Volume 18, Issue 48 (4-2018)                   jgs 2018, 18(48): 153-163 | Back to browse issues page


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bahrami S, baghaei N. Investigating the role of weathering on the quality and durability of building materials on the southern slopes of alluvial fans Chagatai. jgs 2018; 18 (48) :153-163
URL: http://jgs.khu.ac.ir/article-1-2546-en.html
1- Associate professor in Geomorphology, Faulty of Earth Sciences, Shahid Beheshti University, Tehran, Iran
2- MSc student of Geomorphology, Department of Physical Geography, Hakim Sabzevari University, Sabzevar, Iran , n.baghaei1990@gmail.com
Abstract:   (3936 Views)

Landforms and geomorphological processes is the most important factors that affecting dispersion and quality of building materials.  Case study, consisting of both new and old alluvial fans is located in the West of the city of Sabzevar. The aim of this study was to investigate the process of freezing and thawing in the durability and quality of materials taken from the alluvial fans old and new. To achieve this goal, we dug four wells in different parts of new and old of fans. The examples of large and small stones from the depths of one meter, two meters, three meters and four, wells were removed. Then to measure resistance of material, against freezing and thawing, freezing and thawing tests were performed on all samples. According to the test on three outcomes for this study was obtained. First: weight loss of samples of the new fans of head is greater, compared with other samples are taken   because of the waters. Second, samples of the new fans head because the waters have greater weight loss compared with other samples are taken. Therefore, samples of new fans is fine-grained as possible. Thirdly, if the target is high-quality materials, best materials is made of metamorphic minerals, such as andesite and pyroxene.

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Type of Study: Research | Subject: Geomorphology
Received: 2017/01/26 | Accepted: 2018/03/12

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