Abstract
Improvement of rural settlements is an urgent task to create attractive living conditions, preserve cultural traditions, develop ethnic tourism and create a unique look for the villages and villages of the Don region. It is advisable to make small architectural forms of concrete, which is a versatile and durable material that allows any designer’s creative idea to be realized. The performed studies have established that it is rational to produce small architectural forms from fine-grained self-compacting mixtures with screenings of stone crushing of rocks of the Don region. The experiments have shown that in a fine-grained self-compacting mixture, the optimal dosage of ordinary limestone crushing screenings is 20%, and sandstone crushing screenings can reach 33%. This is explained by an increase in the liquefaction effect of the anionic superplasticizer due to its lower adsorption on fine particles of sandstone grains, which have a predominantly negative surface charge. The mobile production of small architectural forms from fine-grained self-compacting concretes with stone crushing screenings on the territory of crushing and sorting plants will allow organizing a promising business and creating new jobs for residents of rural settlements.
Highlights
In the Russian Federation, for the implementation of the national project "Housing and Urban Environment", urban centers for the development and implementation of large-scale smart projects in the field of a comfortable urban environment have been created in many megacities
The experiments have shown that in a fine-grained self-compacting mixture, the optimal dosage of ordinary limestone crushing screenings is 20%, and sandstone crushing screenings can reach 33%. This is explained by an increase in the liquefaction effect of the anionic superplasticizer due to its lower adsorption on fine particles of sandstone grains, which have a predominantly negative surface charge
The presence of a large number of fine particles, the specific surface of which is practically equal to the specific surface of the cement, significantly increases the water consumption to ensure the required workability of the concrete mixture
Summary
In the Russian Federation, for the implementation of the national project "Housing and Urban Environment" (within the framework of the federal programs "Formation of a Comfortable Urban Environment" and "Smart City"), urban centers for the development and implementation of large-scale smart projects in the field of a comfortable urban environment have been created in many megacities. To form a comfortable living environment, various design objects are required, a special place among which is occupied by small architectural forms (SAF), which combine functionality and aesthetic appeal at the same time. Small architectural forms are subdivided into three types by purpose: utilitarian (urns, lanterns, fences, non-standard benches, parking stops), decorative (art objects, fountains, flower arrangements, artificial reservoirs), health-improving (sports facilities). Despite the variety, all products should be uniform in style, since, filling the space and being in the field of view of a person, they shape his aesthetic taste and contribute to a harmonious coexistence with the environment
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