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Open AccessArticle

Predicting Unconfined Compressive Strength Decrease of Carbonate Building Materials against Frost Attack Using Nondestructive Physical Tests

1
School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China
2
Faculty of Engineering, Mining and Petroleum Engineering Department, Al-Azhar University, Cairo 11884, Egypt
3
Key Laboratory of Mineral Resources Processing and Environment of Hubei Province, Luoshi Road 122, Wuhan 430070, China
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(4), 1379; https://doi.org/10.3390/su12041379 (registering DOI)
Received: 23 January 2020 / Revised: 2 February 2020 / Accepted: 9 February 2020 / Published: 13 February 2020
(This article belongs to the Special Issue Sustainable Construction and Building Materials for Environment)
Carbonate building materials and engineering constructions are exposed to severe seasonal environmental fluctuations and result in a full or partial disintegration, especially in cold regions, and employment of nondestructive methods for evaluating the durability of building materials subject to frost weathering is gaining great significance. This research aims to obtain reliable relationships between unconfined compressive strength decrease and nondestructive parameters variations of limestone types under frost conditions and provide useful information regarding their durability in order to ensure the long-term viability or sustainability of these materials used for constructions against frost conditions. In this study, five important types of Chinese limestone used as construction materials were subjected to 50 frost cycles. Unconfined compressive strength, compressional wave velocity and spatial attenuation, and porosity were obtained at the end of every 10 cycles. As a result of progression in frost cycles, the increase and decrease rates were determined at the end of every 10 cycles, and the relationships between them were obtained to predict the loss ratios of unconfined compressive strength (RDσc). Results indicated that at the end of 40th cycles, there was a high correlation between RDσc and spatial attenuation loss with an R2 of 0.8584. Furthermore, there was also a strong relationship between RDσc and compressional wave velocity decrease after the end of 20th and 50th cycles with an R2 of 0.9089 and 0.9025, respectively. Therefore, these relations are reliable to provide useful information for durability and viability of studied samples under frost conditions and support the use of the ultrasonic measurements. It can also be successfully used for pre-estimation of unconfined compressive strength loss of studied limestone types against frost weathering without any tests. View Full-Text
Keywords: frost weathering; unconfined compressive strength; compressional wave velocity; spatial attenuation; durability; sustainable building materials; Limestone frost weathering; unconfined compressive strength; compressional wave velocity; spatial attenuation; durability; sustainable building materials; Limestone
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Abdelhamid, M.M.A.; Li, D.; Ren, G. Predicting Unconfined Compressive Strength Decrease of Carbonate Building Materials against Frost Attack Using Nondestructive Physical Tests. Sustainability 2020, 12, 1379.

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