Physico-Mechanical Characteristics of Limestone Blocks from the Republic of Moldova

Abstract

The present experimental study aims to contribute to the knowledge of the physical-mechanical properties of limestone blocks quarried in the Republic of Moldova. Apparent density, water absorption and compressive strength are examined based on laboratory work. The masonry material - limestone blocks are characterized both in comparison with other types of masonry materials and by comparing the compressive strength with other types of limestones. The analysed limestone samples were taken from 3 limestone quarries located in different areas on the territory of the Republic of Moldova. The results showed that limestone blocks from Moldova have better properties than AAC and some bricks. The materials used in the experimental work were selected to be representative of the mechanical characteristics present in old and existing buildings in Chisinau. This research is significant for the variation of the physical-mechanical properties of Moldovan limestone blocks compared to the same properties of other types of masonry blocks.

The Use of Limestone Blocks in a New Masonry Technology

“…The initial shear strength determined showed us that the limestone blocks from mine II are stronger compared to the other two, having better physical properties. [1] The results obtained for the tested limestone blocks are in the range of 33-44 MPa, which allows us to perform further strength calculations for the masonry technology presented in the study.…”

“…The main advantages of limestone blocks for construction are durability, wear resistance, thermal conductivity, high ecological and biocompatibility with the human body, and remarkable natural antiseptic and antiallergic properties. [1] Some recent studies have focused on the properties and durability of limestone blocks. Limestone has a varied typology, for construction purposes, it is important to classify it according to its structure.…”

“…The properties of limestone blocks from Moldova were presented in the article "Physicomechanical characteristics of limestone blocks from the Republic of Moldova" [1], and based on the laboratory data in the article, laboratory work was carried out on shear strength and calculations were made for a new masonry technology, presented later in this research.…”