A 3D Reconstruction Method of Concrete Mesostructure Model

Abstract

The invention belongs to the technical field of concrete model reconstruction, and relates to a method for three-dimensional reconstruction of a concrete mesostructure model. The concrete section grinding distance is controlled by precision screws, and continuous section images with smaller layer spacing are obtained by repeatedly performing concrete grinding and photographing, so that During the reconstruction of the 3D model, the calculation amount of the difference between the image layers is reduced. When the continuous section image is acquired, the alignment of the section image in the Z-axis direction is considered, and the obtained continuous section image has a high degree of calibration. The numerical simulation research of its interface layer provides a model basis, the extracted different phases have a high degree of fitting, and the established three-dimensional numerical model has high accuracy; its principle is scientific and reliable, and the continuous section image acquisition method is simple, feasible, and cost-effective. Compared with the model established by CT scanning images, the three-dimensional model of the visual structure suffers less image interference, and can truly reflect the internal structural characteristics of concrete and the distribution of each phase structure.

Description

Technical field:[0001]The present invention belongs to the field of concrete model reconstruction techniques, and it is related to a three-dimensional reconstruction method of concrete, which can quickly and accurately acquire a multiphase material small pitch continuous profile image.Background technique:[0002]Concrete (referred to as) refers to the collective of the engineering composites of the aggregate glue by gelling materials, concrete is made of crude aggregate, fine aggregate, cement hydrate, unsolved cement particles, pores and cracks. The non-homogeneous composite material of the composition; with water (can contain additional plus and blend), it is proportional to cement concrete, also known as ordinary concrete, widely used in civil engineering, often in civil engineering Concrete is considered macro, homogeneous, isotropic materials, which can solve some specific problems, but do not consider the desirable composition of concrete materials and the complexity of physica...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem that the CT scanning image is interfered by factors such as artifacts or noises in the current three-dimensional reconstruction technology, resulting in large errors in the extraction of different phases of concrete materials, and to provide a method for extracting various phases of concrete materials based on true-color concrete profile images. and 3D reconstruction methods

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