High-performance fine-grained nanostructured concrete based on low strength aggregates

This paper continues the authors' previous research on developing high-performance concretes based on low-strength aggregates. Unlike the previous work, where a low-strength crushed stone was used, the current research investigates a low-strength fine aggregate-based concrete. With modern const...

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Main Authors: Rassokhin Aleksandr, Ponomarev Andrey, Karlina Antonina
Format: Article
Language:English
Published: Peter the Great St. Petersburg Polytechnic University 2022-10-01
Series:Magazine of Civil Engineering
Subjects:
Online Access:http://engstroy.spbstu.ru/article/2022.114.13/
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author Rassokhin Aleksandr
Ponomarev Andrey
Karlina Antonina
author_facet Rassokhin Aleksandr
Ponomarev Andrey
Karlina Antonina
author_sort Rassokhin Aleksandr
collection DOAJ
description This paper continues the authors' previous research on developing high-performance concretes based on low-strength aggregates. Unlike the previous work, where a low-strength crushed stone was used, the current research investigates a low-strength fine aggregate-based concrete. With modern construction chemistry in combination with pozzolan and high dispersed ground additives and nanomodification, it is possible to obtain high strength and operational characteristics concretes. The work carried out studies of three cement manufacturers for suitability in high-strength hydrotechnical concrete and phase analysis of the aggregates used in this study. Strength (7, 28, 180 days), density, waterproofness, freeze-thaw resistance of fine-grained concrete based on low-strength and high-strength aggregates were compared in the research. The final result is a concrete recipe with freeze-thaw resistance class F400, Waterproofing class W20 and compressive strength of 60.5 MPa at the age of 28 days (71.9 MPa at 180 days).
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spelling doaj.art-529b5b91d08745ca97bff9ed1c5053fd2022-12-22T03:31:02ZengPeter the Great St. Petersburg Polytechnic UniversityMagazine of Civil Engineering2712-81722022-10-011140610.34910/MCE.114.1320714726High-performance fine-grained nanostructured concrete based on low strength aggregatesRassokhin Aleksandr0https://orcid.org/0000-0001-7416-927XPonomarev Andrey1https://orcid.org/0000-0003-2803-8281Karlina Antonina2https://orcid.org/0000-0003-3287-3298Peter the Great St. Petersburg Polytechnic UniversityPeoples' Friendship University of RussiaMoscow State University of Civil EngineeringThis paper continues the authors' previous research on developing high-performance concretes based on low-strength aggregates. Unlike the previous work, where a low-strength crushed stone was used, the current research investigates a low-strength fine aggregate-based concrete. With modern construction chemistry in combination with pozzolan and high dispersed ground additives and nanomodification, it is possible to obtain high strength and operational characteristics concretes. The work carried out studies of three cement manufacturers for suitability in high-strength hydrotechnical concrete and phase analysis of the aggregates used in this study. Strength (7, 28, 180 days), density, waterproofness, freeze-thaw resistance of fine-grained concrete based on low-strength and high-strength aggregates were compared in the research. The final result is a concrete recipe with freeze-thaw resistance class F400, Waterproofing class W20 and compressive strength of 60.5 MPa at the age of 28 days (71.9 MPa at 180 days).http://engstroy.spbstu.ru/article/2022.114.13/high-performance concretecompressive strengthfine-grained concretebasalt fibersilica fume
spellingShingle Rassokhin Aleksandr
Ponomarev Andrey
Karlina Antonina
High-performance fine-grained nanostructured concrete based on low strength aggregates
Magazine of Civil Engineering
high-performance concrete
compressive strength
fine-grained concrete
basalt fiber
silica fume
title High-performance fine-grained nanostructured concrete based on low strength aggregates
title_full High-performance fine-grained nanostructured concrete based on low strength aggregates
title_fullStr High-performance fine-grained nanostructured concrete based on low strength aggregates
title_full_unstemmed High-performance fine-grained nanostructured concrete based on low strength aggregates
title_short High-performance fine-grained nanostructured concrete based on low strength aggregates
title_sort high performance fine grained nanostructured concrete based on low strength aggregates
topic high-performance concrete
compressive strength
fine-grained concrete
basalt fiber
silica fume
url http://engstroy.spbstu.ru/article/2022.114.13/
work_keys_str_mv AT rassokhinaleksandr highperformancefinegrainednanostructuredconcretebasedonlowstrengthaggregates
AT ponomarevandrey highperformancefinegrainednanostructuredconcretebasedonlowstrengthaggregates
AT karlinaantonina highperformancefinegrainednanostructuredconcretebasedonlowstrengthaggregates