Material suitable for 3D printing concrete shear wall and preparation method of material

Abstract

A preparation method uses Portland cement, sulphoaluminate cement, silica fume, quick lime, 20-40-mesh quartz sand, 50-80-mesh quartz sand, a water reducing agent, a retarder, dispersible latex powder, polypropylene short fibers and water as raw materials, varieties of gelling materials, admixtures, aggregate and additives are adjusted, and therefore the 3D printing concrete material having the advantages of having high mechanical strength, good initial fluidity, convenient printing construction, achieving requirements for strength and durability of concrete of high-rise buildings, ensuring the collapse resistance and aesthetics of printed components, and being suitable for cast-in-situ construction operation is prepared.

Description

technical field

[0001] The invention relates to the technical field of cement-based building materials, in particular to a material suitable for 3D walls with a shear force greater than concrete and a preparation method thereof. Background technique

[0002] With the advancement of science and technology and the development of technology, 3D printing technology has advanced by leaps and bounds and entered various fields of the manufacturing industry. 3D printing technology refers to the use of a printer that can "print" a real three-dimensional object, using layered processing and superposition molding to add materials layer by layer to finally create a three-dimensional object. Since there are many forms of specific stacking, a variety of 3D printing processes have been produced, and the types of materials that can be printed by each process are different, but the basic principle is the same, that is, "layer-by-layer manufacturing, layer-by-layer stacking", also known as "...

Images