The effects of the fiber contents on the mechanic properties of the adobes

Yetgin, Şükrü; Çavdar, Özlem; Çavdar, Ahmet

doi:10.1016/j.conbuildmat.2006.08.022

Cited by 158 publications

(94 citation statements)

References 9 publications

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“…Using SP energy, density increases significantly with respect to the tamping foot compaction technique, with a dry bulk density [1] of around 2.0 g/cm 3 and a wet density (with around 6% humidity) [2] of around 2.2 g/cm 3 ; logically, real density (G) is the same as indicated above, and compressive strength tested on oven-dried samples is around 3.5 MPa. The MP test was not included in the protocol because the densities and strength obtained after spraying only approach SP values.…”

Section: Adapting the Materialsmentioning

confidence: 96%

“…These products are not always suitable due to the wide variety of textures found in different rammed earth structures or to the poor solubility of Ca (OH) 2 (16). However, geopolymer binders can be an effective alternative for consolidating earth-based architectural structures, while Izaguirre et al (17) managed to improve the properties of lime mortars by adding natural polymers (commercial starch).…”

Section: Introductionmentioning

confidence: 99%

“…Most research and advances in the use of earthbased construction materials has focussed on strengthening adobe as a material, or on the study of compressed stabilized earth blocks (CSEB) (2)(3)(4)(5), which in Spain is the only existing standard governing earthen building materials (6). There are few standards governing rammed earth construction (7): Zimbabwe introduced the SAZS 724 standard (8) and in India the IS 2110 standard (9) applies to soilcement walls.…”

Section: Introductionmentioning

confidence: 99%

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A new procedure to adapt any type of soil for the consolidation and construction of earthen structures: projected earth system

2015

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ABSTRACT:The "projected earth system" is put forward as an alternative construction method. The soil from each site is adapted following a specific protocol to make it suitable for spraying. The type of construction and the receiving surface determine the machinery and spraying system used (dry or wet mix). The result will be similar in texture and colour to the original material (in the case of earth walls) or to the surrounding material. RESUMEN:Un procedimiento nuevo para adaptar cualquier tipo de suelo para la construcción y consolidación de estructuras de tierra: Sistema de Tierra Proyectada. Se plantea la "tierra proyectada" como nuevo sistema constructivo. Se adecuará la tierra de cada intervención con un protocolo para poder ser proyectada. El tipo de intervención y el soporte sobre el que se proyectará determinarán la maquinaria y el sistema de proyección (vía seca o húmeda). El resultado tendrá similar textura y color que el soporte restaurado (en muros de tierra) o que el material del entorno (en taludes carreteros u obras de tierra de nueva construcción).

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Section: Adapting the Materialsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new procedure to adapt any type of soil for the consolidation and construction of earthen structures: projected earth system

2015

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“…To improve the mechanical strength, impermeability and the durability of locally produced adobe, in general, small amounts of quicklime or natural fibres are added to the soil matrix [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The use of local natural fibres, especially in developing countries, is more beneficial for the population as fibres are locally available in abundance and their productions are of low cost and low consuming energy besides are not polluting.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of Pressed Adobe Blocks reinforced with Hibiscus cannabinus fibers

Millogo¹,

Morel²,

Aubert³

et al. 2014

Construction and Building Materials

242

115

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“…Straw reinforcement (based on the cereal teff, Eragrostis abyssinica, a crucial indigenous staple in Ethiopia) is a common structural element in mud houses in the country. Fibre reinforced mud structures are subjects of recent investigations that have shown the enhanced properties achieved due to the use of plant fibrous materials like the straw inclusions [13][14][15][16][17][18]. The fine-textured preparatory layer was applied thinly onto the earth/mud preparation and in turn made to receive the painting layer.…”

Section: Structure Of the Paintingmentioning

confidence: 99%

Multi-analytical investigation into painting materials and techniques: the wall paintings of Abuna Yemata Guh church

2016

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Abuna Yemata Guh is one of the nine Saints who are traditionally claimed to have come to Northern Ethiopia in the beginning of the sixth century and established monasteries in the Tigray region. The church, named after him, is hewn out of the side of one of the highest sandstone spires in the Gheralta area. Though the local tradition claims earlier dates, the paintings in the church are suggested to belong to the second half of the fifteenth century on the basis of their theme, style and iconography. We report here the investigation into the materials and techniques of the paintings using diverse complementary analytical techniques: Polarized light microscopy (PLM), portable X-ray fluorescence spectrometer (pXRF), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), synchrotron-based X-ray diffraction (SR-XRD), pyrolysis gas chromatography-mass spectrometry (Py-GC/MS), microRaman spectroscopy (MRS) and micro-Fourier transform infrared spectroscopy (micro-FTIR). Earth materials based on hematite, goethite and terra verte were the main findings, but cinnabar, orpiment, lead white and carbon black were also identified. The stratigraphic analyses of samples from different locations coupled with SR-XRD analysis indicated the presence of anhydrite, gypsum, calcite and lime in the preparation layer. The pigments identified together with close visual examination showed repainting and retouching within the area in which the Marian figure is depicted, as well as in a nearby figure. The ground preparatory layer consisted of red mud reinforced by straw applied to the chiseled sandstone support. The egg-based binding medium suggests that tempera technique was used. Technical studies of Ethiopian wall paintings are scant, but highly needed as this world heritage is threatened due to limited conservation. Our documentation of the materials and techniques is therefore aimed to stem this loss, as well as to provide information for art historical studies.

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The effects of the fiber contents on the mechanic properties of the adobes

Cited by 158 publications

References 9 publications

A new procedure to adapt any type of soil for the consolidation and construction of earthen structures: projected earth system

A new procedure to adapt any type of soil for the consolidation and construction of earthen structures: projected earth system

Experimental analysis of Pressed Adobe Blocks reinforced with Hibiscus cannabinus fibers

Multi-analytical investigation into painting materials and techniques: the wall paintings of Abuna Yemata Guh church

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