CN102162214B - Construction method of pervious cement concrete - Google Patents
Construction method of pervious cement concrete Download PDFInfo
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- CN102162214B CN102162214B CN2011100561021A CN201110056102A CN102162214B CN 102162214 B CN102162214 B CN 102162214B CN 2011100561021 A CN2011100561021 A CN 2011100561021A CN 201110056102 A CN201110056102 A CN 201110056102A CN 102162214 B CN102162214 B CN 102162214B
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- cement concrete
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- permeable 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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Abstract
The invention provides a construction method of pervious cement concrete. The pervious cement concrete comprises the following materials: cement, gravel, sand, water, a water reducing agent, stone powder or ballast and polypropylene (PP) fiber. The construction method of the pervious cement concrete comprises the following steps: stirring the materials to form a mixture with appropriate dryness-wetness degree; paving the pervious cement concrete by utilizing an asphalt concrete paver for construction and molding; and finally curing the paved and molded pervious cement concrete. The obtained pervious cement concrete is prepared from pervious concrete with sand and takes the PP fiber as a reinforcing agent, thus having the characteristics of high strength, good toughness, good water permeability and good air permeability. In the construction method of the pervious cement concrete, the asphalt concrete paver is adopted for construction without rolling compaction, thus obviously lowering the cost and saving labor hours; and the construction method has the advantages of simple process, high construction planeness, good water permeability, good air permeability and the like.
Description
[technical field]
The present invention relates to the concrete technology field, particularly a kind of permeable cement concrete and job practices.
[background technology]
At present, the face of land of modern city is many to be covered by the building construction of steel concrete and fluid-tight road surface, compares with the soil of nature; Common rigid pavement lacks respiratory, absorbs the ability of heat and infiltration rainwater, has also brought a series of environmental problem thereupon; Concrete is considered to destroy the arch-criminal of nature always; As long as but make continuous hole be able to form, just can create itself and being connected a little of natural environment, greatly the change image of going over.Cement concrete with water permeability is a kind of creationary material because have cellular loose structure for the earth environment that recovers constantly to wreck; It has the different features with ordinary concrete institute: unit weight is little, the capillarity of water is not remarkable, ventilative, water permeability is big; Cement consumption is little, construction is simple etc.; Therefore, pervious concrete receives people's attention day by day as a kind of new environment-friendly type, ecotypic pavement material; Its research and development also more and more come into one's own, and will the mankind's sustainable development be contributed.
At present modal is exactly that porous does not have the sand cement concrete, and it does not have sand, is to be cementitious material with cement; Common stone is a coarse aggregate, fully mixes with water, and the sclerosis back forms the permeable material of porous; The major defect of this kind material is that intensity is lower, because intensity and porosity are the indexs of a pair of contradiction, porosity is high more; Intensity is low more, and when porosity reaches more than 20%, intensity generally is merely 8-13MPa.
Because the permeable cement rigid pavement adopts dry rigid cement concrete to make, cement concrete inside has little shape water-permeable passage, should satisfy requirement of strength; Satisfy permeable requirement again, therefore, how to pave, roller-compaction becomes technological difficulties in the construction; If molding construction is improper, the problem that strength deficiency perhaps destroys cavernous structure will take place, make the forfeiture of permeable cement rigid pavement or weaken permeable effect; At present; The application of permeable cement rigid pavement still is in the junior stage, and is not specially adapted for the machinery of permeable cement concrete pavement construction, generally is to adopt the construction machinery of existing Portland cement concrete pavement to construct.General permeable cement concrete is that the employing concrete spreader paves, the road roller rolled-on method such as the job practices of above-mentioned porous non-fine concrete, specifically is that the each component according to certain proportioning is added concrete mixer, stirs a few minutes; Form even and the suitable compound of humidity; Then prepared mixture is paved on the ready road bed, adopt cement concrete spreader to carry out construction operation, comprise with instrument the pervious concrete compound is shakeout; Make the closely knit smooth step of said compound with the low frequency oscillator plate in surface oscillation; And the step of roller-compaction, preventing water evaporates with the film covering curing then, palpus water seasoning after 7 days is accomplished in construction; After maintenance was treated surperficial bone dry after 7 days, utilize pavement cutting machine to carry out slot and joint filling construction according to designing requirement.
[summary of the invention]
The technical problem that the present invention will solve; Be to provide a kind of permeable cement Concrete Construction method; Permeable cement concrete to special formulation of the present invention is constructed, and mainly adopts paver to pave, and need not to roll; Have characteristics such as technology is simple, the construction planeness is high, water permeability and good permeability, labour intensity is low, construction efficiency is high, cost is low, and quality control on construction is easy.
The present invention solves the problems of the technologies described above through adopting following technical scheme: a kind of permeable cement Concrete Construction method; Wherein, Said permeable cement concrete is made up of cement, stone, sand, water, water reducing agent, stone flour or rock ballast, polypropylene fibre; Every cubic metre of permeable cement concrete cement consumption is at 300kg-400kg; Evenly be mixed and made into according to following part by weight: cement: stone: sand: water: water reducing agent: stone flour or rock ballast: the part by weight of polypropylene fibre is 1: 3.5～5.5: 0.5～0.9: 0.2～0.35: 0.01～0.02: 0.15～0.25: 0.002～0.003, and said permeable cement Concrete Construction method comprises the steps:
Step 100: the concrete each component of said permeable cement is added concrete mixer according to said proportioning, behind the stirring certain hour, form evenly and the suitable compound of humidity;
Step 200: utilize bituminous concrete paver that requirement or the designing requirement according to engineering discipline of the compound of step 100 preparation evenly paved on the ground layer of having fixed or roadbed or sub-surface with certain width and thickness, carry out permeable cement concrete speading construction molding;
Step 300: on the road surface after the moulding that paves, cover fiber woollen blanket, gunnysack, straw bag or film carries out maintenance and the maintenance of sprinkling water is no less than 7 days.
Further; In the said step 200; In the paving operation process of said bituminous concrete paver, open the hammer ram mechanism and the vibrating mechanism of the screed of bituminous concrete paver, accomplish the moulding that paves under the power effect of shaking the hitting of hammer ram rammer pressure, screed deadweight and vibrating mechanism of screed.
Further, in the said step 200, the speed controlling that paves is at 0.5-1.0m/min, and the power of shaking of hitting that makes the permeable cement concrete can access screed deadweight and vibrating mechanism fully acts on, and reaches the compactness that needs.
Further, said permeable cement Concrete Construction method also comprises step 400 after step 300: maintenance utilized pavement cutting machine to carry out the construction sequence of slot and joint filling according to designing requirement after at least 7 days.
A kind of permeable cement Concrete Construction method that the present invention realized has following advantage: said permeable cement concrete adopts to be had the pervious concrete of sand and is reinforcing agent with the polypropylene fibre; Thereby have characteristics of intensity height, good toughness, water permeability and good permeability; Said permeable cement Concrete Construction method is constructed through adopting bituminous concrete paver; Need not to roll, have characteristics such as technology is simple, the construction planeness is high, water permeability and good permeability, labour intensity is low, construction efficiency is high, quality control on construction is easy, roll because need not; Can significantly reduce cost, save man-hour.The road that adopts permeable cement concrete of the present invention and job practices to lay, not only resistance to compression, flexural tensile strength are good, and ventilative drainability is good, when concentrating rainfall, can alleviate the burden of urban sewerage and drainage facility, prevents river inundation and water pollution; Rainwater is permeated the ground rapidly, and reduction underground water keeps soil moisture; Prevent surface gathered water, night is not reflective, increases road surface safety and current comfortableness; Regulate the temperature and humidity of urban space, improve the city thermal cycle, alleviate heat island effect; Pavement noise when big void content can reduce vehicle ', the traffic environment of Creating Comfort; Urban pollutant (like dust) can be adsorbed in a large amount of spaces, reduces dust pollution; Be easy to safeguard that the space can damaged, difficultly not stopped up.
[specific embodiment]
The present invention relates to a kind of permeable cement concrete; Said permeable cement concrete is made up of cement, stone, sand, water, water reducing agent, stone flour (slag), polypropylene fibre; Every cubic metre of permeable cement concrete cement consumption is at 300kg-400kg; Sand coarse aggregate ratio evenly is mixed and made into according to following part by weight: cement: stone: sand: water: water reducing agent at 10%-20%: stone flour (slag): the part by weight of polypropylene fibre is 1: 3.5～5.5: 0.5～0.9: 0.2～0.35: 0.01～0.02: 0.15～0.25: 0.002～0.003.The each component of said ratio is joined mixer, after mixing, process concrete, construction then paves.
The invention still further relates to said permeable cement Concrete Construction method, may further comprise the steps:
Step 100, the concrete each component of said permeable cement is added concrete mixer according to certain proportioning, stir certain hour after, form evenly and the suitable compound of humidity;
Step 200, utilize bituminous concrete paver that requirement or the designing requirement according to engineering discipline of the compound of step 100 preparation evenly paved on the ground layer of having fixed or roadbed or sub-surface with certain width and thickness, carry out permeable cement concrete speading construction molding;
Step 300, on the road surface after the moulding that paves, cover fiber woollen blanket, gunnysack, straw bag or film carries out maintenance and the maintenance of sprinkling water is no less than 7 days;
Step 400, maintenance utilized pavement cutting machine to carry out the construction sequence of slot and joint filling according to designing requirement after at least 7 days.
In the said step 200; In the paving operation process of bituminous concrete paver; Open the hammer ram mechanism and the vibrating mechanism of the screed of bituminous concrete paver; Hammer ram at screed rams pressure, screed is conducted oneself with dignity and hitting of vibrating mechanism accomplished the moulding that paves under the power effect of shaking, and the speed controlling that paves is at 0.5-1.0 (m/min).
The permeable cement concrete material that the present invention realized has intensity height, good toughness, water permeability and good permeability, and job practices of the present invention adopts the bituminous concrete paver moulding that paves, and need not to roll.Job practices of the present invention has characteristics such as technology is simple, the construction planeness is high, labour intensity is low, construction efficiency is high, quality control on construction is easy; Help promoting, be applicable to the permeable cement concrete construction of parking lot, square, park, football place and light load road.Adopt the permeable cement concrete and the corresponding construction method of the present invention's preparation; Its ground compressive strength for surface contact can meet or exceed 20MPa, flexural tensile strength be 2.5MPa above, continuously porosity be 10～20%, coefficient of permeability >=1.5mm/s, can satisfy the needed intensity in permeable cement concrete place, porosity and coefficient of permeability requirement continuously fully.
Below table one classify the concrete component proportioning of each embodiment as, table two is for adopting described proportioning of table one and the made concrete performance test data of permeable cement of job practices of the present invention.Permeable cement concrete crushing strength fcu is by recording with 150 * 150 * 150mm cube reference block of test specimen with the maintenance of condition compacted under, and flexural tensile strength is recorded by 150 * 150 * 550mm test block.Method of testing is carried out according to " ordinary concrete mechanical property experimental technique " (GB 50081-2002).
The concrete component proportioning of each embodiment of table one and Comparative Examples
The performance parameter of each embodiment of table two and Comparative Examples
Referring to table one and table two, the performance indications of the permeable cement concrete of being processed by the described proportioning of table one after construction meet and considerably beyond the concrete index request of permeable cement of " permeable cement rigid pavement tecnical regulations " CJJ/T 135-2009 regulation." permeable cement rigid pavement tecnical regulations " CJJ/T135-2009 regulation, when permeable cement concrete crushing strength >=20.0MPa, flexural tensile strength should >=2.5MPa, porosity should >=10% continuously, coefficient of permeability should >=0.5mm/s.
Claims (4)
1. permeable cement Concrete Construction method; It is characterized in that: said permeable cement concrete is made up of cement, stone, sand, water, water reducing agent, stone flour or rock ballast, polypropylene fibre; Every cubic metre of concrete cement consumption of permeable cement is at 300kg-400kg; Evenly be mixed and made into according to following part by weight: cement: stone: sand: water: water reducing agent: stone flour or rock ballast: the part by weight of polypropylene fibre is 1: 3.5～5.5: 0.5～0.9: 0.2～0.35: 0.01～0.02: 0.15～0.25: 0.002～0.003, and said permeable cement Concrete Construction method comprises the steps:
Step 100: the concrete each component of said permeable cement is added concrete mixer according to said proportioning, behind the stirring certain hour, form evenly and the suitable compound of humidity;
Step 200: utilize bituminous concrete paver that requirement or the designing requirement according to engineering discipline of the compound of step 100 preparation evenly paved on the ground layer of having fixed or roadbed or sub-surface with certain width and thickness, carry out permeable cement concrete speading construction molding;
Step 300: on the road surface after the moulding that paves, cover fiber woollen blanket, gunnysack, straw bag or film carries out maintenance and the maintenance of sprinkling water is no less than 7 days.
2. a kind of permeable cement Concrete Construction method according to claim 1; It is characterized in that: in the said step 200; In the paving operation process of said bituminous concrete paver; Open the hammer ram mechanism and the vibrating mechanism of the screed of bituminous concrete paver, accomplish the moulding that paves under the power effect of shaking the hitting of hammer ram rammer pressure, screed deadweight and vibrating mechanism of screed.
3. a kind of permeable cement Concrete Construction method according to claim 2, it is characterized in that: in the said step 200, the speed controlling that paves is at 0.5-1.0m/min.
4. a kind of permeable cement Concrete Construction method according to claim 1 and 2; It is characterized in that: said permeable cement Concrete Construction method also comprises step 400 after step 300: maintenance utilized pavement cutting machine to carry out the construction sequence of slot and joint filling according to designing requirement after at least 7 days.
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| CN2011100561021A CN102162214B (en) | 2011-03-09 | 2011-03-09 | Construction method of pervious cement concrete |
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| CN2011100561021A CN102162214B (en) | 2011-03-09 | 2011-03-09 | Construction method of pervious cement concrete |
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| CN102162214B true CN102162214B (en) | 2012-07-25 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204648A (en) * | 2012-01-12 | 2013-07-17 | 北京春觉晓科技有限公司 | High-strength permeable fiber concrete and preparation method thereof |
| 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 |
| CN104402339B (en) * | 2014-11-20 | 2016-04-20 | 天元建设集团有限公司 | The constructional method of pervious concrete |
| CN106277998A (en) * | 2015-05-19 | 2017-01-04 | 湖南三恒建设园林工程有限公司 | A kind of permeable concrete and the construction method of concrete road surface thereof |
| CN105152596A (en) * | 2015-08-07 | 2015-12-16 | 济南泉建市政工程检测有限公司 | Pervious concrete and construction method |
| CN105271967B (en) * | 2015-11-24 | 2017-10-31 | 上海市普陀区社区绿化管理所 | Double useless pervious concretes of a kind of cavernous body and preparation method thereof |
| US11884591B2 (en) * | 2016-08-26 | 2024-01-30 | The Boeing Company | Permeable pavement and cured carbon fiber composition and a related method |
| CN106555371B (en) * | 2016-11-18 | 2019-02-22 | 李艳荣 | Garden large area pervious concrete road construction technique |
| IT201600131833A1 (en) * | 2016-12-28 | 2018-06-28 | Farina Ezio S R L | Draining cement conglomerate |
| CN108191315B (en) * | 2018-01-25 | 2020-09-08 | 江苏省建筑工程集团有限公司 | Concrete prepared from beach sand |
| CN110937862B (en) * | 2019-09-06 | 2022-03-25 | 中国路桥工程有限责任公司 | Pavement material based on three-dimensional reconstruction model |
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Owner name: FUJIAN LONGCHENG CONSTRUCTION GROUP CO., LTD. Free format text: FORMER OWNER: FUJIAN ENGINEERING COLLEGE Effective date: 20140902 |
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Effective date of registration: 20140902 Address after: 363100, No. 123, Renmin East Road, Shek pin Town, Fujian, Longhai Patentee after: Fujian Longcheng Construction Group Co., Ltd. Address before: Street Town area of Fuzhou new campus of the university campus road Minhou County of Fuzhou City, Fujian province 350000 Patentee before: Fujian University of Technology |