32results about How to "Improve road quality" patented technology

A method for controlling a quality of a paving material distributed along a paving area using a paver includes: receiving a thermal profile of a portion of the paving area in which the paving material is distributed, and the thermal profile includes a plurality of temperature values assigned to respective measurement points, and analyzing the thermal profile in order to detect segregation spots of the paving material within the portion. Analyzing includes determining a first zone of measurement points arranged adjacent to each other and having temperature values within a predetermined range, the first zone being at least partially surrounded by measurement points having temperature values out of the predetermined range, and analyzing an orientation of the first zone with respect to a travel direction of the paver. The last substep of analyzing is assigning an indication, in particular an error indication, to the portion based on the analyzing of the orientation.

The invention discloses a road roadbed material containing municipal sludge residues. The road roadbed material comprises gel materials and auxiliary materials, wherein the gel materials comprise, inpercent by mass, 75-100% of the municipal sludge residues and 0-25% of cement, and the auxiliary materials comprise 0-30% of sand, 8-20% of lime and 25-50% of water based on the mass percentages of the components of the auxiliary materials in the total mass of the gel materials. The municipal sludge residues are prepared through the step of performing pyrolysis on pretreated municipal sludge in anitrogen atmosphere at 300-900 DEG C so that the municipal sludge residues are obtained. The prepared roadbed material can be applied to road construction, the road quality is improved, and meanwhilethe budget of road construction is reduced; and furthermore, a new way is provided for resource recycled utilization of an increasing amount of municipal sludge, so that waste recycled utilization isachieved, and the living environment is protected.

The invention discloses a roadbed drainage structure for a municipal administration road. The roadbed drainage structure comprises a high-elevation road segment and a low-elevation road segment. A intercepting drain is formed in the position of a slope toe of the high-elevation road segment, and a seepage-proof composite geomembrane is laid at the bottom of the intercepting drain; a layer of gravel is laid at the position, close to the high-elevation side, of the bottom of the intercepting drain; a baffle is arranged at the position, 30 cm away from the inner wall of the high-elevation side, in the intercepting drain; and a water suction pipe is further arranged in the intercepting drain. The invention further provides a construction method of the roadbed drainage structure. By the adoption of the roadbed drainage structure and the construction method of the roadbed drainage structure, a roadbed perched water problem is solved, meanwhile, the normal procedure of roadbed compaction is not affected, and it is guaranteed that the construction schedule is not affected.

The invention discloses a novel composite polyester felt, the main components of the novel composite polyester felt comprise alkali-free glass fibers, polyester fibers and mixed fibers of other auxiliary fibers; the alkali-free glass fibers are 11-14 mum in diameter and 15-20 mm in length; the diameter of the polyester fibers is 4-8 mum; the auxiliary fibers accounts for 5 % of the mixed fibers; during the production of the polyester felt, the final forming of the polyester felt is realized by using an adhesive; the adhesive comprises the following parameters: 30-40 % of acrylic acid series, 20-35 % of unsaturated resin, 20-40 % of vinyl acetate series and 0.3-0.6 % of coupling agent. The novel composite polyester felt has performances such as stiffness and has good fracture-resistant and tear-resistant strengths. The novel composite polyester felt is mainly applied to projects such as thin asphalt concrete overlays of asphalt pavements and repairing and repair construction of steel bridges paved with asphalt surface layers and road stones. The quality of pavements can be improved, the service life of roads can be prolonged, the tracks and the uneven pavement, resulting from pavement canalization and strong pressure can be prevented.

The invention discloses a high-viscosity modified asphalt-adopted white and black pavement structure. The structure comprises an original cement concrete pavement, a high-viscosity modified emulsifiedasphalt adhesion layer and a modified asphalt thin overlay layer; the upper surface of the original cement concrete pavement undergoes disease treatment and milling/planing treatment; the high-viscosity modified emulsified asphalt adhesion layer is paved on the upper surface, undergoing the disease treatment and milling/planing treatment, of the original cement concrete asphalt; and the modifiedasphalt thin overlay layer is paved on the upper surface of the high-viscosity modified emulsified asphalt adhesion layer. Compared with the prior art, the structure has the beneficial effect of sufficiently utilizing the existing road edge stones and manhole covers without enhancing the elevations of the road edge stones and manhole covers, has the advantages of saving the raw materials, decreasing the working procedures, reducing the cost, improving the environment, improving the road quality, prolonging the road life and improving the driving comfort, and is capable of decreasing the bridgeload when using white and black asphalt concrete pavements on the bridge surfaces so as to prolong the service life of the bridge surface.

The invention discloses a foamed asphalt integrated foaming beam for foamed asphalt cold-recycling plant mixing equipment. The beam comprises a foamed asphalt spraying beam connected with an asphalt conveying pipeline, and a plurality of asphalt foaming devices are equidistantly and uniformly distributed on the foamed asphalt spraying beam; an inlet end of a matrix hot asphalt nozzle is connectedwith the foamed asphalt spraying beam, and an outlet end of the matrix hot asphalt nozzle is connected with a top end of the asphalt foaming cavity; a gas nozzle and a water nozzle are arranged on a group of opposite side surfaces of the asphalt foaming cavity; a foamed asphalt nozzle is arranged at a bottom end of the asphalt foaming cavity; an air cylinder is arranged on the asphalt foaming device; the output end of the air cylinder is contacted with the matrix hot asphalt nozzle; and the air cylinder, the air nozzle and the water nozzle are connected with an electromagnetic valve. The air cylinder timely switches on and switches off asphalt, and the foaming cavity with a high-pressure air and high-pressure water opposite blowing function effectively forms foamed asphalt. And the asphaltfoaming device continuously sprays foamed asphalt into a stirrer and fully stirs the foamed asphalt with a cold-wet premixed mixture to form a high-quality cold-mixed foamed asphalt mixture.

The invention provides a road shoulder brick. The road shoulder brick comprises a brick body, the brick body is provided with a water draining channel, the water draining channel is communicated withthe outer part of the brick body at the end face positions of the two ends of the brick body, and the side, facing the vehicle lane, of the brick body is provided with a plurality of long grooves communicated with the water draining channel. By forming the water draining channel in the brick body, forming of a sewer on the vehicle lane is avoided, the transverse bearing effect of the road surfaceis ensured, and the road surface quality is relatively good. Meanwhile, the long grooves serving as water inlets are located on the side face of the brick body, even the long grooves are covered by leaves or plastic bags, the leaves or the plastic bags can easily fall down under the effect of the wind force and the gravity, the phenomenon of blocking is not liable to occur, and the water drainingeffect is good. In addition, by arranging the long grooves vertically, impurities such as the leaves or the plastic bags are effectively prevented from entering a water draining channel, and thus thewater draining channel is prevented from being blocked.

The invention relates to the field of construction, in particular to a novel soil compactor. The novel soil compactor comprises a vehicle frame, a driving cab mounted on the vehicle frame and a rear wheel driving device mounted below the vehicle frame, and further comprises a water sprinkling system, a hydraulic system, an intelligent system and an electrical system, wherein the water sprinkling system is mounted in front of the vehicle frame; the hydraulic system is connected with the rear wheel driving device; the intelligent system is mounted inside the driving cab; the intelligent system is electrically connected with the electrical system; the intelligent system comprises a level mechanism, a data receiving mechanism and a photographic probe mechanism; the photographic probe mechanismis mounted beside the level mechanism; the data receiving mechanism is electrically connected with the photographic probe mechanism. The novel soil compactor is an intelligent road roller which can automatically record, analyze and evaluate the road compacting quality, and then perform correction to make the road quality better.

The invention relates to a digital hydraulic control system for a paver screed, the paver screed using the system and a paver. The digital hydraulic control system comprises a hydraulic power elementand a mechanical feedback type digital servo hydraulic cylinder, wherein the hydraulic power element drives the mechanical feedback type digital servo hydraulic cylinder to move; the mechanical feedback type digital servo hydraulic cylinder controls the spatial position of a screed adjusting mechanism of the paver screed. The equipment use rate of the paver is increased, control is simplified, andthe paving quality can be improved. The mechanical feedback type digital servo hydraulic cylinder is arranged, a feedback adjustment simplified system is adopted, corresponding displacement is generated rapidly and accurately through a hydraulic cylinder, the flatness of the paving process is guaranteed, and therefore the pavement quality of a project is improved.

The invention discloses a road water stain dense position distinguishing method based on a density peak value method, which comprises the following steps: (1) carrying out data acquisition on an asphalt pavement to obtain the distribution condition of water stains in an asphalt pavement structure; (2) obtaining X-axis and Y-axis values of water stain dense points which are not detected by using an interpolation method; (3) calculating the obtained complete data to obtain the distance dij between the water spot dense points; (4) obtaining the distribution density rho i of the water stain dense points in the local range based on the distance dij between the water stain dense points and a density formula; (5) calculating the distance delta i between the dense point i of the water spots and the dense points j of the other water spots; and (6) based on the obtained distribution density rho i and distance delta i of the water spot dense points, selecting i sample data serial numbers as codes, and drawing a scatter diagram with rho as a horizontal coordinate and delta as a vertical coordinate, the road maintenance efficiency can be improved, the road maintenance cost can be reduced, and the method has profound significance for preventive maintenance of roads.

The invention provides a stability maintenance device for modified asphalt, and belongs to the technical field of road surface construction equipment. The stability maintenance device for modified asphalt comprises a stability maintenance tank, a firs temperature regulating and controlling device, a second temperature regulating and controlling device, a first stirring device, a second stirring device and a computer control system. According to the stability maintenance device provided by the invention, the stirring device and the temperature regulating and controlling devices arranged on top of the tank body and the bottom of the tank body are separately controlled by the computer control system, so that modified asphalt is stirred at a high speed at a proper temperature in the storage tank, occurrence of a modified asphalt segregation phenomenon is avoided, and stability of modified asphalt is sufficiently maintained.

The invention discloses a vibration road rolling device for highway construction. The device comprises a first connecting plate, and two second connecting plates are symmetrically and fixedly connected to one side of the first connecting plate; sliding grooves are formed in the adjacent sides of the two second connecting plates; and sliding blocks are slidably connected to the inner side walls ofthe two sliding grooves correspondingly. Connecting sleeves are fixedly connected to the adjacent sides of the two sliding blocks. in the using process of the device, a third connecting plate extrudesa first spring on the rod body to reduce shaking of the roller during road rolling construction and improve the road rolling quality; meanwhile, the third connecting plate extrudes the supporting plate and thus shaking generated during roller road rolling is further buffered, so that the working quality during roller road rolling construction is guaranteed, the road surface abrasion resistance isimproved, and the repair rate is reduced; meanwhile, the vibration amplitude is small, a good construction environment is brought to construction drivers, fatigue caused by construction is reduced, and the working efficiency can be effectively improved.