Mechanical properties of three-leaf masonry walls constructed with natural stones and mud mortar

Meimaroglou, Nikiforos; Mouzakis, Harris P.

doi:10.1016/j.engstruct.2018.06.015

Cited by 23 publications

(15 citation statements)

References 17 publications

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“…The actual mechanical behaviour of such structural elements is undoubtedly affected by the low resistance in traction of the constituents, particularly as regards the weaker component. The behaviour of multi-leaf masonry walls has been reported in the literature [8][9][10][11][12][13][14], as well as material characterization of three-leaf masonry walls [3,[15][16][17][18] and the utilized strengthening techniques [19][20][21][22][23][24]. The characterization and assessment of the degradation state of historical buildings, including multi-leaf masonry walls, have also been reported in the literature [3,25,26].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations and Microstructural Characterization of Construction Materials of Historic Multi-Leaf Stone-Masonry Walls

et al. 2021

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In order to correctly define the pathology of multiple-leaf stonemasonry walls and determine the appropriate interventions for its conservation and preservation, comprehensive studies on its building materials should be carried out since the overall behaviour of masonry structures is highly dependent on the characterization of its construction materials. Consequently, an interdisciplinary procedure for construction material characterization used in multiple-leaf stone-masonry walls in Egypt has been implemented to enrich documentation, conservation and restoration issues of this type of wall. The research methodology integrates experimental data obtained through on-site sampling, conducted tests and analyses, historical information, and field survey observations. The fundamental physical and mechanical properties of the masonry elements were examined by incorporating stone blocks, mortars and core-infill materials. The mineralogical composition and interlocking textures of the collected samples were investigated utilizing a large range of complementary investigation and analysis techniques, including polarizing microscopy, X-ray diffraction (XRD), thermal analysis (TG/DTA), and environmental scanning electron microscope (ESEM) attached to an EDX unit. Through the results thus obtained, a complete characterization of the mineralogical composition; physical–mechanical, chemical, and thermal properties; and the interlocking textures of the construction materials of both the outer and inner-core layers was performed. The outer leaves of the majority of the multiple-leaf stone-masonry walls in medieval architectural heritage were mainly built of well-dressed limestone blocks with nearly uniform dimensions, while the inner-core layer was usually built of stone-rubble infill with bending lime-based mortar. The uniaxial compressive strengths of core infill (corresponding to the inner core layer) and lime-based mortar of the embedded joints are shown to be 85 and 92.5% lower than the limestone units of the outer layer, respectively. Moreover, experimental observations indicate that the inner core layer exhibits the highest porosity values; consequently, deteriorated, loose and cohesionless core infill could greatly affect the durability and thermal resistivity of this kind of wall. The results provide scientific support for investigating the overall structural behaviour of this type of walls and for decision-making in future conservation and restoration strategies.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigations and Microstructural Characterization of Construction Materials of Historic Multi-Leaf Stone-Masonry Walls

et al. 2021

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“…The compressive strength was obtained by a uniaxial compression test conducted on a 70 mm standard cubic specimen, and the elasticity modulus was determined by a test performed on a Φ50×100 mm cylindrical specimen. The tensile strength and bending strength of the materials significantly impact the masonry strength [18][19][20]. A bending test was carried out on a cuboid specimen with dimensions of 50×50×250 mm, and a splitting tensile test was conducted on a Φ50×30 mm cylindrical specimen.…”

Section: Base Materials Of Tibetan Rubble Stone Masonry and Its Mechanical Propertiesmentioning

confidence: 99%

“…The two types of specimens were both Φ50×100 mm cylinders. After curing for 28 days under natural conditions, compression tests were performed on the specimens at a speed of 10 N/s [19,20,23]. Table 4 shows the basic properties of the mortar that were obtained from the tests.…”

Section: Base Materials Of Tibetan Rubble Stone Masonry and Its Mechanical Propertiesmentioning

confidence: 99%

“…Since the testing machine had great rigidity, it could apply loads at fixed strain rates. Based on prior research results [19,20,22], the loading speed was chosen to be 2 mm/min. The testing machine was equipped with a built-in sensing system, and the vertical displacement of the testing machine was taken to be the vertical deformation of the specimens.…”

Section: Compression Test Of Tibetan Rubble Stone Masonry Structuresmentioning

confidence: 99%

“…The studies used different methods (e.g., grouting and reinforcement) to consolidate the rubble stone masonry walls, and the references provided suggestions for the reinforcement and repair of rubble stone masonry structures in ancient European buildings. Results of previous studies [18][19][20] indicated that test costs and periods can be reduced by obtaining the compressive strength and elasticity modulus of specimens based on tests of prismatic specimens built with the same materials. Moreover, Eurocode 6 [21] also analyzed the mechanical properties of rubble stone masonry by testing prismatic specimens.…”

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Mechanical Properties of Tibetan Rubble Stone Masonry Under Uniaxial Compression

Wang

Tie-jun

Wang

et al. 2021

Preprint

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Basic mechanical properties of Tibetan rubble stone masonry, a unique architectural structure in western China, may affect the bearing capacity of architectural structures. In this study, a compression test was carried out on a Tibetan rubble prism to investigate its failure mechanism and stress-strain characteristics under uniaxial compression. Based on the experimental results, we obtained two simple compression constitutive models for Tibetan rubble stone masonry, established equations applicable to predicting the compressive strength of Tibetan rubble stone masonry, and obtained a relationship between compressive strength and the elasticity modulus through a regression analysis.

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Preliminary Assessment of the Resistance Characteristics and Dynamic Behavior of the San Francisco of Assis Church in Marcapata, Cusco-Perú

Montesinos,

Rojas-Bravo,

Valer

et al. 2023

RILEM Bookseries

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Mechanical properties of three-leaf masonry walls constructed with natural stones and mud mortar

Cited by 23 publications

References 17 publications

Experimental Investigations and Microstructural Characterization of Construction Materials of Historic Multi-Leaf Stone-Masonry Walls

Experimental Investigations and Microstructural Characterization of Construction Materials of Historic Multi-Leaf Stone-Masonry Walls

Mechanical Properties of Tibetan Rubble Stone Masonry Under Uniaxial Compression

Preliminary Assessment of the Resistance Characteristics and Dynamic Behavior of the San Francisco of Assis Church in Marcapata, Cusco-Perú

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