Composite material based on recycled concrete.

21st International Scientific Conference on Advanced in Civil Engineering "Construction - The Formation of Living Environment"

土木建筑工程

Pyataev, E.R.^1 ; Pilipenko, E.S.^1 ; Burtseva, M.A.^1 ; Mednikova, E.A.^1 ; Zhukov, A.D.^1

National Research University, Moscow State University of Civil Engineering (NRU MGSU), Yaroslavskoye Highway 26, Moscow

129337, Russia^1

关键词: Chemical interactions;    Comprehensive projects;    Energy-saving technologies;    Moscow State University;    Scientific foundations;    Scientific researches;    Technological parameters;    Theoretical foundations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/365/3/032041/pdf
DOI  :  10.1088/1757-899X/365/3/032041

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The article presents the results of studying the problem of the accumulation and utilization of concrete scrap. It is noted that during the implementation of comprehensive programs, including the renovation of housing, a significant amount of concrete scrap has already been accumulated, and will continue to accumulate and its utilization is necessary now, and from 2020 will become mandatory. The study of methods of concrete scrap utilization provided an opportunity to justify the appropriateness of its use as a component of building materials. The theoretical foundations for the production of composite facing materials using ground concrete scrap are based on the applied aspects of the methodology of creating new building (composite) materials, the main positions of which were formulated by the scientists of the Moscow State University of Civil Engineering. This methodology has been tested in the development of compositions and technologies of acoustic and some types of heat-insulating materials: foamed gypsum and mineral wool products of a combined structure. The results of scientific research on the development of compositions of composite material based on finegrained waste scrap concrete, mineral binder and linear polymers (with branching radicals) hardened as a result of chemical interaction with concrete components are presented. Polyurethane derivatives hardened as a result of reactions with water in the presence of catalysts with or without exposure to temperature were used as a polymeric component. The target of the research is the creation of scientific foundations of energy-saving technology of facing products based on concrete scrap. To achieve this target, it is necessary to solve the next tasks: - with the use of the foundations of the methodology for the creation of new building (composite) materials, to develop formulations and technological parameters for the creation of facade products with increased elasticity; - identify specific types of polymer compositions satisfying the conditions of curing and exploitation, elastic lining materials.