Prediction of reinforced concrete strength by ultrasonic velocities

Sabbaǧ, Nevbahar; Uyanık, Osman

doi:10.1016/j.jappgeo.2017.04.005

Cited by 63 publications

(28 citation statements)

References 22 publications

(21 reference statements)

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“…For example, the shear wave velocity has been related to the liquefaction resistance in soil samples by Yunmin et al (). Sabba and Uyanik () presented an empirical exponential relationship between the uniaxial compressive strength of samples of reinforced concrete and their shear‐wave velocities ( R 2 ∼0.90). The principles of MASW methods have been successfully used for in situ studies, for example, the methodology employed by Ryden and Park () to determine the thickness and shear velocities of pavement layers.…”

Section: Geophysical Methods In Soil Sciencementioning

confidence: 99%

“…The sensitivity of seismic measurements to the mechanical states of the soil and wave interactions with inclusions offer opportunities for detection of compacted layers, aggregation, and potentially large pores beyond what geoelectrical and EM methods provide. There is a wealth of experience and literature from geotechnical engineering on linking seismic signatures to soil mechanical states such as liquification resistance, penetrometer mechanical impedance, shear and bulk moduli, and soil density (e.g., Bhowmick, ; Mandal et al, ; Sabba & Uyanik, ; Yunmin et al, ). Additionally, cutting edge research into characterization of carbonate rock with vuggy pores (e.g., Skalinski & Kenter, ) offers a potential for using similar seismic measurements and methods for mapping large macropores.…”

Section: Geophysics For Soil Structure Characterization: Concepts Andmentioning

confidence: 99%

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A Review of Geophysical Methods for Soil Structure Characterization

Romero-Ruiz

Linde

Keller

et al. 2018

Reviews of Geophysics

129

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The growing interest in the maintenance of favorable soil structure is largely motivated by its central role in plant growth, soil ecological functioning, and impacts on surface water and energy fluxes. Soil structure pertains to the spatial arrangement of voids and solid constituents, their aggregation, and mechanical state. As a fragile product of soil biological activity that includes invisible ingredients (mechanical and ecological states), soil structure is difficult to define rigorously, and measurements of relevant metrics often rely on core samples or on episodic point measurements. The presence of soil structure has not yet been explicitly incorporated in climate and Earth systems models, partially due to incomplete methodological means to characterize it at relevant scales and to parameterize it in spatially extensive models. We seek to review the potential of harnessing geophysical methods to fill the scale gap in characterization of soil structure directly (via impact of soil pores, transport, and mechanical properties on geophysical signals) or indirectly by measurement of surrogate variables (wetness and rates of drainage). We review basic aspects of soil structure and challenges of characterization across spatial and temporal scales and how geophysical methods could be used for the task. Additionally, we propose the use of geophysical models, inversion techniques, and combination of geophysical methods for extracting soil structure information at previously unexplored spatial and temporal scales.

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Section: Geophysical Methods In Soil Sciencementioning

confidence: 99%

Section: Geophysics For Soil Structure Characterization: Concepts Andmentioning

confidence: 99%

A Review of Geophysical Methods for Soil Structure Characterization

Romero-Ruiz

Linde

Keller

et al. 2018

Reviews of Geophysics

129

View full text Add to dashboard Cite

show abstract

“…However, this condition is not always found during the testing. In some cases, the velocity is not obviously affected by the presence of reinforcement [8]; furthermore, the reinforcement decreases the pulse velocity in concrete [9]. Therefore, it must be recognized that the exact evaluation of reinforced concrete in structures using ultrasonic methods is still challenging.…”

Section: Introductionmentioning

confidence: 99%

The study of ultrasonic pulse velocity on plain and reinforced damaged concrete

Kencanawati¹,

Akmaluddin²,

Anshari³

et al. 2018

MATEC Web Conf.

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Abstract. An ultrasonic pulse velocity (UPV) test is often applied to determine the quality of concrete structures. It is well known that there are several factors which can influence the reading of ultrasonic velocity in concrete. One of the factors is the presence of steel reinforcement. Therefore, this paper is intended to evaluate the ultrasonic pulse velocity propagation either in plain or reinforced damaged concrete. A study on sound concrete is also provided as a comparison. Three mixes of concrete were provided, with 25 MPa, 35 MPa, and 45 MPa target compressive strengths. The specimens were 200x200x200 mm cube concrete specimens and 100x150x1100 mm reinforced concrete beam specimens. Each specimen was examined for velocity readings in sound and damaged concrete (25% and 50% of maximum load). In all concrete grades of both plain and reinforced concrete, the ultrasonic velocity decreases as the damage level increases. During intact conditions, the velocity of reinforced concrete is around 4.5% higher than that of plain concrete. However, damaged reinforced concrete has a lower velocity than plain damaged concrete. Furthermore, a new equation for predicting ultrasonic pulse velocity in reinforced concrete is proposed.

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“…The statistical data analysis has been proven by Petro and Kim [6], Benaicha et al, [4], Vasanelli, et al, [16], Sabbag and Uyanik [11]. The normal distribution has parameters of the mean and standard deviation.…”

Section: B Data Normality Of the Direct Methodsmentioning

confidence: 98%

“…2. UPV testing results can be used to check homogeneity and control the quality of concrete [11] [12] [13] [14]. …”

Section: Experimental Program a Materials And MIX Proportionmentioning

confidence: 99%

Prediction of Lighweight Concrete Panel Homogeneity by Ultrasonic Pulse Velocity (UPV)

Santoso¹,

Widodo²,

Ma’arif³

2017

Proceedings of the International Conference on Technology and Vocational Teachers (ICTVT 2017)

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Abstract-Lightweight concrete is defined as concrete having a specific gravity ranging from 600-1600 kg/m 3 , the specific gravity of this concrete is lower than normal concrete. In this paper, the homogeneity of lightweight concrete panel wall is evaluated using the non-destructive -ultrasonic pulse velocity method. This study involved about 12 different composition panel wall and core tested in 28 days of age, the direct method was used on 180 monitoring points of specimens. The Influence of several factors on the experiment results were evaluated, including expanded polystyrene, polypropylene fibers, SCM thickness, and core wall panel thickness. Comparison between ultrasonic pulse velocity and empirical test showed that the ultrasonic pulse velocity is very useful to evaluate homogeneity and quality of composite materials.

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Prediction of reinforced concrete strength by ultrasonic velocities

Cited by 63 publications

References 22 publications

A Review of Geophysical Methods for Soil Structure Characterization

A Review of Geophysical Methods for Soil Structure Characterization

The study of ultrasonic pulse velocity on plain and reinforced damaged concrete

Prediction of Lighweight Concrete Panel Homogeneity by Ultrasonic Pulse Velocity (UPV)

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