CN108117330A - Concrete prepared using discarded dry film and preparation method thereof - Google Patents
Concrete prepared using discarded dry film and preparation method thereof Download PDFInfo
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- CN108117330A CN108117330A CN201711166593.9A CN201711166593A CN108117330A CN 108117330 A CN108117330 A CN 108117330A CN 201711166593 A CN201711166593 A CN 201711166593A CN 108117330 A CN108117330 A CN 108117330A
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- Prior art keywords
- dry film
- parts
- fines
- water
- concrete
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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
- 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
- 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
- C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
-
- 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
- C04B18/141—Slags
- C04B18/144—Slags from the production of specific metals other than iron or of specific alloys, e.g. ferrochrome slags
-
- 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 present invention provides a kind of concrete prepared using discarded dry film and preparation method thereof.The concrete of the present invention includes the component of following parts by weight：5 15 parts of dry film fines, 5 15 parts of magnesium reduction slag, 10 20 parts of cement, 20 30 parts of natural sand, 20 30 parts of building stones, 10 15 parts of water and water-reducing agent 5 10；Wherein, the dry film fines is obtained by carrying out alkali process to discarded dry film, mass content≤3% of gum components in the dry film fines.The concrete of good mechanical performance is prepared by carrying out recycling to discarded dry film and magnesium reduction slag in the present invention.
Description
Technical field
The present invention relates to a kind of construction materials, and in particular to a kind of concrete prepared using discarded dry film and its preparation side
Method.
Background technology
Photoresist be it is a kind of by photosensitive resin, sensitizer, solvent etc. into the photosensitive mixing liquid be grouped into.
After illumination in exposure region photocuring reaction can quickly occur for the photosensitive resin in photoresist, so that dissolubility,
Significant change occurs for the physical properties such as affinity, after appropriate solvent processing, can remove soluble part so as to obtain
Required image.In view of photoresist has the function of to stop plating and etching etc., therefore it is widely used in circuit board industrial
In the making and transfer of circuit components, solder masks and dielectric patterns.
Du pont company develops a kind of photoresist (being generally termed as dry film) in nineteen sixty-eight, by polyester film,
The part such as photosensitive layer, polyethylene protective film forms, and is still widely used in so far in the production process of wiring board.According to incomplete
Statistics, the discarded dry film that China southeastern coastal areas generate every year are up to ten thousand tons of 30-50 or more；At present, dry film is discarded mostly to make
Burning disposal is carried out for hazardous waste.However, since part light actuating resisting corrosion dry film may contain halogen photographic composition, in addition dry film
Itself contain a large amount of organic colloid class substances, be easy to cause the hypertoxic gas such as bioxin during the burning process and generate, therefore compel
A kind of safe and environment-friendly processing method will be developed by being essential.
Meanwhile China is Yuan Mei big producers, the former magnesium of the overwhelming majority is produced using Pidgeon process at present, and this method is in every life
6-10 tons of magnesium reduction slag can be generated while producing 1 ton of crude magnesium, history accumulation volume of cargo in storage is up to ten million ton.In addition, magnesium reduction slag
Particle of the middle diameter less than 150 microns is more than 60%, and suspension is difficult to settle in air, and powder is easily formed under natural environment
Dustiness contaminates, and breathing problem can be caused when sucking human body；Particularly, magnesium reduction slag also has stronger moisture absorption, easily makes soil
Earth salinization of soil, the soil and its neighboring area for accumulating magnesium reduction slag are not used to farming substantially, so as to be caused to environment
Long-term hazards.It would therefore be highly desirable to develop the resource utilization method for above-mentioned discarded dry film and magnesium reduction slag.
The content of the invention
The present invention provides a kind of concrete prepared using discarded dry film and its process, the method achieve to discarded
The recycling of dry film and magnesium reduction slag, the mechanical performance of concrete being prepared is excellent, have significant environment, economy and
Social benefit.
The present invention provides a kind of concrete prepared using discarded dry film and magnesium reduction slag, includes the group of following parts by weight
Point：5-15 parts of dry film fines, 5-15 parts of magnesium reduction slag, 10-20 parts of cement, 20-30 parts of natural sand, 20-30 parts of building stones, water 10-
15 parts and water-reducing agent 5-10；Wherein, the dry film fines is obtained by carrying out alkali process to discarded dry film, and the dry film is thin
Mass content≤3% of gum components in material.
In the present invention, dry film is the photoresist of du pont company's production, by polyester film, photosensitive layer, is gathered
The part such as ethylene protective film forms；Discarded dry film is to utilize the dry film waste material discarded during above-mentioned dry film production wiring board；
Dry film fines is obtained by carrying out alkali process to above-mentioned discarded dry film.In the present invention, unless otherwise specified, content refers both to matter
Measure content.
The present inventor it has been investigated that, discard dry film when realizing recycling there are gum components (from dry film
Photosensitive layer, main composition is Polystyrene-Butadiene Copolymer) content is high, is difficult to the defects of scattered；By to discarded dry
Film carries out alkali process, can overcome drawbacks described above, so as to beneficial to the recycling for realizing discarded dry film.In consideration of it, so as to complete
Into the present invention.
In the present invention, in the dry film fines gum components mass content≤3%；Specifically, gum components are with poly-
Styrene-butadiene copolymer meter, the mass content of gum components is using Fourier Transform Infrared Spectrometer and cracking gas phase color
Spectrum mass spectrometer measures.Dry film fines with above-mentioned quality requirement (i.e. mass content≤3% of gum components) is conducive to
It uniformly mixes and disperses with unclassified stores, the concrete of good mechanical performance is obtained so as to easily prepared.The present invention is to forming institute
The process conditions for stating the alkali process of dry film fines do not limit strictly, as long as can obtain having the dry film of above-mentioned quality requirement thin
Material.
Further, the particle mean size of the dry film fines is more than 100 mesh, such as 110-150 mesh.It is appreciated that
It is, it can be above-mentioned so as to obtain having by carrying out alkali process, separation of solid and liquid, drying, crushing and screening to discarded dry film successively
The dry film fines of particle mean size.
In addition, the water content of the dry film fines<1%；Specifically, dry film fines can be made by the usual manners such as dry
Water content be reduced to above-mentioned suitable scope, wherein it is possible to control dry temperature as 100-125 DEG C, time 30-
120min。
In the present invention, magnesium reduction slag is using generated residue during Pidgeon process production magnesium；Pidgeon process is：To forge
Calcined dolomite is raw material, ferrosilicon is reducing agent, fluorite is catalyst, is heating and is generating magnesium vapor under vacuumized conditions, to magnesium
Steam is condensed, flux-refining production magnesium.In the present invention, the composition of magnesium reduction slag is (in terms of mass content)：CaO
50%-55%, SiO230-35%, MgO 3-5%, Fe2O34-8% and Al2O33-7%；Further, magnesium reduction slag is flat
Equal granularity is more than 100 mesh, such as 120-150 mesh.
In the present invention, the convenient source of this field may be employed in cement, natural sand, building stones, water-reducing agent；Specifically,
Cement can be the Portland cement to comply with the national standard requirements；Natural sand can be that the public affairs formed are acted on by natural conditions
The rock particles that grain size is claimed to be less than 5mm；Building stones can be that the nominal particle diameter obtained by natural rock or cobble through broken, screening is big
In the rock particles of 5mm；Water-reducing agent can be polycarboxylate water-reducer.
The concrete of the present invention, 7 days compression strength>31MPa；28 days compression strength>49MPa；The comprehensive performance of concrete
It is excellent.
The concrete of the present invention is by the use of discarded dry film and magnesium reduction slag as primary raw material, wherein discarded dry film has centainly
Plasticity and toughness, magnesium reduction slag have inorganic mineral material aggregate effect, using above two waste material as raw material preparation mix
The complex effect of structure function complementation can be formed during solidifying soil, in effective heap for solving the discarded pollutants such as dry film and magnesium reduction slag
Deposit and traditional disposal options caused by disposal of pollutants and while security risk, realize the recycling of waste material, system
It is excellent for obtained mechanical performance of concrete.
The present invention also provides the preparation methods of any of the above-described concrete, include the following steps：
1) alkali process and separation of solid and liquid are carried out to discarded dry film successively, obtains dry film filter residue and filtrate；
2) the dry film filter residue is dried, crushed and sieved successively, obtain dry film fines；
3) by 5-15 parts of the dry film fines, 5-15 parts of magnesium reduction slag, 10-20 parts of cement, 20-30 parts of natural sand, building stones
20-30 parts, 10-15 parts of water and water-reducing agent 5-10 are stirred and evenly mixed, and obtain mixture；
4) by the die-filling jolt ramming of the mixture, be protected from light maintenance, obtain the concrete.
Specifically, the aqueous slkali that concentration is 0.1-0.3mol/L may be employed and carry out the alkali process；Aqueous slkali is not made
Stringent limitation, such as can be NaOH solution etc..In addition, when carrying out the alkali process, can control the aqueous slkali with it is described
The quality proportioning of discarded dry film is (2-3)：1.It is possible to further control the temperature of the alkali process as 85-95 DEG C, the time is
30-120min.The readily available dry film fines with above-mentioned quality requirement of above-mentioned alkali pretreatment.
Especially it is possible to the filtrate that separation of solid and liquid is formed is incorporated into the aqueous slkali and carries out the alkali process, so as to
The dosage of aqueous slkali is reduced, is further reduced the cost.
The present invention does not limit the condition of the drying process strictly, as long as can make the water content of dry film fines reduce
To suitable scope, the water content of dry film fines for example can be with<1%；Specifically, the temperature that can control the drying is
100-125 DEG C, time 30-120min.
Method processing equipment of the invention is simple, cost of investment is low, can effectively reduce wiring board and magnesium metal production
Solid waste discharge in the process, so as to solve the dirt that the pollutants such as discarded dry film, magnesium reduction slag are stored up and traditional disposal options are brought
Dye discharge and security risk problem can additionally make full use of the aggregate effect of the plasticity and toughness and slag material of dry film material,
Realization turns harm into good and turns waste into wealth, the concrete excellent combination property being prepared, resource environment and remarkable in economical benefits.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the embodiment of the present invention, to this
Technical solution in inventive embodiments is clearly and completely described, it is clear that described embodiment is that a part of the invention is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of all other embodiments obtained, belong to the scope of protection of the invention.
Raw material is as follows used by various embodiments of the present invention：
Discarded dry film：By in wiring board production process discard dry film waste material, mainly by polyester film, photosensitive layer,
The part such as polyethylene protective film forms；
Magnesium reduction slag：Magnesium generated residue in the process is produced for Pidgeon process, forms and is calculated as with mass content：CaO
50%-55%, SiO230-35%, MgO 3-5%, Fe2O34-8% and Al2O33-7%, particle mean size is more than 100 mesh；
Cement：For the Portland cement to comply with the national standard requirements；
Natural sand：To act on the rock particles that the nominal particle diameter formed is less than 5mm by natural conditions；
Building stones：Nominal particle diameter to be obtained by natural rock or cobble through broken, screening is more than the rock particles of 5mm；
Water-reducing agent：For polycarboxylate water-reducer.
Embodiment 1
1st, dry film fines is prepared
Alkali process (soda boiling) carries out discarded dry film using the NaOH solution of 0.1mol/L, wherein NaOH solution is done with discarded
The quality proportioning of film is 2:1, and control the temperature of alkali process time 120min obtains alkali process liquid for 90 DEG C.
Above-mentioned alkali process liquid is filtered, aqueous dry film is obtained and disperses slag, drying is aerated to it, wherein controlling
Drying temperature is 100 DEG C, and drying time 120min obtains dry film and disperses slag.
Disperse slag to above-mentioned dry film to crush and sieve, obtain particle mean size as 120 mesh, water content<1% dry film is thin
Material.
Above-mentioned dry film fines is examined using Fourier Transform Infrared Spectrometer and pyrolysis gas chromatography mass spectrometry combined instrument
It surveys；The result shows that：The mass content of gum components (being counted using Polystyrene-Butadiene Copolymer) is 2.4% in dry film fines.
2nd, concrete is prepared
According to 15 parts of dry film fines, 15 parts of magnesium reduction slag, 10 parts of cement, 20 parts of natural sand, 20 parts of building stones, 10 parts of water, poly-
10 parts of stocks of carboxylic acid water reducer.
The addition of building stones, natural sand, magnesium reduction slag, cement, dry film fines, water and water-reducing agent is stirred successively according to said ratio
Container is mixed, is stirred until homogeneous, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, it is placed in the dry place of being protected from light and supports
Shield, obtains concrete.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Embodiment 2
1st, dry film fines is prepared
Alkali process (soda boiling) carries out discarded dry film using the NaOH solution of 0.2mol/L, wherein NaOH solution is done with discarded
The quality proportioning of film is 2:1, and control the temperature of alkali process time 60min obtains alkali process liquid for 90 DEG C.
Above-mentioned alkali process liquid is filtered, filtrate is collected, obtains the alkaline filtrate containing a small amount of colloid, be incorporated into
Reuse is carried out in NaOH solution；Meanwhile filter residue is collected, it obtains aqueous dry film and disperses slag, drying is aerated to it, wherein controlling
Drying temperature processed is 105 DEG C, and drying time 100min obtains dry film and disperses slag.
Disperse slag to above-mentioned dry film to crush and sieve, obtain particle mean size as 130 mesh, water content<1% dry film is thin
Material.
Above-mentioned dry film fines is detected using 1 method of embodiment；The result shows that：Gum components in dry film fines (with
Polystyrene-Butadiene Copolymer meter) mass content be 2.0%.
2nd, concrete is prepared
According to 5 parts of dry film fines, 5 parts of magnesium reduction slag, 10 parts of cement, 30 parts of natural sand, 30 parts of building stones, 10 parts of water, poly- carboxylic
Sour 10 parts of stocks of water-reducing agent.
The addition of building stones, natural sand, magnesium reduction slag, cement, dry film fines, water and water-reducing agent is stirred successively according to said ratio
Container is mixed, is stirred until homogeneous, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, it is placed in the dry place of being protected from light and supports
Shield, obtains concrete.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Embodiment 3
1st, dry film fines is prepared
Alkali process (soda boiling) carries out discarded dry film using the NaOH solution of 0.3mol/L, wherein NaOH solution is done with discarded
The quality proportioning of film is 3:1, and control the temperature of alkali process time 30min obtains alkali process liquid for 90 DEG C.
Above-mentioned alkali process liquid is filtered, filtrate is collected, obtains the alkaline filtrate containing a small amount of colloid, be incorporated into
Reuse is carried out in NaOH solution；Meanwhile filter residue is collected, it obtains aqueous dry film and disperses slag, drying is aerated to it, wherein controlling
Drying temperature processed is 110 DEG C, and drying time 80min obtains dry film and disperses slag.
Disperse slag to above-mentioned dry film to crush and sieve, obtain particle mean size as 110 mesh, water content<1% dry film is thin
Material.
Above-mentioned dry film fines is detected using 1 method of embodiment；The result shows that：Gum components in dry film fines (with
Polystyrene-Butadiene Copolymer meter) mass content be 2.8%.
2nd, concrete is prepared
According to 15 parts of dry film fines, 5 parts of magnesium reduction slag, 20 parts of cement, 20 parts of natural sand, 20 parts of building stones, 15 parts of water, poly- carboxylic
Sour 5 parts of stocks of water-reducing agent.
The addition of building stones, natural sand, magnesium reduction slag, cement, dry film fines, water and water-reducing agent is stirred successively according to said ratio
Container is mixed, is stirred until homogeneous, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, it is placed in the dry place of being protected from light and supports
Shield, obtains concrete.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Embodiment 4
1st, dry film fines is prepared
Alkali process (soda boiling) carries out discarded dry film using the NaOH solution of 0.2mol/L, wherein NaOH solution is done with discarded
The quality proportioning of film is 3:1, and control the temperature of alkali process time 50min obtains alkali process liquid for 90 DEG C.
Above-mentioned alkali process liquid is filtered, filtrate is collected, obtains the alkaline filtrate containing a small amount of colloid, be incorporated into
Reuse is carried out in NaOH solution；Meanwhile filter residue is collected, it obtains aqueous dry film and disperses slag, drying is aerated to it, wherein controlling
Drying temperature processed is 115 DEG C, and drying time 50min obtains dry film and disperses slag.
Disperse slag to above-mentioned dry film to crush and sieve, obtain particle mean size as 140 mesh, water content<1% dry film is thin
Material.
Above-mentioned dry film fines is detected using 1 method of embodiment；The result shows that：Gum components in dry film fines (with
Polystyrene-Butadiene Copolymer meter) mass content be 1.0%.
2nd, concrete is prepared
According to 10 parts of dry film fines, 10 parts of magnesium reduction slag, 15 parts of cement, 30 parts of natural sand, 30 parts of building stones, 10 parts of water, poly-
5 parts of stocks of carboxylic acid water reducer.
The addition of building stones, natural sand, magnesium reduction slag, cement, dry film fines, water and water-reducing agent is stirred successively according to said ratio
Container is mixed, is stirred until homogeneous, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, it is placed in the dry place of being protected from light and supports
Shield, obtains concrete.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Embodiment 5
1st, dry film fines is prepared
Alkali process (soda boiling) carries out discarded dry film using the NaOH solution of 0.1mol/L, wherein NaOH solution is done with discarded
The quality proportioning of film is 2.5:1, and control the temperature of alkali process time 85min obtains alkali process liquid for 90 DEG C.
Above-mentioned alkali process liquid is filtered, filtrate is collected, obtains the alkaline filtrate containing a small amount of colloid, be incorporated into
Reuse is carried out in NaOH solution；Meanwhile filter residue is collected, it obtains aqueous dry film and disperses slag, drying is aerated to it, wherein controlling
Drying temperature processed is 120 DEG C, and drying time 35min obtains dry film and disperses slag.
Disperse slag to above-mentioned dry film to crush and sieve, obtain particle mean size as 125 mesh, water content<1% dry film is thin
Material.
Above-mentioned dry film fines is detected using 1 method of embodiment；The result shows that：Gum components in dry film fines (with
Polystyrene-Butadiene Copolymer meter) mass content be 2.2%.
2nd, concrete is prepared
According to 10 parts of dry film fines, 15 parts of magnesium reduction slag, 15 parts of cement, 20 parts of natural sand, 25 parts of building stones, 10 parts of water, poly-
5 parts of stocks of carboxylic acid water reducer.
The addition of building stones, natural sand, magnesium reduction slag, cement, dry film fines, water and water-reducing agent is stirred successively according to said ratio
Container is mixed, is stirred until homogeneous, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, it is placed in the dry place of being protected from light and supports
Shield, obtains concrete.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Embodiment 6
1st, dry film fines is prepared
Alkali process (soda boiling) carries out discarded dry film using the NaOH solution of 0.3mol/L, wherein NaOH solution is done with discarded
The quality proportioning of film is 2.5:1, and control the temperature of alkali process time 40min obtains alkali process liquid for 90 DEG C.
Above-mentioned alkali process liquid is filtered, filtrate is collected, obtains the alkaline filtrate containing a small amount of colloid, be incorporated into
Reuse is carried out in NaOH solution；Meanwhile filter residue is collected, it obtains aqueous dry film and disperses slag, drying is aerated to it, wherein controlling
Drying temperature processed is 125 DEG C, and drying time 30min obtains dry film and disperses slag.
Disperse slag to above-mentioned dry film to crush and sieve, obtain particle mean size as 135 mesh, water content<1% dry film is thin
Material.
Above-mentioned dry film fines is detected using 1 method of embodiment；The result shows that：Gum components in dry film fines (with
Polystyrene-Butadiene Copolymer meter) mass content be 1.6%.
2nd, concrete is prepared
According to 5 parts of dry film fines, 10 parts of magnesium reduction slag, 20 parts of cement, 25 parts of natural sand, 20 parts of building stones, 15 parts of water, poly- carboxylic
Sour 5 parts of stocks of water-reducing agent.
The addition of building stones, natural sand, magnesium reduction slag, cement, dry film fines, water and water-reducing agent is stirred successively according to said ratio
Container is mixed, is stirred until homogeneous, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, it is placed in the dry place of being protected from light and supports
Shield, obtains concrete.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Reference examples 1
1st, dry film fines is prepared
Boiling is carried out to discarded dry film using water, controlling the temperature of boiling, time 120min obtains boiling for 90 DEG C
Liquid.
Above-mentioned water cooking liquid is filtered, filter residue is collected, and drying is aerated to filter residue, wherein controlling the drying temperature to be
100 DEG C, drying time 120min obtains dry film filter residue.
Above-mentioned dry film filter residue is crushed and sieved, obtains particle mean size as 60 mesh, water content<1% dry film fines.
Above-mentioned dry film fines is detected using 1 method of embodiment；The result shows that：Gum components in dry film fines (with
Polystyrene-Butadiene Copolymer meter) mass content be 14.0%.
2nd, concrete is prepared
According to 15 parts of dry film fines, 15 parts of magnesium reduction slag, 10 parts of cement, 20 parts of natural sand, 20 parts of building stones, 10 parts of water, poly-
10 parts of stocks of carboxylic acid water reducer.
The addition of building stones, natural sand, magnesium reduction slag, cement, dry film fines, water and water-reducing agent is stirred successively according to said ratio
Container is mixed, is stirred until homogeneous, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, it is placed in the dry place of being protected from light and supports
Shield, obtains concrete.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Reference examples 2
1st, dry film fines is prepared
Alkali process (soda boiling) is carried out to discarded dry film using the NaOH solution of 0.05mol/L, wherein NaOH solution is with discarding
The quality proportioning of dry film is 2.5:1, and control the temperature of alkali process time 150min obtains alkali process liquid for 70 DEG C.
Above-mentioned alkali process liquid is filtered, alkaline filtrate is obtained and aqueous dry film disperses slag；To aqueous dry film point
Scattered slag is aerated drying, wherein controlling drying temperature, for 120 DEG C, drying time 35min obtains dry film and disperses slag.
Disperse slag to above-mentioned dry film to crush and sieve, obtain particle mean size as 70 mesh, water content<1% dry film is thin
Material.
Above-mentioned dry film fines is detected using 1 method of embodiment；The result shows that：Gum components in dry film fines (with
Polystyrene-Butadiene Copolymer meter) mass content be 10.0%.
2nd, concrete is prepared
According to 10 parts of dry film fines, 15 parts of magnesium reduction slag, 15 parts of cement, 20 parts of natural sand, 25 parts of building stones, 10 parts of water, poly-
5 parts of stocks of carboxylic acid water reducer.
The addition of building stones, natural sand, magnesium reduction slag, cement, dry film fines, water and water-reducing agent is stirred successively according to said ratio
Container is mixed, is stirred until homogeneous, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, it is placed in the dry place of being protected from light and supports
Shield, obtains concrete.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Reference examples 3
The dry film fines prepared using embodiment 1 is as raw material.
According to 15 parts of dry film fines, 20 parts of cement, 30 parts of natural sand, 20 parts of building stones, 10 parts of water, 5 parts of polycarboxylate water-reducer
Stock.
Building stones, natural sand, cement, dry film fines, water and water-reducing agent are added in into stirring container successively according to said ratio, stirred
It mixes to uniform, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, the dry place's of being protected from light maintenance is placed in, obtains coagulation
Soil.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
Reference examples 4
Using the magnesium reduction slag in embodiment 1 as raw material.
According to 15 parts of magnesium reduction slag, 20 parts of cement, 30 parts of natural sand, 20 parts of building stones, 10 parts of water, 5 parts of polycarboxylate water-reducer
Stock.
Building stones, natural sand, magnesium reduction slag, cement, water and water-reducing agent are added in into stirring container successively according to said ratio, stirred
It mixes to uniform, obtains mixture；Then, by the die-filling jolt ramming of the mixture prepared, the dry place's of being protected from light maintenance is placed in, obtains coagulation
Soil.
Reference《GB/T50107-2010 detection and evaluation of concrete strength standards》In method 7 days and 28 days are mixed respectively
Solidifying soil is tested, and the results are shown in Table 1.
The performance test results of 1 each concrete of table
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of concrete prepared using discarded dry film, which is characterized in that include the component of following parts by weight：Dry film fines 5-
15 parts, 5-15 parts of magnesium reduction slag, 10-20 parts of cement, 20-30 parts of natural sand, 20-30 parts of building stones, 10-15 parts of water and water-reducing agent 5-
10；Wherein, the dry film fines is obtained by carrying out alkali process to discarded dry film, gum components in the dry film fines
Mass content≤3%.
2. concrete according to claim 1, which is characterized in that the particle mean size of the dry film fines is more than 100 mesh.
3. concrete according to claim 1 or 2, which is characterized in that the water content of the dry film fines<1%.
4. the preparation method of any concrete of claims 1 to 3, which is characterized in that include the following steps：
1) alkali process and separation of solid and liquid are carried out to discarded dry film successively, obtains dry film filter residue and filtrate；
2) the dry film filter residue is dried, crushed and sieved successively, obtain dry film fines；
3) by 5-15 parts of the dry film fines, 5-15 parts of magnesium reduction slag, 10-20 parts of cement, 20-30 parts of natural sand, building stones 20-30
Part, 10-15 parts of water and water-reducing agent 5-10 are stirred and evenly mixed, and obtain mixture；
4) by the die-filling jolt ramming of the mixture, be protected from light maintenance, obtain the concrete.
5. preparation method according to claim 4, which is characterized in that use concentration for 0.1-0.3mol/L aqueous slkali into
The row alkali process.
6. preparation method according to claim 5, which is characterized in that the aqueous slkali is NaOH solution.
7. preparation method according to claim 5, which is characterized in that when carrying out the alkali process, control the aqueous slkali
Quality proportioning with the discarded dry film is (2-3)：1.
8. preparation method according to claim 5, which is characterized in that the filtrate is incorporated into the aqueous slkali and is carried out
The alkali process.
9. according to any preparation method of claim 4 to 8, which is characterized in that the temperature for controlling the alkali process is 85-
95 DEG C, time 30-120min.
10. preparation method according to claim 4, which is characterized in that the temperature of the drying is controlled as 100-125 DEG C,
Time is 30-120min.
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