Study of concrete properties based on crushed stone sand mixture and fiber of fly ash of thermal power plants

Abstract

The study aims to optimize the composition of the main composite, the components of which, in their joint presence, make it possible to obtain the most significant positive synergistic effect. The authors of this article used the fibers of fly ash from thermal power plants as a finely dispersed component added to the crushed stone sand mixture. The result of the study was a high-strength corrosion-resistant material consisting of a crushed stone sand mixture (CSSM) with the addition of the fibers of fly ash. The authors applied the thermogravimetric and standard methods to study and determine the performance and strength characteristics of the obtained material. The combined effect of a complex organic-mineral modifying additive and the cement with the fibers of fly ash provided a compacted and reinforced structure of cement stone. An optimal binder composition was developed, consisting of cement and fiber of fly ash. The authors of this article examined the physical-mechanical and structural-mechanical properties of a CSSM of fine-grained concrete reinforced with a complex additive of cement, fibers of fly ash, and a superplasticizer. The study also provided technological solutions for manufacturing a functional mixture of fine-grained concrete based on the developed complex organic-mineral additive.

Дослідження Щодо Застосування Летючої Золи В Будівництві Доріг Та Аеропортів

“…Earlier, it was because mainly acidic fly ash was used as a hydraulic admixture in heavy concrete [4]. However, work in recent years has shown that basic fly ash can also be used in concrete mixtures [5].…”

Establishment and application of the environment evaluation model for beneficiation plant

“…Bhadani [2] studied the dust production point of the concentrator and proposed a control scheme, Rohollah Fallah Madvari [3] The analyzed the causes and hazards of noise in the broken miners. Bieliatynskyi Andrii [4] noted the impact of noise and dust in the workshop environment on employees There are.noise, dust, microclimate and many other influence factors in the workshop working environment,but few studies concentrate on the workshop environment from the perspective of multiple factors Wen Fu [5] considered dust, noise and toxic gas were the main factors which damage the health of employees in beneficiation plants after investigated. Syurin Sergei A [6] studied the development trend of occupational diseases,he considered that it is urgent to establish a comprehensive evaluation method which covers all relevant factors in the environment to comprehensively evaluate the workshop environment.…”

Застосування Золи-Виносу У Виробництві Бетону: Комплексне Дослідження Екологічних Переваг Та Властивостей Матеріалу

“…Therefore, it is most suitable to introduce this waste from heat and power engineering directly at the concrete plant. In road construction, when mak-ing road slabs or concreting directly on the road or airfield [4], the concreting of structures with the help of concrete pavers is widely used, significantly increasing labor productivity, reducing time, and improving the quality of construction. Concretes from high-quality concrete mixtures are used, the main problem of which is to ensure the cohesion of mixtures and reduce heat generation during curing, which can be achieved by partial replacement of cement with fly ash.…”