Determination of the reinforced concrete strength by apparent resistivity depending on the curing conditions

Sabbaǧ, Nevbahar; Uyanık, Osman

doi:10.1016/j.jappgeo.2018.03.007

Cited by 33 publications

(21 citation statements)

References 39 publications

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“…In summary, comparing the R-squared values from both graphs (Figures 3 and 4), it can be noted that the water absorption by immersion is better correlated with the compressive strength than with the electrical resistivity. This might be related with the dependence that the electrical resistivity has with the chemical composition of the solution present within the concrete pores (Ramezanianpour et al, 2011;Presuel-Moreno et al, 2013;Sabbag and Uyanik, 2018). Also, this behavior explains the low dispersion obtained in the regression curve shown in Figure 3, even though a high Rsquared coefficient was found (R² = 0.935).…”

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confidence: 88%

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Correlations between water absorption, electrical resistivity and compressive strength of concrete with different contents of pozzolan

Medeiros-Junior

Munhoz

Medeiros

2019

Revista de la Asociación Latinoamericana de Control de Calidad,

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This research confronts the following concrete properties: water absorptions (by immersion and capillarity), electrical resistivity and compressive strength. Concrete mixtures with two types of cement were tested. Results showed that concretes with higher content of pozzolan had higher resistivity and greater absorption by capillarity, for water/cement ratios lower than 0,60. This behavior is attributed to reduced pore diameters and microstructure densification. However, for water/cement ratio of 0,60, concrete with lower content of pozzolan presented higher absorption by capillarity. It was observed that the compressive strength and the electrical resistivity behaved inversely proportional to the water/cement ratio, and the absorption by immersion and capillarity are directly proportional to the water/cement ratio. Correlations with high determination coefficients were found between tests.

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confidence: 88%

“…For example, concrete curing can play an important role in these relations. Presuel-Moreno et al (2013) and Sabbag and Uyanik (2018) concluded that the curing process influences the permeability of the concrete. This reflected in higher water absorption rates and electrical resistivity and lower compressive strengths.…”

Section: Introductionmentioning

confidence: 99%

Correlations between water absorption, electrical resistivity and compressive strength of concrete with different contents of pozzolan

Medeiros-Junior

Munhoz

Medeiros

2019

Revista de la Asociación Latinoamericana de Control de Calidad,

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“…Thus, there is possibly a strong relationship between the electrical resistivity and mechanical properties of rock and soil mass. A number of experiments, such as experiments to determine the linear correlation between the electrical resistivity and UCS of cemented soiland zinc-contaminated soil solidified by cement 34,35 , linear correlation between the electrical resistivity and the void ratio in undisturbed soil 36 , negative exponential relationship between the apparent resistivity and UCS in reinforced concrete 37 , and logarithmic relationship between the electrical resistivity and UCS in cemented backfill mass 38 , etc., have been carried out to demonstrate this correlation. However, there are no reports demonstrating the correlation between the electrical resistivity and UCS of HWBMs at present.…”

Section: Mineralogical Composition Change Of the Hwbmsmentioning

confidence: 99%

Experimental and mechanistic research on modifying the mechanic properties of the high water backfill material by electrochemical treatment

Xie

Sun

Wang

et al. 2020

Sci Rep

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To promote the engineering applications of high water backfill materials (HWBM) in mining, a series of experiments are performed to investigate the effects of the direct current (DC) electric field on the mechanic properties and electrical resistivity of HWBMs. Based on X-ray diffraction (XRD) and scanning electron microscopy (SEM) investigations, the influence of electrochemical treatment on the hydration products and the microstructure of the HWBM was studied. The results show that the peak strength, elastic modulus, deformation modulus and electrical resistivity of the HWBM samples all first increased and then decreased with the increasing of the potential gradient, and the peak points appeared when the potential gradient was 0.2 V/cm. The anisotropy of content of ettringite and calcium silicate hydrates (C–S–H) increased betweent the anodic and cathodic regions of samples. Meanwhile, microstructure in the anodic region of the samples was more stable after electrochemical treatment, which indicates that the different variation of mineralogical compositions and microstructures in different regions of the samples are the primary factors affecting the mechanic properties and electrical resistivity of the HWBM. Therefore, the electrochemical method is a potential technology to modify the engineering properties of the HWBM.

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“…Moreover, exposing to temperature is an influential parameter on concrete's strength properties [23], and apparent resistivity [20]. Sabbağ and Uyanık [24] evaluated both unreinforced and reinforced concrete's strength according to the apparent resistivity variations [25] and curing conditions. Both types of concrete samples were subjected to air and water cure.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Concrete’s Durability and Mechanical Characteristics Subjected to Different Curing Regimes

et al. 2021

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Considering a constant demand in construction of concrete structures to develop novel approaches for predicting the concert’s properties, a host of investigations were performed on concrete’s mechanical properties and durability under various curing regimes. However, few studies were concerned with evaluating the concrete’s durability using non-destructive concrete surface resistivity tests by applying various curing conditions. The present study compares the influence of different curing regimes on durability and compressive strength of concrete to recommend the most effective curing conditions on concrete’s characteristics. Five curing conditions including ambient, laboratory, dry oven, wet oven and 7-days were analyzed. Accordingly, a non-destructive concrete surface resistivity test was performed on the concrete specimens using hand-held Wenner Resipod probe meter as a reliable and rapid approach. To analyze specimen’s durability, results of the surface sensitivity tests were correlated to chloride ion penetration rate based on the cylinder specimen dimensions and the degree of chloride ion penetration. The compressive strength tests were conducted on the specimens after 7, 28 and 56 days to determine the effect of curing conditions at different ages. Based on the reported outcomes, applying the wet oven curing regime results in higher compressive strength and durability compared to the other curing conditions. Doi: 10.28991/cej-2021-03091681 Full Text: PDF

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Determination of the reinforced concrete strength by apparent resistivity depending on the curing conditions

Cited by 33 publications

References 39 publications

Correlations between water absorption, electrical resistivity and compressive strength of concrete with different contents of pozzolan

Correlations between water absorption, electrical resistivity and compressive strength of concrete with different contents of pozzolan

Experimental and mechanistic research on modifying the mechanic properties of the high water backfill material by electrochemical treatment

An Experimental Study on Concrete’s Durability and Mechanical Characteristics Subjected to Different Curing Regimes

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