The effect of boron waste in phase and microstructural development of a terracotta body during firing

Kurama, Semra; Kara, Alpagut; Kurama, Haldun

doi:10.1016/j.jeurceramsoc.2005.07.039

Cited by 48 publications

(44 citation statements)

References 11 publications

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“…The problems related to waste production are becoming more and more important in relation to the improvement of economical conditions, the progress of industrial development and the population and urban increase. For that reason, there is an effort in extending the application of waste mainly by innovative technologies for the manufacture of new products [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Recycling of Coal Ash in Production of Low Density Masonry Unit

2017

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Coal ash is a residue that is created when coal is burned by power plants to produce electricity. Coal ash is one of the largest types of industrial waste and causes environmental pollution. On the other hand, coal ash is potentially a valuable source of minerals, including SiO2, Al2O3, CaO, MgO, Fe2O3, Na2O and K2O. This study aims to recycle the coal ash in production of low density masonry unit. Coal ash was characterized by chemical and X-ray diffraction analyses. The batches containing different ratios of coal ash and a brick making clay were prepared and shaped by cold pressing. The pressed samples were fired at 1050 and 1100• C. The physical properties such as water absorption, apparent porosity, linear shrinkage, and bulk density were determined. Microstructural observations were performed by using scanning electron microscopy. Based on the technological characteristics; it was observed that low density masonry units can be produced by using coal ash. This study supports the responsible recycling of coal ash by distinguishing beneficial use from disposal.

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Section: Introductionmentioning

confidence: 99%

Recycling of Coal Ash in Production of Low Density Masonry Unit

2017

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“…In some studies considering the effect of changes in firing temperature on microstructure and physical properties of clay, XRF has been used for bulk chemical analyses (Cultrone, Rodriguez-Navarro, Sebastian, Cazalla, & De La Torre, 2001;Eramo, Laviano, Muntoni, & Volpe, 2004;Kurama, Kara, & Kurama, 2006;Johari, Said, Hisham, Bakar & Ahmad, 2010).…”

Section: Introductionmentioning

confidence: 99%

Investigation by pXRF of Caltagirone Pottery Samples Produced in Laboratory

Gueli¹,

Delfino²,

Nicastro³

et al. 2017

Open Archaeology

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Abstract:In the study of archaeological ceramics, it is important to have compositional data to identify their origin and source. The fabric also provides useful information on the production technology, especially with regard to the firing steps. The work presented here is connected to this field and focuses on the main parameters related to the terracotta artefacts preparation. Thus, one can consider the effects in terracotta characteristics of different raw materials and firing parameters, in particular for pottery of Caltagirone, which is one of most important centres of pottery production in Italy, active since the Neolithic. To this end, terracotta samples have been reproduced in a laboratory setting according to the ancient procedure of Caltagirone manufacture, starting from clay and degreaser extraction in local historical sites. The analysis was conducted using a portable X-Ray Fluorescence (pXRF) spectrometer for elemental characterization of sand degreaser and of clays during each step of the realization process and in different firing conditions. SEM-ED techniques were also employed to verify the method and results for some of the samples after firing process. Framing the technological context of manufacture production, known in the specific case, it is also possible to identify potential outcomes and limits in the study of potsherds using pXRF technology, in applying the methodology to historic artefacts.

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“…They reported that SBW and DBW boron-containing wastes combined with a clay mixture and quartz sand can be used for the manufacturing of LWA. Kurama et al [2] used a dewatering sieve waste (TSW) of Etibor Kırka Borax company (Turkey) in order to develop an experimental terracotta floor tile body composition in combination with a feldspathic waste provided from a local sanitaryware plant and a ball clay. The results indicated a prospect for using the TSW as a raw material in mixtures with both clay and sanitaryware waste for the production of a terracotta floor tile body.…”

Section: Introductionmentioning

confidence: 99%

Wear and friction of composites of an epoxy with boron containing wastes

2015

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SbstractPolymer surface coatings provide superior adhesion to substrates, some flexibility and corrosion resistance. On the other hand, 400,000 ton of boron wastes are generated each year. We have developed polymer composites based on epoxy resins containing up to 50 wt. % of boron wastes and determined their pin-on-disk dynamic friction, wear, Shore D hardness and surface roughness. The hardness and wear resistance increase with increasing boron waste concentration. An equation, with parameters dependent on the load, relating wear rate to hardness is provided. Dynamic friction increases with increasing surface roughness, as represented by the equation. Further, dynamic friction is an increasing function of the wear rate. Micrographs of pure epoxy without fillers shows traces after pin-on-disk testing, with tears, breaks and cracks. For the composites, we observe simpler and relatively homogeneous surfaces.

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The effect of boron waste in phase and microstructural development of a terracotta body during firing

Cited by 48 publications

References 11 publications

Recycling of Coal Ash in Production of Low Density Masonry Unit

Recycling of Coal Ash in Production of Low Density Masonry Unit

Investigation by pXRF of Caltagirone Pottery Samples Produced in Laboratory

Wear and friction of composites of an epoxy with boron containing wastes

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