Influence of concrete cracking on ingress and

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Influence of concrete cracking on ingress and ...

2013-2-12  investigate the possibility of a link between cracking behavior of concrete and subsequent transport of moisture and chloride ions through the cracked material. Furthermore, the influence cracking has on the initiation of reinforcement corrosion was investigated as part of this Ph.D. study.

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Figure C.2 from Influence of concrete cracking on

Influence of concrete cracking on ingress and reinforcement corrosion @inproceedings{Pease2011InfluenceOC, title={Influence of concrete cracking on ingress and reinforcement corrosion}, author={B. Pease and M. Geiker and H. Stang and J. Weiss}, year={2011} }

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Figure D.9 from Influence of concrete cracking on

- "Influence of concrete cracking on ingress and reinforcement corrosion" Figure D.9 The process to create a new task includes (a) General Information, (b) specification of locations of Files, (c) starting Date Time, (d) Measurement Points, (e) X-Ray settings, and (f) X-Ray Camera settings.

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The Influence of Defects in Concrete (Cracking and ...

The great impact of durability on concrete performance and service life makes it a serious issue in the recent years. Cracking plays an important role in increasing the mass transport properties of concrete thus decreasing its durability against harsh environmental conditions. Construction defects such as improper consolidation is another factor leading to the unacceptably high rate of ...

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INFLUENCE OF CRACKS ON CHLORIDE INGRESS

2020-4-8  infiuence of Cracks on Chioride Ingress into Concrete Olga Garces Rodriguez, Master of Applied Science, 200 1 Department of Civil Engineering, University of Toronto Exposure of concrete to chloride ions is considered to be the main cause of premature corrosion of steel reinforcement. Cracking is an inevitable characteristic of reinforced concrete

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INFLUENCE OF CRACKS ON CHLORIDE INGRESS INTO

INFLUENCE OF CRACKS ON CHLORIDE INGRESS INTO CONCRETE The aim of this research was to examine the influence of such crack parameters as crack width and crack surface roughness on chloride ingress into concrete. Two types of transecting, parallel-wall cracks were created by either saw-cutting or splitting concrete specimens.

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Influence of Cracks on Chloride Ingress into Concrete

2003-3-1  Based on the results, it was concluded that chloride diffusion in concrete was independent of either crack width or the crack wall roughness for the ranges studied. The transecting, parallel-wall cracks were found to behave like a free concrete surface, resulting in a case of two-dimensional diffusion and greatly promoting chloride ingress.

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The Influence of Defects in Concrete (Cracking and ...

2014-9-7  The great impact of durability on concrete performance and service life makes it a serious issue in the recent years. Cracking plays an important role in increasing the mass transport properties of concrete thus decreasing its durability against harsh environmental conditions. Construction

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Influence of cracking on chloride diffusivity and

2013-10-1  As mentioned before, the influence of ITZ on chloride ingress in cracked concrete is ignored for the following two reasons, one is that at the cracked zone, and the chloride penetrating depth on crack surface is quite small, approximately 5 mm based on experiments presented later. Thus, the crack appears to have much more negative effects on chloride ingress than ITZ around cracked zone.

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Influence of Corrosion and Cracking on Bond ... -

1990-3-1  Pullout and beam tests have been conducted to study the influence of reinforcing bar corrosion and cracking on bond behavior and bond strength of reinforced concrete members. Pullout tests are used to simulate severe local corrosion, and beam tests to simulate relatively uniform corrosion, along the reinforcing bar surface.

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INFLUENCE OF CRACKS ON CHLORIDE INGRESS

2020-4-8  infiuence of Cracks on Chioride Ingress into Concrete Olga Garces Rodriguez, Master of Applied Science, 200 1 Department of Civil Engineering, University of Toronto Exposure of concrete to chloride ions is considered to be the main cause of premature corrosion of steel reinforcement. Cracking is an inevitable characteristic of reinforced concrete

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INFLUENCE OF CRACKS ON CHLORIDE INGRESS INTO

The aim of this research was to examine the influence of such crack parameters as crack width and crack surface roughness on chloride ingress into concrete. Two types of transecting, parallel-wall cracks were created by either saw-cutting or splitting concrete specimens. As a result, smooth and rough surface cracks with widths ranging from 0.08 ...

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Influence of Cracks on Chloride Ingress into Concrete

2003-3-1  Title: Influence of Cracks on Chloride Ingress into Concrete Author(s): Olga Garces Rodriguez and R. Doug Hooton Publication: Materials Journal Volume: 100 Issue: 2 Appears on pages(s): 120-126 Keywords: concrete; crack; scanning electron microscope Date: 3/1/2003 Abstract: Although it is generally recognized that cracks promote the ingress of chlorides in concrete, the lack of sufficient ...

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Influence of cracks on chloride ingress into concrete ...

2020-4-8  Abstract (summary): Exposure of concrete to chloride ions is considered to be the main cause of premature corrosion of steel reinforcement. Cracking is an inevitable characteristic of reinforced concrete structures. Although, it is generally recognized that cracks promote the ingress of chlorides in concrete, a lack of sufficient knowledge on this subject does not yet allow reliable ...

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The Influence of Defects in Concrete (Cracking and ...

The great impact of durability on concrete performance and service life makes it a serious issue in the recent years. Cracking plays an important role in increasing the mass transport properties of concrete thus decreasing its durability against harsh environmental conditions. Construction defects such as improper consolidation is another factor leading to the unacceptably high rate of ...

Get price

Influence of cracks on chloride ingress into concrete -

Cracking is an inevitable characteristic of reinforced concrete structures. Although, it is generally recognized that cracks promote the ingress of chlorides in concrete, a lack of sufficient knowledge on this subject does not yet allow reliable quantification of their effects.

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Corrosion in cracked and uncracked concrete –

2020-1-22  Cracks influence the durability of reinforced concrete (RC) structures in aggressive environments by accelerating the ingress of corrosive agents to the embedded steel. This study investigated the ...

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Chloride ingress in cracked concrete- a literature

2011-11-5  Cracking of the reinforced concrete structural members alters the local transport properties of the concrete cover, and allows rapid ingress of chloride ions and onset of corrosion. In the past two decades, several studies have focused on the influence of cracks on chloride ingress in concrete.

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The influence of SAPs on chloride ingress in cracked

Super Absorbent Polymers (SAPs) have proven to be effective as a self-healing agent for regaining the liquid tightness of cracked concrete. This is due to their large swelling capacity which allows them to (partially) block cracks which are in contact with water or moisture. Additionally, they are able to release this water when the climate becomes drier, thereby promoting the autogenous ...

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Influence of Corrosion and Cracking on Bond ... -

1990-3-1  Date: 3/1/1990. Abstract: Pullout and beam tests have been conducted to study the influence of reinforcing bar corrosion and cracking on bond behavior and bond strength of reinforced concrete members. Pullout tests are used to simulate severe local corrosion, and beam tests to simulate relatively uniform corrosion, along the reinforcing bar ...

Get price

INFLUENCE OF CRACKS ON CHLORIDE INGRESS

2020-4-8  infiuence of Cracks on Chioride Ingress into Concrete Olga Garces Rodriguez, Master of Applied Science, 200 1 Department of Civil Engineering, University of Toronto Exposure of concrete to chloride ions is considered to be the main cause of premature corrosion of steel reinforcement. Cracking is an inevitable characteristic of reinforced concrete

Get price

Corrosion in cracked and uncracked concrete –

2020-1-22  Cracks influence the durability of reinforced concrete (RC) structures in aggressive environments by accelerating the ingress of corrosive agents to the embedded steel. This study investigated the ...

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Influence of concrete composition on chloride ingress

Craeye, Bart, et al. “Influence of Concrete Composition on Chloride Ingress and Carbonation : Analysis by Means of an Extended Data-Set.” XIV DBMC, 14th International Conference on Durability of Building Materials and Components, Proceedings, edited by Geert

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Autogeneous healing and chloride ingress in cracked

2016-8-6  An experimental study of the influence of autogeneous healing on chloride ingress in cracked concrete is presented. In the study, two concrete mixtures (a Portland cement mix and a blast furnace slag mix), two healing regimes (submerged and fog room regime), two cracking ages (14 and 28 days), and multiple crack widths are used as parameters.

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The influence of SAPs on chloride ingress in cracked

Super Absorbent Polymers (SAPs) have proven to be effective as a self-healing agent for regaining the liquid tightness of cracked concrete. This is due to their large swelling capacity which allows them to (partially) block cracks which are in contact with water or moisture. Additionally, they are able to release this water when the climate becomes drier, thereby promoting the autogenous ...

Get price

Influence of crack width on the durability of reinforced ...

2015-9-28  Pease, B. (2010), ‘Influence of concrete cracking on ingress and reinforcement corrosion’, Ph.D. thesis, Technical University of Denmark, Kgs. Lyngby , Denmark. 12 Crack morphology - Crack width vs. debonding length Goto, Y., Cracks formed in concrete around deformed tension bars,

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Influence of Cast and Cut Concrete Surfaces on Chloride ...

2016-10-13  Influence of Cast and Cut Concrete Surfaces on Chloride Ingress Resistance of Concrete in Marine Splash Zone . K. De Weerdt* 1. a, M. Bernhardt2a, M. Geiker1b, O. Skjølsvold3 and K. O. Kjellsen2b 1 NTNU, Department of Structural Engineering, Richard Birkelands vei

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Influence of Crack on Concrete Damage in Salt

2021-6-16  The damage development trend of concrete with cracks in salt-freezing environment is systematically studied. The cracks are also tested in intact concrete for comparison, and crack characterization is introduced. The mass loss, the relative dynamic elastic modulus, and the change of crack width are analyzed. Results show that the crack width increases as the salt-freezing cycle

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Effect of Cracking on Corrosion of Steel in Concrete ...

2018-1-30  It is generally recognized that cracks provide easy access to ingress of chlorides in concrete and hence, the initiation of corrosion of steel in cracked concrete occurs at early stage. However, wide variety of results on the effect of crack widths on corrosion of steel in concrete are reported in many studies. Apart from crack width, the crack depths, cracking frequency and healing of cracks ...

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Plastic Shrinkage Cracking in Concrete – Influence of Test ...

2017-10-6  order to study the effect of different materials and constituents on the cracking tendency at macro- level, and ASTM C 1579, mainly designed in order to map influence of fithe bres. During this research, influence of coarse aggregate content on plastic shrinkage cracking of self -compacting concrete (SCC) was studied.

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