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Nano-modified Ultra-rapid Hardening Portland Cement Compositions for High Strength Concretes

Sanytsky, M. / Marushchak, U. / Olevych, Y. / Novytskyi, Y.

Abstract It was shown that one of the ways for obtaining effective high strength concrete is using ultra-rapid hardening Portland cement compositions. The possibility of development of such compositions on the basis of ordinary Portland cement for high strength concrete with using nanotechnological methods of the modification of cementitious matrix by introduction of nanoscale particles of C-S-H phase and polycarboxylate type superplasticizer is shown. The complex nanomodifier results in high water reduced effect with decreased interparticles distance, accelerated formation of hydrosilicate gel with a more homogeneous distribution of hydrates in a limited intergranular space. Nano-modified Portland cement compositions reaches 54% of standard strength after 24 h. It allows to categorize them as ultra-rapid hardening. According to the indicator of standard strength (Rc28 = 84.8 MPa), they refer to high strength binder. Effectiveness of nano-modified ultra-rapid hardening Portland cement compositions for high strength concrete under different curing conditions is confirmed.

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Nano-modified Ultra-rapid Hardening Portland Cement Compositions for High Strength Concretes

Sanytsky, M. / Marushchak, U. / Olevych, Y. / Novytskyi, Y.

Abstract It was shown that one of the ways for obtaining effective high strength concrete is using ultra-rapid hardening Portland cement compositions. The possibility of development of such compositions on the basis of ordinary Portland cement for high strength concrete with using nanotechnological methods of the modification of cementitious matrix by introduction of nanoscale particles of C-S-H phase and polycarboxylate type superplasticizer is shown. The complex nanomodifier results in high water reduced effect with decreased interparticles distance, accelerated formation of hydrosilicate gel with a more homogeneous distribution of hydrates in a limited intergranular space. Nano-modified Portland cement compositions reaches 54% of standard strength after 24 h. It allows to categorize them as ultra-rapid hardening. According to the indicator of standard strength (Rc28 = 84.8 MPa), they refer to high strength binder. Effectiveness of nano-modified ultra-rapid hardening Portland cement compositions for high strength concrete under different curing conditions is confirmed.

Nano-modified Ultra-rapid Hardening Portland Cement Compositions for High Strength Concretes

Sanytsky, M. / Marushchak, U. / Olevych, Y. / Novytskyi, Y.

Abstract It was shown that one of the ways for obtaining effective high strength concrete is using ultra-rapid hardening Portland cement compositions. The possibility of development of such compositions on the basis of ordinary Portland cement for high strength concrete with using nanotechnological methods of the modification of cementitious matrix by introduction of nanoscale particles of C-S-H phase and polycarboxylate type superplasticizer is shown. The complex nanomodifier results in high water reduced effect with decreased interparticles distance, accelerated formation of hydrosilicate gel with a more homogeneous distribution of hydrates in a limited intergranular space. Nano-modified Portland cement compositions reaches 54% of standard strength after 24 h. It allows to categorize them as ultra-rapid hardening. According to the indicator of standard strength (Rc28 = 84.8 MPa), they refer to high strength binder. Effectiveness of nano-modified ultra-rapid hardening Portland cement compositions for high strength concrete under different curing conditions is confirmed.

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Title:

Nano-modified Ultra-rapid Hardening Portland Cement Compositions for High Strength Concretes

Contributors:

Sanytsky, M. (author) / Marushchak, U. (author) / Olevych, Y. (author) / Novytskyi, Y. (author)

Published in:

Proceedings of CEE 2019 ; 392-399

Lecture Notes in Civil Engineering ; 47

Publication date:

2019-08-09

Size:

8 pages

ISBN:

978-3-030-27011-7 , 978-3-030-27010-0

ISSN:

2366-2557 , 2366-2565

DOI:

https://doi.org/10.1007/978-3-030-27011-7_50

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Ultra-rapid hardening Portland cement composition , High strength concrete , Nanomodification , Polycarboxylate superplasticizer , Nanoscale C-S-H phase Engineering , Building Construction and Design , Sustainable Development , Renewable and Green Energy , Building Materials

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