CN202787016U - Novel water seepage concrete member - Google Patents
Novel water seepage concrete member Download PDFInfo
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- CN202787016U CN202787016U CN2012200801133U CN201220080113U CN202787016U CN 202787016 U CN202787016 U CN 202787016U CN 2012200801133 U CN2012200801133 U CN 2012200801133U CN 201220080113 U CN201220080113 U CN 201220080113U CN 202787016 U CN202787016 U CN 202787016U
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- concrete member
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- creepage
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- water
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Abstract
The utility model relates to a novel water seepage concrete member applied to highways, fast roads, roads, footways, plazas and the like. The technical scheme of the application is that the water seepage concrete member consists of a foundation base layer, a sand penetrating layer, a macadam base layer, a water seepage concrete base layer and a water seepage concrete surface layer from the bottom up. The technical scheme of the application is realized by reducing used cement contents while maintaining enough strength of cement, reducing the surface porosity, increasing the number of tiny inner holes, increasing finenesses and strengths of surface particles, adopting optimal sizes of coarse and fine aggregates and decreasing corresponding quantity of the number of the particles in unit volume, and the raw materials of the water seepage concrete member are rich in sources and low in prices. Rainwater and surface water flow into ground through a percolation layer of the water seepage concrete member, so that the natural environment can be protected, the ground water can be protected, slipping can be prevented, the diffuse reflection caused by humidity of road surface can be prevented, and the overflowing of water channels of cities can be prevented.
Description
Technical field
The creepage concrete member can be used for speedway, through street, road, sidewalk, the rigid pavement of public square etc. and other buildings that need to seep water.
Background technology
In recent years, climate variability in all parts of the country, heavy rain is continuous sometimes, and urban sewerage and drainage system has little time draining, causes a large amount of ponding of urban pavement, and the city proper has become the ocean.For head it off, we have developed a kind of novel creepage concrete member, have solved the ponding difficult problem on general concrete road surface.Rainwater and surface water are by under the permeable formation inflow surface of creepage concrete member.But the advantage of this creepage concrete member is the conservation of nature environment, and protection underground water prevents from skidding, and prevents because the moisture-induced diffuse reflection on road surface prevents that the city water channel from overflowing.
The utility model content
The utility model application technical problem to be solved is: a kind of for speedway, and through street, road, sidewalk, the creepage concrete member of public square etc.
The application solves the problems of the technologies described above the technical scheme that adopts: by foundation layer, the saturating layer of sand, rubble basal layer, creepage concrete basal layer, creepage concrete surface course, order from down to up forms a kind of novel creepage concrete member.Keep simultaneously enough intensity by reducing the cement consumption that uses, by reducing surface porosity factor, increase the quantity of small internal holes, increase fineness and the intensity of surface particles, adopt the optimum size of coarse-fine aggregate and reduce that the respective amount of amounts of particles realizes in the unit volume, and the raw material of creepage concrete member source is abundant, low price.
Compared with prior art, the application's advantage is: rainwater and surface water are by under the permeable formation inflow surface of creepage concrete member.But the advantage of this creepage concrete member is the conservation of nature environment, and protection underground water prevents from skidding, and prevents because the moisture-induced diffuse reflection on road surface prevents that the city water channel from overflowing.
Description of drawings
Fig. 1 creepage concrete member cross-sectional view;
Fig. 2 creepage concrete member construction flow chart;
Fig. 3 maximum particle diameter is the aggregate screening schematic diagram that is used for the basal layer creepage concrete of 40mm;
Fig. 4 maximum particle diameter is the aggregate screening schematic diagram of the creepage concrete that is used for surface course of 20mm;
The cross sectional representation that Fig. 5 Common Concrete Pavement and creepage concrete member are compared.
The specific embodiment
Roadbed in compacting paves transmission coefficient greater than 10 * 10
-4The layer of sand of cm/s and transmission coefficient are greater than 10 * 10
-2The macadam of cm/s; Then build the basal layer of creepage concrete member in the above, the basal layer of creepage concrete member adopts concrete, and cement mixing content is 300～500kg/m
3, water/binder ratio is 0.25～0.35; Last surface course of on basal layer, building the creepage concrete member, the surface course of creepage concrete member adopts modified concrete, and cement mixing content is 300～500kg/m
3, water/binder ratio is 0.25～0.35, mixes polymer with control intensity and durability, this polymer can adopt emulsion acrylic resin, mulseal, styrene butadiene rubber latex etc.The consumption of the polymer that uses is in 20% scope of cement weight, for economy can preferably be used mulseal; Use about 1.4kg/m
3The amplified mediums such as polypropylene fibre, polyethylene fibre, carbon fiber or iron fiber in order to the flexural strength of enhanced surface layers.If consider to carry the needed time, adopt cement retarder.After finishing, the surface course concreting of creepage concrete member adopt covered with plastic film to carry out maintenance, curing time at least 48 hours, then brush a kind of solution in the above, this solution is that a kind of polymer and the water in emulsion type acrylic acid tree vinegar, epoxy resin, urine institute, mulseal and the latex mixes.
The basal layer concrete of creepage concrete member, the maximum particle diameter of its coarse aggregate is 40mm, particle percent of pass with the 50mm sieve is 100%, particle percent of pass with the 40mm sieve is 95～100%, particle percent of pass with 25mm sieve is 75～95%, is 15～55% with the particle percent of pass of 10mm sieve, is 0～20% with the particle percent of pass that sieves for No. 4, particle percent of pass with No. 10 sieves is 0～10%, is 0～5% with the particle percent of pass that sieves for No. 40.
The surface course concrete of creepage concrete member, the maximum particle diameter of its coarse aggregate is 20mm, particle percent of pass with the 25mm sieve is 100%, particle percent of pass with the 19mm sieve is 95～100%, particle percent of pass with the 10mm sieve is 20～60%, particle percent of pass with No. 4 sieves is 0～20%, is 0～10% with the particle percent of pass of No. 10 sieves, is 0～5% with the particle percent of pass that sieves for No. 40.
The consumption of cement and water/binder ratio be after compacting, reach porosity be 8～18% and transmission coefficient greater than 10 * 10
-2Cm/s determines.The consumption of coarse-fine aggregate is determined rear according to following formula calculating at cement consumption and water/binder ratio:
The proportion of the consumption of coarse-fine aggregate={ 850 1 [weight of water+(using the proportion of the consumption/cement of cement)] } * use coarse-fine aggregate
Here 850 is volumes of removing 15% hole for 1 cubic metre of volume of creepage concrete of pavement of road.
In order to increase the flexural strength of surface course, adopt a kind of in polypropylene fibre, polyethylene fibre, carbon fiber or the iron fiber etc., the consumption of this additive is 1.4kg/m
3
The yellow ground permeable formation can prevent that soil from mixing with the top basal layer, can also purify waste water.In order to spread the top load and within a period of time, to store the water of fixed amount.At the yellow ground permeable layer rubble basal layer that paves, the transmission coefficient of this rubble basal layer is greater than 10 * 10
-2Cm/s, and after paving, should reach maximum density.Its compressive strength of creepage concrete that is used for pavement of road should be greater than 26MPa, and flexural strength should be greater than 4MPa.
Creepage concrete basal layer and surface course cement factor can be adjusted, and scope is 300～500kg/m
3Consider the quality of coarse-fine aggregate, design strength, after the factors such as transmission coefficient, water/binder ratio is defined as 0.25～0.35, and porosity is 8～18%, and the seepage rate coefficient is 10 * 10
-2Cm/s.
Creepage concrete is transported to the scene by dump truck, paved by bituminous concrete paver, and by the series tubular type road roller, rubber tyred roller etc. rolls.Seepage material concrete fully compacting makes its density surpass the regulation density of the test specimen that is used for strength test.The standard of compacting is according to the coarse-fine aggregate that uses, on-the-spot condition, and therefore the decisions such as weight of the equipment of use, could be determined before laying.For the thick rigid pavement of 15cm, 8 tons of tandem rollers need roll for 8～12 times or 12 tons of rubber tyred rollers to need roll for 4 times be suitable.
For the bond strength of the creepage concrete that improves pavement of road, used the emulsion type polymer, epoxy resin for example, acrylic resin, pitch, latex etc.This polymer should have weatherproof strong durability.The consumption of polymer is 10～40% of cement weight.Consider transportation, pave that the consumption of the cement retarder that the factors such as the time of compacting are used should be less than 2% of the cement weight that uses.
The surface course concrete is carried out lid by vinyl or thermal covering, and sclerosis surpasses one day, and paves for adsorption by polymer after overburden is removed.The aperture of creepage concrete has filled up polymer, and concrete intensity is filled up polymer and is reinforced owing to the hole, thereby can prevent from because moisture is got involved strength decreased and produce corroding.The polymer that is used for the adsorption effect can be emulsion type acrylic resin, epoxy resin, urine institute, mulseal, a kind of in the materials such as latex.Admix strong durability and the simple emulsion type acrylic resin of usage and water with waterproof, and the ratio of resin and water is 1: 5 to 1: 10, then mixture paved above secondary so that absorption enters in the creepage concrete fully.
After paving, on creepage concrete piece table surface layer, cut transverse contraction joint with concrete cutting machine every 4～8m spacing, every 20～100m a settlement joint is set, stitches with the vertical contracting of concrete cutting machine cutting on creepage concrete piece table surface layer every 2～5m spacing.
The concrete of creepage concrete member must be done the detection of compressive strength, flexural strength, porosity, density, compactness, transmission coefficient.
The porosity of creepage concrete is to calculate according to the theoretical unit volume weight of the absolute closely knit bulk density of the wet creepage concrete ratio with the effective unit volume weight of creepage concrete, and unit volume is measured the unit volume in the preparation method of test specimen of employing compressive strength determination.Absolute closely knit bulk density refers to the weight of each cubic meter of concrete when compacting does not exist cavity and air, and its unit is kg/m
3
Therefore, porosity can be calculated according to following formula:
The compactness of porosity=100-(bulk density of creepage concrete/absolute closely knit bulk density) * 100 creepage concretes records the density of on-the-spot creepage concrete according to on-the-spot coring test, calculates by following formula:
Compactness=(density of concrete density/test specimen that core obtains is got at the scene) * 100
The density of creepage concrete is calculated with paraffin, because paraffin has a large amount of pores.
Density=A/{D-E-[(D-A)/F]
Wherein A is the weight of test specimen in atmosphere, and D is the weight of the test specimen that is covered with in the atmosphere, and E is the weight of the test specimen that is covered with in water, and F is the proportion of paraffin.
Transmission coefficient adopts tester to adopt at the scene the water test method to measure, and calculates according to following formula:
K
P＝(L×a)/[A(t
2-t
1)]loge(h
1/h
2)
Here L is the ground surface material height, and a is the cross sectional area of container, and A is the infiltration cross sectional area, t
2And t
1The duration of infiltration, h
1Horizontal plane when being the test beginning, and h
2It is horizontal plane after test finishes.
Fig. 5 represents the cross sectional representation that Common Concrete Pavement and creepage concrete member are compared.In this drawing, arrow represents the flow direction of water.Common Concrete Pavement comprises the foundation of compacting, bed course and basal layer, and the gutter of bituminous concrete or cement concrete pavement surface and a side, by this gutter, rainwater flows out to the river course, in Wastewater Treatment Plant or the river.The creepage concrete member comprises the foundation of compacting, the yellow ground permeable layer, and the rubble permeable layer is as the creepage concrete layer of basal layer with as the creepage concrete thin layer of surface course.If water infiltration water coagulation soil layer, water will pass the creepage concrete surface course, then flows into the creepage concrete layer as basal layer, the rubble basal layer of infiltration and the yellow ground layer of infiltration, finally flows to earth roadbedly, and small part water can be evaporated in the air.
Claims (4)
1. a novel creepage concrete member is characterized in that comprising foundation layer, sand thoroughly layer, rubble basal layer, creepage concrete basal layer, creepage concrete surface course, and order from down to up forms a kind of novel creepage concrete member.
2. novel creepage concrete member according to claim 1, it is characterized in that: the roadbed in compacting paves transmission coefficient greater than 10 * 10
-4The layer of sand of cm/s and transmission coefficient are greater than 10 * 10
-2The macadam of cm/s; Then build the basal layer of creepage concrete member in the above, the basal layer of creepage concrete member adopts concrete; Last surface course of building the creepage concrete member on basal layer, the surface course of creepage concrete member adopts concrete.
3. novel creepage concrete member according to claim 1, it is characterized in that: the basal layer concrete of creepage concrete member, the maximum particle diameter of its coarse aggregate is 40mm, particle percent of pass with the 50mm sieve is 100%, particle percent of pass with the 40mm sieve is 95～100%, particle percent of pass with the 25mm sieve is 75～95%, particle percent of pass with the 10mm sieve is 15～55%, particle percent of pass with No. 4 sieves is 0～20%, particle percent of pass with No. 10 sieves is 0～10%, is 0～5% with the particle percent of pass that sieves for No. 40.
4. novel creepage concrete member according to claim 1, it is characterized in that: the surface course concrete of creepage concrete member, the maximum particle diameter of its coarse aggregate is 20mm, particle percent of pass with the 25mm sieve is 100%, particle percent of pass with 19mm sieve is 95～100%, is 20～60% with the particle percent of pass of 10mm sieve, is 0～20% with the particle percent of pass that sieves for No. 4, particle percent of pass with No. 10 sieves is 0～10%, is 0～5% with the particle percent of pass that sieves for No. 40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200801133U CN202787016U (en) | 2012-03-06 | 2012-03-06 | Novel water seepage concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200801133U CN202787016U (en) | 2012-03-06 | 2012-03-06 | Novel water seepage concrete member |
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| Publication Number | Publication Date |
|---|---|
| CN202787016U true CN202787016U (en) | 2013-03-13 |
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|---|---|---|---|
| CN2012200801133U Expired - Lifetime CN202787016U (en) | 2012-03-06 | 2012-03-06 | Novel water seepage concrete member |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866666A (en) * | 2012-12-07 | 2014-06-18 | 宏润建设集团股份有限公司 | Method for pouring novel water-seepage concrete members |
| CN103981785A (en) * | 2014-05-30 | 2014-08-13 | 北京建筑大学 | Pervious concrete paving system with penetration and drainage guide tubes |
-
2012
- 2012-03-06 CN CN2012200801133U patent/CN202787016U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866666A (en) * | 2012-12-07 | 2014-06-18 | 宏润建设集团股份有限公司 | Method for pouring novel water-seepage concrete members |
| CN103981785A (en) * | 2014-05-30 | 2014-08-13 | 北京建筑大学 | Pervious concrete paving system with penetration and drainage guide tubes |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |