Strength enhancement of Eskisehir tuff ashlars in Turkey

Emir, Ercan; Konuk, Adnan; Daloğlu, Gülnaz

doi:10.1016/j.conbuildmat.2011.02.005

Cited by 12 publications

(4 citation statements)

References 12 publications

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“…This section discusses the sources of origination of solid waste and the worriment associated with its management 5 . The country’s vast population is liable for the mammoth generation of solid waste.…”

Section: Introductionmentioning

confidence: 99%

Development of sand-plastic composites as floor tiles using silica sand and recycled thermoplastics: a sustainable approach for cleaner production

Soni

Das

Yusuf

et al. 2022

Sci Rep

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Strict environmental concerns, depleting natural recourses, and rising demand for building construction materials have promoted scientific research toward alternative building materials. This research supports the idea of sustainability and a circular economy via the utilization of waste to produce value-added products. The research explored the potential of waste plastics and silica sand for developing thermoplastic composite as floor tiles. The samples were characterized by water absorption, compressive strength, flexural strength, and sliding wear. The morphological analysis of the sand-plastic interfaces was covered under the umbrella of this study. The maximum compressive and flexural strength were found to be 46.20 N/mm2 and 6.24 N/mm2, respectively, with the minimum water absorption and sliding wear rate of 0.039% and 0.143 × 10–8 kg/m, respectively. The study suggests the workability of the developed floor tiles in non-traffic areas of public places. Thus, the study provides a green building material through recycling waste plastics for sustainable development.

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Section: Introductionmentioning

confidence: 99%

Development of sand-plastic composites as floor tiles using silica sand and recycled thermoplastics: a sustainable approach for cleaner production

Soni

Das

Yusuf

et al. 2022

Sci Rep

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“…Tuff, a special kind of rock and widely distributed in earth crust, is formed after sedimentation and high temperature and characterized by lower density, high porosity, and easiness to deform after water softening [1][2][3][4][5]. e issue of tuff strata cannot be avoidable on many engineering constructions, for instance, deep-buried long tunnels [6] and deep underground geological disposal site [7].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Physicomechanical Properties and Constitutive Model of Tuff in Mila Mountain Tunnel under Dry and Saturated Conditions

Pei

Cui

et al. 2021

Advances in Civil Engineering

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Many tunnel engineering accidents are generally caused by water softening tuff of high porosity. Experimental and theoretical analytical methods, including rock ultrasonic testing, X-ray diffraction (XRD), microscopic observation, uniaxial compression test, and scanning electron microscope (SEM), are employed to analyze the physicomechanical properties of tuff in Mila Mountain tunnel under dry and saturated conditions. Then, the mechanism of tuff softening in water is explained. Finally, the statistical damage constitutive model of tuff is established. It was revealed that the tuff compositions were dominated by quartz and clay minerals accounting for more than 90%, and clay minerals, anhydrite, and pyrite were mainly soluble minerals. After being saturated with water, the soluble minerals in the tuff are dissolved, and the porosity and wave velocity are increased; however, the elastic modulus and peak strength are decreased, indicating that water softening was distinct. Water softening after saturation was due to the mineral compositions and microstructure characteristics of tuff in Mila Mountain tunnel; specifically, as the tuff characterized by high porosity was conductive to water absorption, the soluble minerals in the tuff were corroded and swelled by water, dissolving, loosening, and softening the tuff structure; then, its mechanical behavior was degraded. It was demonstrated by the experimental results consistent with theoretical results that the model can be employed to express the constitutive behavior of tuff in Mila Mountain tunnel under dry and saturation conditions. The findings provide insights into macroscale deterioration of tuffs and theoretical knowledge for the tunnel excavation and support of Mila Mountain tunnel.

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“…Out of the total production in India, approximately 85% is quarried from Rajasthan state generating roughly around 5-6 Million Metric Tons of MSD slurry every year. Various options, such as utilization in cement manufacturing (Aruntaş et al, 2010;Ashish et al, 2016;Khichi, 2017;Toubal Seghir et al, 2019), production of synthetic gypsum through chemical reaction (DOLEŽELOVÁ et al, 2017;Krejsová et al, 2019), utilization in road construction (Chandra et al, 2002;Rai et al, 2020) as a low cost binder, (Khan et al, 2020) or in brick manufacturing (Emir et al, 2011;Gencel et al, 2012;ur Rehman, 2014) have been explored to manage this huge inorganic waste in a productive manner. However, utilization of MDP for improving the quality of solar salt with simultaneous production of gypsum from high sulphate rich brines, such as Rajasthan lake brines has not been explored so far.…”

Section: Introductionmentioning

confidence: 99%

Management of Solid Waste Marble Powder: Improving Quality of Sodium Chloride Obtained From Sulphate Rich Lake/Subsoil Brines With Simultaneous Recovery of High Purity Gypsum and Light Basic Magnesium Carbonate

Sanghavi

Upadhyay

Kumar

2021

Preprint

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Marble industry worldwide produces large amount of non-degradable marble dust powder (MDP) waste during mining and processing stages. MDP mainly comprises of CaCO3 with small amounts of Mg, Fe or Si in various forms. In India, mainly in Rajasthan state, marble is quarried in huge amounts and MDP thus produced is collected improperly and dumped at any abandoned land or identified disposal sites leading to several environment hazards. On the other hand, the composition of sub soil/lake brines of Rajasthan is typical in nature as it does not have much Ca2+ and Mg2+ impurities but contains higher levels of SO42-. Therefore, the common salt (NaCl) produced from such brines is contaminated with Na2SO4 (8-30 wt%) depending upon SO42- concentration in the brine. Such a salt produced is neither suitable for edible purpose nor for industrial usage. Herein, we have reacted MDP with HCl, and the resulting solution (CaCl2 and MgCl2 slurry) is used in stoichiometric ratio of Ca2+ to SO42- in brines to produce high purity NaCl and gypsum (CaSO4·2H2O) via fractional crystallization. Remaining magnesium containing solution was reacted with Na2CO3 to prepare high purity light basic magnesium carbonate hydrate. Purity of crystallized NaCl, CaSO4·2H2O and MgCO3·6H2O has been ascertained through analytical and spectral methods (TGA, FTIR, P-XRD). Field emission scanning electron microscopy (FE-SEM) was used to elucidate morphology of crystals. The method reported for improving purity of NaCl along with CaSO4·2H2O and MgCO3·6H2O production from sulphate rich brines is simple and economic, and allow management of MDP generated in huge amounts, which poses problems of disposal and creates environment hazards.

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Strength enhancement of Eskisehir tuff ashlars in Turkey

Cited by 12 publications

References 12 publications

Development of sand-plastic composites as floor tiles using silica sand and recycled thermoplastics: a sustainable approach for cleaner production

Development of sand-plastic composites as floor tiles using silica sand and recycled thermoplastics: a sustainable approach for cleaner production

Investigation on Physicomechanical Properties and Constitutive Model of Tuff in Mila Mountain Tunnel under Dry and Saturated Conditions

Management of Solid Waste Marble Powder: Improving Quality of Sodium Chloride Obtained From Sulphate Rich Lake/Subsoil Brines With Simultaneous Recovery of High Purity Gypsum and Light Basic Magnesium Carbonate

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