Bionic concrete coarse aggregate based on photo-curing 3D (three-dimensional) printing, preparation method of aggregate and application of aggregate

A 3D printing, coarse aggregate technology, applied in manufacturing, additive processing, etc., can solve the problems of lack of centralized management and advanced production mode, inability to form large-scale industrial mining, and inability to guarantee the quality of aggregate production. Fast printing speed, accurate molding, and increasing the effect of mechanical bite
CN109734342AInactive Publication Date: 2019-05-10SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2019-05-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a bionic concrete coarse aggregate based on photo-curing 3D (three-dimensional) printing, a preparation method of the aggregate and an application of the aggregate. The bionicconcrete coarse aggregate takes photo-curable resin as a raw material, is prepared by a 3D printing method and comprises a main structure and bionic projection structures positioned on the surface ofthe main structure. Compared with the prior art, the bionic concrete coarse aggregate based on the photo-curing 3D printing has the advantages that grain shapes are mellow and full, the workability and durability of concrete are theoretically enhanced, mechanical interlocking of the aggregate and cement paste is enhanced by the bionic projection structures distributed on the surface of the main structure, and the interface bonding power of high-molecular polymers and cement-based inorganic nonmetallic materials can be enhanced. The concrete coarse aggregate prepared by photo-curing 3D printingis accurate to form, stable in quality and high in printing speed and has the great potential of replacing natural crushed stone aggregate.
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Description

technical field

[0001] The invention relates to the field of design and preparation of concrete coarse aggregate, and provides a bionic concrete coarse aggregate based on light-curing 3D printing and its preparation method and application. Background technique

[0002] With the development of society, the demand for concrete in the construction industry is increasing. The production and consumption of concrete in China rank among the top in the world, consuming a large amount of resources and energy every year. Aggregate is one of the raw materials for concrete production, accounting for more than half of the proportion of concrete materials. With the gradual increase in the annual demand for concrete, the demand for natural sand and stone resources as aggregates is also increasing. According to the data provided by the China Aggregate Association, the proportion of steel, cement and sand and gravel aggregate in China's concrete raw materials is 1:6:36. The construction o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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