Additive technology for manufacturing products and structures from reinforced concrete
https://doi.org/10.21822/2073-6185-2022-49-2-158-164
Abstract
Objective. An analysis of already known technological methods for molding shotcrete and a construction 3D printer confirmed the effectiveness of building additive technologies. The proposed extended additive technology, the method of electrostatic molding of products and structures made of reinforced concrete, will find its practical application in construction.
Method. The principle of obtaining electrostatic concrete is the electrostatic deposition of a semi-dry mixture of binder, finely ground sand and fibers on a shaping base made of steel or carbon mesh. The resulting layers are dosed with finely sprayed water with various additives, the mixture sedimentation and moisturizing cycles are repeated until the desired thickness of reinforced concrete is obtained.
Result. Electrostatic buildup of concrete layers occurs without mechanical impact on the shaping base. This means that the basis of the product can be made from a small amount of material in a short time and in any available way. The first layers of fiber-reinforced concrete, after holding time, give strength to the shaping base. As the thickness of concrete increases, the strength of the product increases, outstripping the increase in mass.
Conclusion. The electrostatic molding method makes it possible to manufacture thin-walled body parts of complex shape, spatial shells, architectural and construction parts, and structures of membranes, hollow columns and racks, power line supports, reclamation gutters, large-diameter drainage pipes, tanks, etc.
About the Author
M. R. Nakhaev
M.D. Millionshchikov Grozny State Oil Technical University;
A.A. Kadyrov Chechen State University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assoc. Prof., Institute of Construction, Architecture and Design, 100 Isaev Ave., Grozny 364051;
Vice-Rector for Research and Innovation, 32 Sheripova Str., Grozny 364024
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Review
For citations:
Nakhaev M.R. Additive technology for manufacturing products and structures from reinforced concrete. Herald of Dagestan State Technical University. Technical Sciences. 2022;49(2):158-164. (In Russ.) https://doi.org/10.21822/2073-6185-2022-49-2-158-164
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