Continuity testing method of cement mortar for 3D (Three Dimensional) printing of building

Abstract

The invention provides a continuity testing method of cement mortar for 3D (Three Dimensional) printing of a building. A device for the continuity testing method is vertically arranged and comprises apushing rod (1) in an extruding barrel and a rear cover (6) which sleeves the pushing rod (1), wherein the pushing rod (1) is pushed into the extruding barrel (2); a gasket (5) is put into the extruding barrel (2) before the pushing rod (1) is put; the rear cover (6) is fixed at the upper end of the extruding barrel (2); the extruding barrel (2) is fixed on a fixed bracket (4); a straight ruler (3) is fixed on the fixed bracket (4); a zero scale line of the straight ruler (3) and the lower end of an extruding nozzle of the extruding barrel are located on the same horizontal line. Compared with the prior art, the cement mortar for the 3D printing of the building is tested and a quantification numerical value index related to continuity performance can be obtained; the continuity of the mortar for the 3D printing is accurately evaluated. The continuity testing method has the advantages that the proportion of the cement mortar for the 3D printing is easy to design, the blending time of amaterial before printing is shortened, wastes of the material are reduced and the working efficiency is improved.

Description

technical field [0001] The patent of the present invention relates to the fields of building materials and building construction related to 3D printing, and in particular to a test for the continuous performance of building 3D printing cement mortar. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, is a modern manufacturing technology that integrates cutting-edge technologies in information and software, mechanical numerical control engineering, material science, laser technology and other disciplines. It has digital manufacturing, dimensionality reduction manufacturing, stacking manufacturing, Advantages of direct manufacturing and rapid manufacturing. The combination of cement-based materials and 3D printing technology is applied in the field of engineering construction to form architectural 3D printing technology. Architectural 3D printing technology has revolutionized traditional construction techniques and construct...

AI Technical Summary

Problems solved by technology

[0006] The current test methods for testing and characterizing the performance of traditional building cement-based materials (such as slump, consistency, fluidity, etc.) cannot completely and accurately test the continuity of building 3D printing materials

The performance testing of building 3D printing cement-based materials at home and abroad is still in the exploratory stage, and there is no testing method that can be directly applied to continuity testing

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