Thixotropic behavior of self compacting concrete with different mineral admixtures

M. K. Rahman; M. H. Baluch; M. A. Malik

doi:10.1016/j.conbuildmat.2013.10.025

Thixotropic behavior of self compacting concrete with different mineral admixtures

M. K. Rahman^*, M. H. Baluch, M. A. Malik

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

98 Scopus citations

Abstract

Experimental investigations are carried out on Self Compacting Concrete (SCC) in the presence of mineral admixtures silica fume, limestone powder and fly ash for a target slump of 700 ± 20 mm and minimum static segregation. SCC is a thixotropic material whose steady state is governed by Bingham constitutive model and it flocculates with resting time. The characteristic flocculation time is obtained for the different mixes, together with the flocculation rate A_thix based on ICAR rheometer measurements. Results indicate that addition of silica fume (2.5% replacement), limestone powder (15% replacement) and fly ash (10% replacement) increases flocculation rate A _thix significantly.

Original language	English
Pages (from-to)	710-717
Number of pages	8
Journal	Construction and Building Materials
Volume	50
DOIs	https://doi.org/10.1016/j.conbuildmat.2013.10.025
State	Published - 2014

Bibliographical note

Funding Information:
We gratefully acknowledge Deanship of Scientific Research at King Fahd University of Petroleum and Minerals (KFUPM) for providing financial support under research grant FT-090019. The support of Civil Engineering Department and the Center for Engineering Research at KFUPM is also acknowledged. We also thank Dr. Narasimhulu Gari and Mr. Redwan Hameed of Saudi Ready Mix Concrete Company for their valuable technical advice, cooperation, and use of laboratory facilities.

Keywords

Computational fluid dynamics
Flocculation rate
Flowability
Rheology
Segregation
Self compacting concrete
Thixotropy
Viscosity
Yield stress

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

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10.1016/j.conbuildmat.2013.10.025

Cite this

@article{9bafbfe5b06f41f787bba72e495bdce2,

title = "Thixotropic behavior of self compacting concrete with different mineral admixtures",

abstract = "Experimental investigations are carried out on Self Compacting Concrete (SCC) in the presence of mineral admixtures silica fume, limestone powder and fly ash for a target slump of 700 ± 20 mm and minimum static segregation. SCC is a thixotropic material whose steady state is governed by Bingham constitutive model and it flocculates with resting time. The characteristic flocculation time is obtained for the different mixes, together with the flocculation rate Athix based on ICAR rheometer measurements. Results indicate that addition of silica fume (2.5\% replacement), limestone powder (15\% replacement) and fly ash (10\% replacement) increases flocculation rate A thix significantly.",

keywords = "Computational fluid dynamics, Flocculation rate, Flowability, Rheology, Segregation, Self compacting concrete, Thixotropy, Viscosity, Yield stress",

author = "Rahman, \{M. K.\} and Baluch, \{M. H.\} and Malik, \{M. A.\}",

note = "Funding Information: We gratefully acknowledge Deanship of Scientific Research at King Fahd University of Petroleum and Minerals (KFUPM) for providing financial support under research grant FT-090019. The support of Civil Engineering Department and the Center for Engineering Research at KFUPM is also acknowledged. We also thank Dr. Narasimhulu Gari and Mr. Redwan Hameed of Saudi Ready Mix Concrete Company for their valuable technical advice, cooperation, and use of laboratory facilities.",

year = "2014",

doi = "10.1016/j.conbuildmat.2013.10.025",

language = "English",

volume = "50",

pages = "710--717",

journal = "Construction and Building Materials",

issn = "0950-0618",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Thixotropic behavior of self compacting concrete with different mineral admixtures

AU - Rahman, M. K.

AU - Baluch, M. H.

AU - Malik, M. A.

N1 - Funding Information: We gratefully acknowledge Deanship of Scientific Research at King Fahd University of Petroleum and Minerals (KFUPM) for providing financial support under research grant FT-090019. The support of Civil Engineering Department and the Center for Engineering Research at KFUPM is also acknowledged. We also thank Dr. Narasimhulu Gari and Mr. Redwan Hameed of Saudi Ready Mix Concrete Company for their valuable technical advice, cooperation, and use of laboratory facilities.

PY - 2014

Y1 - 2014

N2 - Experimental investigations are carried out on Self Compacting Concrete (SCC) in the presence of mineral admixtures silica fume, limestone powder and fly ash for a target slump of 700 ± 20 mm and minimum static segregation. SCC is a thixotropic material whose steady state is governed by Bingham constitutive model and it flocculates with resting time. The characteristic flocculation time is obtained for the different mixes, together with the flocculation rate Athix based on ICAR rheometer measurements. Results indicate that addition of silica fume (2.5% replacement), limestone powder (15% replacement) and fly ash (10% replacement) increases flocculation rate A thix significantly.

AB - Experimental investigations are carried out on Self Compacting Concrete (SCC) in the presence of mineral admixtures silica fume, limestone powder and fly ash for a target slump of 700 ± 20 mm and minimum static segregation. SCC is a thixotropic material whose steady state is governed by Bingham constitutive model and it flocculates with resting time. The characteristic flocculation time is obtained for the different mixes, together with the flocculation rate Athix based on ICAR rheometer measurements. Results indicate that addition of silica fume (2.5% replacement), limestone powder (15% replacement) and fly ash (10% replacement) increases flocculation rate A thix significantly.

KW - Computational fluid dynamics

KW - Flocculation rate

KW - Flowability

KW - Rheology

KW - Segregation

KW - Self compacting concrete

KW - Thixotropy

KW - Viscosity

KW - Yield stress

UR - https://www.scopus.com/pages/publications/84896518885

U2 - 10.1016/j.conbuildmat.2013.10.025

DO - 10.1016/j.conbuildmat.2013.10.025

M3 - Article

AN - SCOPUS:84896518885

SN - 0950-0618

VL - 50

SP - 710

EP - 717

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Thixotropic behavior of self compacting concrete with different mineral admixtures

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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Cite this