6 results about "Road engineering" patented technology

The invention relates to the technical field of modified emulsified asphalt for road engineering, and particularly relates to modified emulsified asphalt for a superthin wearing course. The emulsified asphalt is prepared from the following components in percentage by weight: 45.0-68.0 percent of asphalt, 3.0-4.0 percent of an emulsifying agent, 0.25-0.45 percent of a cationic quick breaking emulsifying agent, 0.5-2.0 percent of a stabilizing agent, 1-5 percent of auxiliary and the balance of water. By adopting the scheme, the modified emulsified asphalt for a superthin wearing course is prepared, has a solid content of more than 67 percent, is quick in emulsion breaking speed, is capable of generating a relatively thick asphalt film after emulsion breaking, and has excellent adhesive performance and waterproofing performance, wherein the dynamic viscosity at 60 DEG C of evaporated residues of the emulsified asphalt is more than or equal to 1800Pa.s.

The invention relates to a ground marking induction coating coating for unmanned vehicles and a preparation process thereof, belongs to the technical field of road engineering, and mainly solves the technical problems of incapability of meeting control requirements, high laying labor intensity, high cost and the like in the existing ground marking for unmanned vehicles. The technical scheme of the invention is as follows: the ground marking induction coating coating for the driverless vehicle is provided; wherein the ground marking induction coating coating is prepared from 10 to 20 parts by weight of resin, 2 to 5 parts by weight of pigment, 25 to 40 parts by weight of calcium carbonate, 10 to 20 parts by weight of quartz sand, 2 to 4 parts by weight of paraffin, 15 to 20 parts by weight of glass beads, 1.5 to 2 parts by weight of dioctyl phthalate, 1 to 1.5 parts by weight of EVA hot melt adhesive and 10 to 40 parts by weight of magnet powder. The coating has the advantages of pressure resistance, wear resistance, pollution resistance, convenience in construction and spraying and the like.

The invention discloses a composite solid waste pavement base binder and a preparation method thereof, and belongs to the technical field of road engineering. The composite solid waste pavement base binder is prepared by mixing pretreated alkaline ardealite powder, fly ash, slag powder and cement. The industrial waste phosphogypsum slurry raw material is subjected to alkaline pretreatment to obtain the alkaline phosphogypsum powder, the alkaline phosphogypsum powder is mixed with the solid waste such as the fly ash and the slag and the cement, and the mixture is applied to a semi-rigid base material to be used as a gelling binder, so that an effective utilization way of the industrial waste residue material is provided, and the utilization rate of the industrial waste residue material is increased. Moreover, the resource utilization rate of industrial waste residue materials can be increased, and the problem of environmental pollution caused by stockpiling and discharging of industrial waste residues is solved. And the prepared pavement base binder can improve the strength of the pavement base, reduce the shrinkage cracking effect of the pavement base, reduce the cement consumption, reduce the cost, and achieve the purposes of recycling solid wastes, and being economical and environment-friendly.

The invention belongs to the field of road engineering, in particular to a construction site man-vehicle separation guide device. The construction site man-vehicle separation guide device comprises two storage boxes, wherein the two storage boxes are connected with a sleeve connector and a plug connector in a sealed mode respectively; a first air bag is fixedly connected between the two storage boxes; a plurality of second air bags which are parallel to one another and distributed at equal intervals are connected to the first air bag in a sealed mode, and the two ends of the first air bag areconnected with the sleeve connector and the plug connector in a sealed mode respectively; once not in use, the sleeve connector is separated from the plug connector; air in the first airbag and the second airbag flows out; the first air bag and the second air bag can be contracted and folded; the first air bag and the second air bag are folded and placed in the two storage boxes; the magnetic attraction plates on the end faces of the inner sides of the two storage boxes are fixed through mutual magnetic attraction; storage of the first air bag and the second air bag is achieved; the folded device is small in size and convenient to transport and store; the first air bag and the second air bag are protected; and damage to the first air bag and the second air bag during transport and storageis prevented.