CN106145830A - A kind of pervious concrete and construction technology thereof - Google Patents

A kind of pervious concrete and construction technology thereof Download PDF

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Publication number
CN106145830A
CN106145830A CN201610645002.5A CN201610645002A CN106145830A CN 106145830 A CN106145830 A CN 106145830A CN 201610645002 A CN201610645002 A CN 201610645002A CN 106145830 A CN106145830 A CN 106145830A
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Prior art keywords
concrete
pervious concrete
cement
sand
density
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CN201610645002.5A
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CN106145830B (en
Inventor
焦楚杰
江涌波
赖俊
张国强
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Guangzhou Fourth Construction Co ltd
Guangzhou University
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Guangzhou Fourth Construction Co ltd
Guangzhou University
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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
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • 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
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Road Paving Structures (AREA)

Abstract

The invention discloses a kind of pervious concrete and construction technology thereof, using stone, cement, sand, silica flour, water, water reducer as the aggregate of pervious concrete, construction technology is: prepare before construction to weigh that the transport of raw material raw material stirring paves, the flat surface layer cleaning seam that shakes processes construction is complete；Using above scheme, the pervious concrete average relative density of the present invention is 2169Kg/m3, comprcssive strength is all higher than 35MPa, and concrete road surface coefficient of permeability is all higher than 1mm/s, and the slump reaches more than 120mm, can meet pumping requirements when needing；Simultaneously because use that particle diameter is big, the aggregate of applied range control silicon rate, make its cost relatively low, this construction technology is applicable to the constructions such as permeable concrete road surface, square, parking lot, the permeable of urban pavement can be increased while meeting structural requirement, regulation urban micro-climate, keeps ecological balance.

Description

A kind of pervious concrete and construction technology thereof
Technical field
The present invention relates to pavement construction material field, particularly to a kind of pervious concrete and construction technology thereof.
Background technology
Along with socioeconomic prosperity, urban construction and development is swift and violent, and various house, the pavement constructions carried out by concrete make Obtaining ground surface environment gradually to harden, thus atmospheric evaporation is affected, air humidity in causing city reduces, and temperature raises, and is formed " tropical island effect ", this " tropical island effect " affects the orthobiosis of people.Hardened ground not only affects atmospheric evaporation, is also prevented from Rainwater directly penetrates into underground, causes completely hydrops on rainy day that people are gone on a journey inconvenience, has increased the weight of municipal drainage simultaneously and set The burden executed, and a large amount of loss of rainwater cause level of ground water to reduce, vegetation growth is affected, and increases the weight of the arid in city, scarce Water problems.Therefore people begin to use pervious concrete to carry out pavement construction so that rainwater can normal osmosis to beneath, alleviate The situation that rainwater runs off in a large number.
Pervious concrete can alleviate tropical island effect, and be conducive to improving waterborne in soil under penetrating thus beneficially vegetation Surviving and grow, the level of ground water keeping city is steady.The pervious concrete that begins one's study acts the eighties in last century in developed country, and It is applied to square, footpath, shopping mall, parking lot etc., plays good result to regulating the climate, keeping ecological balance.90 Age plays China and begins one's study pervious concrete engineering, is mainly used in road surface (including colored road surface), but this kind of concrete There is big space and cause comprcssive strength the most relatively low in inside, the 10 of pervious concrete～the comprcssive strength of 25MPa less than China The minimum 30MPa that building material industry standard concrete road surface specifies；And owing to the sinking of cement mortar can cause pervious concrete Water permeable ability is substantially reduced；The aggregate size adding and being used of adhesive or emulsion agent is less simultaneously causes high expensive.
In current published application for patent, the big a certain single performance of multipair pervious concrete is studied.2016 5 Chinese invention patent CN201110263629.1 disclosed in the moon 2 discloses a kind of pervious concrete additive, improves The intensity of water coagulation soil, but additive incorporation component is more, and making step is various, and manufacturing process bothers；On October 29th, 2008 Disclosed Chinese invention patent CN200810050155.0 discloses a kind of permeable concrete and pavement construction method, wherein wraps Containing organic material, organic material can make pervious concrete intensity be greatly improved, but organic material price is higher so that coagulation The manufacturing cost of soil improves；And this kind of pervious concrete slump is essentially 0, it is impossible to meet pumping requirements.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of pervious concrete and construction technology thereof, solves in prior art Concrete admixture mix component more, making step is various, manufacturing process trouble and the slump be essentially 0, high cost Problem.
In order to solve above-mentioned technical problem, the technical scheme is that a kind of pervious concrete, including following weight portion Component: stone 1000-1410 part, cement 400-609 part, sand 40-52 part, silica flour 25-81 part, water 100-162 part, diminishing Agent 4-15 part.
With improvement, including the component of following weight portion: stone 1200-1410 part, cement 423-609 part, sand 45-52 Part, silica flour 32-81 part, water 119-162 part, water reducer 4-12 part.
With improvement, including the component of following weight portion: 1410 parts of stone, cement 608.64 parts, sand 52 parts, silica flour 32.03 parts, 160.17 parts of water, water reducer 4.16 parts.
Further, the particle diameter of stone is 5-15mm, apparent density 2700Kg/m3, bulk density 1410Kg/m3；Cement is P.O42.5R Portland cement, density is 3100Kg/m3；Sand is fluvial sand, and modulus of fineness is 2.6-2.8, and density is 2600Kg/m3；The purity of silica flour is not less than 98%, and density is 2700Kg/m3；Water reducer is polycarboxylic acid water reducing agent.
The construction technology of a kind of pervious concrete, comprises the following steps:
1) construction before prepare: basic unit is inspected for acceptance, check result meet the requirements after formwork erection, to structure sheaf after formwork erection Make cleaning to process, simultaneously must interface processing；
2) raw material is weighed: each component weighing in concrete；
3) raw material stirring: sand, silica flour, water reducer are mixed into admixture；According to admixture, cement, the feeding intake of rubble The raw material prepared is put in blender and stirs by order, first stirs 30min, more load weighted level is divided into 2-3 time Adding in blender and be stirred, the time of stirring is 1.5-2min every time, finally gives concrete；
4) transport: by concrete after blender discharging, transport is to making place；
5) pave, put down and shake: concrete is uniformly paved on the grass-roots work face in making place, use floating rule to sight and pave Flatness, coefficient of loose laying is 1:1, flat uses plate vibrator vibration when shaking；Pave and form surface layer after flat shaking；
6) surface layer cleaning: surface layer cleans, and brushing protective agent in 48h；
7) seam processes: carry out expansion joint (E.J.) and contracting seam processes；
8) construct complete, carry out in time wet support.
Further, step 4) to step 5) deadline be 1h.
Use technique scheme, owing to using stone, cement, sand, silica flour, water, water reducer as pervious concrete Aggregate so that the pervious concrete average relative density of the present invention is 2169Kg/m3, for about the 90% of normal concrete； Comprcssive strength is all higher than 35MPa, reaches the minimum 30MPa that China's building material industry standard concrete road surface specifies, and meets " mixed Xtah Crude Clay structure engineering construction quality acceptance specification " requirement of GB50204-2002；Concrete road surface coefficient of permeability is all higher than 1mm/ S, meets the requirement on concrete permeable road surface；The slump reaches more than 120mm, can meet pumping requirements when needing；Simultaneously by In using that particle diameter is big, the aggregate of applied range control silicon rate so that it is relatively low (500 yuan/m of cost3Within), the therefore present invention Construction technology be applicable to the construction such as permeable concrete road surface, square, parking lot, can increase while meeting structural requirement Urban pavement permeable, regulates urban micro-climate, keeps ecological balance.
Accompanying drawing explanation
Fig. 1 is a kind of pervious concrete of the present invention and the process chart of construction technology thereof.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.At this it should be noted that for The explanation of these embodiments is adapted to assist in and understands the present invention, but is not intended that limitation of the invention.Additionally, it is disclosed below As long as each embodiment of the present invention in involved technical characteristic do not constitute conflict each other and just can be mutually combined.
Embodiment 1
One pervious concrete of the present invention, including the stone of the component of following weight portion: 1410kg, the sand of 52kg, The cement of 608.64kg, the silica flour of 32.03kg, the water of 160.17kg, the water reducer of 4.16kg, wherein cobble-stone diameter 5-15mm, Apparent density 2700Kg/m3, bulk density 1410Kg/m3；Cement is P.O42.5R Portland cement, density 3100Kg/ m3；Sand is fluvial sand, modulus of fineness 2.6-2.8, density 2600Kg/m3；Silica flour purity is not less than 98%, density 2700Kg/ m3；Water reducer is polycarboxylic acid water reducing agent.
As it is shown in figure 1, the construction technology of this kind of pervious concrete is:
1) construction before prepare: basic unit is inspected for acceptance, check result meet the requirements after formwork erection, it is ensured that the thickness of basic unit Degree, perpendicularity, drainage grade etc. meet design requirement；Concrete is made after formwork erection cleaning process, the coagulation after process Soil structure layer surface should coarse, cleaning, without hydrops, and keep certain moisture state, while must carry out interface processing；
2) raw material is weighed: each component weighing in concrete；
3) raw material stirring: sand, silica flour, water reducer are mixed into admixture；According to admixture, cement, rubble this feed intake The raw material prepared is put in blender and stirs by order, first stirs 30min, more load weighted level is divided into 2-3 time Adding in blender and be stirred, the time of stirring is 1.5-2min every time, finally gives concrete；
4) transport: by concrete after blender discharging, transport is to making place；
5) pave, put down and shake: concrete is uniformly paved on the grass-roots work face in making place, use floating rule to sight and pave Flatness, coefficient of loose laying is 1:1, drainage grade have design require road surface should by design requirements construct, different-grain diameter aggregate Use twice one-time formed method of cloth；Put down and when shaking, use plate vibrator vibration；Transport to paving, putting down the institute completed shaken Take time as 1h；
6) surface layer cleaning: surface layer cleans, and brushing protective agent in 48h；
7) seam processes: carry out expansion joint (E.J.) and contracting seam processes；
8) construct complete, carry out in time wet support.
In above-mentioned construction technology, the rainy day should not construct；When outdoor daily mean temperature is continuously less than 5 degrees Celsius, permeable Concrete pavement construction should be performed by winter construction regulation；When outdoor daily mean temperature is more than 30-35 degree Celsius, permeable coagulation Dirt road surface construction should be performed by hot weather construction regulation.
Obtaining pervious concrete in embodiment 1 and be applied to the surface layer of 1 cubic metre, the water-cement ratio obtaining concrete is 0.25, silicon rate 0.05, porosity is 10%, density 2267kg/m3, slump 156mm, comprcssive strength 42.12MPa, permeability rate 3.20mm/s。
Embodiment 2
One pervious concrete of the present invention, including the stone of the component of following weight portion: 1410kg, the sand of 52kg, The cement of 488.07kg, the silica flour of 60.32kg, the water of 148.07kg, the water reducer of 10.97kg, wherein cobble-stone diameter 5-15mm, Apparent density 2700Kg/m3, bulk density 1410Kg/m3；Cement is P.O42.5R Portland cement, density 3100Kg/ m3；Sand is fluvial sand, modulus of fineness 2.6-2.8, density 2600Kg/m3；Silica flour purity is not less than 98%, density 2700Kg/ m3；Water reducer is polycarboxylic acid water reducing agent.
The construction technology of this kind of pervious concrete is:
1) construction before prepare: basic unit is inspected for acceptance, check result meet the requirements after formwork erection, it is ensured that the thickness of basic unit Degree, perpendicularity, drainage grade etc. meet design requirement；Concrete is made after formwork erection cleaning process, the coagulation after process Soil structure layer surface should coarse, cleaning, without hydrops, and keep certain moisture state, while must carry out interface processing；
2) raw material is weighed: each component weighing in concrete；
3) raw material stirring: sand, silica flour, water reducer are mixed into admixture；According to admixture, cement, rubble this feed intake The raw material prepared is put in blender and stirs by order, first stirs 30min, more load weighted level is divided into 2-3 time Adding in blender and be stirred, the time of stirring is 1.5-2min every time, finally gives concrete；
4) transport: by concrete after blender discharging, transport is to making place；
5) pave, put down and shake: concrete is uniformly paved on the grass-roots work face in making place, use floating rule to sight and pave Flatness, coefficient of loose laying is 1:1, drainage grade have design require road surface should by design requirements construct, different-grain diameter aggregate Use twice one-time formed method of cloth；Put down and when shaking, use plate vibrator vibration；Transport to paving, putting down the institute completed shaken Take time as 1h；
6) surface layer cleaning: surface layer cleans, and brushing protective agent in 48h；
7) seam processes: carry out expansion joint (E.J.) and contracting seam processes；
8) construct complete, carry out in time wet support.
In above-mentioned construction technology, the rainy day should not construct；When outdoor daily mean temperature is continuously less than 5 degrees Celsius, permeable Concrete pavement construction should be performed by winter construction regulation；When outdoor daily mean temperature is more than 30-35 degree Celsius, permeable coagulation Dirt road surface construction should be performed by hot weather construction regulation.
Obtaining pervious concrete in embodiment 2 and be applied to the surface layer of 1 cubic metre, the water-cement ratio of the concrete obtained is 0.27, silicon rate 0.11, porosity is 15%, density 2169kg/m3, slump 130mm, comprcssive strength 36.42MPa, permeability rate 2.40mm/s
Embodiment 3
One pervious concrete of the present invention, including the stone of the component of following weight portion: 1410kg, the sand of 52kg, The cement of 497.07kg, the silica flour of 60.32kg, the water of 144.49kg, the water reducer of 11.56kg, wherein cobble-stone diameter 5-15mm, Apparent density 2700Kg/m3, bulk density 1410Kg/m3；Cement is P.O42.5R Portland cement, density 3100Kg/ m3；Sand is fluvial sand, modulus of fineness 2.6-2.8, density 2600Kg/m3；Silica flour purity is not less than 98%, density 2700Kg/ m3；Water reducer is polycarboxylic acid water reducing agent.
The construction technology of this kind of pervious concrete is:
1) construction before prepare: basic unit is inspected for acceptance, check result meet the requirements after formwork erection, it is ensured that the thickness of basic unit Degree, perpendicularity, drainage grade etc. meet design requirement；Concrete is made after formwork erection cleaning process, the coagulation after process Soil structure layer surface should coarse, cleaning, without hydrops, and keep certain moisture state, while must carry out interface processing；
2) raw material is weighed: each component weighing in concrete；
3) raw material stirring: sand, silica flour, water reducer are mixed into admixture；According to admixture, cement, rubble this feed intake The raw material prepared is put in blender and stirs by order, first stirs 30min, more load weighted level is divided into 2-3 time Adding in blender and be stirred, the time of stirring is 1.5-2min every time, finally gives concrete；
4) transport: by concrete after blender discharging, transport is to making place；
5) pave, put down and shake: concrete is uniformly paved on the grass-roots work face in making place, use floating rule to sight and pave Flatness, coefficient of loose laying is 1:1, drainage grade have design require road surface should by design requirements construct, different-grain diameter aggregate Use twice one-time formed method of cloth；Put down and when shaking, use plate vibrator vibration；Transport to paving, putting down the institute completed shaken Take time as 1h；
6) surface layer cleaning: surface layer cleans, and brushing protective agent in 48h；
7) seam processes: carry out expansion joint (E.J.) and contracting seam processes；
8) construct complete, carry out in time wet support.
In above-mentioned construction technology, the rainy day should not construct；When outdoor daily mean temperature is continuously less than 5 degrees Celsius, permeable Concrete pavement construction should be performed by winter construction regulation；When outdoor daily mean temperature is more than 30-35 degree Celsius, permeable coagulation Dirt road surface construction should be performed by hot weather construction regulation.
Obtaining pervious concrete in embodiment 3 and be applied to the surface layer of 1 cubic metre, the water-cement ratio of the concrete obtained is 0.25, silicon rate 0.14, porosity is 15%, density 2196kg/m3, slump 121mm, comprcssive strength 39.54MPa, permeability rate 1.44mm/s.
Embodiment 4
One pervious concrete of the present invention, including the stone of the component of following weight portion: 1410kg, the sand of 52kg, The cement of 446.71kg, the silica flour of 72.72kg, the water of 161.03kg, the water reducer of 10.39kg, wherein cobble-stone diameter 5-15mm, Apparent density 2700Kg/m3, bulk density 1410Kg/m3；Cement is P.O42.5R Portland cement, density 3100Kg/ m3；Sand is fluvial sand, modulus of fineness 2.6-2.8, density 2600Kg/m3；Silica flour purity is not less than 98%, density 2700Kg/ m3；Water reducer is polycarboxylic acid water reducing agent.
The construction technology of this kind of pervious concrete is:
1) construction before prepare: basic unit is inspected for acceptance, check result meet the requirements after formwork erection, it is ensured that the thickness of basic unit Degree, perpendicularity, drainage grade etc. meet design requirement；Concrete is made after formwork erection cleaning process, the coagulation after process Soil structure layer surface should coarse, cleaning, without hydrops, and keep certain moisture state, while must carry out interface processing；
2) raw material is weighed: each component weighing in concrete；
3) raw material stirring: sand, silica flour, water reducer are mixed into admixture；According to admixture, cement, rubble this feed intake The raw material prepared is put in blender and stirs by order, first stirs 30min, more load weighted level is divided into 2-3 time Adding in blender and be stirred, the time of stirring is 1.5-2min every time, finally gives concrete；
4) transport: by concrete after blender discharging, transport is to making place；
5) pave, put down and shake: concrete is uniformly paved on the grass-roots work face in making place, use floating rule to sight and pave Flatness, coefficient of loose laying is 1:1, drainage grade have design require road surface should by design requirements construct, different-grain diameter aggregate Use twice one-time formed method of cloth；Put down and when shaking, use plate vibrator vibration；Transport to paving, putting down the institute completed shaken Take time as 1h；
6) surface layer cleaning: surface layer cleans, and brushing protective agent in 48h；
7) seam processes: carry out expansion joint (E.J.) and contracting seam processes；
8) construct complete, carry out in time wet support.
In above-mentioned construction technology, the rainy day should not construct；When outdoor daily mean temperature is continuously less than 5 degrees Celsius, permeable Concrete pavement construction should be performed by winter construction regulation；When outdoor daily mean temperature is more than 30-35 degree Celsius, permeable coagulation Dirt road surface construction should be performed by hot weather construction regulation.
Obtaining pervious concrete in embodiment 4 and be applied to the surface layer of 1 cubic metre, the water-cement ratio of the concrete obtained is 0.31, silicon rate 0.14, porosity is 15%, density 2153kg/m3, slump 125mm, comprcssive strength 39.83MPa, permeability rate 1.20mm/s。
Embodiment 5
One pervious concrete of the present invention, including the stone of the component of following weight portion: 1410kg, the sand of 52kg, The cement of 423.89kg, the silica flour of 52.39kg, the water of 119.07kg, the water reducer of 7.14kg, wherein cobble-stone diameter 5-15mm, Apparent density 2700Kg/m3, bulk density 1410Kg/m3；Cement is P.O42.5R Portland cement, density 3100Kg/ m3；Sand is fluvial sand, modulus of fineness 2.6-2.8, density 2600Kg/m3；Silica flour purity is not less than 98%, density 2700Kg/ m3；Water reducer is polycarboxylic acid water reducing agent.
The construction technology of this kind of pervious concrete is:
1) construction before prepare: basic unit is inspected for acceptance, check result meet the requirements after formwork erection, it is ensured that the thickness of basic unit Degree, perpendicularity, drainage grade etc. meet design requirement；Concrete is made after formwork erection cleaning process, the coagulation after process Soil structure layer surface should coarse, cleaning, without hydrops, and keep certain moisture state, while must carry out interface processing；
2) raw material is weighed: each component weighing in concrete；
3) raw material stirring: sand, silica flour, water reducer are mixed into admixture；According to admixture, cement, rubble this feed intake The raw material prepared is put in blender and stirs by order, first stirs 30min, more load weighted level is divided into 2-3 time Adding in blender and be stirred, the time of stirring is 1.5-2min every time, finally gives concrete；
4) transport: by concrete after blender discharging, transport is to making place；
5) pave, put down and shake: concrete is uniformly paved on the grass-roots work face in making place, use floating rule to sight and pave Flatness, coefficient of loose laying is 1:1, drainage grade have design require road surface should by design requirements construct, different-grain diameter aggregate Use twice one-time formed method of cloth；Put down and when shaking, use plate vibrator vibration；Transport to paving, putting down the institute completed shaken Take time as 1h；
6) surface layer cleaning: surface layer cleans, and brushing protective agent in 48h；
7) seam processes: carry out expansion joint (E.J.) and contracting seam processes；
8) construct complete, carry out in time wet support.
In above-mentioned construction technology, the rainy day should not construct；When outdoor daily mean temperature is continuously less than 5 degrees Celsius, permeable Concrete pavement construction should be performed by winter construction regulation；When outdoor daily mean temperature is more than 30-35 degree Celsius, permeable coagulation Dirt road surface construction should be performed by hot weather construction regulation.
Obtaining pervious concrete in embodiment 5 and be applied to the surface layer of 1 cubic metre, the water-cement ratio of the concrete obtained is 0.25, silicon rate 0.11, porosity is 20%, density 2064kg/m3, slump 132mm, comprcssive strength 35.10MPa, permeability rate 4.80mm/s。
From in the data obtained by embodiment 1 to embodiment 5, the pervious concrete average relative density of the present invention is 2169Kg/m3, for about the 90% of normal concrete；Comprcssive strength is all higher than 35MPa, reaches China's building material industry standard coagulation The minimum 30MPa that soil surface specifies, and meet " concrete structure engineering construction quality accident specification " GB50204-2002's Requirement；Concrete road surface coefficient of permeability is all higher than 1mm/s, meets the requirement on concrete permeable road surface；The slump reach 120mm with On, pumping requirements can be met when needing；Simultaneously because use that particle diameter is big, the aggregate of applied range control silicon rate so that it is Cost is relatively low, and therefore the construction technology of the present invention is applicable to the constructions such as permeable concrete road surface, square, parking lot, is meeting The permeable of urban pavement can be increased while structural requirement, regulate urban micro-climate, keep ecological balance.
Above in association with accompanying drawing, embodiments of the present invention are explained in detail, but the invention is not restricted to described enforcement Mode.For a person skilled in the art, in the case of without departing from the principle of the invention and spirit, to these embodiments Carry out multiple change, revise, replace and modification, still fall within protection scope of the present invention.

Claims (6)

1. a pervious concrete, it is characterised in that: include the component of following weight portion: stone 1000-1410 part, cement 400- 609 parts, sand 40-52 part, silica flour 25-81 part, water 100-162 part, water reducer 4-15 part.
A kind of pervious concrete the most according to claim 1, it is characterised in that: include the component of following weight portion: described Stone 1200-1410 part, described cement 423-609 part, described sand 45-52 part, described silica flour 32-81 part, described water 119- 162 parts, described water reducer 4-12 part.
A kind of pervious concrete the most according to claim 2, it is characterised in that: include the component of following weight portion: described 1410 parts of stone, described cement 608.64 parts, described sand 52 parts, described silica flour 32.03 parts, 160.17 parts of described water, described Water reducer 4.16 parts.
A kind of pervious concrete the most according to claim 3, it is characterised in that: the particle diameter of described stone is 5-15mm, table See density 2700Kg/m3, bulk density 1410Kg/m3；Described cement is P.O42.5R Portland cement, and density is 3100Kg/m3；Described sand is fluvial sand, and modulus of fineness is 2.6-2.8, and density is 2600Kg/m3；The purity of described silica flour is not Less than 98%, density is 2700Kg/m3；Described water reducer is polycarboxylic acid water reducing agent.
5. according to the construction technology of a kind of pervious concrete described in any one of claim 1-4, it is characterised in that: include following Step:
1) prepare before construction: basic unit is inspected for acceptance, check result meet the requirements after formwork erection, after formwork erection, structure sheaf is made clear Clean process, simultaneously must interface processing；
2) raw material is weighed: each component weighing in concrete；
3) raw material stirring: sand, silica flour, water reducer are mixed into admixture；According to admixture, cement, the feeding sequence of rubble The raw material prepared is put in blender and stirs, first stir 30min, more load weighted level is divided into 2-3 addition Being stirred in blender, the time of stirring is 1.5-2min every time, finally gives concrete；
4) transport: by concrete after blender discharging, transport is to making place；
5) pave, flat shake: concrete is uniformly paved on the grass-roots work face in making place, use floating rule to sight pave flat Whole degree, coefficient of loose laying is 1:1, puts down and uses plate vibrator vibration when shaking；Pave and form surface layer after flat shaking；
6) surface layer cleaning: surface layer cleans, and brushing protective agent in 48h；
7) seam processes: carry out expansion joint (E.J.) and contracting seam processes；
8) construct complete, carry out in time wet support.
The construction technology of a kind of pervious concrete the most according to claim 5, it is characterised in that: step 4) to step 5) Deadline is 1h.
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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
CN107935511A (en) * 2017-12-14 2018-04-20 钢城集团凉山瑞海实业有限公司 High-titanium slag pervious concrete and preparation method thereof
CN108191341A (en) * 2018-02-09 2018-06-22 珠海市昂科装饰工程有限公司岳阳分公司 A kind of pervious concrete and preparation method thereof
CN108383418A (en) * 2018-04-04 2018-08-10 哈尔滨工业大学 A kind of water-permeable cement concrete and its preparation method using inorganic powder reinforcing agent suitable for severe cold area
CN109551608A (en) * 2018-12-27 2019-04-02 江苏诚意工程技术研究院有限公司 A kind of pervious concrete test block production method
CN110359332A (en) * 2019-07-26 2019-10-22 重庆建工住宅建设有限公司 A kind of construction method of pervious concrete pavement
CN110666971A (en) * 2019-10-22 2020-01-10 滁州市富邦商品混凝土有限公司 Mixing equipment and method for quantitative proportioning of colored concrete
CN111996869A (en) * 2020-07-21 2020-11-27 湖南砼艺市政工程建设有限公司 Construction process of artificial grass court structure of ecological water-permeable concrete foundation structure
CN112411297A (en) * 2020-12-01 2021-02-26 济南黄河路桥建设集团有限公司 Construction method of permeable cement pavement
CN112411297B (en) * 2020-12-01 2021-07-20 济南黄河路桥建设集团有限公司 Construction method of permeable cement pavement
CN113957762A (en) * 2021-11-08 2022-01-21 湖南交通国际经济工程合作有限公司 Construction method of water-permeable cement concrete pavement
CN114620982A (en) * 2022-03-11 2022-06-14 广州大学 High-permeability pervious concrete and preparation method thereof

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