Abstract
The article presents a study of innovative materials in the field of highly mobile and cast concrete mixtures using pipeline transport. The studies were carried out on mixtures with a complex additive based on S-3 superplasticizer. The complex included a plasticizing-air-entraining additive LHD with an air-entraining effect. Studies of the effects of S-3 and LHD additives on the construction and technical properties were carried out on mixtures with different cement flow rates and the same initial mobility. Studies of the rheological parameters of the mixtures were carried out using the mathematical theory of experimental design; measurements of resistivities were performed depending on the flow velocity. The result of the work is a linear dependence of the change in resistivities along the length and height. The studies carried out allow, based on necessary calculations, the construction of concrete ducts that ensure the operation of extruders on 3D building printers. At the same time, it is possible to design both flexible concrete ducts and rigid for ram-port printers in the construction of multi-story buildings. In this case, the desired speed of movement of concrete masses is 1–2 m/s.
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Komarinsky, M., Velichkin, V., Gorodishenina, A., Abdukhalyk, T. (2021). Pipeline Transport of Cast Concrete. In: Vatin, N., Borodinecs, A., Teltayev, B. (eds) Proceedings of EECE 2020. EECE 2020. Lecture Notes in Civil Engineering, vol 150. Springer, Cham. https://doi.org/10.1007/978-3-030-72404-7_13
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DOI: https://doi.org/10.1007/978-3-030-72404-7_13
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