Physio-Mechanical Properties and Petrographic Analysis of NikanaiGhar Limestone KPK, Pakistan
Physio-Mechanical Properties and Petrographic Analysis of NikanaiGhar Limestone KPK, Pakistan作者机构：Geological Resources and Engineering China University of Geosciences Wuhan China Institute of Geophysics and Geomatics China University of Geosciences Wuhan China Geological Engineering China University of Geosciences Wuhan China Department of Oil and Gas Engineering China University of Geosciences Wuhan China
出 版 物：《Open Journal of Civil Engineering》 (土木工程期刊（英文）)
年 卷 期：2022年第12卷第2期
页 面：169-188页
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：Potential Aggregates Geotechnical Study Petrographic Analysis Regression Analysis NikanaiGhar Limestone
摘 要：Petrographic, physical, and mechanical assessment investigation of NikanaiGhar limestone aggregate exposed in the Lower Dir area of Malakand Division, Pakistan, were conducted to evaluate and investigate its potential for use as a construction material for engineering projects. Different geotechnical tests and petrographic analyses were performed to evaluate its potential for construction purposes. Geotechnical tests include unconfined compressive strength, ultimate tensile strength test, specific gravity, share strength, porosity, and water absorption. The evaluated physical attributes were compared to standard specifications to determine their suitability as a construction material. Petrographic investigation indicates mainly two types of stones. Stylolitic spar stone and Spar stone are metamorphosed equivalent limestones and are not prone to alkali-silica reactivity. Mutual relationships between physical parameters have been described by simple regression analysis. Significant direct correlation of specific gravity with ultimate tensile strength and uniaxial compressive strength was noted. However, negative trends of Porosity with ultimate tensile strength and uniaxial compressive strength were observed which is in accordance with standard. The analysis revealed that the limestones of NikanaiGhar Formation fall within the standard specification limits and can be used as aggregates for the indigenous construction industry.
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