Effects of Acid Rain on Physical and Mechanical Properties of Travertine

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Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
One of the problems caused by air pollution is acid rain. The development of urban communities and subsequent use of air polluting vehicles on the one hand and the widespread use of travertine in building facades in Iran on the other hand have doubled the study of the effect of acid rain on the properties of travertine. In this study, three types of travertine (Travertine B, Travertine D and Travertine R) were studied. This paper investigates the effect of the rain at four pH (2.5, 4, 5.5 and 7) on its physical properties including effective porosity, longitudinal wave velocity and permeability, and its mechanical properties including tensile strength and uniaxial compressive strength. The results showed that as the pH decreases, the effective porosity increased and the longitudinal wave velocity, tensile strength and uniaxial compressive strength decreased. The highest increase in effective porosity due to decreasing pH was related to travertine B and the lowest increase was related to travertine R. The highest decrease in longitudinal wave velocity, tensile strength, and uniaxial compressive strength due to decreasing pH was related to travertine B and the lowest decrease was related to travertine R.
Language:
Persian
Published:
Journal of Mineral Resources Engineering, Volume:6 Issue: 3, 2021
Pages:
83 to 97
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