CN111041926A - Construction method of drainage concrete pavement - Google Patents
Construction method of drainage concrete pavement Download PDFInfo
- Publication number
- CN111041926A CN111041926A CN201911150611.3A CN201911150611A CN111041926A CN 111041926 A CN111041926 A CN 111041926A CN 201911150611 A CN201911150611 A CN 201911150611A CN 111041926 A CN111041926 A CN 111041926A
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- China
- Prior art keywords
- base layer
- drainage
- pavement
- concrete pavement
- concrete
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
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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
- 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
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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
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
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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
-
- 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
- E01C7/145—Sliding coverings, underlayers or intermediate layers ; Isolating or separating intermediate layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions, by inlays
Abstract
The invention discloses a construction method of a drainage concrete pavement, which is characterized in that a cushion layer with good drainage is required under a surface layer in order to ensure that a pavement structure layer has enough integral strength. The base layer is compacted by plain soil, then a gravel base layer and a thick sand base layer required by design requirements are laid, and then a colorful permeable layer is laid, wherein the permeable concrete is composed of a special cementing material, gravel, water and cement in proportion, and the prepared pavement can allow rainwater to flow into the underground and effectively supplement underground water; and can effectively eliminate the harm of oil compounds on the ground and the like to the environmental pollution, has good durability and aesthetic property, and is worthy of popularization.
Description
Technical Field
The invention belongs to the technical field of road construction, and particularly relates to a construction method of a drainage concrete pavement.
Background
The color pervious concrete is also called porous concrete and also called drainage concrete. According to the urban road pavement defect detection method, countries such as Europe and America aim at the road pavement defect of the original urban road, rainwater can flow into the ground, and underground water is effectively supplemented; and can effectively eliminate the harm of oil compounds on the ground and the like to the environmental pollution.
Disclosure of Invention
In order to solve the problems, the invention discloses a construction method of a drainage concrete pavement, which has important significance for protecting the nature, maintaining the ecological balance, relieving the urban heat island effect, facilitating the works such as urban rainwater management, water pollution prevention and control and the like.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a construction method of a drainage concrete pavement comprises the following steps:
(1) erecting a mold on the roadside;
(2) compacting the bottommost base layer by using plain soil, and paving a gravel base layer and a thick sand base layer to compact;
(3) preparing raw materials of pervious concrete, firstly stirring solid materials and stones for 30-40 seconds to preliminarily mix the solid materials and the stones, then adding specified amount of water for 2-3 times, and continuing stirring for 15-20 minutes;
(4) spreading the stirred raw materials above a thick sand base layer, wherein the loose paving coefficient is 1.1, and compacting and leveling the pavement by using a roller;
(5) maintaining;
(6) after the surface concrete is formed and dried, the curing layer is sprayed,
(7) and cutting expansion joints and caulking on the road surface.
As a modification of the invention, the time from the end of stirring the raw materials in the step (4) to spreading is not more than 20 minutes.
As a modification of the invention, in step (2) the substrate thickness exceeds 10 cm, and in step (4) a flat vibrator is used for vibrating and flattening compaction.
As an improvement of the invention, the curing in the step (5) is carried out by spraying water for curing one day after pouring, wherein the curing time is not less than two times per day, and the wet curing time is not less than seven days.
As an improvement of the invention, in the expansion joint in the step (7), a through joint is arranged at 5m, the width of the joint is 3-5mm, and the joint is embedded by using a flexible substance.
As an improvement of the invention, the pervious concrete comprises the following raw materials in percentage by weight: 115 parts of water, 400 parts of cement, 1600 parts of stones, 3 parts of water-permeable cementing materials, 6 parts of toner and 0.25-0.3 part of protective agents.
The invention has the beneficial effects that:
the construction method of the drainage concrete pavement has the advantages of good drainage effect, capability of preventing rainwater accumulation in rainy days, strong pavement durability, good aesthetic property, capability of protecting the natural environment, maintaining ecological balance, relieving urban heat island effect, contribution to the work of urban rainwater management, water pollution prevention and the like, and suitability for popularization.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.
As shown in the figure, in order to ensure that the pavement structure layer has enough integral strength, the construction method of the drainage concrete pavement needs a cushion layer with better drainage property under the surface layer. The base layer of the invention is compacted by plain soil, then the broken stone base layer and the thick sand base layer required by design requirements are laid, then the colorful permeable layer is laid, and in addition, the drainage structure adopts the on-site drainage design.
Before construction, three preparations such as organization, material, technology and the like are prepared. And a certain amount of materials (cementing materials and cement need waterproof measures) meeting the construction progress are prepared. The mixer is not too far, and the pervious concrete is dry concrete, so the initial setting is fast and the transportation time is guaranteed to be as short as possible.
And on the basis of sufficient preparation work, personnel and equipment enter the field for construction.
Erecting a mold: the invention can use the constructed brick road-building tartar as a mould or a vertical wood mould.
Preparing the raw materials
The pervious concrete is composed of a cementing material special for the pervious concrete, broken stones, water and cement in proportion.
Stirring: the pervious concrete can not be stirred manually, but is stirred by a common concrete stirring machine, the materials are put into a stirrer according to the specified proportion of the materials and the feeding sequence during stirring, the solid materials and the broken stones are stirred for about 30 seconds, then the solid materials and the broken stones are preliminarily mixed, and the specified amount of water is added for 2-3 times and is continuously stirred for about 15-20 minutes. The mechanical stirring time can be properly prolonged according to the stirring uniformity.
The invention needs to strictly control the water-cement ratio, namely, the water is added for 2 to 3 times by controlling the adding amount of the water, and the water is not allowed to be added at one time. In order to stir the materials evenly, the mechanical stirring time can be properly prolonged. In addition, during transportation, the pervious concrete belongs to a dry concrete material, the initial setting is fast, the transportation is generally controlled within 20 minutes, the pervious concrete does not need to stay in the transportation process, and the dump truck needs to be stable.
Paving, pouring and forming: the pervious concrete belongs to dry concrete materials, the initial setting is fast, and the paving must be in time. For sidewalk pavements and squares, large-area construction is carried out by adopting a blocking and separating mode, and the loose paving coefficient is 1.1. Uniformly spreading the mixture on a working surface, compacting and leveling by using a roller, wherein the surface cannot have clear water. Base layers over 10 cm thick are flattened by vibration using a flat plate shaker.
And (5) maintenance: the pervious concrete has similar properties to cement concrete, so after paving is finished, after the elevation flatness is tested to meet the requirements, a plastic film is covered immediately to keep moisture. Watering and curing are carried out one day after pouring, curing is carried out eight hours after high temperature, the time of wet curing is not less than two times per day, and the time of wet curing is not less than seven days.
Coating a curing layer (sealant) in a surface layer sealing process: after the surface concrete is formed and dried, the sealant is sprayed, so that the durability and the attractiveness are enhanced, and the phenomenon that the gaps of the pervious concrete are polluted to block the gaps due to overlong time is prevented.
The pervious concrete still belongs to one kind of concrete, and must be equipped with expansion joint, and its expansion joint must be equipped with and must be identical with the cutting seam of structural layer concrete from top to bottom, 5 meters set up one and pass through the seam, the seam width is 3-5mm, use flexible material caulking.
The drainage concrete pavement can allow rainwater to flow into the underground, and effectively replenish underground water; and can effectively eliminate the harm of oil compounds on the ground and the like to the environmental pollution, has good durability and aesthetic property, and is worthy of popularization.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (6)
1. A construction method of a drainage concrete pavement is characterized in that: the method comprises the following steps:
(1) erecting a mold on the roadside;
(2) compacting the bottommost base layer by using plain soil, and paving a gravel base layer and a thick sand base layer to compact;
(3) preparing raw materials of pervious concrete, firstly stirring solid materials and stones for 30-40 seconds to preliminarily mix the solid materials and the stones, then adding specified amount of water for 2-3 times, and continuing stirring for 15-20 minutes;
(4) spreading the stirred raw materials above a thick sand base layer, wherein the loose paving coefficient is 1.1, and compacting and leveling the pavement by using a roller;
(5) maintaining;
(6) after the surface concrete is formed and dried, the curing layer is sprayed,
(7) and cutting expansion joints and caulking on the road surface.
2. A method of constructing a drainage concrete pavement as claimed in claim 1, wherein: and (4) the time from the stirring end of the raw materials to the spreading of the raw materials in the step (4) is not more than 20 minutes.
3. A method of constructing a drainage concrete pavement as claimed in claim 1, wherein: and (3) in the step (2), the thickness of the base layer exceeds 10 centimeters, and in the step (4), a flat plate vibrator is used for vibrating and flattening compaction.
4. A method of constructing a drainage concrete pavement as claimed in claim 1, wherein: and (5) the maintenance in the step (5) is to start watering maintenance one day after pouring, the maintenance is not less than twice every day, and the wet maintenance time is not less than seven days.
5. A method of constructing a drainage concrete pavement as claimed in claim 1, wherein: and (5) arranging a through seam at the expansion joint in the step (7) for 5m, wherein the seam width is 3-5mm, and caulking by using a flexible substance after cutting.
6. A method of constructing a drainage concrete pavement as claimed in claim 1, wherein: the pervious concrete comprises the following raw materials in percentage by weight: 115 parts of water, 400 parts of cement, 1600 parts of stones, 3 parts of water-permeable cementing materials, 6 parts of toner and 0.25-0.3 part of protective agents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911150611.3A CN111041926A (en) | 2019-11-21 | 2019-11-21 | Construction method of drainage concrete pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911150611.3A CN111041926A (en) | 2019-11-21 | 2019-11-21 | Construction method of drainage concrete pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111041926A true CN111041926A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911150611.3A Pending CN111041926A (en) | 2019-11-21 | 2019-11-21 | Construction method of drainage concrete pavement |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193062A (en) * | 2016-08-19 | 2016-12-07 | 西北大学 | Loess high roadbed and construction method thereof in ditch engineering are filled out in a kind of mountain of moving |
| CN106677003A (en) * | 2016-11-29 | 2017-05-17 | 苏州基业生态园林股份有限公司 | Pervious concrete structure and preparation method thereof |
| CN207277119U (en) * | 2017-09-29 | 2018-04-27 | 中国葛洲坝集团第五工程有限公司 | A kind of colorful water permeable concrete pavement structure |
| CN207958908U (en) * | 2017-12-28 | 2018-10-12 | 上海市园林设计研究总院有限公司 | A kind of permeable cement concrete road structure |
| CN110144790A (en) * | 2019-05-05 | 2019-08-20 | 武汉开思新材料有限公司 | A kind of construction method of water permeable concrete |
-
2019
- 2019-11-21 CN CN201911150611.3A patent/CN111041926A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193062A (en) * | 2016-08-19 | 2016-12-07 | 西北大学 | Loess high roadbed and construction method thereof in ditch engineering are filled out in a kind of mountain of moving |
| CN106677003A (en) * | 2016-11-29 | 2017-05-17 | 苏州基业生态园林股份有限公司 | Pervious concrete structure and preparation method thereof |
| CN207277119U (en) * | 2017-09-29 | 2018-04-27 | 中国葛洲坝集团第五工程有限公司 | A kind of colorful water permeable concrete pavement structure |
| CN207958908U (en) * | 2017-12-28 | 2018-10-12 | 上海市园林设计研究总院有限公司 | A kind of permeable cement concrete road structure |
| CN110144790A (en) * | 2019-05-05 | 2019-08-20 | 武汉开思新材料有限公司 | A kind of construction method of water permeable concrete |
Non-Patent Citations (1)
| Title |
|---|
| 蒋贤龙等: "透水混凝土的施工技术及应用探讨", 《商品混凝土》 * |
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| PB01 | Publication | ||
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Application publication date: 20200421 |