Sprayed-on modified concrete mixes for spatial structures

Vestnik MGSU

Kharchenko Aleksey Igorevich¹  Alekseev Vyacheslav Aleksandrovich²  Beterbiev Adam Said-Emievich²  Kharchenko Igor’ Yakovlevich²  Bazhenova Sof’ya Il’darovna² 

[1] LLC GORGEOSTROY;Moscow State University of Civil Engineering (National Research University);

关键词: sprayed-on concrete;    nanomodified binder;    microfiller;    structure formation;    shotcreting;   

DOI  :  10.22227/1997-0935.2016.11.48-58

来源: DOAJ

【 摘 要 】

Sprayed-on concrete is a special type of concrete using which structures are created by spraying a concrete mix on the surface under compressed air. This technology may be used in the construction of spatial structures. There is a method to increase the quality parameters of a concrete mix by modification of the used binder. The authors considered the aspects of sprayed-on modified concrete mixes application for underground structures. It is also possible to apply them for repair and reinforcement of concrete structures, protective coatings. The authors investigated the influence of nanomodified particles with individual hydraulicity with conventional diameter up to 100 nm on the properties of sprayed-on-concrete mix. The structure-formation kinetics of sprayed-on-concrete is observed depending on the additive activity and average diameter of particles. The effectiveness of the applied additive is proved, as well as the increase of technological, physical and mathematical and operational features of the obtained sprayed-on concrete.

【 授权许可】

Unknown