Steel/Mortar interfaces: Mechanical characteristics and electrocapillarity

Page, C.L.; Khalaf, Moayad N.; Ritchie, Alistair G. B.

doi:10.1016/0008-8846(78)90028-5

Cited by 24 publications

(15 citation statements)

References 9 publications

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“…Therefore, more research is needed in order to gain a better understanding of the nature of the corrosion influence on bond, and the parameters, which affect the failure of bond due to corrosion. Page et al (1978) conducted research on the effect of mix characteristics and steel surface conditions on the bond between the steel reinforcement and different mortars. It was found that the changes in the properties of the steel oxide film influence the bond strength.…”

Section: Summary Of Previous Researchmentioning

confidence: 99%

Bond Deterioration of Reinforcing Steel in Concrete Due to Corrosion

Amleh¹,

Mirza²,

Ahwazi³

2002

Challenges of Concrete Construction: Volume 3, Repair, Rejuvenation and Enhancement of Concrete

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This manuscript has been reproduced tram the microfilm master. UMI films the text directly tram the original or copy submitted. Thus, sorne thesis and dissertation copies are in typewriter face, while others may be trom any type of computer printer.The quality of this reproduction is dependent upon the quallty of the copY submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction.ln the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion.Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing trom left to right in equal sections with small overlaps.

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Section: Summary Of Previous Researchmentioning

confidence: 99%

Bond Deterioration of Reinforcing Steel in Concrete Due to Corrosion

Amleh¹,

Mirza²,

Ahwazi³

2002

Challenges of Concrete Construction: Volume 3, Repair, Rejuvenation and Enhancement of Concrete

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“…The frequency of such failures was 73.3% for mild steel and 80.3% for stainless steel, after 7 days of curing. The corresponding values for copper and brass are 3.3 and 3.2% respectively (Page et al 1978;Khalaf and Page 1979). This indicates the existence of better adhesion likely of chemical origin.…”

Section: Cement Steel Interfacementioning

confidence: 82%

Interface-durability correlations in concrete

James

1991

Bull. Mater. Sci.

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The performance of concrete is dictated mostly by the characteristics of the transition zone. Internal bleeding leads to a higher effective water/cement ratio and hence a more open, porous structure at the cement/aggregate interface. Besides, more of AFt, AFm and CH phases and halides, sulphate, alkalis and other admixture components and less of C-S-H are found in this zone. These cause the deterioration of the reinforcing materials like steel, silicious aggregates, glass and natural fibres. The orientation of the crystalline phases parallel to the interface also weakens the mortar. The porosity and related effects are considerably modified by the use of plasticizers, fine pozzolanic additives and reduced water cement ratio. The mechanism of interfacial structure formation and their resulting effects on the reinforcement are discussed together with the possible precautionary measures.

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“…Aluminum doping in the galvanized coating limit the calcium hydroxizincate formation due to the preferential reaction of OHand Ca(OH)2 with Al atoms [109,110] but the results highlight ambiguous effects on bonding strength improvement or deterioration [34,88,95]. Electrochemical bonding of concrete on steel [112,113] and others metals such as Al, Zn and Pb [14] may be limited by controlling the electronic interactions with the metallic substrate polarization [114,115].…”

Section: Electrochemical Bondingmentioning

confidence: 99%

Designing metallic surfaces in contact with hardening fresh concrete: A review

Coniglio

Spitz

Mansori

2020

Construction and Building Materials

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Concrete, a commonly used material in the construction industry, interacts with metallic surfaces such as formwork during pouring and reinforced bar during lifespan. Formworks are designed to minimize hardened concrete adherence in order to avoid wall defects after formwork removal. In opposite, reinforced bar designs aim at maximizing their adherence to concrete for optimizing the transmission of mechanical solicitations. The present review investigates the surface properties that govern bonding of freshly poured concrete onto metallic surfaces. Identifying the underlying mechanisms of adhesion highlighted the importance of substrate characteristics (roughness, composition), concrete curing and compaction), and interfacial additives (release agents, wetting). This paper addresses the basic requirements in designing a functional surface interacting with concrete and emphasizes today challenges.

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Steel/Mortar interfaces: Mechanical characteristics and electrocapillarity

Cited by 24 publications

References 9 publications

Bond Deterioration of Reinforcing Steel in Concrete Due to Corrosion

Bond Deterioration of Reinforcing Steel in Concrete Due to Corrosion

Interface-durability correlations in concrete

Designing metallic surfaces in contact with hardening fresh concrete: A review

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