KFU. Card publication. Structure of 3D-Printed Concrete by X-ray Computed Tomography

KAZAN
FEDERAL UNIVERSITY

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- 中文
- ES

STRUCTURE OF 3D-PRINTED CONCRETE BY X-RAY COMPUTED TOMOGRAPHY

Form of presentation

Articles in international journals and collections

Year of publication

2023

Язык

английский

Authors, employees of KFU

Kadyrov Rail Ilgizarovich, author

Stacenko Evgeniy Olegovich, author

Bibliographic description in the original language

Mukhametrakhimov R. et al. Structure of 3D-Printed Concrete by X-ray Computed Tomography / Mukhametrakhimov, Rustem, Ziganshina, Liliya, Kadyrov, Rail, Statsenko, Evgeny // Lecture Notes in Civil Engineering. Springer International Publishing Cham, 2023. -. Vol. 291. P. 425–436

Annotation

Lecture Notes in Civil Engineering

Keywords

3D concrete printing; 3DCP; Additive manufacturing; Cement; Concrete; Mortars; X-ray computed tomography

The name of the journal

Lecture Notes in Civil Engineering

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=298071&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Kadyrov Rail Ilgizarovich	ru_RU
dc.contributor.author	Stacenko Evgeniy Olegovich	ru_RU
dc.date.accessioned	2023-01-01T00:00:00Z	ru_RU
dc.date.available	2023-01-01T00:00:00Z	ru_RU
dc.date.issued	2023	ru_RU
dc.identifier.citation	Mukhametrakhimov R. et al. Structure of 3D-Printed Concrete by X-ray Computed Tomography / Mukhametrakhimov, Rustem, Ziganshina, Liliya, Kadyrov, Rail, Statsenko, Evgeny // Lecture Notes in Civil Engineering. Springer International Publishing Cham, 2023. -. Vol. 291. P. 425–436	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=298071&p_lang=2	ru_RU
dc.description.abstract	Lecture Notes in Civil Engineering	ru_RU
dc.description.abstract	The problem of increased porosity and heterogeneity is typical for concrete products obtained by layered extrusion (3D-printing). It can be partially solved by using organomineral additives, and the optimal ratio of mixture components (binder, fine aggregate, mineral and chemical additives, water), as well as by optimizing technological parameters of the printing process. This work aims to study the peculiarities of formation of micro- and macrostructure of basic and modified composition of concrete formed by layered extrusion (3D-printing). The object of the study is the basic and modified fine-grained cement concrete. The subject of the study is the structure and properties of a single layer of concrete, printed on a 3D-printer by layered extrusion. The control (basic) composition of PC CEM I 42,5H + fine aggregate + water and the modified composition of PC CEM I 42,5H + organomineral additive (metakaolin 10% + complex additive “Relamix PC” 1%) + fine aggregate + water were investigated. The investigated compositions had cement to sand ratio of 1/3, and the Pk-3 mobility of concrete mixes. The X-ray computed tomography using General Electric V\|tome\|X S 240 (Germany) was used to study the structure of fine-grained 3D- printed concretes. The examined samples were selected from identical places within the thickness of one printed layer (not along the border of layers). The results obtained proved the efficiency of modification of fine-grained concrete mixtures of Pk 3 mobility by a complex additive containing metakaolin and copolymer based on polyoxyethylene derivatives of unsaturated carboxylic acids. The increased density and strength of 3D-printed concrete were registered. X-ray computed tomography showed that the developed compositions of the modified fine-grained concrete formed by the layered extrusion are characterized by less porous and more homogeneous structure with prevalence of an equivalent pore diameter of a smaller size (0.1–0.8 mm) in comparison with the basic composition (0.9–1.4, 1.6 mm) Concrete modified with organomineral additive has a 10.3% lower total pore volume, a 23.9% lower volume of open capillary pores, a 77% lower volume of open non-capillary pores, a 57% higher volume of conditionally closed pores, an 0.31–0.84 increase in microporosity as compared with the basic composition.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject		ru_RU
dc.title	Structure of 3D-Printed Concrete by X-ray Computed Tomography	ru_RU
dc.type	Articles in international journals and collections	ru_RU