Preparation method of waste fiber recycled concrete
A technology of recycled concrete and waste fiber, which is applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of low feeding efficiency, fiber pulling and feeding, and low tensile strength, and achieve a solution The effect of low feeding efficiency
Active Publication Date: 2021-02-09
河北雄安昝岗混凝土有限公司
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Problems solved by technology
The main disadvantages of cement stone, mortar and concrete are: low tensile strength, small ultimate elongation, and brittleness. These shortcomings can be overcome by adding fibers with high tensile strength, high ultimate elongation, and good alkali resistance.
[0003] The following problems often exist in the process of processing waste fibers. First, because the waste fibers are often entangled together, it is often difficult to pull and feed the fibers when the fibers are cut to length. It is often difficult to cut effectively; 2. When the material is automatically loaded through the transmission belt, the waste fiber is often stuck to the outer end of the transmission belt, so that the feeding efficiency is not high
Method used
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[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0030] Such as Figure 1 to Figure 6 As shown, a method for preparing waste fiber recycled concrete uses fiber chopping equipment, and the fiber chopping equipment includes a base 1, an extrusion chopping device 2 and an auxiliary feeding device 3, and the fiber chopping equipment is used for waste The process of fiber processing also includes the following steps:
[0031] S1. Segmentation operation: Preliminary segmentation of the collected waste fiber clusters by manual or mechanical assistance;
[0032] S2. Shredding operation: the split waste fibers are shredded by fiber shredding equipment;
[0033] S3. Screening operation: selecting materials for the chopped waste fibers, and performing secondary shredding on fibers that do not meet the size...
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The invention relates to a waste fiber recycled concrete preparation method which uses fiber chopping equipment, the fiber chopping equipment comprises a base, an extrusion chopping device and an auxiliary feeding device, wherein the extrusion chopping device is arranged at the upper end of the base, and the auxiliary feeding device is arranged at the rear end of the base. According to the invention, the fibers are shredded by utilizing the flexibility of the fibers and adopting a method of extruding the fibers to protrude out of the grooves, so that the problem that the waste fibers which arewound together are difficult to effectively cut in a common cloth cutting mode is solved; when the feeding belt operates, fibers adhering to the outer end face can be scraped off, and therefore the problem that the feeding efficiency is not high due to the fact that waste fibers adhere to the outer end of the conveying belt is solved.
Description
technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a method for preparing waste fiber regenerated concrete. Background technique [0002] Fiber concrete is a general term for composite materials composed of fibers and cement base materials (cement stone, mortar or concrete). The main disadvantages of cement stone, mortar and concrete are: low tensile strength, small ultimate elongation, and brittleness. Adding fibers with high tensile strength, high ultimate elongation, and good alkali resistance can overcome these shortcomings. The cement-based composite material composed of cement slurry, mortar or concrete as the base material and fiber as the reinforcing material is called fiber concrete. [0003] The following problems often exist in the process of processing waste fibers. First, because the waste fibers are often entangled, it is often difficult to pull and feed the fibers when the fibers are cut to length. I...
Claims
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IPC IPC(8): C04B20/02C04B18/04C04B28/00C04B26/00B02C19/00B02C23/08
CPCB02C19/0056B02C23/08C04B18/0427C04B20/02C04B20/026C04B26/00C04B28/00Y02W30/91
Inventor 丁怿
Owner 河北雄安昝岗混凝土有限公司