Strength and stress–strain characteristics of traditional adobe block and masonry

Wu, Feng; Li, Gang; Li, Hong‐Nan; Jia, Jinqing

doi:10.1617/s11527-012-9987-y

Cited by 78 publications

(26 citation statements)

References 18 publications

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“…Nazeen et al [23] reported that strength of the masonry increases with an increase in strength of the mortar. Vicentan and Torrealva [22,24] in a similar experimental investigation reported values of prism compressive strength of the traditional adobe in the range between 0.36MPa and 1MPa, and strain between 0.5% and 3%. It It is noted that typical failure mode of unreinforced masonry is characterised by vertical crack across the bricks and mortar joints.…”

Section: Prism Testmentioning

confidence: 95%

Role of fiber inclusion in adobe masonry construction

Kafodya

Okonta

Kloukinas

2019

Journal of Building Engineering

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Adobe masonry construction constitutes a notable portion of the buildings in both urban and rural areas in less developed countries. Seismic performance of adobe buildings is poor, and lowcost retrofitting measures are required to enhance the resilience of such buildings during an earthquake. In this study, mechanical properties of fiber reinforced and unreinforced adobe masonry were investigated. Sisal fibers with length of 25mm were used as reinforcing elements for mortar and adobe bricks at a fiber content of 0.75%. A series of laboratory tests were performed on masonry triplets, couplets and prisms to determine shear strength, tensile resistance and compressive strength, respectively. Uniaxial compression and diagonal compression shear tests were performed on wallets and wall panels, respectively to determine compressive strength and shear strength of the adobe masonry. Finite element linear elastic analysis was conducted using ANSYS Finite-Element code to evaluate the stress state of loaded wall panels. The structural design of adobe masonry walls was carried out according to BS5628 and Eurocode 6 standards, by utilising material properties acquired from the experiments. The results showed that fiber inclusion in the mortar caused an increase in tensile strength of 31%, friction coefficient of 22%, and prism compressive strength of 25% compared with unreinforced mortar. The reinforced wallets exhibited a twofold increase in compressive strength while reinforced wall panels indicated threefold increase in shear strength. The stress state in the reinforced and unreinforced wall panels was not a pure shear state and was better described by RILEM recommendations. The allowable vertical load resistance was found to be 40kN/m and 100kN/m for unreinforced and reinforced walls, respectively. The allowable lateral shear resistance was found to be 25kN/m and 80kN/m for unreinforced and reinforced walls, respectively. Reinforced masonry elements exhibited considerable ductility and unreinforced masonry elements showed brittle behaviour.

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Section: Prism Testmentioning

confidence: 95%

Role of fiber inclusion in adobe masonry construction

Kafodya

Okonta

Kloukinas

2019

Journal of Building Engineering

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“…Durante la ejecución de los ensayos fue liberado el movimiento de la placa superior del actuador para reducir los efectos 20 % y el 40 % de limos y entre el 10 % y el 25 % de arcillas (14). Asimismo, el tamaño y contenido de la fibra añadida y su longitud también afectan directamente a las propiedades mecánicas (19).…”

Section: Configuración De Los Ensayos Experimentalesunclassified

“…Cuando la carga aplicada adquiere valores comprendidos entre el 60 % y el 70 % de la carga máxima comienzan a surgir las primeras grietas en los especímenes ensayados. Esta tipología de fallo es típica en los ensayos de compresión uniaxial de mampostería de fábrica de ladrillo cocido y también ha sido observado por otros autores en ensayos de mampostería de adobe y otros tipos de mampostería (13,14,16,30).…”

Section: Mecanismos De Fallounclassified

“…De forma general, las principales características que afectan a la resistencia a compresión de un ladrillo de adobe son: las propiedades del suelo, las propiedades de las fibras de refuerzo, la densidad seca, la geometría del especimen y el contenido de humedad (14). Asimismo, el comportamiento a compresión de la mampostería de adobe se caracteriza por un mecanismo de fallo con agrietamiento vertical similar a la mampostería de ladrillo cocido, poca influencia de la resistencia a compresión del mortero en la resistencia compresión de la mampostería y por el aumento de la rigidez de la mampostería con el incremento de la resistencia a compresión del ladrillo de adobe (15,16).…”

Section: Introductionunclassified

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Hacia una metodología para la caracterización experimental del comportamiento a compresión de la mampostería de adobe

Rodríguez-Mariscal

Solís

2020

Inf. constr.

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En la Península Ibérica existen numerosas viviendas y elementos patrimoniales construidos con tierra cruda. Por otro lado, actualmente hay una tendencia creciente a revitalizar el empleo de este material en la arquitectura moderna debido a su valor ecológico y arquitectónico. Sin embargo, existe aún una falta de conocimiento científico acerca de su comportamiento mecánico, así como una falta de especificaciones para realizar una caracterización rigurosa. En este artículo se realiza un análisis experimental en aras de desarrollar una metodología para la caracterización de la mampostería de ladrillos de adobe como material estructural. Se plantean cuestiones metodológicas relativas a la obtención de las deformaciones de los especímenes y se analizan las propiedades mecánicas de la mampostería de adobe y los mecanismos de fallo. La presente investigación estudia concretamente el comportamiento mecánico de mampostería de adobe fabricada con tierra proveniente de la rivera del Guadalquivir en Sevilla (España) a compresión simple.

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“…Results with Prediction Models e proposed empirical expression for the compressive strength of stabilized earth block masonry is examined for its fitness by comparing it with experimental data obtained in eleven different studies published [4,18,[26][27][28][29][30][31][32][33][34]. e details of the data are given in Table 9.…”

Section: Comparison Of Past Experimentalmentioning

confidence: 99%

Prediction of Compressive Strength of Stabilized Earth Block Masonry

Sajanthan

Balagasan

Sathiparan

2019

Advances in Civil Engineering

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e present study investigates the compressive strength of cement-stabilized earth block masonry prisms with a number of masonry units and joint layer mortar combinations. e compressive strength of masonry was determined to be performed by uniaxial tests on 144 masonry prisms. e simple relationship has been identified for obtaining the compressive strength of stabilized earth block masonry from their corresponding block and mortar compressive strength. e predicted compressive strength of masonry prisms using the proposed expression is compared with 14 empirical equations and experimental data of past research available in the published literature. e compressive strength predicted by the expression proposed in the present study was found to be in good agreement with corresponding experimental data compared with other empirical equations available in the published literature.

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Strength and stress–strain characteristics of traditional adobe block and masonry

Cited by 78 publications

References 18 publications

Role of fiber inclusion in adobe masonry construction

Role of fiber inclusion in adobe masonry construction

Hacia una metodología para la caracterización experimental del comportamiento a compresión de la mampostería de adobe

Prediction of Compressive Strength of Stabilized Earth Block Masonry

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