Bamboo glue sleeper and preparation method thereof

Abstract

The invention discloses a bamboo glue sleeper and a preparation method thereof. The preparation method comprises the following steps: (1) selecting a raw material; (2) cutting off the raw material according to a specified length, sectioning the cut-off raw material into strips, removing tabasheer and the bamboo outer skin, and processing the strips into thin bamboo skin pieces; (3) carrying out carbonization treatment on the thin bamboo skin pieces obtained in the step (2); (4) grinding the carbonized thin bamboo skin pieces into a siamesed fiber state; (5) putting the material obtained in the step (4) in phenol glue to carry out pressurization gumming; (6) carrying out automatic dehumidification on the material obtained in the step (5); (7) pressing and curing the material obtained in the step (6) into a slab; and (8) sawing the periphery width of the slab by 5 cm to eliminate the fringe effect during compression. The bamboo glue sleeper is low in carbon emission, environment-friendly and safe, does not deform when being affected with damp due to water, and is antiseptic, prevented from damage by worms, antiflaming and suitable for being used under a complex condition.

Description

technical field [0001] The invention belongs to the technical field of urban rail transit and railway traffic, and in particular relates to a bamboo rubber sleeper and a preparation method thereof. Background technique [0002] Ordinary reinforced concrete sleepers have the advantages of high bearing capacity, strong stability, and good line smoothness, but have the following disadvantages: the processing, laying, and tensioning process of the steel skeleton of ordinary reinforced concrete sleepers consume a lot of labor and equipment, high cost, and complicated procedures . The production, laying and tensioning process of the steel skeleton is time-consuming, high in cost, and the quality is not easy to control. Ordinary reinforced concrete sleepers have high rigidity and poor ductility. The position of the bearing platform of the reinforced concrete sleeper cannot be reinforced horizontally, and the position of the retaining shoulder is easily damaged by shearing. Ordin...

AI Technical Summary

Problems solved by technology

[0002] Ordinary reinforced concrete sleepers have the advantages of high bearing capacity, strong stability, and good line smoothness, but have the following disadvantages: the processing, laying, and tensioning process of the steel skeleton of ordinary reinforced concrete sleepers consume a lot of labor and equipment, high cost, and complicated procedures

Therefore, ordinary railway sleepers are too thick, heavy, and costly; at the same time, in urban rail transit, it is difficult to maintain large-scale machinery, because the space is limited, and large-scale machinery cannot be used, so the labor intensity is high

Traditional wooden sleepers have the following disadvantages: scarcity of high-quality hard wood, high cost, uneven rigidity and strength of wooden sleepers, need to adopt tar anti-corrosion technology, pollute the environment, such as the EU will ban the use of tar anti-corrosion methods in 2018, low wood strength and other issues

[0003] In recent years, composite sleeper is a new type of sleeper structure, which is mainly produced by using renewable plastics, waste tires or polyurethane materials. It has the advantages of good elasticity, environmental protection and green, but has the following disadvantages: the density of composite sleeper materials is low, resulting in the quality of composite sleepers Low, resulting in low vertical and horizontal resistance of the ballast bed; high production and installation costs

Poor resistance to temperature and environmental stress, easy to crack, especially fasteners and bolts with insufficient pull-out resistance