Influence of Petrographic Properties on the Strength and Durability of Dolomite and Limestone for Infrastructure Development

Abstract

The paper presents the basic problem related with practical application of carbonate rocks in construction: are carbonate aggregates produced from such rocks favorable for building engineering, particularly for construction? (1) the geological-engineering properties of aggregates are presented, (2) the correlation between petrographic and engineering. This knowledge has allowed to assess the usefulness made from dolomite and limestone design and construction structures. petrography was characterized using optical microscopy and scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscope (EDS). Engineering properties were determined in accordance with European and Polish norms and guidelines. Statistical and design calculations were performed using dedicated software. The petrographic properties, and selected physical and mechanical parameters of the aggregates, were tested to show their influence on the unconfined compressive strength and unconfined tensile strength. Strong functional relationships between the unconfined compressive strength, unconfined tensile strength and water absorption, have been observed. The support the sustainable use of locally available limestone resources in Pakistan and provide guidance for material selection in pavements, foundations, and other structural applications. These findings have direct economic implications for building and infrastructure design and promote more efficient and rational use of regional rock resources in the construction industry