Prediction of splitting crack growth in prestressed concrete members using fracture toughness and concrete mix design

Dastgerdi, Aref Shafiei; Peterman, Robert J.; Savic, Adrijana; Riding, Kyle A.; Beck, B. Terry

doi:10.1016/j.conbuildmat.2020.118523

Construction and Building Materials

2020

DOI: 10.1016/j.conbuildmat.2020.118523

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Prediction of splitting crack growth in prestressed concrete members using fracture toughness and concrete mix design

Aref Shafiei Dastgerdi

Robert J. Peterman

Adrijana Savic

et al.

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Cited by 8 publications

(1 citation statement)

References 13 publications

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“…The research was conducted at Kansas State University with focus to identify the best possible prestressed tie design to avoid possible damages in the field [8][9][10] Three prisms were fabricated each time having different cross sections due to different thicknesses of concrete cover. In this research three different concrete mixtures, two different compressive strengths of concrete (4500 psi and 6000 psi), and seven wire types were investigated.…”

mentioning

confidence: 99%

Suggested Qualification Test Procedure to Secure Splitting Resistance in Pretensioned Concrete Members

Savic

Peterman

Beck

2021

AEF

Self Cite

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Prestressed concrete ties could develop end-splitting cracks along tendons due to lateral bursting stresses. The lateral bursting stresses can form due to Hoyer effect (change in diameter of the prestressing tendons due to Poisson’s ratio), the jacking force in the tendons, geometrical features and indent characteristics of the prestressing tendons. End-splitting cracks can occur immediately after de-tensioning procedure in some cases, but they also can be developed during the first weeks after de-tensioning procedure due to sustained lateral stresses exerted by the prestressing tendons. The ability of concrete to resist these bursting stresses without cracking is primarily the function of the thickness of concrete cover, the type of concrete mixture used and the maximum compressive strength of the concrete. Qualification test will be great tool for prestressed concrete tie manufacturers to identify tie designs that may be susceptible to end-splitting cracks. This test was formally adopted as section 4.2.4 in Chapter 30 of the 2021 AREMA Manual for Railway Engineering.

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confidence: 99%

Suggested Qualification Test Procedure to Secure Splitting Resistance in Pretensioned Concrete Members

Savic

Peterman

Beck

2021

AEF

Self Cite

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Experimental studies on rheological, mechanical, and microstructure properties of self‐compacting concrete containing perovskite nanomaterial

Bahari

Sadeghi‐Nik

Shaikh

et al. 2021

Structural Concrete

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This article presents the effect of LaSrCoO3, oxides commonly known as LSCO nanomaterials, on rheological, mechanical and microstructural properties of self‐compacting concrete (SCC). LSCO nanomaterials contents of 1–4 wt% are considered in this study. Compressive, flexural and split tensile strengths of SCC mixes are evaluated at curing ages of 7, 28, and 90 days. The effect of LSCO nanomaterials on the microstructures of above concretes is also evaluated using Fourier transform infrared spectroscopy, scanning electron microscopy, X‐ray diffraction, thermogravimetric analysis techniques, Williamson–Hall equation, and X‐Powder software. Results show that workability of SCC mixes decrease with increase in LSCO nanomaterials. Increases are observed in compressive, flexural and split tensile strengths in SCC mixes when LSCO nanomaterials contents increase up to 2 wt%, followed by a decreasing trend which indicate 2 wt% as being the optimum amount. The microstructural analysis by means of various techniques also revels compact microstructure of cement matrix in SCC mixes containing 2 wt% LSCO nanomaterials, confirming the results of mechanical properties.

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Investigating the tensile strength of concrete-gypsum interface using the ring type bi-material specimens

Haeri¹,

Sarfarazi

Marji

2021

Arab J Geosci

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Prediction of splitting crack growth in prestressed concrete members using fracture toughness and concrete mix design

Cited by 8 publications

References 13 publications

Suggested Qualification Test Procedure to Secure Splitting Resistance in Pretensioned Concrete Members

Suggested Qualification Test Procedure to Secure Splitting Resistance in Pretensioned Concrete Members

Experimental studies on rheological, mechanical, and microstructure properties of self‐compacting concrete containing perovskite nanomaterial

Investigating the tensile strength of concrete-gypsum interface using the ring type bi-material specimens

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