Авторы:
Издательство:
Дата издания
05.06.2025На каком языке издана
Область исследования
Тип исследования
Аннотация (краткое описание)
The purpose of this study is to experimentally substantiate the effect of the concrete mixing methods on the physical and mechanical properties of expanded clay concrete used in modular construction. In the framework of research two technological approaches of mixing are compared: traditional (according to GOST) and alternative method of "suspension concrete". The study was conducted on identical compositions of lightweight concrete with expanded clay aggregates with fractions of 0-10 mm at a constant dosage of cement, sand, water and chemical admixtures. Control samples were produced for each mixing method and compressive strength tests were conducted at the ages of 1, 3, 7 and 28 days to determine the average density of the samples. The results show that changing the order of introducing the components has a significant impact on material structure formation. The use of the suspension mixing method, in which a cement-water suspension is formed before the introduction of aggregates, provides an increase in the strength of expanded clay concrete by up to 19% on day 28 compared to traditional technology. In addition, there was an improvement in the uniformity and surface quality of samples. At the same time, workability and the density of the concrete mixture remained at the same level. Therefore, suspension mixing can be considered an effective way to strengthen the structure of expanded clay without changing its composition, which is particularly important in industrial production of precast products. The obtained data are of practical significance and can be used to improve production technologies for lightweight concrete with enhanced performance properties.DOI
https://doi.org/10.51488/1680-080X/2025.2-13Тип публикаций
Данный документ располагается в коллекциях
Публикации в КОКСОН