Effect of Freezing-Thawing Cycles on the Physical and Mechanical Properties of Some Sedimentary Rocks Located Near Mosul City

Mohammed Nuri, Thamer; Abbo Awad, Moafaq; Mohamad Azhar Msbah, Asaad

doi:10.30684/etj.29.16.11

	Effect of Freezing-Thawing Cycles on the Physical and Mechanical Properties of Some Sedimentary Rocks Located Near Mosul City
Engineering and Technology Journal
Article 1, Volume 29, Issue 16, 2011, Pages 3388-3404 PDF (276.52 K)
DOI: 10.30684/etj.29.16.11
Authors
Thamer Mohammed Nuri; Moafaq Abbo Awad; Asaad Mohamad Azhar Msbah
Abstract
This study is aimed to investigate the surfacial deterioration of some common sedimentary rocks near Mosul city as a result of freezing-thawing cycles on physical and mechanical properties of two types of Limestone denoted as (L1 and L2), Sandstone (S) and Mosul Marble (M). Physical and mechanical tests include; uniaxial, triaxial compression tests, point load test and the indirect tensile strength (Brazilian test) have been performed on both the fresh specimens and the specimens subjected to a number of freezing-thawing cycles (5, 10, 15 and 20). Test results showed that the freezing and thawing is a process of physical deterioration, a significant reduction in different percentages in uniaxial and triaxial compressive and tensile strength was observed in all the rocks tested. A little variation was observed in the slaking durability indices (IS-D) of (L1, L2 and M) rocks among three conducted cycles at fresh state, while (S) rock showed high percent loss of about 45.81% in its durability. On the other hand, the water absorption percent of the tested rocks showed a clear increase with the increase of number of freezing-thawing cycles.
Keywords
Freezing; thawing cycles; Deterioration; durability; sedimentary rocks

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