Preparation method of bituminous concrete

Abstract

The invention relates to a preparation method of bituminous concrete, and the preparation method uses a device assisting in the preparation of the bituminous concrete. The device assisting in the preparation of the bituminous concrete comprises a supporting base, a stirring mechanism and an overturning mechanism, wherein the supporting base is of a box body structure with an upward opening; the stirring mechanism is arranged at the middle part of the supporting base; and the overturning mechanism is mounted at the lower end of the stirring mechanism. The preparation method of the bituminous concrete can solve the problem that when bitumen materials are fed into an existing device for preparing the bituminous concrete, bitumen can not be heated and emulsified, and the bitumen materials andconcrete materials can not be thoroughly and uniformly stirred, resulting in the influence on the grading ratio of the bitumen to concrete and the influence on the viscosity of formed bituminous concrete. The preparation method of the bituminous concrete can also solve the problem that the inner wall of a stirring tank can not be scraped clean in time, and solidified bitumen is prone to be adheredto stirring blades, resulting in the accumulation of a thick bitumen layer after long-time use, the influence on the stirring quality of the bituminous concrete, low efficiency of stirring and mixing, and the influence on the using quality of the bituminous concrete.

Description

technical field [0001] The invention relates to the technical field of asphalt concrete, in particular to a method for preparing asphalt concrete. Background technique [0002] Bituminous concrete (bituminous concrete), commonly known as asphalt concrete, is artificially selected mineral materials with a certain gradation, crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials. A mixture made under strictly controlled conditions. The strength of asphalt mixture is mainly manifested in two aspects. One is the cohesive force of the cement formed by asphalt and mineral powder; the other is the internal friction resistance and locking force between aggregate particles. The huge surface area of ​​fine mineral powder makes the asphalt material form a film, thereby improving the bonding strength and temperature stability of the asphalt material; while the locking force is mainly generated between the coarse a...

AI Technical Summary

Problems solved by technology

[0005] The present invention can solve the problem that the existing asphalt concrete preparation device cannot heat and emulsify the asphalt when putting in the asphalt raw material, and cannot thoroughly mix the asphalt raw material and the concrete raw material evenly, which affects the grading ratio of asphalt and concrete, and further affects the viscosity of the formed asphalt concrete It can also solve the problem that the existing device for preparing asphalt concrete cannot scrape and clean the inner wall of the mixing tank in time, and the mixing blades are easy to adhere to the solidified asphalt, resulting in the accumulation of a thick asphalt layer after long-term use, which affects the mixing of asphalt concrete Quality, mixing efficiency is low, affecting the use quality of asphalt concrete

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