Modification of Concrete with Chemical Additives
摘要
More deep chemical interactions mechanism research with the subsequent formation of new formations in the structure of concrete stone; undiscovered possibilities for modifying the matrix system with organic and mineral additives; development of filled highly active binding materials; use of enriched aggregates of improved quality; the combination of concrete, reinforcement and dispersed reinforcement and other technological techniques contributed to the evolution of the development of modern concrete science. The studies were carried out in accordance with regulatory documents GOST 12730.3–2020 Concrete. Methods for determining water absorption; GOST 10180–2012 Concrete. Methods for determining strength using control samples; GOST 12730.1–78 Concrete. Methods for determining density. In support of the above, the work investigated the integrated use of organic and mineral additives, which contributed to the accelerated formation of the structure and strength of the stone without the use of thermal effects. An improvement in rheotechnological characteristics has been recorded, a water-reducing effect has been established, and an increase in the shelf life of the concrete mixture has been established, which is no less important when concreting large-sized structures or transporting semi-finished products over long distances. The proposed research results will make it possible to successfully implement projects of global importance, creating stable, strong and durable concrete structures.