High-performance deformation bamboo tendons and manufacturing technology thereof

Abstract

The invention discloses high-performance deformation bamboo tendons and a manufacturing technology thereof. The manufacturing technology comprises the following steps that a, pretreatment of bamboo iscarried out; b, bamboo concave rib cutting is carried out; c, primary high-temperature treatment is carried out, specifically, the bamboo is placed in a high-temperature box and heated up to 170 DEGC-200 DEG C with a heating rate of 4-5 DEG C / min, and the temperature is constant for 3h-4h; d, primary steam curing treatment is carried out, specifically, steam curing treatment of the bamboo is carried out until the temperature drops down to the room temperature; e, anticorrosive treatment is carried out; f, performance reinforcement treatment is carried out, specifically, reinforced fibers arebonded to the bamboo; g, secondary high-temperature curing treatment is carried out, specifically, the bamboo is placed in the high-temperature box and heated up to 80 DEG C-100 DEG C with a heatingrate of 1-2 DEG C / min, and the temperature is constant for 3h-4h; h, secondary steam curing treatment is carried out, specifically, the steam curing treatment of the bamboo is carried out until the temperature drops down to the room temperature, and the water content of the bamboo is made to reach 6%-9%. According to the manufacturing technology, the bonding capacity between bamboo tendons and concrete is enhanced, the corrosion resistance, durability and stability of the bamboo tendons are further improved, and mechanical properties of the bamboo tendons are improved greatly, and the obtainedbamboo tendons are convenient to store.

Description

technical field [0001] The invention belongs to the field of civil engineering materials, and relates to a high-performance deformed bamboo bar and a manufacturing process thereof. Background technique [0002] With the development of industrialization and urbanization, the construction industry is developing rapidly, and the demand for steel materials, the main material of building structures, is increasing. Mineral resources are important non-renewable resources on the earth. Mineral resources will gradually be depleted due to excessive demand and blind and super-intensive mining consumption, and the "three wastes" in the production process of steel bars will cause environmental pollution and ecological damage. my country's iron ore resources have long been unable to meet the needs of my country's huge metallurgical industry. Every year, 60% of the demand is imported from Australia, Brazil, Peru, India and other places, which has also become a major means for resource-occu...

AI Technical Summary

Problems solved by technology

[0004] However, the bonding performance between bamboo reinforcement and concrete is poor, and it is easy to slip under load, and even the bamboo reinforcement is pulled out. If the performance of bamboo reinforcement concrete can be improved by improving the bonding performance of bamboo and concrete in bamboo reinforcement concrete , will be beneficial to the application of bamboo reinforced concrete to more engineering practices, in line with the concept of environmental protection and sustainable development

[0005] At present, there are still the following problems and deficiencies in bamboo tendons: 1. Bamboo is rich in cellulose, hemicellulose, sugar, fat, protein, etc. These ingredients are nutrients for moths or fungi, and the existence of moths and bacteria will cause bamboo corrosion. Deterioration, and affect the mechanical properties and durability of bamboo tendons; 2. The internal stress of the bamboo itself will be generated during the growth process or the deformation of the external factors (stress, humidity change, etc.), if it is not eliminated, it will affect the mechanical properties of the bamboo It has a greater impact, and even causes cracks in the bamboo; 3. The fiber holes of the bamboo are not dense, and water stains are easy to soak into the bamboo, which will cause the size of the bamboo to be unstable, and may be accompanied by deformation, which will affect the utilization of the bamboo; 4. Bamboo Although high temperature treatment has the advantages of reducing the hygroscopicity of bamboo and improving the dimensional stability of bamboo, it will cause the mechanical properties of bamboo to decrease, and the brittleness of bamboo will increase, which will affect the utilization of bamboo, and the bamboo after high temperature treatment must be further processed; 5 After the bamboo reinforcement is impregnated with the resin matrix adhesive, the bonding force between the bamboo reinforcement and the concrete will be reduced

Images