Abstract
Artificial stone has been one of the most common materials in construction for a long time by now. Despite the variety of types of concrete, the composite is in constant motion of development and improvement. The common use of high strength composite is for the construction of high-rise buildings or projects complex in geometry.This article suggests preparing high-strength cementitious composites by complex chemical activation using chemical admixtures in combination with reactive aggregates, as they give good hydration (hardening) of concrete. Research results confirm that this practice of complex chemical activation of cement gives high-strength concrete with better strength, deformation and durability properties.
Highlights
Current building science develops towards the construction of unique and complex buildings and structures, as well as towards their renovation, so the use of high-strength binders and concretes made with them is essential
Such an application calls for the use of high-strength concrete with a surface enhanced against abrasion, which has good crack resistance, and resistance to aggressive media, high deformation and durability properties
High-strength concrete of new generation has a wide range of properties, so they are often broken into two blocks
Summary
Current building science develops towards the construction of unique and complex buildings and structures, as well as towards their renovation, so the use of high-strength binders and concretes made with them is essential.Because concretes have a range of unique properties, they are widely applied in the construction of essential structures, such as high-rise buildings, road and airfield coverings, transmission towers, and special facilities.Such an application calls for the use of high-strength concrete with a surface enhanced against abrasion, which has good crack resistance, and resistance to aggressive media, high deformation and durability properties.High-strength concrete of new generation has a wide range of properties, so they are often broken into two blocks.Parameters of a fresh concrete mixture compose the first block [22]: consistency with cone flow diameter range 65 to 70 cm; compaction degree of 1.0 to 1.4; flow properties remaining for not less than 3 to 4 hours; minimal delamination; air content less than 1%.The second block houses characteristics of hardened composite [23]: compressive strength at range of 50 to 100 MPa; flexural strength of at least 4 MPa; density and pore structure; high abrasion resistance; frost resistance above F400 and water resistance above. Current building science develops towards the construction of unique and complex buildings and structures, as well as towards their renovation, so the use of high-strength binders and concretes made with them is essential. Because concretes have a range of unique properties, they are widely applied in the construction of essential structures, such as high-rise buildings, road and airfield coverings, transmission towers, and special facilities. Such an application calls for the use of high-strength concrete with a surface enhanced against abrasion, which has good crack resistance, and resistance to aggressive media, high deformation and durability properties.
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