Abstract
The sharply continental climate of the Irkutsk region is characterized by wide temperature intervals throughout the year. The repeated cyclicity of freezing and thawing of building materials in the water-saturated state influences the change in technical characteristics and the durability of concrete products and structures. The concrete products’ features in such climatic conditions create the need for the production of concretes with improved indicators of physical and mechanical properties. The effect of modifying additives on the technological characteristics of sulfur concrete is established. The effect of all elements of sulfur concrete on its strength and frost resistance. The composition of sulfuric concrete is obtained, which meets all the requirements and also has high strength and increased frost resistance. Formulations with a certain ratio of structural sulfuric concrete mixtures were developed. As a result of the use of technical sulfur in the composition of concrete products, the problem of utilizing annually accumulating reserves of technical sulfur is partially solved. The strength properties of sulfuric concretes easily compete with high-quality brands of concrete, special types of concretes that have in their composition additives.
Highlights
At present, the need to use concrete with increased strength indexes, resistance to aggressive media, and increased frost resistance has increased
The sharply continental climate of the Irkutsk region is characterized by a wide temperature interval throughout the year
As a result of the frost-resistance test, the standard method is based on the normative documentation [19], samples based on the sulfur binder correspond to the F400 frost resistance grade, and have a very high resistance to cement in comparison with cement based on the same grade strength (Table 2)
Summary
The need to use concrete with increased strength indexes, resistance to aggressive media, and increased frost resistance has increased. The repeated cyclicity of freezing and thawing of building materials in the water-saturated state influences the change in technical characteristics and reduces the durability of concrete products and structures. This forces each year to allocate financial resources for the repair of transport, industrial, and civil. Analysis of Russian and foreign literary sources shows that sulfur building materials are widely used in various areas of construction Such materials are especially promising in the manufacture of structural parts and structures, during which the increased requirements for resistance to various aggressive environments, frost and atmospheric resistance, and water impermeability are required. The main task of development is the selection of the composition of sulfur concrete, which retains technical characteristics during the entire period of its operation [9, 10]
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