Bagged high-viscosity asphalt as well as production method and device thereof

Abstract

The invention belongs to the technical field of pavement materials, and in particular relates to bagged high-viscosity asphalt as well as a production method and device thereof. The bagged high-viscosity asphalt comprises the components including road asphalt, polymer, petroleum resin, aromatic oil (or rubber oil), polyethylene wax, an antioxidant, an initiator and a grafting agent. The production method comprises the following steps of weighing the components by using a weighing system; adding the components into a screw extruder; mixing, shearing and extruding at a certain temperature; preparing a high-viscosity asphalt product through a temperature regulator and a pressure regulator; and treating the high-viscosity asphalt product in a finished product tank, and finally filling the product into packaging bags. When in use, the bagged high-viscosity asphalt is put into an asphalt melting pot of which the temperature is 160 DEG C and is driven into a stirring cylinder in an asphalt concrete stirring plant connected with the asphalt melting pot through an asphalt pump after being completely melted, and a graded stone material is added into the stirring cylinder to prepare a high-viscosity asphalt mixture. The preparation process of the bagged high-viscosity asphalt is advanced and simple to operate, the product is excellent in performance and convenient to use and transport, and the performance index of the prepared high-viscosity asphalt mixture can completely meet the technical requirements for paving drainage asphalt pavements and steel bridge surface asphalt pavements.

Description

technical field [0001] The invention belongs to the technical field of pavement materials, and in particular relates to a high-viscosity asphalt and its production method and device. Background technique [0002] High-viscosity asphalt is required for drainage pavement, cement pavement plus asphalt pavement (referred to as "white plus black"), and steel structure bridge deck paving asphalt concrete. [0003] Drainage asphalt pavement is a kind of high void ratio asphalt pavement with drainage system. Its main function is: in rainy days, due to its high connecting gap and vertical and horizontal drainage measures, the road surface will not accumulate water, and the water film around the mixture particles will not be too thick, thus preventing side slipping and anti-glare , waterproof fog and other functions, reducing the probability of traffic accidents in rainy days; in addition, this kind of coarse aggregate on the road surface is embedded in each other, and the skeleton e...

AI Technical Summary

Problems solved by technology

The above production methods 1 and 2 all require a relatively large set of equipment, transportation of special vehicles and repeated heating, which not only consumes a lot of energy and is easy to cause aging of materials, but also has complex processes, long production cycles, and relatively low efficiency.

The granular high-viscosity asphalt produced by method 3 has no direct and necessary correlation with the quality indicators of high-viscosity asphalt mixture due to its product quality technical indicators, and the quality and technical indicators must be measured in liquid high-viscosity asphalt. To determine whether qualified high-viscosity asphalt mixture can be prepared, therefore, granular high-viscosity asphalt is rarely used in practice

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