CN109972467B - Construction waste road cushion layer and pouring method thereof - Google Patents
Construction waste road cushion layer and pouring method thereof Download PDFInfo
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- CN109972467B CN109972467B CN201910364654.5A CN201910364654A CN109972467B CN 109972467 B CN109972467 B CN 109972467B CN 201910364654 A CN201910364654 A CN 201910364654A CN 109972467 B CN109972467 B CN 109972467B
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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
- E01C3/00—Foundations for pavings
- E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
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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
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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Abstract
The invention relates to the technical field of building roadbed surface layers, and discloses a building rubbish road cushion layer and a pouring method thereof, which sequentially comprise a soil base layer, a cushion layer, a transition layer, a water seepage layer, a steel fiber concrete layer and a concrete mortar surface layer from top to bottom; the cushion layer is formed by paving large-particle crushed aggregates, and rubber is filled in gaps among the large-particle crushed aggregates; the transition layer is formed by paving small particle crushed aggregates, and rubber is filled in gaps among the small particle crushed aggregates; and water seepage gaps are arranged on the steel fiber concrete layer and the concrete mortar surface layer. The road cushion layer is simple in structure, can recycle construction waste, and is high in strength and stability.
Description
Technical Field
The invention relates to the technical field of building roadbed surface layers, in particular to a building rubbish road cushion layer and a pouring method thereof.
Background
Construction waste refers to waste generated during the construction and demolition of a building. With the acceleration of the urbanization and industrialization development speed of China, the urban construction is simultaneously improved from extension development and large-scale old city reconstruction, the large-scale construction of residential districts and the reconstruction and extension of roads, so that a large amount of construction waste is rapidly generated.
Most of the construction wastes are transported to the outskirts without any treatment and are piled or buried in the open air, which not only causes high waste clearing and transporting cost and occupies a large amount of land, but also causes environmental pollution due to omission, dust, sand and the like generated in clearing, transporting and piling.
Disclosure of Invention
The invention aims to provide a construction waste road cushion layer and a pouring method thereof, which are used for recycling construction waste and provide the construction waste road cushion layer.
In order to achieve the purpose, the invention provides the following technical scheme: a construction waste road cushion layer sequentially comprises a soil base layer, a cushion layer, a transition layer, a water seepage layer, a steel fiber concrete layer and a concrete mortar surface layer from top to bottom; the cushion layer is formed by paving large-particle crushed aggregates made of construction waste, and rubber is filled in gaps among the large-particle crushed aggregates; the transition layer is formed by paving small particle crushed aggregates made of construction waste, and gaps among the small particle crushed aggregates are filled with rubber; water seepage gaps are arranged on the steel fiber concrete layer and the concrete mortar surface layer;
the pouring method of the construction waste road cushion comprises the following pouring steps: s1: respectively crushing the construction waste into large-particle crushed materials and small-particle crushed materials; s2: paving large-particle crushed aggregates on the soil base layer to form a cushion layer; s3: paving small particle crushed aggregates on the cushion layer to form a transition layer, and paving molten rubber on the upper surface of the transition layer; s4: paving a water guide layer on the transition layer, forming water permeable holes on the water guide layer, and paving a water seepage layer on the water guide layer; s5: laying a steel fiber concrete layer on the water seepage layer, inserting a connecting piece on the steel fiber concrete layer, laying a concrete mortar surface layer on the upper part of the connecting piece, and wrapping the upper part of the connecting piece by the concrete mortar surface layer; s6: and (6) finishing pouring.
The principle and the beneficial effects of the invention are as follows: in S1, the construction waste is respectively crushed into large-particle crushed materials and small-particle crushed materials for convenient utilization, so that the amount of land occupied by the construction waste is reduced, and after the construction waste is treated, dust, sand ash and the like of the construction waste are reduced, so that the purpose of reducing the environment pollution caused by the construction waste is achieved.
In S2 and S3, the large particle fragments and the small particle fragments constitute a cushion layer and a transition layer, respectively. The cushion layer and the transition layer are laid through the construction waste, and the broken stone cushion layer is replaced by the construction waste road cushion layer, so that the requirements of a pavement structure and the strength of a roadbed are met, the outward transportation of the construction waste is effectively reduced, and the construction cost is reduced; the construction waste transition layer can effectively improve the overall stability of the cushion layer and the strength of the roadbed. The building garbage is composed of inorganic substances such as broken concrete, broken bricks and tiles, broken sand and stone soil and the like. The chemical components are silicate, oxide, hydroxide, carbonate, sulfide, sulfate, etc. It has excellent strength, hardness, wear resistance, impact toughness, frost resistance, water resistance, etc. and thus high strength and high stability. The construction waste has good physical and chemical stability, and the performance of the construction waste is superior to that of soil, silty soil, even sandy soil and lime soil. The building garbage has good water permeability, does not swell or shrink when meeting water, and is a building material with good water stability which is difficult to obtain in road engineering. The construction waste has large particles, small specific surface area, less film water and no plasticity. The water permeability is good, the capillary water rise can be blocked, the strength of the foundation mat layer of the building rubbish is not changed greatly in a wet state and environment, and the pavement material is ideal, high in strength and good in stability. In the prior art, the construction waste is used for laying the cushion layer, the particle crushed materials of the construction waste are adopted, the cushion layer is not reinforced after laying, and the strength and the stability of the cushion layer are general. The applicant finds that the strength and the pressure resistance of the cushion layer can be enhanced by paving the particle fragments with different particle sizes on the cushion layer, and the rubber in a molten state is filled in the cushion layer so as to improve the tightness among the particle fragments in one step, so that the gaps among the particle fragments are completely filled by the rubber in the molten state, and the stability and the strength of the cushion layer are improved.
In S4, the water-permeable layer permeates water and drains water through the water-guiding layer, thereby reducing the amount of water. The connecting piece is connected with the steel fiber concrete layer and the concrete mortar surface layer in the S5, and after the concrete mortar surface layer and the steel fiber concrete layer are completely solidified, the connecting piece can be clamped between the concrete mortar surface layer to lock the concrete mortar surface layer and the steel fiber concrete layer. And secondly, water on the concrete mortar surface layer and the steel fiber concrete layer can flow to the water seepage layer through the water seepage gap and flow away through the water seepage layer and the water guide layer, so that the aim of draining is fulfilled.
Further, including laying the water guide layer between transition layer and water seepage layer, the water guide layer is including supporting the mortar layer and setting up a plurality of supporting shoe at supporting the mortar layer up end, has seted up the hole of permeating water on the supporting mortar layer. The supporting shoe can support the supporting mortar layer, and the water that the permeable hole that offers on the supporting mortar layer flows to the supporting mortar layer with the infiltration gap draws away.
Further, the support block is made of concrete. The concrete material has low cost and high strength.
Further, the particle size of the large particle crushed aggregates is not more than 400 mm. The particle size of the large-particle crushed aggregates is not more than 400mm, so that the paving is facilitated, and when the cushion layer is filled with molten rubber, the rubber can flow into gaps of the large-particle crushed aggregates.
Further, the particle size of the small particle crushed aggregates is not more than 150mm, and the content of the small particle crushed aggregates with the particle size of less than 0.05mm is not less than 30%. The content of small particle crushed aggregates with the particle size of less than 0.05mm is not less than 30%, and the small particle crushed aggregates with the particle size of less than 0.05mm can be filled into gaps of the small particle crushed aggregates with the particle size of more than 0.05mm, so that the compactness of the transition layer can be increased, and the strength of the transition layer is enhanced.
Furthermore, a connecting piece is arranged between the steel fiber concrete layer and the concrete mortar surface layer, the connecting part at the upper end of the connecting piece is positioned in the concrete mortar surface layer, and the connecting part at the lower end of the connecting piece is positioned in the steel fiber concrete layer. The steel fiber concrete layer and the concrete mortar surface layer are locked through the connecting piece, and the connection stability of the steel fiber concrete layer and the concrete mortar surface layer is improved.
Further, the cross section of the connecting part is conical, and the tip of the connecting part faces oppositely. The tip of the connecting part is convenient to insert into the steel fiber concrete layer and the concrete mortar surface layer.
Further, the thickness of the transition layer is 250 mm-400 mm. The strength of the transition layer is less than 250mm, the thickness of the transition layer is more than 400mm, the thickness is too large, and the pouring cost is large.
Further, the thickness of the cushion layer is 300 mm-600 mm. The transition layer thickness is less than 300mm, the strength is not enough, the cushion layer thickness is too big, the pouring cost is great, and the discharge of water is not convenient for.
Drawings
FIG. 1 is a front cross-sectional view of a construction waste roadway mat according to the present invention;
FIG. 2 is a front view of a water conducting layer according to the present invention;
FIG. 3 is a top view of a water conducting layer according to the present invention;
FIG. 4 is an axial view of the connector of the present invention;
fig. 5 is a front cross-sectional view of the connector of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the concrete mortar supporting and grouting material comprises a soil base layer 10, a cushion layer 20, a transition layer 30, a water guide layer 40, a supporting mortar layer 41, water permeable holes 42, supporting blocks 43, a water permeable layer 50, a steel fiber concrete layer 60, a concrete mortar surface layer 70, a connecting piece 80, an upper connecting part 81, a lower connecting part 82, a sleeve 83, a sliding shaft 84 and a spring 85.
The first embodiment is as follows:
a construction waste road cushion is basically shown in figure 1, and sequentially comprises a soil base layer 10, a cushion layer 20, a transition layer 30, a water guide layer 40, a water seepage layer 50, a steel fiber concrete layer 60 and a concrete mortar surface layer 70 from bottom to top, wherein vertical water seepage gaps are formed in the steel fiber concrete layer 60 and the concrete mortar surface layer 70. A plurality of connectors 80 are uniformly distributed along the longitudinal direction between the steel fiber concrete layer 60 and the concrete mortar surface layer 70, the number of the connectors 80 is five in the embodiment, and the connectors 80 are made of stainless steel materials in the embodiment.
As shown in fig. 2 and fig. 3, the water guide layer 40 includes a supporting mortar layer 41 and a plurality of supporting blocks 43 fixed on the upper end surface of the supporting mortar layer 41, the supporting blocks 43 are distributed in a horizontal array, the supporting blocks 43 are made of concrete material, water permeable holes 42 are formed in the supporting mortar layer 41, and the water permeable holes 42 penetrate through the supporting mortar layer 41. As shown in fig. 4, the connecting member 80 includes a connecting rod, an upper connecting portion 81 and a lower connecting portion 82, and the upper connecting portion 81 and the lower connecting portion 82 are tapered in cross section. The tip of the upper connection part 81 faces the concrete mortar surface layer 70, and the tip of the lower connection part 82 faces the steel fiber concrete layer 60.
The pouring method of the construction waste road cushion comprises the following steps:
s1: respectively crushing the construction waste into large-particle crushed materials with the particle size not larger than 400mm and small-particle crushed materials with the particle size not larger than 150mm, wherein the content of the small-particle crushed materials with the particle size smaller than 0.05mm is not smaller than 30% of the total amount of the small-particle crushed materials. The average particle size of the large particle size fraction may thus be 50mm, 100mm, 150mm, 200mm, 250mm, 300mm, 350mm and 400mm, in this example 300 mm; similarly, the average particle size of the small crushed pieces may be 0.01mm, 0.02mm, 0.03mm, 0.04mm, 50mm, 100mm and 150mm, in this embodiment, 100mm and 0.04mm, and the small crushed pieces of 0.04mm account for 34% of the total amount.
S2: the large-particle crushed aggregates are laid on the soil base 10 to a thickness of 250mm to 400mm, 300mm in this embodiment, thus constituting the mat layer 20.
S3: the transition layer 30 is formed by laying small-grained particles to the mat layer 20 and having a thickness of 300mm to 600mm, in this example 400 mm. The molten rubber is laid on the upper surface of the transition layer 30, and flows into the gaps of the large and small crushed particles by gravity, thereby achieving filling of the cushion layer 20 and the transition layer 30. Molten rubber enters into large granule crushed aggregates clearance, tiny particle crushed aggregates clearance, treats that rubber cools off the back and glues large granule crushed aggregates together, glues tiny particle crushed aggregates together, so cushion course 20 and transition layer 30 can effectively improve building rubbish road cushion course 20's overall stability and intensity.
S4, paving the water guide layer 40 on the transition layer 30, and paving the water seepage layer 50 on the water guide layer 40, wherein the water seepage layer 50 is made of coarse sand. The concrete supporting block 43 is inserted into the water seepage layer 50, when the water of the water seepage layer 50 permeates the supporting mortar layer 41, the water can be guided away through the water permeable holes 42, and the supporting block 43 is uniformly distributed, so that the water of the water seepage layer 50 flows onto the supporting mortar layer 41, and the water is favorably drained away through the water permeable holes 42.
S5: lay steel fiber concrete layer 60 on permeable layer 50, specifically, before steel fiber concrete layer 60 solidifies, insert five lower connecting portion 82 in steel fiber concrete layer 60, and lower connecting portion 82 equipartition, wait that steel fiber concrete layer 60 solidifies after, lay concrete mortar surface course 70 on steel fiber concrete layer 60, and concrete mortar surface course 70 wraps up upper connecting portion 81. Vertical water seepage gaps are formed in the steel fiber concrete layer 60 and the concrete mortar surface layer 70, so that water drainage is facilitated, and water accumulation is avoided. And finishing the construction of the construction waste road cushion layer.
Example two:
the difference from the first embodiment is that, as shown in fig. 5, the connecting member 80 includes a sleeve 83 and a slide shaft 84 located inside the sleeve 83, the slide shaft 84 and the sleeve 83 are both made of concrete material, and the slide shaft 84 and the sleeve 83 are cast by a mold. The slide shaft 84 is vertically and slidably connected with the sleeve 83, a spring 85 is arranged at the lower end of the slide shaft 84, one end of the spring 85 is fixed at the lower end of the slide shaft 84, and the other end of the spring 85 is fixed on the lower connecting part 82. The upper connecting portion 81 is integrally formed with the slide shaft 84, and the lower connecting portion 82 is integrally formed with the sleeve 83. The sleeve 83 is filled with a non-Newtonian fluid, which in this embodiment is a dilatant fluid, the viscosity of which increases with increasing shear rate (not shown).
When the concrete mortar surface layer 70 is subjected to a large pressure, the concrete mortar surface layer 70 applies a compression force to the steel fiber concrete layer 60, and at this time, the upper connecting portion 81 pushes the sliding shaft 84 to compress the spring 85, so that the concrete mortar surface layer 70 is buffered by the spring 85. When current road bed course 20's surface course received the extrusion, can directly exert pressure to the one deck down, can take place deformation to all around when the lower floor received pressure, and the time is longer, and the deformation volume of lower floor will be big more, leads to road bed course 20 to take place deformation so to lead to bed course 20's intensity to reduce gradually, lead to bed course 20 to split even. In this embodiment, be used for buffering the extrusion force through spring 85, avoid the surface course directly to use the effort on steel fiber concrete layer 60, so reduce steel fiber concrete layer 60's deformation. When the car is on the mat 20, the mat 20 may vibrate greatly, for example, around 20t of a truck, and when the car is on the mat 20, the mat 20 may vibrate. The layers closer to the truck are subjected to greater vibration, such as the concrete mortar face layer 70 and the steel fiber concrete layer 60 in this embodiment. The two layers are subject to vibration and delamination easily occurs. Through the connecting member 80 in this embodiment, the elastic force of the spring 85 will pull the upper connecting portion 81 and the lower connecting portion, so that the elastic force of the spring 85 acts on the concrete mortar surface layer 70 and the steel fiber concrete layer 60 to prevent the two from delaminating, thereby effectively reducing the probability of delaminating the cushion 20 due to vibration.
The non-Newtonian fluid may replace the action of the spring 85 when it is difficult to replace the spring 85 after it has corroded and damaged in the casing 83. The spool 84 acts on the non-Newtonian fluid, which dampens the spool 84 when the non-Newtonian fluid is subjected to the force of the spool 84. Specifically, the acting force of the sliding shaft 84 is dispersed by the non-newtonian fluid, so that the purpose of shock absorption and buffering is achieved, the acting force of the steel fiber concrete layer 60 can be reduced, and the probability of delamination between the steel fiber concrete layer 60 and the concrete mortar surface layer 70 is reduced.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent. The techniques, shapes, and structural parts, which are omitted from the description of the present invention, are all known techniques.
Claims (8)
1. The utility model provides a building rubbish road bed course which characterized in that: the concrete mortar surface layer comprises a soil base layer, a cushion layer, a transition layer, a water seepage layer, a steel fiber concrete layer and a concrete mortar surface layer from top to bottom in sequence; the cushion layer is formed by paving large-particle crushed aggregates made of construction waste, and rubber is filled in gaps among the large-particle crushed aggregates; the transition layer is formed by paving small particle crushed aggregates made of construction waste, and gaps among the small particle crushed aggregates are filled with rubber; be equipped with the infiltration gap on steel fibre concrete layer, the concrete mortar surface course, be provided with the connecting piece between steel fibre concrete layer and the concrete mortar surface course, the connecting portion of connecting piece upper end is located the concrete mortar surface course, and the connecting portion of connecting piece lower extreme is located the steel fibre concrete in situ, the cross section of connecting portion is the toper, and the most advanced orientation of connecting portion is opposite, and the connecting piece includes the sleeve pipe and is located the slide shaft of cover intraductal, and slide shaft and sleeve pipe are made by concrete material, and slide shaft and sleeve pipe pour through the mould and form, the vertical sliding connection of slide shaft and sleeve pipe, the lower extreme of slide shaft is provided with the spring, and the low side at the slide shaft is fixed to the one end of spring, and the other end of spring is fixed under on connecting portion.
2. The construction waste roadway mat of claim 1, wherein: still including laying the water guide layer between transition layer and water seepage layer, the water guide layer is including supporting the mortar layer and setting up a plurality of supporting shoe at supporting the mortar layer up end, has seted up the hole of permeating water on the supporting mortar layer.
3. The construction waste roadway mat of claim 2, wherein: the support block is made of concrete.
4. The construction waste road mat according to any one of claims 1 to 3, characterized in that: the particle size of the large-particle crushed aggregates is not more than 400 mm.
5. The construction waste road mat according to any one of claims 1 to 3, characterized in that: the particle size of the small particle crushed aggregates is not more than 150mm, and the content of the small particle crushed aggregates with the particle size of less than 0.05mm is not less than 30%.
6. The method for pouring the construction waste road mat according to claim 5, characterized in that: the method comprises the following steps:
s1: respectively crushing the construction waste into large-particle crushed materials and small-particle crushed materials;
s2: paving large-particle crushed aggregates on the soil base layer to form a cushion layer;
s3: paving small particle crushed aggregates on the cushion layer to form a transition layer, and paving molten rubber on the upper surface of the transition layer;
s4: paving a water guide layer on the transition layer, forming water permeable holes on the water guide layer, and paving a water seepage layer on the water guide layer;
s5: laying a steel fiber concrete layer on the water seepage layer, inserting a connecting piece on the steel fiber concrete layer, laying a concrete mortar surface layer on the upper part of the connecting piece, and wrapping the upper part of the connecting piece by the concrete mortar surface layer;
s6: and (6) finishing pouring.
7. The method for pouring the construction waste road mat according to claim 6, characterized in that: the thickness of the transition layer is 250 mm-400 mm.
8. The method for pouring the construction waste road mat according to claim 7, characterized in that: the thickness of the cushion layer is 300 mm-600 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910364654.5A CN109972467B (en) | 2019-04-30 | 2019-04-30 | Construction waste road cushion layer and pouring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910364654.5A CN109972467B (en) | 2019-04-30 | 2019-04-30 | Construction waste road cushion layer and pouring method thereof |
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| Publication Number | Publication Date |
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| CN109972467A CN109972467A (en) | 2019-07-05 |
| CN109972467B true CN109972467B (en) | 2020-05-19 |
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| CN113265920A (en) * | 2021-05-14 | 2021-08-17 | 北京科技大学 | Grading machine block stone-soil road foundation cushion layer and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086083A (en) * | 2017-11-22 | 2018-05-29 | 温州伟国建设有限公司 | Road cushion |
| CN207552839U (en) * | 2017-12-03 | 2018-06-29 | 张亮栋 | A kind of building waste road cushion |
| CN108623257A (en) * | 2018-05-23 | 2018-10-09 | 柳州紫荆生态工程科技有限公司 | A method of utilizing building waste permeable pavement material |
| CN208219340U (en) * | 2018-04-24 | 2018-12-11 | 西安建筑科技大学 | A kind of new city road permeable pavement structure |
| CN109487760A (en) * | 2018-12-07 | 2019-03-19 | 黄虎 | A kind of hydraulic structure large volume backfill structure and method |
-
2019
- 2019-04-30 CN CN201910364654.5A patent/CN109972467B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086083A (en) * | 2017-11-22 | 2018-05-29 | 温州伟国建设有限公司 | Road cushion |
| CN207552839U (en) * | 2017-12-03 | 2018-06-29 | 张亮栋 | A kind of building waste road cushion |
| CN208219340U (en) * | 2018-04-24 | 2018-12-11 | 西安建筑科技大学 | A kind of new city road permeable pavement structure |
| CN108623257A (en) * | 2018-05-23 | 2018-10-09 | 柳州紫荆生态工程科技有限公司 | A method of utilizing building waste permeable pavement material |
| CN109487760A (en) * | 2018-12-07 | 2019-03-19 | 黄虎 | A kind of hydraulic structure large volume backfill structure and method |
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