Shcherban' Evgenii M, Stel'makh Sergey A, Mailyan Levon R, Beskopylny Alexey N, Smolyanichenko Alla S, Chernil'nik Andrei, Elshaeva Diana, Beskopylny Nikita
Department of Engineering Geology, Bases, and Foundations, Don State Technical University, 344003 Rostov-on-Don, Russia.
Department of Unique Buildings and Constructions Engineering, Don State Technical University, 344003 Rostov-on-Don, Russia.
Materials (Basel). 2024 Apr 19;17(8):1889. doi: 10.3390/ma17081889.
Current regulatory documents and the scientific literature lack a theoretical framework and practical guidance for calculating centrifugally compacted reinforced concrete structures, taking into account the variatropy of their structure and the material's characteristics across the section. A problem related to this research lies in the need to form a systematized, theoretical, and practical knowledge base about variatropic concretes, the importance of which has been proven by various scientists without, to date, the creation of a unified scientific methodological base. The importance of this study is linked to the need for the world's construction projects and processes to transition to the most economically, materially, and resource-efficient types of building structures, which, of course, include structures made of variable-type concrete. This study's objective is to fill these scientific and engineering gaps. The purpose of this study was to systematize the existing knowledge base about the technology, structure formation, and properties of variatropic concrete, using an analytical review of previously conducted studies by ourselves and others, both in Russia and abroad. A theoretical justification for the formation of the structure of variatropic materials is presented. An analysis of the basic physical and mechanical properties of variatropic concretes is carried out and the features of their microstructures are considered. The main structures created using centrifugation technology are considered. Variatropic concrete has an increased amount of mechanical characteristics compared to traditional concrete, on average by up to 45%. The durability of variatropic concrete is improved, on average, by up to 30% compared to conventional concrete.
当前的监管文件和科学文献缺乏一个理论框架和实践指导，用于计算离心压实钢筋混凝土结构，同时考虑到其结构的变异性以及材料在截面中的特性。与这项研究相关的一个问题在于，需要形成一个关于变异性混凝土的系统化、理论化和实践化的知识库，尽管许多科学家已经证明了其重要性，但迄今为止尚未创建一个统一的科学方法基础。这项研究的重要性与全球建筑项目和流程向最经济、材料和资源高效的建筑结构类型转变的需求相关，当然，这其中包括由可变型混凝土制成的结构。本研究的目的是填补这些科学和工程空白。本研究的目的是通过对我们自己以及俄罗斯国内外其他人先前进行的研究进行分析综述，将关于变异性混凝土的技术、结构形成和性能的现有知识库系统化。提出了变异性材料结构形成的理论依据。对变异性混凝土的基本物理和力学性能进行了分析，并考虑了其微观结构的特点。研究了使用离心技术创建的主要结构。与传统混凝土相比，变异性混凝土的力学特性平均增加了高达45%。与传统混凝土相比，变异性混凝土的耐久性平均提高了高达30%。
