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混凝土中孔洞的分布情况,即孔洞的大小、数量以及分布形式等对混凝土的物理性能、力学性能及耐久性都有显著的影响。由于混凝土的原材料、生产工艺、施工工艺和工作环境等方面的原因,孔洞特征各不相同,对混凝土所产生的影响也不尽相同。X射线计算机断层扫描成像技术能准确地分析混凝土中孔洞的分布,明确孔洞对混凝土性能的危害,捕捉实验过程中孔结构的演变成为现实。
The distribution of holes in concrete, that is, the size, number and distribution of holes have a significant impact on the physical properties, mechanical properties and durability of concrete. Due to the concrete raw materials, production technology, construction technology and work environment and other reasons, the hole characteristics vary, the impact on the concrete are not the same. X-ray computed tomography can accurately analyze the distribution of holes in concrete, clarify the damage of holes to the performance of concrete, and make it possible to capture the evolution of pore structure during the experiment.