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Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications

Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications

The effect of a steel fiber and silica fume on the first-crack strength and the flexural toughness of concrete is evaluated. The ten sets of specimens with a steel fiber content of 0, 40, 50, and 60 g/m³ and steel fiber types of wave shear and straight shear types with and without a silica fume cont...

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Main Authors: Zhang, J.P., Liu, L.M., Zhu, Z.D., Zhang, F.T., Cao, J Z.
Format: Article
Language:English
Published: Інститут проблем міцності ім. Г.С. Писаренко НАН України 2018
Series:Проблемы прочности
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Научно-технический раздел
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/173828
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spelling irk-123456789-1738282020-12-22T01:26:14Z Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications Zhang, J.P. Liu, L.M. Zhu, Z.D. Zhang, F.T. Cao, J Z. Научно-технический раздел The effect of a steel fiber and silica fume on the first-crack strength and the flexural toughness of concrete is evaluated. The ten sets of specimens with a steel fiber content of 0, 40, 50, and 60 g/m³ and steel fiber types of wave shear and straight shear types with and without a silica fume content of a 10% replacement of the cement weight were tested. The results show that the combined effect of silica fume and steel fiber improve the first-crack load and deflection of specimens to a certain degree and increase the flexural fracture toughness of specimens greatly. In the strengthening effect of steel fiber silica fume concrete, the steel fiber is of first importance, while silica fume is an auxiliary component. The wet steel fiber-silica fume shotcrete support for controlling the surrounding rock mass can provide the whole supporting effect of the anchor mesh shotcrete. Выполнена оценка влияния стального волокна и кремнеземной пыли на прочность бетона при появлении первой трещины и вязкость разрушения при изгибе. Выполнены испытания 10 серий образцов с содержанием стального волокна 0, 40, 50, 60 г/м³, использовано стальное волокно различных типов без содержания кремнеземной пыли и с ее содержанием на уровне 10% замещения веса цемента. Показано, что совместное использование кремнеземной пыли и стального волокна повышает допустимую нагрузку образования первой трещины и прогиба образцов, а также вязкость разрушения при изгибе. Установлено, что упрочнение сталефибробетона с добавками кремнеземной пыли определяется содержанием стального волокна, а кремнеземная пыль является вспомогательным компонентом. Опора из смеси сталефиброторкретбетона с содержанием кремнеземной пыли, обеспечивающая контроль окружающего скального массива, усиливает общий несущий эффект анкерной структуры. 2018 Article Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications / J.P. Zhang, L.M. Liu, Z.D. Zhu, F.T. Zhang, J Z. Cao // Проблемы прочности. — 2018. — № 1. — С. 182-192. — Бібліогр.: 19 назв. — англ. 0556-171X http://dspace.nbuv.gov.ua/handle/123456789/173828 539.4 en Проблемы прочности Інститут проблем міцності ім. Г.С. Писаренко НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Научно-технический раздел
Научно-технический раздел
spellingShingle Научно-технический раздел
Научно-технический раздел
Zhang, J.P.
Liu, L.M.
Zhu, Z.D.
Zhang, F.T.
Cao, J Z.
Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications
Проблемы прочности
description The effect of a steel fiber and silica fume on the first-crack strength and the flexural toughness of concrete is evaluated. The ten sets of specimens with a steel fiber content of 0, 40, 50, and 60 g/m³ and steel fiber types of wave shear and straight shear types with and without a silica fume content of a 10% replacement of the cement weight were tested. The results show that the combined effect of silica fume and steel fiber improve the first-crack load and deflection of specimens to a certain degree and increase the flexural fracture toughness of specimens greatly. In the strengthening effect of steel fiber silica fume concrete, the steel fiber is of first importance, while silica fume is an auxiliary component. The wet steel fiber-silica fume shotcrete support for controlling the surrounding rock mass can provide the whole supporting effect of the anchor mesh shotcrete.
format Article
author Zhang, J.P.
Liu, L.M.
Zhu, Z.D.
Zhang, F.T.
Cao, J Z.
author_facet Zhang, J.P.
Liu, L.M.
Zhu, Z.D.
Zhang, F.T.
Cao, J Z.
author_sort Zhang, J.P.
title Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications
title_short Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications
title_full Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications
title_fullStr Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications
title_full_unstemmed Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications
title_sort flexural fracture toughness and first-crack strength tests of steel fiber-silica fume concrete and its engineering applications
publisher Інститут проблем міцності ім. Г.С. Писаренко НАН України
publishDate 2018
topic_facet Научно-технический раздел
url http://dspace.nbuv.gov.ua/handle/123456789/173828
citation_txt Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications / J.P. Zhang, L.M. Liu, Z.D. Zhu, F.T. Zhang, J Z. Cao // Проблемы прочности. — 2018. — № 1. — С. 182-192. — Бібліогр.: 19 назв. — англ.
series Проблемы прочности
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AT zhangft flexuralfracturetoughnessandfirstcrackstrengthtestsofsteelfibersilicafumeconcreteanditsengineeringapplications
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first_indexed 2023-10-18T22:35:00Z
last_indexed 2023-10-18T22:35:00Z
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