24results about "Paving reinforcements" patented technology

This utility model relates to the field of silicone PU sports court technology, specifically to a silicone PU composite sports court. Addressing the technical shortcomings of existing rigid reinforcement schemes that hinder material synergistic deformation, induce stress cracks, and create water seepage channels, this utility model employs a structural scheme where a foundation trench is created at the edge of the concrete base, with an array of barbs pre-set on the four walls of the trench. During the pouring of the silicone PU elastic layer, the flow wraps around the barbs, forming a three-dimensional interlocking body. Combined with the molecular-level penetration bonding layer at the bottom of the trench, a physical-chemical dual anchoring system is constructed. The spatial constraint effect of the foundation trench enhances the overall structural integrity, while maintaining the coordination of expansion and contraction during synergistic deformation. This design disperses peeling stress through mechanical interlocking, blocks water seepage paths, and eliminates stress abrupt changes caused by metal components, achieving a simultaneous improvement in edge peel strength and deformation adaptability, ensuring the long-term functional integrity of the sports court boundary.

The application discloses a semi-rigid base pavement high-performance reinforcing splicing method based on drilling and grouting and steel bar planting, and belongs to the technical field of pavement reinforcing splicing. The application comprises designing base broken line splicing size and old road base drilling and grouting and steel bar planting scheme, wherein drilling positions and intervals are determined according to target reinforcing effect; transverse drilling is carried out from the side of the excavated old road base splicing step, after drilling is completed, a grouting pipe is inserted into the hole and the hole is sealed, grouting reinforcing is carried out, and the local modulus of the old base is improved to be equivalent to that of the new road base; after grouting is completed, steel bars are inserted to carry out steel bar planting operation, half of the steel bars are planted into the hole and half of the steel bars are exposed outside; new road cement stabilized macadam base paving is carried out, the new base material naturally covers and holds the exposed part of the steel bars, after curing, splicing and construction of subsequent layer positions are continuously completed, the application can effectively and low-disturbance reinforce the old road base splicing position, and can realize high-performance splicing of effective anchoring and integral connection of the new and old bases.

The utility model discloses a ground anti -settlement device, including the device body, the device body side surface is set up and pours the hole, the device body top fixedly connected round board, the round board surface fixedly connected thread rod, the thread rod is to the symmetrical distribution form, the thread rod outside sleeve joint seal cover, the seal cover surface sets up and installs the hole, the thread rod inserts in the inside of installation hole, the thread rod outside sleeve joint nut, the nut is to the symmetrical distribution form. This ground anti -settlement device, through setting up and pouring the hole in the device body side surface, when needing to do the anti -settlement measure to the road, inserts the device body directly into the inside of road surface, at this time pours the concrete again to the inside of device body, at this time the concrete flows from the inside of pouring hole, covers up the seal cover after solidification, and the nut is screwed in the inside and outside of thread rod and is tightened, and the concrete solidification forms the support surface, at this time can support the road surface, makes its anti -settlement effect better.

The application discloses a kind of integral road pavement construction methods, belong to road pavement construction technical field, to solve the problem of the service life reduction of asphalt concrete pavement caused by poor rutting, interlayer adhesion and crack resistance of asphalt concrete pavement in prior art.The method comprises laying a base layer;Laying a composite mucosa layer on the base layer;A layer of geocell is laid on the composite mucosa layer, and asphalt mixture is filled into the grid of geocell to form a layer of geocell layer, and an adhesive layer is laid on the upper surface of the geocell layer;A layer of geocell is laid on the lower layer, and asphalt mixture is filled into the grid of geocell, and an adhesive layer is laid on the upper surface of the geocell layer;A layer of geocell is laid on the intermediate layer, and asphalt mixture is filled into the grid of geocell, and an adhesive layer is laid on the upper surface of the geocell layer;An abrasion layer is laid on the upper surface of the upper layer.The application can be used for the construction of integral road pavement.

This utility model relates to the field of sports facility construction technology, and in particular to a durable hybrid running track. This utility model provides a durable hybrid running track comprising a wear-resistant layer, a rubber granule layer, an adhesive bonding layer, a skeleton bonding layer, a reinforcing mesh layer, a rebound filler layer, a hydrophobic layer, a prefabricated installation structure layer, and a concrete base. The concrete base serves as the foundation load-bearing part of the track, and is pre-cast with high-strength concrete underground. The prefabricated installation structure layer is installed on top of the concrete base. The hydrophobic layer is located above the prefabricated installation structure layer and is flush with the ground. Above the hydrophobic layer, the rebound filler layer and the reinforcing mesh layer are sequentially arranged, with the rebound filler layer located between the hydrophobic layer and the reinforcing mesh layer. Stress-absorbing modules are also provided on the upper and lower sides of the rebound filler layer. The wear-resistant layer uses highly wear-resistant materials, which can effectively resist friction wear from shoe soles and other materials during long-term use, reducing the frequency of repair or replacement due to surface wear.

This application relates to a municipal sidewalk, belonging to the field of municipal road engineering technology. It includes a foundation, multiple rows of paving units arranged longitudinally side-by-side on the foundation, and a first filling layer disposed between adjacent paving units. Each paving unit includes multiple paving blocks arranged laterally at intervals, paving bricks disposed on the top surface of each paving block, and a second filling layer disposed between adjacent paving blocks. A first support pipe is transversely inserted through each paving unit. Each paving block has a first through-hole transversely penetrating the block for accommodating the first support pipe. This application has the effect of reducing the probability of sidewalk cracking.

This utility model relates to a durable and collapse-resistant silicone PU (SPU) sports court, comprising, from bottom to top: a compacted concrete layer, a first compression-resistant layer, a first buffer layer, a second compression-resistant layer, a second buffer layer, and a silicone PU layer; the first compression-resistant layer is formed of crack-resistant mortar; the second compression-resistant layer is formed by an array of several crack-resistant mortar blocks arranged at intervals and filled with shock-absorbing buffer blocks; both the first and second buffer layers are made of rubber or plastic. The silicone PU sports court provided by this utility model has better compression resistance, resistance to local collapse, and crack resistance, while also exhibiting good shock absorption and rebound performance.

This invention discloses a highly stable, weather-resistant precast rubber running track and its manufacturing process, belonging to the field of sports field materials technology. The track is composite-molded from a wear-resistant and weather-resistant surface layer, a highly elastic buffer middle layer, and a stable support bottom layer. The surface layer uses a modified rubber matrix compounded with weather-resistant additives and wear-resistant fillers; the middle layer combines resilience and deformation resistance; and the bottom layer incorporates an anti-slip and stable structure. The three layers are integrally hot-pressed and vulcanized. The manufacturing process optimizes the mixing, vulcanization, and molding steps, introducing gradient vulcanization and interfacial cross-linking processes to improve the interlayer bonding strength, high and low temperature resistance, and aging resistance of the track. This invention solves the problems of easy aging and cracking, interlayer delamination, and deformation instability in traditional precast rubber running tracks. It significantly extends the outdoor service life of the track, maintains stable mechanical properties, is suitable for various outdoor sports fields, and is convenient to construct, environmentally friendly, and odorless.

To provide a method for easily removing a dowel bar in partial replacement of a concrete pavement.SOLUTION: Concrete pavement is cut along joints and a concrete floor slab is removed. The concrete floor slab is continuously used, and at this time, a dowel bar half body 31 remains. A vertical hole 14 is formed by drilling from the pavement surface of the concrete floor slab toward an end of the dowel bar half body 31. A screw hole 36 is formed on the cut end face of the dowel bar half body 31, and a steel bar is screwed into the screw hole 36. The dowel bar is pulled out in the axial direction of the steel bar with a hydraulic jack through the steel bar.SELECTED DRAWING: Figure 3

The utility model relates to a kind of recycled aggregate durable pavement structure, it includes: stratiform main body, the stratiform main body sequentially includes from bottom to top: recycled aggregate particle compaction layer, mortar concrete pouring lower layer, mortar concrete pouring upper layer and inorganic cementing material reinforcing layer;The thickness of the recycled aggregate particle layer is 2~4cm, recycled aggregate particle is obtained by waste tyre;The thickness of the mortar concrete pouring lower layer is 8~12cm, the thickness of the mortar concrete pouring upper layer is 7~8cm;The thickness of the inorganic cementing material reinforcing layer is 5~10cm.

This utility model discloses a road surface widening and reinforcement structure, relating to the field of highway construction technology. It includes a vertical stepped structure, a longitudinal cast-in-place layer, a longitudinal cast-in-place top layer, and crack-resistant components. The vertical stepped structure is formed by cutting the old road surface base layer with a longitudinal cutting machine to create a stepped overlapping interface, with the cutting depth consistent with the thickness of the corresponding structural layer. The longitudinal cast-in-place layer is placed at the joint between the old and new road surfaces in the cement-stabilized crushed stone lower base layer, and the longitudinal cast-in-place top layer is placed at the joint of the upper base layer with its top surface flush. The crack-resistant components include ribbed steel bars transversely embedded in the middle of the upper base layer, crack-resistant wire mesh laid at the bottom of the lower base layer, and crack-resistant tape covering the joint of the upper base layer. This utility model achieves a seamless connection between the old and new road surfaces, forming an integrated load-bearing system and significantly improving the road surface's load transfer capacity and deformation resistance.

The utility model relates to the technical field of court surface layer structure, specifically relates to a court surface layer structure of semi -prefabricated composite wear -resisting layer, this structure includes modularized surface layer unit, by lower matrix layer, shock attenuation layer, upper matrix layer and wear -resisting layer prefabricated into an organic whole in proper order. Lower matrix adopts flexible rubber material, and the upper matrix layer selects polyurethane material, and is bonded with wear -resisting layer through adhesive to enhance the cohesive force. The surface layer unit both sides are equipped with the first clamping strip and the second clamping strip and its corresponding clamping groove of mutual match, have improved the assembling stability and strength. Wear -resisting layer forms the surface with concave -convex lines through heat trigger technology, and the wear resistance is strengthened. Shock attenuation layer not only promotes the damping effect but also assists the reinforcement of splicing joint. In addition, prefabricated hot melt splicing strip is arranged on the second clamping strip top, is used for reinforcing splicing performance. The utility model provides a court surface layer solution scheme easy to install, wear resistance is strong, and the shock attenuation performance is excellent and the surface performance is superior.

The present invention relates to an FEBD-based seamless bridge deck connection plate using a T-type shear stud structure and a construction method. The connection plate comprises a semi-continuous UHPC bridge deck connection plate configured to span across an upper side of an expansion joint at a beam end. A polyurethane pavement layer for bearing vehicle load is paved on an upper side of the semi-continuous UHPC bridge deck connection plate. T-type shear studs are arranged between the polyurethane pavement layer and the semi-continuous UHPC bridge deck connection plate. The connection plate can make a bridge deck seamless, significantly reducing damage such as pavement layer detachment and curling caused by large deformation differences when wheels roll over an expansion joint, and can better adapt to complex spatial stress states of bridge decks, satisfying normal use requirements of a continuous bridge deck structure, effectively shortening the construction period, and causing little impact on traffic.

The application discloses a continuous reinforced cement concrete pavement lap joint structure, which comprises an existing pavement structure and a newly-built pavement structure and a connecting and force transmission system arranged at a longitudinal lap joint interface between the two. Specifically, a multilayer reinforcing bar structure arranged at different heights in a plate thickness direction is used to connect the new and old concrete plates; a sleeper beam is arranged longitudinally along the lap joint interface at the bottom of the new plate and used as a force transmission component; the upper ends of a plurality of vertical support components are fixed to the sleeper beam, and the lower ends of the vertical support components extend into the underlying soil foundation; and a polyester glass cloth is laid between the surface layer and the concrete plate and used as a crack-resistant material layer. Compared with the prior art, the application can significantly improve the overall rigidity and settlement resistance of the lap joint area, effectively enhance the interface shear resistance and crack resistance, and inhibit reflection cracks, so as to improve the pavement durability and driving safety.

Provided is an asphalt reinforcement. The asphalt reinforcement includes: a reinforcing fiber layer having a plurality of holes formed therein; a film layer being breathable or non-breathable and having at least one resin selected from the group consisting of polypropylene, polyethylene, ethylene vinyl acetate, polyethylene elastomers, polypropylene elastomers, polybutene, and thermoplastic polyurethane, and has a melting point of 90° C. to 130° C.; and a nonwoven fabric layer disposed between the reinforcing fiber layer and the film layer, impregnated with an asphalt emulsion, and having a melting point of 50° C. to 130° C. The asphalt emulsion is prepared by mixing a first emulsion and a second emulsion and has a viscosity of 40 to 200 cP. The first emulsion contains modified asphalt, a curing agent, an anti-stripping agent, and petroleum resin, and the second emulsion contains latex, a fatty acid amine salt, calcium chloride, hydrochloric acid, a thickener, and water.

This invention discloses an embankment structure and construction method reinforced by geogrid and EICP, belonging to the field of embankment structure technology. It includes: a road base course, an embankment bearing layer, and a natural soil foundation layer. The natural soil foundation layer serves as the structural support for the embankment and is located at the bottom layer. The road base course bears the upper traffic load and evenly transfers it to the lower embankment bearing layer. The embankment bearing layer bears the upper load transferred from the road base course. This invention improves engineering performance through multi-layered synergistic effects. The core reinforcement layer adopts an innovative spatial grid structure, composed of prefabricated geogrids, obliquely arranged geogrid supports, and rigid load-bearing plates, forming a three-dimensional force transmission network. This overcomes the limitations of traditional reinforcement methods, achieving multi-directional load transfer and uniform distribution. Furthermore, the geogrid supports are arranged at a specific angle, ensuring structural rigidity while avoiding stress concentration.

The utility model discloses a kind of stable drainage type asphalt road, it is related to asphalt road technical field, to solve the problem of poor drainage performance of part of traditional asphalt pavement.Its technical scheme main point is: including symmetrically arranged retaining wall and the road body between two retaining walls, the joint of road body and retaining wall is equipped with the water guide portion for guiding the water of road body top surface to flow along vertical downward, a plurality of drain pipes are arrayed and distributed on retaining wall, one end of drain pipe is communicated with water guide portion, the other end of drain pipe is along the thickness direction of retaining wall and penetrates retaining wall.The utility model improves the overall drainage performance of road by the setting of structure, reduces the probability of ponding on road surface in the overall use process of structure.

The utility model relates to the field of building construction technology, and disclose a kind of access road for building construction, including access road board, further include: support plate is installed in the bottom of access road board, the bottom of support plate is embedded with reinforcing net, the surface of access road board both sides is equipped with first clamping groove, the surface of access road board is detachably connected with auxiliary plate, the surface of auxiliary plate is equipped with second clamping groove;The utility model when using, not only can be convenient for vehicle and pedestrian pass through, can also reduce the impact of vehicle directly to access road board simultaneously, in addition, positioning rod can increase the stability that access road board, support plate and auxiliary plate are installed on construction ground, and reinforcing net is embedded in construction ground, can be assisted to the position of support plate reinforcement, solve the vertical distance between the ground between the both sides of the current part of construction access road when using, access road, vehicle and pedestrian are prone to influence the traffic, and when vehicle passes, the both sides of the access road are directly stressed, and the stability is prone to be influenced.

The utility model discloses a bionic geometry reinforced assembly type pavement paving structure, including outer frame, a plurality of round units, a plurality of hexagonal units, outer frame have a plurality of side walls, and the space for accommodating assembly is formed by surrounding, and the upper and lower direction sets the mouth, and round unit and hexagonal unit form the topological structure with the coordinated mechanics performance in the outer frame, and round unit and hexagonal unit are located at the same height, and a plurality of hexagonal units are arranged around the round unit, and each hexagonal unit is adjacent to the round unit, and one side of hexagonal unit coincides with the partial arc of round unit, thereby forming the common edge connecting structure.

This application discloses a surface structure for a harbor terminal, comprising at least a concrete layer and a reinforcement layer, wherein the concrete layer is disposed outside the reinforcement layer; the reinforcement layer comprises a first transverse stirrup, a second transverse stirrup, and longitudinal reinforcement, wherein the longitudinal reinforcement is arranged side by side in the horizontal and vertical directions to form at least two layers of reinforcement structure, and the first transverse stirrup and the second transverse stirrup are alternately arranged on the reinforcement structure; the length of the first transverse stirrup is longer than that of the second transverse stirrup, and the second transverse stirrup intersects with at least four of the longitudinal reinforcements. The first transverse stirrup of this application can connect the two layers of reinforcement structure to form an integral skeleton, improving overall stability and load-bearing capacity. The design of the second transverse stirrup can locally connect the two layers of reinforcement structure, keeping the middle section stable. The combined design of the first and second transverse stirrups maintains the stability of the reinforcement skeleton. During construction, it avoids the problem of sinking due to human foot traffic.

Formwork, matrices, concrete matrices and methods of manufacture are described. The formwork may be configured to receive and retain concrete within an internal void space and has a concrete free external void space. Also described is a concrete matrix formed using the formwork and related methods of manufacture of a formwork matrix and formwork. The formwork itself and matrices formed from the formwork may have a degree of compressive strength. With concrete poured and set into the formwork, the resulting concrete matrix has a very high compressive strength and forms a structural matrix on which a hardscape or load may be placed. The above formwork, matrices, and methods reduces the number of parts needed to form a formwork or matrix and may facilitate snap fit design and installation and hence the ability to assemble the matrix toolessly.

The present invention relates to an asphalt composition containing an asphalt and a polyester resin composition, wherein the polyester resin composition contains a polyester resin and a hydrocarbon-based compound (i). The polyester resin has a structural unit derived from an alcohol component and a structural unit derived from a carboxylic acid component, wherein the carboxylic acid component contains at least one succinic acid compound selected from the group consisting of an alkylsuccinic acid and an alkenylsuccinic acid. The polyester resin composition has a glass transition point comprised between -70°C and 30°C and is present in the asphalt composition in an amount of ≥ 0.5 parts by mass and ≤ 25 parts by mass relative to 100 parts by mass of the asphalt.

The application relates to the field of road engineering technical materials, in particular to an anti-cracking fabric for a road interlayer structure and a preparation method and application thereof. The material contains, in mass parts, 95-100 parts of polypropylene resin, 3-5 parts of ultraviolet-resistant master batch, 1-2 parts of titanium dioxide, and 3-5 parts of shape memory polyurethane, and a three-dimensional anti-cracking fabric is prepared through a melt spinning process, a needle punching forming process and the like. The fabric can make the shear strength of a pavement and a base layer 1.5-1.8 MPa, the breaking strength of the fabric is greater than or equal to 15 kN / m, the permeability coefficient is less than or equal to 1*10 ‑9 cm / s, and the breaking strength retention rate after ultraviolet aging for 1000 hours is greater than or equal to 85%. Through raw material compounding and process synergistic optimization, the shear resistance, weather resistance, long-acting anti-cracking, interlayer adhesion and waterproof performance are simultaneously improved.

This invention relates to the field of municipal engineering technology and discloses a method for improving the durability of curb ramps with zero elevation difference. The specific implementation stages are as follows: Stage 1: Precise demolition and foundation treatment; Stage 2: Fine aggregate concrete pouring; Stage 3: Laying of spiral-wound spring pipes; Stage 4: Asphalt concrete surface paving. This invention addresses the zero elevation difference reconstruction of curb ramps at urban road intersections. Within a limited space of 300mm width and only 100-120mm thickness, it systematically solves the three major technical problems faced by the reconstructed road surface: insufficient base strength, insufficient surface layer strength, and interlayer water leakage through scientific design and innovative technical means. It is scientific, reasonable, and economical, significantly improving the overall durability and service life of asphalt concrete pavement. The use of spiral-wound spring pipes ensures the surface layer strength while forming a channel around the pipe material in the asphalt concrete layer to collect and discharge seepage water.