48results about How to "Fast open traffic" patented technology

The invention relates to a cold construction color cementing material for resin concrete. According to the invention, a composite epoxy resin used as a substrate is prepared by mixing a bisphenol A type epoxy resin and a flexible epoxy resin and subjecting an obtained mixture to modification by a flexibilizer, a coupling agent and an anti-ageing agent; a curing agent is prepared by modifying a conventional curing agent with a dispersant and a defoaming agent; the cementing material has obviously superior high temperature performance, low temperature performance, water stability and fatigue resistance to those of common asphalt and SBS modified asphalt; the cementing material in a liquid state needs no extra heating in the processes of mixing, transporting, paving and compacting, according with requirements for energy saving and low carbon; when the prepared resin concrete for cold construction is used for laying of a pavement, a curing period is short, and traffic is rapidly opened; an inorganic pigment or organic pigment is added for preparation of the color cementing material which is applicable to pavements with different functional requirements; composition materials are easily available, and the cold construction color cementing material is prepared by using a conventional method and is easy for large scale popularization.

The invention relates to a multi-functional bridge seamless expansion device and a construction technology. The multi-functional bridge seamless expansion device comprises an expansion system, a supporting system, a car stopping system, a detecting and data collecting system, an analysis system, an alert and display system, a wifi and GPS system and a controlling system. The construction technology comprises the steps of cutting, sliding groove forming, stand column and sliding column installing, radar antenna installing, stress and strain detector installing, amplitude and frequency detector installing, car stopping system installing, expansion system installing, sound broadcaster and displayer installing, control switch installing, wifi and GPS system installing and analysis system and alert system installing. The multi-functional bridge seamless expansion device and the construction technology have the advantages that universality is high, the service life is long, the cost is low, the construction speed is high, maintenance is convenient, the maintaining cost is low and traffic open is fast.

The invention relates to a graded broken stone filling type semi-flexible composite pavement mixture, which comprises the following components in parts by mass: 100 parts of graded broken stone; 4-6 parts of water and 6-10 parts of a grouting material. The grouting material comprises cement, water-based acrylic resin, a volcanic ash material and water. The grouting material is poured into the graded broken stone. The semi-flexible composite pavement mixture can be constructed at normal temperature, thus effectively solving the rutting problem of asphalt pavements and improving the durability of the pavements. The environmental pollution caused by hot mix construction of a filled semi-flexible pavement can be reduced. The construction efficiency of a filled composite pavement is improved, and the production cost is reduced.

The invention discloses a super-early-strength black steel fiber concrete castable which is prepared by mixing super-early-strength dry-mixed mortar, a coarse aggregate, a coloring agent, steel fibersand other raw materials according to a certain proportion. The invention further discloses a using method of the super-early-strength black steel fiber reinforced concrete castable. The super-early-strength black steel fiber reinforced concrete castable disclosed by the invention has the characteristics of high early strength, good durability, small chromatic aberration with road asphalt concreteand the like, uses few types of materials, is simple and convenient in construction process, does not need to be rolled, is suitable for rapid repair of urban inspection well concrete, and can meet the functional requirement of rapidly opening traffic within 3 hours.

The invention discloses a preparation method of high-solid-content emulsified SBS (styrene-butadiene-styrene) modified asphalt and an application of the modified asphalt in micro-surfacing. The preparation method of the emulsified SBS modified asphalt comprises the steps as follows: the SBS modified asphalt is heated to 170-190 DEG C, liquid soap is prepared by a slow-breaking and quick-setting asphalt emulsifier and water, temperature is adjusted to 45-65 DEG C, acid is adjusted to 1.5-2.5, 65-80 parts by weight of asphalt and 20-30 parts by weight of liquid soap are added into a colloid mill simultaneously for high-speed grinding and shearing, then the temperature is reduced to be lower than 80 DEG C through a heat exchanger, and a high-concentration modified emulsified asphalt product can be produced. The prepared emulsified SBS modified asphalt has the characteristics of high solid content and low production and transportation cost; and a mixed micro-surfacing thin pulp mixture has the characteristics that mixing time meets requirements, the film forming performance of the asphalt on the surface of a stone is good, the high-temperature property and wear resisting property are excellent, early strength is formed quickly, and a pavement can carry traffic earlier.

The invention provides a high-performance asphalt mixture for steel bridge floor pavement and a preparation method thereof, aims to solve the problem that the conventional asphalt mixture for steel bridge floor pavement cannot be high in compactness, reliable in high temperature anti-deforming capability, excellent in low temperature deforming capability and high in fatigue-resistant capability at the same time, and belongs to the field of road engineering materials. The asphalt mixture provided by the invention comprises the following components in percentage by mass: 78.8-82.5% of an aggregate, 0.5-2.6% of an asphalt mixture anti-rut agent, 1.8-5.7% of rubber powder, 9.2-12.5% of a cementing material and 0-6.0% of a filler. The preparation method comprises the following steps: firstly, conducting heat preservation on the aggregate, heating a mixer, and then simultaneously adding the aggregate subjected to heat preservation, the asphalt mixture anti-rut agent and the rubber powder into the heated mixer for mixing; secondly, adding the cementing material for mixing; finally, adding the filler for mixing. The asphalt mixture provided by the invention is a novel asphalt mixture being low in price and simple for construction, and integrating the three properties of high compactness (waterproof capability), excellent high temperature anti-rut capability and excellent low temperature deforming capability, and particularly suitable for steel bridge floor pavement in a seasonal frost region under the high temperature and heavy-loaded traffic conditions.

The invention discloses a cement concrete pavement waterproof structure with an embedded seam of a full-seam-opening hollow elastic tube, comprising a hollow elastic tube which is arranged in the embedded seam and can horizontally expand and contract along with the expansion and contraction of a pavement slab; the elastic tube is at least provided with an arch-shaped bulge upwards under the squeezing action of the pavement slab; the surface of the hollow elastic tube, over against the seam, is provided with an open seam of which the inside and outside are communicated; the pre-compressed magnitude of a hollow elastic waterproof part is large, so that the hollow elastic waterproof part can have relatively large extension and compression space, can adapt to deformation of a concrete slab for a long time, and especially can adapt to horizontal expansion and contraction deformation and vertical shear deformation; and when the width of a transverse seam changes with the temperature, because the compression degree of the hollow elastic waterproof part is suitable for expansion and contraction motion of the hollow elastic waterproof part, under the conditions of the expansion and contraction deformation and shear deformation of the transverse seam, by reducing the interfacial stress caused by the expansion and contraction deformation and shear deformation of the transverse seam, the joint between the transverse seam and the elastic waterproof part can not be damaged because of separation of the elastic waterproof part from the transverse seam.

The invention belongs to the technical field of coatings, and particularly relates to a fused protruding light reflecting coating. The fused protruding light reflecting coating comprises the following components by weight percent: 15%-20% of C5 petroleum resin, 1%-10% of pigment, 65%-80% of filler, 1%-6% of reflective glass bead, and 2%-8% of additive. The fused protruding light reflecting coating has the beneficial effects that 1. after the coating is painted on the road, the road can be put into use very soon, generally in 15 minutes; 2. when a car drives on the road coated with the coating, the coating gives out special sound to warn a driver, thus effectively improving the safety.

The invention provides a normal temperature two-component liquid crack pouring adhesive, which is a polyurethane two-component A-B type liquid crack pouring sealant. Specifically, the component A is aprepolymer prepared by chemical synthesis of a variety of materials including methylenediphenyl diisocyanate (MDI), polyether polyol, chlorinated paraffin, dioctyl phthalate, etc; the component B isa mixture of asphalt, polyether polyol, chlorinated paraffin, polyisobutylene, a crosslinking agent, a coupling agent, a catalyst, a drier, light calcium powder and other materials. During use, the component A and component B are fully mixed in certain proportion and then directly poured into pavement cracks, thus obtaining the pavement crack pouring and sealing material with the advantages of high cohesive force, high adhesion, high wear resistance, high weatherability and rapid curing. And the two-component liquid crack pouring sealant can be used for various cracks on asphalt and cement pavements.

The invention discloses a bridgehead pavement subsidence nondestructive quantitative detection and non-excavation type rapid treatment grouting construction method. The method is characterized in that; the construction method comprises the following steps: (1) carrying out rapid nondestructive testing and quantitative evaluation on pavement void; (2) drilling; (3) arranging a jacking monitoring system; (4) mounting a grouting pipe and installing a grouting head; (5) grouting; (6) performing hole sealing; (7) performing quality control; and (8) performing grouting effect detection. The method solves the industrial problems of large excavation scale, high construction difficulty, difficulty in thorough treatment and large traffic interference in treatment of the bridgehead pavement subsidence disease.

The invention discloses an activated waste rubber powder mixture for noise reduction micro-surfacing. The raw materials of the activated waste rubber powder mixture comprise mineral material, modifiedemulsified asphalt, activated waste rubber powder, cement, octadecyltrimethylammonium chloride and composite additive, and the composite additive is a mixture of polyphenylsiloxane, N,N-dicyclohexyl-2-benzothiazolyl sulfenamide, chloroprene rubber, polypropylene glycol diacrylate, polytetrahydrofuran ether and a crosslinking agent. The compatibility and the bonding performance of the rubber powder and the mineral material with asphalt are improved to improve the noise reduction effect, the viscosity, the viscosity and the toughness of the asphalt are improved by an asphalt modifier to improvethe weather resistance, the water resistance and the flow resistance of the noise reduction micro-surfacing and enhance the noise reduction effect, and the octadecyltrimethylammonium chloride is usedto enhance the micro-surfacing strength formation speed in order to achieve the purpose of rapid opening to traffic; and the compatibility of all the components is improved through the composite additive, the mechanical energy is converted into movement energy of micro-molecular chain or segments, and the mechanical energy is converted into the form of thermal energy to dissipate, so the noise reduction effect is improved.

The invention provides a construction method of an open-graded drainage type epoxy asphalt ultrathin anti-skid wearing layer, and belongs to the technical field of highway construction. The anti-skidwearing layer is composed of an open-graded epoxy asphalt mixture with the porosity ranging from 15% to 20%, and the total thickness of the anti-skid wearing layer is about 1 cm. The invention aims toprovide the construction method of the ultrathin anti-skid wearing layer for improving the drainage property and the skid resistance of the pavement. Starting from the whole process of mixing, transporting, paving, rolling and the like, the formed wearing layer has enough pavement performance and plays a role in surface layer drainage, the phenomenon of water drifting generated when an automobileruns at a high speed is reduced, the contact area of tires and a road surface is increased, and the anti-skid capacity is improved; the thickness of the wearing layer is controlled to be about 1 cm,the ultrathin anti-skid wearing layer is formed, the construction cost is reduced, and the traffic opening time after construction is shortened.

The invention discloses an environment-friendly road surface paving material. The environment-friendly road surface paving material is characterized by comprising the following substances in parts by weight: 60-75 parts of gravels, 11-13 parts of ruditapes philippinarum shell powder, 9-13 parts of razor clam shell powder, 8-13 parts of clam shell powder, 2-6 parts of a thickening agent, 15-20 parts of urea formaldehyde resin, 12-16 parts of polytetrafluoroethylene gum, 3-8 parts of organic silicon modified epoxy resin, 7-13 parts of sodium carbonate, 3-6 parts of calcium carbonate, 9-14 parts of potassium dichromate and 3-5 parts of fillers. The environment-friendly road surface paving material has the beneficial effects that the construction workability is very good; the opened traffic is short and the effective compaction time is long, so that the road construction quality is improved.