34results about How to "Short opening hours for traffic" patented technology

The invention relates to a concrete pavement material for heavy traffic roads and a preparation method thereof. The material is composed of a component A, a component B and a component C in a mass ratio of 1:(0.2-0.6):(4-8). The component A comprises the following components in parts by mass: 40-80 parts of epoxy resin, 0-20 parts of epoxy reactive diluent, 10-50 parts of elastic modifier, 0.2 part of defoaming agent and 0.2 part of dispersing agent. The component B comprises the following components in parts by mass: 100 parts of curing agent, 0-10 parts of curing accelerator and 1 part of coupling agent. The component C comprises the following components in parts by volume: 100 parts of fine stone, 30-300 parts of fine sand, 130-800 parts of waste rubber particle, 50-100 parts of waste rubber powder and 10-20 parts of crystal whisker. Compared with the prior art, the concrete pavement material for heavy traffic roads has the advantages of high strength, favorable durability, favorable roadability, energy saving, environment friendliness and the like, and is convenient for construction.

The invention discloses a cold mix epoxy resin material for quickly repairing epoxy asphalt pavement pits. The cold mix epoxy resin material comprises a component A and a component B, wherein the component A mainly comprises epoxy resin, an active diluent, a coupling agent, a thixotropic agent and a reinforcing agent, and the component B mainly comprises a curing agent, an accelerant, a thixotropic agent, a defoaming agent and a toughening agent. The mass ratio of the component A to the component B is 100: (200 to 100): 260, a mixture of components A and B is mixed with aggregate to obtain a cold mix epoxy resin mixture, and the mass ratio of the sum of the A component and the B component to the aggregate is 16:84 to 19:81. The cold mix epoxy resin material for quickly repairing epoxy asphalt pavement pits disclosed by the invention has the advantages of high bonding strength, good toughness, good waterproofness, normal temperature mixing, simple construction process, short open traffic time, energy conservation, environmental protection, etc. The cold mix epoxy resin material disclosed by the invention is mainly suitable for quickly repairing epoxy asphalt pavement pits and suitable for quickly repairing such pavements as high grade highways, tunnels, airport runways, cement concrete bridge decks, etc. The invention discloses a preparation method of the cold mix epoxy resin material.

The invention discloses a method for quickly repairing a concrete road surface. Each cubic meter of road surface repairing materials adopted by the method comprise the following components by weight: 333 to 387kg of metakaolin, 138kg of slag, 28 to 82kg of ordinary Portland cement, 415kg of water glass, 708kg of medium sand and 1,505kg of stones (5-20mm), wherein the modulus of the water glass is1.4; the water cement ratio of the formula is 0.37 to 0.39; the water content comprises the contained water of the water glass and the externally added water; and the amount of the externally added water is co-determined by the water cement ratio and the contained water of the water glass. Compared with the ordinary cement concrete repairing method, the method of the invention can greatly shortenthe open traffic time; the road repaired by the method of the invention can be used only 8 to 10 hours later at most; and the durability of the repairing materials and the bonding property of the newand old concrete are far superior to those of the ordinary concrete repairing material.

The invention discloses a slow breaking and quick setting cationic asphalt emulsifier, consisting of the following components: fatty acid containing 16-22 carbons, triethylene tetramine, organic solvent, antioxidant, catalyst and nonionic surfactant. In the preparation process of the slow breaking and quick setting cationic asphalt emulsifier, the asphalt emulsifier is prepared by adopting a microwave heating technology, so that the synthesis time is 2.5-3h shorter than the traditional time. When the emulsified asphalt prepared from the slow breaking and quick setting cationic asphalt emulsifier is used for a thin slurry sealing layer, the consumption is 0.8-1.2%; moreover, a pavement can be quickly set, the open traffic time can be shortened to 30-40min, and quick traffic can be realized. The asphalt content of the emulsified asphalt prepared from the slow breaking and quick setting cationic asphalt emulsifier can reach 70%. The whole synthesis process does not pollute the ambient environment.

The invention discloses an environment-friendly nonslip ultrathin seal material and a preparation method thereof and solves the problems that the asphalt pavement has water penetration, poor slip resistance, slightly pitted surface and small cracks. A stable durable seal is provided to protect the asphalt pavement, aggregate of an original asphalt pavement can be locked, oil shortage can be repaired, post-construction traffic opening time is short, little influence is caused to transportation, and the material herein has great technical significance and social significance; the preventive maintenance process used herein helps maintain pavement service level and retard maintenance time of extensive and medium repair, and save lifecycle maintenance cost.

The invention discloses a geopolymer-based cement pavement crack quick repair material, a method for preparing the same and application of the geopolymer-based cement pavement crack quick repair material. The geopolymer-based cement pavement crack quick repair material comprises, by weight, 10-25 parts of alkali activators, 45-65 parts of metakaolin, 0.1-0.5 part of silica fume, 1-2 parts of water, 0.1-0.5 part of water reducing agents, 1-5 parts of silicate cement, 1-2parts of rice husk ash, 0.1-0.5 part of rice straw fibers and 0.5-1 part of silane coupling agents. The geopolymer-based cement pavement crack quick repair material, the method and the application have the advantages of high strength, short traffic opening time, good durability, strong new-old concrete interface action and low cost.

The invention belongs to the technical field of road repairing materials, and concretely relates to a fly ash-based geopolymer mortar repairing material and a preparation method thereof. The repairingmaterial is prepared from, by weight, 32 to 45 parts of low-calcium fly ash, 8 to 12 parts of a water glass solution, 3 to 4 parts of NaOH, 1 to 2 parts of nanometer silicon dioxide gel, 1.6 to 2.5 parts of a steel fiber, 0.2 to 0.3 part of a calcium carbonate whisker, 8 to 11 parts of pure water and 64 to 90 parts of medium sand. The geopolymer mortar repairing material has the characteristics of cleanness, greenness, high strength, short open traffic time, good durability, strong interface effect of new and old concrete and good shrinkage performance.

The invention provides an aqueous polymer binder, and a colorful sealing layer mixture. The aqueous polymer binder comprises, by mass, a polymer modified petroleum resin emulsion of 15%-45%, water of15%-30%, mineral material of 10%-30%, a filler of 5%-20%, an anti-ultraviolet color paste of 1%-15%, a dispersant of 1%-5%, a bactericidal preservative of 0-2%, a thickening agent of 0.5%-5%, a defoaming agent of 0.2%-5%, and a surfactant of 1%-10%. The aqueous polymer binder possesses the rigidity, weather resistance and durability of inorganic materials, and the bonding force and flexibility oforganic high molecular materials, is capable of realizing synchronous shrinkage with pavement, possesses permanent clunging force, is aqueous, is friendly to the environment, is nontoxic, and is odourless; and cracking is not caused.

The invention discloses a novel epoxy resin bicycle lane thin layer pavement structure, which belongs to the technical field of road engineering, and which is a layered composite structure, and the structure sequentially comprises an impermeable bonding layer, an antiskid wear-resistant layer and a sealing layer from bottom to top, wherein the impermeable bonding layer is prepared from polyurethane modified epoxy resin, the antiskid wear-resistant layer is prepared from a mixture of polyurethane modified epoxy resin and quartz sand and ceramic particles, and the sealing layer is prepared fromthe polyurethane modified epoxy resin. The invention provides the novel epoxy resin bicycle lane thin layer pavement structure. The thin-layer pavement structure is light and thin in structure, simpleand convenient to construct and concise in appearance; the bonding strength of the thin-layer pavement structure and a bicycle concrete pavement slab is particularly outstanding, the synergistic effect between the pavement slab and a pavement layer is effectively improved, and the thin-layer pavement structure has the advantages of excellent impermeability, skid resistance, wear resistance, durability and the like.

The invention discloses a high-viscosity super-elastic anti-reflection crack stress absorption layer and a construction method thereof. The high-viscosity super-elastic anti-reflection crack stress absorption layer sequentially comprises a stress absorption bonding layer, a layer of fiber yarns, a stress absorption bonding layer and a layer of coarse aggregate from top to bottom, wherein the material of the stress absorption bonding layer is polymer high-viscosity asphalt, the material of the fiber yarns is alkali-free jet yarns, the coarse aggregate is crushed stone with a single particle size, the fibers which are evenly distributed and mutually in overlapped joint in a disordered direction in asphalt combining materials which are evenly spread on the upper and lower layers, and the asphalt combining materials form a network winding structure, the unique structure has higher tension and elasticity, the comprehensive mechanical properties such as tensile strength, shear strength, compression resistance, impact resistance and the like of the layer are effectively improved, the bonding force and the stability of an additionally paved pavement and an original pavement are improved, a high absorption and dispersion function for stress is achieved, the occurrence of reflection cracks can be effectively inhibited, and therefore the service life of the road is prolonged.