Corrosion resistance of self-compacting concrete incorporating quarry dust powder, silica fume and fly ash

H. A.F. Dehwah

doi:10.1016/j.conbuildmat.2012.07.078

Corrosion resistance of self-compacting concrete incorporating quarry dust powder, silica fume and fly ash

H. A.F. Dehwah^*

^*Corresponding author for this work

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58 Scopus citations

Abstract

This paper presents the results of a study conducted to evaluate the corrosion resistance of self-compacting concrete (SCC) prepared using quarry dust powder (QDP), silica fume (SF) plus QDP or fly ash (FA). SCC specimens were prepared and tested for corrosion resistance, chloride permeability and chloride diffusion. The results indicated that the time to initiation of reinforcement corrosion in M4 (8% QDP plus 5% SF and w/c = 0.4) specimens and M2 (8% QDP and w/c = 0.38) specimens was more than that in M5 (30% FA and w/c = 0.4) specimens. The corrosion current density on steel in the SCC specimens was very low in the initial stage of exposure to 5% NaCl solution and it increased with increasing period of exposure. Corrosion activation was noted on steel in M1, M3, and M5 specimens. However, it was not noted in M2 and M4 specimens even after 990 days (33 months) of exposure. The chloride permeability in SCC specimens incorporating QDP or FA was moderate and it was low in the specimens incorporating QDP plus SF. The lowest diffusion coefficient was noted in M2 specimens while it was the highest in M5 specimens.

Original language	English
Pages (from-to)	277-282
Number of pages	6
Journal	Construction and Building Materials
Volume	37
DOIs	https://doi.org/10.1016/j.conbuildmat.2012.07.078
State	Published - Dec 2012

Bibliographical note

Funding Information:
The authors express their thanks and appreciation and gratefully acknowledge the support received from King Fahd University of Petroleum & Minerals, under Project #IN070343.

Keywords

Chloride permeability
Coefficient of chloride diffusion
Quarry dust powder
Reinforcement corrosion
Self-compacting concrete

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

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10.1016/j.conbuildmat.2012.07.078

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title = "Corrosion resistance of self-compacting concrete incorporating quarry dust powder, silica fume and fly ash",

abstract = "This paper presents the results of a study conducted to evaluate the corrosion resistance of self-compacting concrete (SCC) prepared using quarry dust powder (QDP), silica fume (SF) plus QDP or fly ash (FA). SCC specimens were prepared and tested for corrosion resistance, chloride permeability and chloride diffusion. The results indicated that the time to initiation of reinforcement corrosion in M4 (8\% QDP plus 5\% SF and w/c = 0.4) specimens and M2 (8\% QDP and w/c = 0.38) specimens was more than that in M5 (30\% FA and w/c = 0.4) specimens. The corrosion current density on steel in the SCC specimens was very low in the initial stage of exposure to 5\% NaCl solution and it increased with increasing period of exposure. Corrosion activation was noted on steel in M1, M3, and M5 specimens. However, it was not noted in M2 and M4 specimens even after 990 days (33 months) of exposure. The chloride permeability in SCC specimens incorporating QDP or FA was moderate and it was low in the specimens incorporating QDP plus SF. The lowest diffusion coefficient was noted in M2 specimens while it was the highest in M5 specimens.",

keywords = "Chloride permeability, Coefficient of chloride diffusion, Quarry dust powder, Reinforcement corrosion, Self-compacting concrete",

author = "Dehwah, \{H. A.F.\}",

note = "Funding Information: The authors express their thanks and appreciation and gratefully acknowledge the support received from King Fahd University of Petroleum \& Minerals, under Project \#IN070343. ",

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AU - Dehwah, H. A.F.

N1 - Funding Information: The authors express their thanks and appreciation and gratefully acknowledge the support received from King Fahd University of Petroleum & Minerals, under Project #IN070343.

PY - 2012/12

Y1 - 2012/12

N2 - This paper presents the results of a study conducted to evaluate the corrosion resistance of self-compacting concrete (SCC) prepared using quarry dust powder (QDP), silica fume (SF) plus QDP or fly ash (FA). SCC specimens were prepared and tested for corrosion resistance, chloride permeability and chloride diffusion. The results indicated that the time to initiation of reinforcement corrosion in M4 (8% QDP plus 5% SF and w/c = 0.4) specimens and M2 (8% QDP and w/c = 0.38) specimens was more than that in M5 (30% FA and w/c = 0.4) specimens. The corrosion current density on steel in the SCC specimens was very low in the initial stage of exposure to 5% NaCl solution and it increased with increasing period of exposure. Corrosion activation was noted on steel in M1, M3, and M5 specimens. However, it was not noted in M2 and M4 specimens even after 990 days (33 months) of exposure. The chloride permeability in SCC specimens incorporating QDP or FA was moderate and it was low in the specimens incorporating QDP plus SF. The lowest diffusion coefficient was noted in M2 specimens while it was the highest in M5 specimens.

AB - This paper presents the results of a study conducted to evaluate the corrosion resistance of self-compacting concrete (SCC) prepared using quarry dust powder (QDP), silica fume (SF) plus QDP or fly ash (FA). SCC specimens were prepared and tested for corrosion resistance, chloride permeability and chloride diffusion. The results indicated that the time to initiation of reinforcement corrosion in M4 (8% QDP plus 5% SF and w/c = 0.4) specimens and M2 (8% QDP and w/c = 0.38) specimens was more than that in M5 (30% FA and w/c = 0.4) specimens. The corrosion current density on steel in the SCC specimens was very low in the initial stage of exposure to 5% NaCl solution and it increased with increasing period of exposure. Corrosion activation was noted on steel in M1, M3, and M5 specimens. However, it was not noted in M2 and M4 specimens even after 990 days (33 months) of exposure. The chloride permeability in SCC specimens incorporating QDP or FA was moderate and it was low in the specimens incorporating QDP plus SF. The lowest diffusion coefficient was noted in M2 specimens while it was the highest in M5 specimens.

KW - Chloride permeability

KW - Coefficient of chloride diffusion

KW - Quarry dust powder

KW - Reinforcement corrosion

KW - Self-compacting concrete

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U2 - 10.1016/j.conbuildmat.2012.07.078

DO - 10.1016/j.conbuildmat.2012.07.078

M3 - Article

AN - SCOPUS:84865613787

SN - 0950-0618

VL - 37

SP - 277

EP - 282

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Corrosion resistance of self-compacting concrete incorporating quarry dust powder, silica fume and fly ash

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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