CN113320007A - Preparation method, preparation device and application of colored pervious concrete - Google Patents
Preparation method, preparation device and application of colored pervious concrete Download PDFInfo
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- CN113320007A CN113320007A CN202110651682.2A CN202110651682A CN113320007A CN 113320007 A CN113320007 A CN 113320007A CN 202110651682 A CN202110651682 A CN 202110651682A CN 113320007 A CN113320007 A CN 113320007A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/142—Mixtures or their components, e.g. aggregate
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Road Paving Machines (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation method, a preparation device and application of color pervious concrete, wherein preparation of personnel, raw materials, machinery and technology is carried out before construction; pouring the raw materials into a stirrer, stirring for 12 minutes at 350 revolutions per minute, and outputting a concrete finished product; transporting to a construction site, and pouring to a construction part; paving and leveling the concrete; compacting and polishing the surface of the concrete by a troweling machine; curing the concrete; cutting a seam on the surface of the concrete by using a cutting machine; the surface of the concrete is coated with the brightening agent by adopting an airless sprayer, so that the colored pervious concrete can quickly drain water after being formed and supplement urban underground resources when raining. The permeable terrace stores water and resists drought, thereby relieving urban waterlogging, supplementing underground water resources and reducing urban heat island effect.
Description
Technical Field
The invention relates to the field of colored pervious concrete, in particular to a preparation method, a preparation device and application of colored pervious concrete.
Background
At present, the colorful pervious concrete is a porous lightweight concrete prepared by mixing broken stones, cement, a bonding material, a pigment and water, does not contain fine aggregate, and is a cellular structure formed by coating a thin layer of cement slurry on the surface of coarse aggregate to be mutually bonded to form pores which are uniformly distributed, so that the colorful pervious concrete has the characteristics of air permeability, water permeability and light weight, and is increasingly emphasized in research and development as environmental load reduction type concrete.
However, in the process of processing and transporting the colored pervious concrete, the processing and transporting mode is different from the conventional concrete, and the conventional processing and transporting mode of the concrete is adopted at present, so that the water permeability of the concrete in the use process after casting molding is influenced.
Disclosure of Invention
The invention aims to provide a preparation method, a preparation device and application of colored pervious concrete, and aims to solve the technical problem that in the prior art, the processing and transportation mode of the colored pervious concrete is different from that of the conventional concrete in the processing and transportation process, and the conventional processing and transportation mode of the concrete is adopted at present, so that the water permeability of the concrete in the use process after casting molding is influenced.
In order to achieve the above object, the present invention provides a method for preparing colored pervious concrete, comprising the steps of,
preparing personnel, raw materials, machinery and technology before construction;
pouring the raw materials into a stirrer, stirring for 12 minutes at 350 revolutions per minute, and outputting a concrete finished product;
transporting to a construction site, and pouring to a construction part;
paving and leveling the concrete;
compacting and polishing the surface of the concrete by a troweling machine;
curing the concrete;
cutting a seam on the surface of the concrete by using a cutting machine;
and (3) coating the surface of the concrete with a brightening agent by adopting an airless sprayer.
Wherein in the "preparation of personnel, raw materials, machinery and techniques before construction", the method further comprises,
preparing personnel: establishing a construction project organization mechanism, and arranging personnel configuration capable of realizing work tasks required by a construction project;
preparing materials: preparing a concrete raw material for construction, and preparing living necessities of constructors;
mechanical preparation: preparing construction machinery, a cart and a bricklayer tool, and installing hydroelectric facilities;
technical preparation: and (5) familiar with design drawings, and formulating a construction scheme according to design requirements.
Wherein, in "preparation of substance: preparing a concrete raw material for construction, and preparing living necessities of constructors, and the method also comprises the following steps,
the raw materials for pervious concrete construction comprise cement, broken stones, a binder, a pigment and water, and the living necessities of constructors comprise a material yard and a mechanical yard for accommodation, diet and construction.
Wherein in the step of pouring the raw materials into the mixer to mix for 12 minutes at 350 revolutions per minute and outputting the concrete finished product, the method further comprises,
preparing raw materials according to the mixing proportion of concrete materials;
pouring the raw materials into a stirrer to be stirred, and controlling the addition of water for 2-3 times;
and outputting the concrete finished product after stirring.
Wherein, in the step of transporting to a construction site and pouring to a construction site, the method further comprises the steps of,
transportation is generally controlled within 15 minutes, concrete stirring is kept during transportation, and horizontal transportation needs to be kept when a trolley is used.
Wherein, in the process of paving and leveling concrete,
spreading in a warehouse-dividing mode, and uniformly spreading the concrete on a working surface, wherein the loose coefficient of the concrete is 1.1.
In the step of compacting and finishing the surface of the concrete by adopting a troweling machine, the method also comprises the step of finding the flatness and the flooding degree by using a scraper after the pouring is finished;
trowelling the surface of the concrete;
and (5) compacting and polishing the surface of the concrete by using a troweling machine after initial setting.
The invention also comprises a preparation device of the colored pervious concrete, which is used for preparing the colored pervious concrete.
The invention also comprises the colored pervious concrete which is applied to the construction of colored ecological pervious terraces and national sponge cities.
According to the preparation method, the preparation device and the application of the color pervious concrete, the preparation of personnel, raw materials, machinery and technology is well carried out before construction; pouring the raw materials into a stirrer, stirring for 12 minutes at 350 revolutions per minute, and outputting a concrete finished product; transporting to a construction site, and pouring to a construction part; paving and leveling the concrete; compacting and polishing the surface of the concrete by a troweling machine; curing the concrete; cutting a seam on the surface of the concrete by using a cutting machine; the surface of the concrete is coated with the brightening agent by adopting an airless sprayer, so that the colored pervious concrete can quickly drain water after being formed and supplement urban underground resources when raining. The permeable terrace stores water and resists drought, thereby relieving urban waterlogging, supplementing underground water resources and reducing urban heat island effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the method for preparing the colored pervious concrete of the present invention.
FIG. 2 is a flow chart of the present invention for preparing personnel, raw materials, machinery and techniques prior to construction.
FIG. 3 is a flow chart of the present invention for pouring raw materials into a mixer for mixing and outputting concrete products.
FIG. 4 is a flow chart of the present invention for compacting and finishing a concrete surface using a troweling machine.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the present invention provides a method for preparing a color pervious concrete, including the following steps, S101: preparing personnel, raw materials, machinery and technology before construction;
s1011: preparing personnel: establishing a construction project organization mechanism, and arranging personnel configuration capable of realizing work tasks required by a construction project;
s1012: preparing materials: preparing a concrete raw material for construction and preparing living necessities of constructors, wherein the raw material for the construction of the pervious concrete comprises cement, broken stones, a binding material, pigment and water, and the living necessities of the constructors comprise a material yard and a mechanical yard for accommodation, diet and construction;
s1013: mechanical preparation: preparing construction machinery, a cart and a bricklayer tool, and installing hydroelectric facilities;
s1014: technical preparation: familiar with design drawings, and formulating a construction scheme according to design requirements;
in the embodiment, four major preparations of personnel, materials, construction machinery and technology are prepared before construction:
(1) preparing personnel: and (3) establishing a sound construction project organization mechanism, and strictly controlling the configuration by setting personnel according to the principle that the work tasks required by the construction project can be realized.
(2) Preparing materials: the pervious concrete is similar to common concrete, but the raw materials of the pervious concrete are less in sand, the aggregate is replaced by the gravel with certain granularity, and a certain amount of materials (bonding materials and gravel) are contained in the pervious concrete during construction. The material preparation is the preparation on site, such as the accommodation of personnel, the required water and electricity supply, and the construction of engineering material piling up sheds (the bonding material needs waterproof measures); a place for installing the stirring machine, and the like.
(3) Construction machinery, carts, bricklayer tools and the like; hydropower facilities are in place, and domestic water, electricity and construction water and electricity are used. Power utilization for construction: three-phase power, construction water: ordinary tap water is connected to the side of the stirring equipment.
(4) Technical preparation before construction: the method comprises the steps of knowing and analyzing characteristics and progress requirements of engineering projects, knowing objective conditions of construction, familiarizing with design drawings according to design requirements, reasonably arranging construction strength, and making a construction scheme to make technical preparation for smooth completion of the engineering.
S102: pouring the raw materials into a stirrer, stirring for 12 minutes at 350 revolutions per minute, and outputting a concrete finished product;
s1021: preparing raw materials according to the mixing proportion of concrete materials;
s1022: pouring the raw materials into a stirrer to be stirred, and controlling the addition of water for 2-3 times;
s1023: outputting a concrete finished product after stirring;
in this embodiment, the consistency of the cement slurry in the pervious concrete mixture is relatively large, and the quantity is small, in order to ensure that the cement slurry can be uniformly wrapped on the aggregates, a forced mixer is preferably adopted, the mixing time is longer than that of the conventional concrete, because the pervious concrete mixture is relatively dry and hard, before the pouring, the roadbed must be wetted with water firstly, the reason is that the mixing water quantity in the pervious concrete is limited, if the roadbed material absorbs part of the mixing water in the concrete, the condensation of the cement can be accelerated, the time for pavement pouring, vibrating, compacting and seaming is reduced, and the bonding strength among the aggregates can be weakened due to rapid water loss.
(1) The construction site needs special personnel to be responsible for the proportioning of the materials.
(2) The water-cement ratio is strictly controlled, namely the adding amount of water is controlled, the water is added in 2-3 times during stirring, and one-time addition is not allowed.
(3) In order to stir the materials evenly, the mechanical stirring time is properly prolonged, but the mechanical stirring time is not suitable to be too long.
S103: transporting to a construction site, wherein the transportation is generally controlled within 15 minutes, concrete stirring is kept in the transportation process, and the concrete is required to be horizontally transferred when a trolley is used and poured to a construction part;
in the present embodiment, the pervious concrete is a dry concrete material, the initial setting is fast, the transportation time of the mixture is generally controlled according to the climate conditions, the transportation is generally controlled within 15 minutes, the truck does not stay during the transportation, and the balance is required.
S104: paving and leveling the concrete, paving in a bin-divided mode, and uniformly paving the concrete on a working surface, wherein the loose paving coefficient is 1.1;
s105: compacting and polishing the surface of the concrete by a troweling machine;
s1051: after the casting is finished, leveling and flashing degree are found by a scraper;
s1052: trowelling the surface of the concrete;
s1053: and (5) compacting and polishing the surface of the concrete by using a troweling machine after initial setting.
In the embodiment, the pervious concrete belongs to dry concrete materials, the initial setting is fast, the paving must be in time, for the pavement surface of people, the large-area construction is paved by adopting a warehouse-dividing mode, the paving is leveled by using a leveling machine, the loose paving coefficient is 1.1, the mixture is uniformly paved on a working surface, the leveling degree is found by using a scraper, certain flooding degree is controlled, and finally, the leveling is carried out by using a trowel, so that the leveling can not be carried out by using clear water. The loose paving coefficient is the ratio of the material paving height higher than the actual height, and is generally 1.1-1.5 according to the dryness and humidity of the pervious concrete. As the permeable concrete has large porosity and fast water loss, when the temperature is higher than 35 ℃, the construction time should be kept away from noon, and the permeable concrete is suitable for construction in the morning and at night. After paving, waiting for initial setting, compacting and finishing by using a CRT-E836 driving type troweling machine after the initial setting, and polishing the concrete surface by the troweling machine through a rotating grinding disc, thereby realizing finishing of the concrete surface.
S106: curing the concrete;
in the embodiment, the pervious concrete has similar properties to cement concrete, water curing is carried out the next day after construction is finished, water can be sprayed for curing for at least 2 times every day in 8 hours after pouring if the weather is dry heat, and the curing time is not less than 3 days. However, it is not suitable to directly spray the concrete surface with pressurized water when spraying water, and the water should be sprayed from top to bottom.
S107: cutting a seam on the surface of the concrete by using a cutting machine;
in this embodiment, after the maintenance is accomplished, use the cutting machine that horsepower is 5000 to carry out 5 mm's joint-cutting to the concrete surface, the joint-cutting cuts along vertical direction on the horizontal plane to cut out a plurality of cutting joints of parallel arrangement, so that the concrete can carry out expend with heat and contract with cold.
S108: and (3) coating the surface of the concrete with a brightening agent by adopting an airless sprayer.
In the embodiment, the transparent brightener is coated or sprayed by an airless sprayer with the pressure of 60-300kg/cm after the surface concrete is molded and dried for about 3 days2And the durability and the aesthetic property are enhanced. Prevent the pores of the pervious concrete from being polluted and blocked after the pervious concrete is used for a long time.
A kind of colored pervious concrete, pervious concrete has different characteristics with ordinary concrete: the novel building material has the advantages of small capacity, insignificant capillary phenomenon of water, high water permeability, small cement consumption, simple construction and the like, so the superiority of the novel building material is continuously known and is gradually applied in the field of roads. The rainwater that it can increase infiltration earth's surface alleviates some urban environment problems such as the groundwater level of city sharply descends, compares with the concrete, can fast drainage when raining, and the water absorption rate is fast, supplyes urban underground resource. The permeable terrace stores water and resists drought, relieves urban waterlogging, supplements underground water resources and reduces urban heat island effect and greenhouse effect.
A preparation device of colored pervious concrete is used for preparing the colored pervious concrete, wherein mechanical equipment such as a stirring machine, a leveling machine, a troweling machine, a cutting and sewing machine and the like is adopted.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A preparation method of colored pervious concrete is used for preparing the colored pervious concrete and is characterized by comprising the following steps,
preparing personnel, raw materials, machinery and technology before construction;
pouring the raw materials into a stirrer, stirring for 12 minutes at 350 revolutions per minute, and outputting a concrete finished product;
transporting to a construction site, and pouring to a construction part;
paving and leveling the concrete;
compacting and polishing the surface of the concrete by a troweling machine;
curing the concrete;
cutting a seam on the surface of the concrete by using a cutting machine;
and (3) coating the surface of the concrete with a brightening agent by adopting an airless sprayer.
2. The method for preparing colored pervious concrete according to claim 1, wherein in the "preparation of personnel, raw materials, machinery and techniques before construction", the method further comprises,
preparing personnel: establishing a construction project organization mechanism, and arranging personnel configuration capable of realizing work tasks required by a construction project;
preparing materials: preparing a concrete raw material for construction, and preparing living necessities of constructors;
mechanical preparation: preparing construction machinery, a cart and a bricklayer tool, and installing hydroelectric facilities;
technical preparation: and (5) familiar with design drawings, and formulating a construction scheme according to design requirements.
3. The method for preparing the colored pervious concrete of claim 2, wherein the step of preparing the substance is as follows: preparing a concrete raw material for construction, and preparing living necessities of constructors, and the method also comprises the following steps,
the raw materials for pervious concrete construction comprise cement, broken stones, a binder, a pigment and water, and the living necessities of constructors comprise a material yard and a mechanical yard for accommodation, diet and construction.
4. The method of claim 1, wherein in the step of pouring the raw materials into the mixer for 12 minutes at 350 rpm and outputting the concrete product, the method further comprises,
preparing raw materials according to the mixing proportion of concrete materials;
pouring the raw materials into a stirrer to be stirred, and controlling the addition of water for 2-3 times;
and outputting the concrete finished product after stirring.
5. The method for preparing the colored pervious concrete according to claim 1, wherein in the step of transporting to a construction site and pouring to a construction site, the method further comprises,
transportation is generally controlled within 15 minutes, concrete stirring is kept during transportation, and horizontal transportation needs to be kept when a trolley is used.
6. The method for preparing the colored pervious concrete according to claim 1, wherein in the process of paving and leveling the concrete,
spreading in a warehouse-dividing mode, and uniformly spreading the concrete on a working surface, wherein the loose coefficient of the concrete is 1.1.
7. The method for preparing the colored pervious concrete according to claim 1, wherein in the step of compacting and finishing the surface of the concrete by using a troweling machine, the method further comprises,
after the casting is finished, leveling and flashing degree are found by a scraper;
trowelling the surface of the concrete;
and (5) compacting and polishing the surface of the concrete by using a troweling machine after initial setting.
8. A device for preparing colored pervious concrete, which is used for preparing the colored pervious concrete of claim 1.
9. The colored permeable concrete is characterized by being applied to colored ecological permeable terraces and national sponge city construction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110651682.2A CN113320007A (en) | 2021-06-11 | 2021-06-11 | Preparation method, preparation device and application of colored pervious concrete |
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| CN202110651682.2A CN113320007A (en) | 2021-06-11 | 2021-06-11 | Preparation method, preparation device and application of colored pervious concrete |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233916A (en) * | 2014-06-27 | 2014-12-24 | 重庆多娇保温材料有限公司 | Preparation method of color ecological permeable floor |
| CN107117893A (en) * | 2017-04-03 | 2017-09-01 | 安徽省新路建设工程集团有限责任公司 | The method of the closely knit macrovoid pervious concrete pavement construction of plate vibration |
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2021
- 2021-06-11 CN CN202110651682.2A patent/CN113320007A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233916A (en) * | 2014-06-27 | 2014-12-24 | 重庆多娇保温材料有限公司 | Preparation method of color ecological permeable floor |
| CN107117893A (en) * | 2017-04-03 | 2017-09-01 | 安徽省新路建设工程集团有限责任公司 | The method of the closely knit macrovoid pervious concrete pavement construction of plate vibration |
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