicon powder, 11 parts of kaolin of the partial size between 0.15-0.3mm, lignosulfonates system diminishing between 0.1-0.01 μm
2.3 parts of agent, 0.6 part of phenolic fibre, 0.7 part of polyethers defoaming agent, 2.5 parts of vinyl acetate resin adhesive, put into blender
In, it is added 570 parts of water, under low whipping speed 250r/min, the concrete is made in stirring 3min.
Comparative example 2:
Comparative example 2 and the difference of embodiment 1 are for fine aggregate to be substituted for the existing common sandstone used, and this is not added
The filler of invention.
The method for preparing the concrete of comparative example 2 are as follows: weigh 250 parts, PO42.5 grades 130 parts of portland cements of sandstone, wood
2.3 parts of mahogany sulfonate based water reducer, 0.7 part of polyethers defoaming agent, 2.5 parts of vinyl acetate resin adhesive, put into stirring
In device, it is added 570 parts of water, under low whipping speed 250r/min, the concrete is made in stirring 3min.
Comparative example 3:
Comparative example 3 in embodiment 1 compared to being distinguished as that filler of the invention is not added.
Prepare comparative example 3 concrete method are as follows: weigh 250 parts, PO42.5 grades 130 parts of portland cements of fine aggregate,
2.3 parts of lignosulfonates based water reducer, 0.7 part of polyethers defoaming agent, 2.5 parts of vinyl acetate resin adhesive and water 570
Part, it puts into blender, the water of 570 parts of addition, under low whipping speed 250r/min, the concrete is made in stirring 3min.
The concrete sample as made from the preparation method of embodiment 1-3 and comparative example 1-3 is examined by 7d, 14d, 28d respectively
Survey the compression strength and cleavage strength of concrete, detection data statistics such as the following table 1.
Table 1:
Embodiment 1-3 is compared compared to comparative example 1 from upper table 1, can must add fine aggregate than coagulation made from addition sandstone
Soil has more good compressive property and fracture resistance.
The concrete as made from the preparation method of embodiment 1-3 and comparative example 1-3 is laid in the cold of -50 DEG C of refrigerating chamber progress
Freeze, freeze 30d, 60d, 90d respectively, whether observation surface cracks, and cracking is less to be calculated as A1, and cracking is more to be calculated as A2, and cracking is tight
Restatement is A3, does not crack and is calculated as B.The detection of compression strength and flexural tensile strength is carried out after room temperature to be restored, detection data counts such as
The following table 2.
Table 2:
In summary it can obtain, it is whole to significantly enhance concrete for the concrete being prepared by the preparation method of invention
The strength character of body also improves the performance of the freeze proof and resist chemical of concrete.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of recycled fine aggregate concrete, which is characterized in that the concrete is prepared by following raw material: fine aggregate
200-300 parts, 110-150 parts of cement, 80-130 parts of filler, 1.5-3 parts of additive, 0.2-1 parts of phenolic fibre, defoaming agent 0.4-
1 part, 1.5-3.5 parts of adhesive and 550-600 parts of water.
2. recycled fine aggregate concrete according to claim 1, which is characterized in that the concrete is by following raw material
It is prepared: 220-280 parts of fine aggregate, 120-140 parts of cement, 90-120 parts of filler, 2-2.7 parts of additive, phenolic fibre
0.4-0.8 parts, 0.6-0.8 parts of defoaming agent, 2-3 parts of adhesive and 565-585 parts of water.
3. recycled fine aggregate concrete according to claim 2, which is characterized in that the concrete is by following raw material
It is prepared: 250 parts of fine aggregate, 130 parts of cement, 110 parts of filler, 2.3 parts of additive, 0.6 part of phenolic fibre, defoaming agent 0.7
Part, 2.5 parts of adhesive and 570 parts of water.
4. recycled fine aggregate concrete according to claim 1, which is characterized in that the fine aggregate is construction waste coagulation
Soil, stone brick, glass are crushed, are sieved, recycled fine aggregate particle of the obtained partial size in 1-2.5mm.
5. recycled fine aggregate concrete according to claim 1, which is characterized in that the cement is PO42.5 grades of silicates
Cement.
6. recycled fine aggregate concrete according to claim 1, which is characterized in that the additive is lignosulfonates
Based water reducer.
7. recycled fine aggregate concrete according to claim 1, which is characterized in that the filler is silicon powder, kaolin, institute
Stating the weight ratio between silicon powder, kaolin is 9:1-2.
8. recycled fine aggregate concrete according to claim 7, which is characterized in that the partial size of the silicon powder is in 0.1-0.01
Between μm, the kaolin partial size is between 0.15-0.3mm.
9. the preparation method of -8 any recycled fine aggregate concrete according to claim 1, which is characterized in that including following
Preparation step: fine aggregate, cement, filler, additive, phenolic fibre, defoaming agent, adhesive are weighed and is put into blender, is added
Enter water, under low whipping speed 200-300r/min, the concrete is made in stirring 2-3min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910737728.5A CN110357541A (en) | 2019-08-12 | 2019-08-12 | A kind of recycled fine aggregate concrete and preparation method thereof |
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| CN201910737728.5A CN110357541A (en) | 2019-08-12 | 2019-08-12 | A kind of recycled fine aggregate concrete and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018437A (en) * | 2019-12-10 | 2020-04-17 | 郑州大学 | Ultrahigh-toughness waste brick-concrete regeneration mixture and preparation method and application thereof |
| CN115572135A (en) * | 2022-11-02 | 2023-01-06 | 盱眙狼山水泥有限公司 | Preparation method of high-strength corrosion-resistant recycled concrete |
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| CN107235684A (en) * | 2017-06-21 | 2017-10-10 | 福州大学 | A kind of recycled fine aggregate ultra-high performance concrete and its application method |
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| CN108285310A (en) * | 2018-03-08 | 2018-07-17 | 东南大学 | A kind of ultra-high performance concrete and preparation method thereof prepared using discarded concrete recycled fine aggregate |
| CN108892449A (en) * | 2018-07-16 | 2018-11-27 | 成都宏基建材股份有限公司 | A kind of recycled fine aggregate non-light tight concrete and preparation method thereof |
| CN109053080A (en) * | 2018-09-13 | 2018-12-21 | 郑州大学 | Environmentally friendly high ductility cement-base composite material of one kind and preparation method thereof |
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2019
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|---|---|---|---|---|
| JP2004323294A (en) * | 2003-04-24 | 2004-11-18 | Taiheiyo Cement Corp | Concrete |
| CN101407390A (en) * | 2008-10-28 | 2009-04-15 | 浙江大学宁波理工学院 | Porous cement concrete using regenerative concrete aggregate |
| CN107235684A (en) * | 2017-06-21 | 2017-10-10 | 福州大学 | A kind of recycled fine aggregate ultra-high performance concrete and its application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018437A (en) * | 2019-12-10 | 2020-04-17 | 郑州大学 | Ultrahigh-toughness waste brick-concrete regeneration mixture and preparation method and application thereof |
| CN111018437B (en) * | 2019-12-10 | 2022-02-08 | 郑州大学 | Ultrahigh-toughness waste brick-concrete regeneration mixture and preparation method and application thereof |
| CN115572135A (en) * | 2022-11-02 | 2023-01-06 | 盱眙狼山水泥有限公司 | Preparation method of high-strength corrosion-resistant recycled concrete |
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