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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.17 No.6
- 발행연도
- 2023.11
- 수록면
- 1,009 - 1,032 (24page)
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초록· 키워드
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One of the major gaps in previous research on the mechanical behavior of ballasted railway tracks converted into slab tracks using the preplaced aggregate concrete technique is its durability against freezing and thawing cycles. The present study pioneers at investigating the Preplaced Ballast Aggregate Concrete (PBAC) deterioration during freezing–thawing cycles, in which several freeze–thaw tests were carried out to measure the weight loss of PBAC samples during various freezing–thawing cycles, as well as the reduction in both compressive/tensile strengths and the relative dynamic modulus of elasticity. Moreover, the image acquisition of the PBAC samples was performed using a digital microscope and subsequently, an image processing technique was utilized to find a relation between the surface defect area at each imposed cycle and the number of cycles as a lifetime representative. As a result, an equation was developed to predict the defect frequency versus imposed cycles and the defect area generated to find the serviceability lifetime of PBAC in aggressive weather conditions. It
목차
Abstract
1 Introduction
2 Laboratory Tests
3 Materials And Methods
4 Results and Discussion
5 Conclusions
References
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