Phosphate treatment of TMT rebar bundle to avoid early rusting: An option for single step process

Manna, M.; Chakrabarti, Indrajit; Bandyopadhyay, N.

doi:10.1016/j.surfcoat.2006.02.041

Cited by 25 publications

(14 citation statements)

References 18 publications

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“…Indeed, in recent years, many corrosion inhibitors have been investigated as a mean to prevent steel reinforcement corrosion when carbonation or chloride contamination of the concrete occurs [21,22]. For example, phosphate compounds have been used to minimize corrosion [23][24][25]. Soluble phosphates, traditionally disodium phosphate (Na 2 HPO 4 ) or sodium monofluorophosphate (MFP) (Na 2 PO 3 F), can be introduced in concrete by two ways: mixed with the cement, sand and water [26], or applied on concrete by immersion or by surface pulverization [27].…”

Section: Introductionmentioning

confidence: 99%

Effect of Na3PO4 addition in mortar on steel reinforcement corrosion behavior in 3% NaCl solution

Nahali

Dhouibi

Idrissi

2015

Construction and Building Materials

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Section: Introductionmentioning

confidence: 99%

Effect of Na3PO4 addition in mortar on steel reinforcement corrosion behavior in 3% NaCl solution

Nahali

Dhouibi

Idrissi

2015

Construction and Building Materials

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“…It also increases the strength of steels by solid solution strengthening mechanism [12,13]. In order to improve the corrosion resistance of thermomechanically treated (TMT) structural steels bars used for reinforcement of concrete, P-added TMT (TMT-P) steel has also been developed [14][15][16][17]. The purposes of this research work is to have a better understanding concerning the improvement of tensile as well as fatigue lives by adding phosphorus in iron and the possible deterioration in various mechanical properties if these steels are annealed.…”

Section: Introductionmentioning

confidence: 99%

Tensile and plane bending fatigue properties of pure iron and iron-phosphorus alloys at room temperature in the air

Islam

Sato

Tomota

2011

Trans Indian Inst Met

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In many low alloys as well as in plain carbon steels, segregation of trace element, especially phosphorus (P), sulfur (S), arsenic (As), etc. is really a great problem. Because, it induces brittleness in the steels and subsequently causes deterioration in mechanical properties. In this present work, commercial grade of pure iron with varying amount of phosphorus contents such as 0.001, 0.11 and 0.21 wt% were annealed at different temperatures and time periods to induce varying degrees of temper embrittlement. After annealing heat treatment, tensile and plane bending fatigue tests of these ferrous alloys were carried out at room temperature in the air. The tensile and fatigue fracture surfaces were observed under scanning electron microscope (SEM) to study various fracture features. It has been found that the addition of phosphorus in the pure iron increased the tensile strength, however, it decreased the ductility. The grain refining effects and increase in tensile strength due to additions of P were found to be very significant. However, with increase in annealing time at any temperature, the mechanical properties were found to deteriorate gradually and the fatigue fracture mode was also found to change from its transgranular cleavage type to intergranular type fracture.

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“…It also increases the strength of steel by solid solution strengthening mechanism [12,13]. In order to improve the corrosion resistance of thermomechanically treated (TMT) structural steels used for reinforcement of concrete, P added TMT (TMT-P) steel has been developed [14][15][16][17]. With the better understanding of the physical metallurgy of Fe-P interaction, it seems that P is gradually becoming to be a very important element for ferrous alloy, especially for steels.…”

Section: Introduction O * Corresponding Authormentioning

confidence: 99%

Effects of Process Parameters on Ferrite Grain Size of Commercially Pure Iron

Islam

Sato²,

Tomota³

2011

J. Sci. Res.

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Besides the tremendous development of various materials, e.g. polymeric, ceramic, composites materials, etc. ferrous material is still the most important engineering material because of its many favorable properties. For ferrous alloys, grain size is very important as it directly influences the physical, chemical and mechanical properties of the alloys. In this study the effects of various process parameters such as annealing temperature, holding time period during annealing and phosphorus (P) additions (0.11% and 0.21%) have been investigated. After annealing heat treatments at different temperatures for various time periods, the alloys were etched in nital to reveal the ferrite grain sizes and they were then observed in the optical and scanning electron microscope (SEM). Experimental results revealed that annealing temperatures were more dominating over annealing time periods to control ferrite grain sizes and that after 0.11% P, more addition of phosphorus (e.g. 0.21%) was not found to influence ferrite grain sizes significantly under any annealing condition practiced in this study.

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Phosphate treatment of TMT rebar bundle to avoid early rusting: An option for single step process

Cited by 25 publications

References 18 publications

Effect of Na3PO4 addition in mortar on steel reinforcement corrosion behavior in 3% NaCl solution

Effect of Na3PO4 addition in mortar on steel reinforcement corrosion behavior in 3% NaCl solution

Tensile and plane bending fatigue properties of pure iron and iron-phosphorus alloys at room temperature in the air

Effects of Process Parameters on Ferrite Grain Size of Commercially Pure Iron

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