Physical, mechanical and durability properties of soil building blocks reinforced with natural fibres

Danso, Humphrey; Martinson, Brett; Ali, Muhammad; Williams, J.

doi:10.1016/j.conbuildmat.2015.10.069

Cited by 189 publications

(108 citation statements)

References 26 publications

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“…The density of fibre stabilised blocks in previous studies [8,26] was lower than that of the unstabilised blocks. This is possible because the fibres reduce the compact and dense nature of the blocks because the fibres are less dense [8,31,32]. …”

Section: Resultsmentioning

confidence: 69%

“…This can be explained that the cement acts like a gel and flows into the spaces in the soil reducing the air volume [24][25]. The density of fibre stabilised blocks in previous studies [8,26] was lower than that of the unstabilised blocks. This is possible because the fibres reduce the compact and dense nature of the blocks because the fibres are less dense [8,31,32].…”

Section: Resultsmentioning

confidence: 91%

“…A number of studies [3][4][5][6][7][8][9][10] have been conducted in the last decade by reinforcement. These studies have reinforced compressed earth blocks with mostly natural and artificial fibres.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation on the Properties of Compressed Earth Blocks Stabilised with a Liquid Chemical

Danso¹

2017

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Soil blocks are usually stabilised with cementing materials, fibres or chemicals to improve their performance properties for construction purpose. This study investigates the properties of compressed earth blocks stabilised with a liquid chemical (Pidiproof LW+). Experiment was conducted using 0.5, 1 and 1.5% weight contents of Pidiproof LW+ to produce compressed earth blocks and cured at 7, 14, 21 and 28 days. The blocks were tested for density, absorption coefficient, compressive strength and splitting tensile strength. It was found that with the exception of density test, the chemical inclusion in the other tests significantly improved the performance properties of the compressed earth blocks. Furthermore, the higher chemical content (1.5%) inclusion in the compressed earth block provided better performance properties. The paper concludes that the inclusion of the liquid chemical in the compressed earth blocks generally improved the performance properties of the blocks. Recommendation is made to the use of other chemicals for applicability in earthen construction.

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Section: Resultsmentioning

confidence: 69%

Section: Resultsmentioning

confidence: 91%

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Experimental Investigation on the Properties of Compressed Earth Blocks Stabilised with a Liquid Chemical

Danso¹

2017

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“…are energy-intensive materials, commonly used for building construction. Generally, these materials are transported over great distances (Danso [22,23]). Extensive use of these materials can drain the energy resources and adversely affect the environment (Reddy [24]).…”

Section: Environmental Dimensionmentioning

confidence: 99%

Dimensions and Indicators for Sustainable Construction Materials: A Review

Danso¹

2018

RDMS

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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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Physical, mechanical and durability properties of soil building blocks reinforced with natural fibres

Cited by 189 publications

References 26 publications

Experimental Investigation on the Properties of Compressed Earth Blocks Stabilised with a Liquid Chemical

Experimental Investigation on the Properties of Compressed Earth Blocks Stabilised with a Liquid Chemical

Dimensions and Indicators for Sustainable Construction Materials: A Review

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

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