Characterization of epoxy based coating reinforced with nanoparticles of silica sand

Geopolymer is new binder manufactured from an aluminosilicate source materials synthesized of geopolymer by polycondensation reaction of geopolymeric precursor and alkali polysilicate. Material contains mostly Silicon (Si) and Aluminium (Al) in amorphous form is a possible to be geopolymer source material. Several minerals and industrial by-product materials have been investigated geopolymer materials essentially as a replacement for Ordinary Portland Cement (OPC) and for advanced high-tech composites, ceramic applications, and also as an inorganic polymer coating. This paper reports microstructure properties of various geopolymer properties which are kaolin, white clay and silica sand, from Saudi Arabia by conducting several tests. The characterization and particle morphology of the various geopolymer sources materials was determined using scanning electron microscopy (SEM). X-Ray Fluorescence (XRF) is conducted according to perform elemental analysis and chemical analysis while X-ray Diffraction Analysis (XRD) investigates crystalline material structure, including atomic arrangement, crystalline size, and imperfections.

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Local Silica Sand as a Substitute for Standard Ottawa Sand in Testing of Cement Mortar

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1000.220 ◽

2020 ◽

Vol 1000 ◽

pp. 220-226

Author(s):

Wieke Pratiwi ◽

Gaos Abdul Karim ◽

Titi Rachmawati

Keyword(s):

Quality Control ◽

Compressive Strength ◽

Cement Mortar ◽

Silica Content ◽

Sem Analysis ◽

Silica Sand ◽

Ottawa Sand ◽

South Sulawesi ◽

Good Potential

Compressive strength of cement mortar is an important parameter in the quality control of Portland cement. The limitation of Ottawa sand imports has prompted a study on the potential and utilization of local silica sand available in several regions in Indonesia. The purpose of this study was to investigate the potential and possibility of utilizing local silica sand from several regions in Indonesia including Bangka, Belitung, Sidrap (South Sulawesi Province) as a substitute for standard Ottawa sand in cement mortar testing. Evaluation of local silica sands consisted of SEM analysis, characterization of silica sands and testing of cement mortar compressive strength. Silica sands from Bangka, Belitung and Tuban had silica content of more than 90%, while that from Sidrap was more or less 90%. Based on the SEM analysis, characteristic of silica sands, and compressive strength of cement mortar, local silica sand from Sidrap (South Sulawesi Province) has a good potential to be used as a substitute for standard Ottawa sand in testing of cement mortar.

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The development and characterization of HDPE-silica sand nanoparticles composites

2011 IEEE Colloquium on Humanities, Science and Engineering ◽

10.1109/chuser.2011.6163824 ◽

2011 ◽

Cited By ~ 1

Author(s):

Tahir Ahmed ◽

Othman Mamat

Keyword(s):

Silica Sand

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Pore System and Hydric Properties of Two Different Lime Plasters with Finely Crushed Brick

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.675-676.597 ◽

2016 ◽

Vol 675-676 ◽

pp. 597-600 ◽

Cited By ~ 3

Author(s):

Monika Čáchová ◽

Eva Vejmelková ◽

Kirill Polozhiy ◽

Robert Černý

Keyword(s):

Reference Material ◽

Liquid Water ◽

Mercury Porosimetry ◽

Silica Sand ◽

Pore System ◽

Vacuum Saturation ◽

Lime Plaster ◽

Crushed Brick ◽

Helium Pycnometry

Two different lime plasters with finely crushed brick are studied in this article. In the first plaster the pozzolan mixture was used as silica sand while in the second it was dosed as replacement of the lime substitute and silica sand (the substitution levels being 20% and 50%). Classic lime plaster was used as a reference material. Studied parameters were basic physical properties (measured by water vacuum saturation and by helium pycnometry), characterization of pore system (by mercury porosimetry) and transport of liquid water.

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Quality Characterization of Iron Dust Exhaust Thermal as Alternative Ceramic Coating Raw Materials in a Brazilian Company

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1077.135 ◽

2014 ◽

Vol 1077 ◽

pp. 135-138

Author(s):

Luiz Oliveira Veriano dalla Valentina ◽

Marilena Valadares Folgueras ◽

Wanessa Rejane Knop ◽

Maria Cristina Pacheco do Nascimento ◽

Glaucia Aparecida Prates

Keyword(s):

Ceramic Coating ◽

Raw Materials ◽

Ceramic Materials ◽

Raw Material ◽

Silica Sand ◽

Commercial Application ◽

X Ray Diffraction ◽

X Ray ◽

Materials Used

As the raw materials used in the ceramic materials manufacturing are natural, it is important to use them as a alternative materials, thus decreasing the elements demand taken from nature. This paper aims the characterization of foundry solid powder exhaust from a brazilian company located in Joinville - SC as an alternative raw material for ceramic coating by X-ray diffraction (XRD), thermal analysis (DSC) and thermogravimetric (TG). The dust depletion is caused in the manufacturing mold sand process, when the bentonita (clay), silica sand and coal during the metal parts production are mixed in green sand production. The raw materials were characterized through X-ray diffraction (XRD), thermal (DSC) and thermogravimetric analisys (TG). The atomized powder thermogravimetric analysis curve shows three intervals associated with the mass loss and it is typical of clay commercial application.

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Reuse of Waste Foundry Sand from its Interaction with the Bonding Agent Sodium Silicate

Materials Science Forum ◽

10.4028/www.scientific.net/msf.805.591 ◽

2014 ◽

Vol 805 ◽

pp. 591-597

Author(s):

J.C. Souza ◽

Adriana Scoton Antonio Chinelatto ◽

Adilson Luiz Chinelatto ◽

I.L. Oliveira ◽

R.E.P. Salem

Keyword(s):

Sodium Silicate ◽

Casting Process ◽

Silica Sand ◽

X Ray Diffraction ◽

Green Sand ◽

Binding Properties ◽

Foundry Sand ◽

Activated Bentonite ◽

Waste Foundry Sand

Green sand molds are used in metal casting process. However, after heating, activated bentonite present in green sand loses the binding properties, and part of the foundry sand has to be discarded from the process. The ABNT NBR 15.984/2011 standard establishes the management of waste foundry sand (WFS) avoiding disposal in landfills. The objective of this work was to investigate the possibility of reusing the WFS from the study of its interaction with sodium silicate binder. Studies with silica sand and new green sand were performed in order to compare the results obtained with the WFS. The characterization of the samples was performed by measuring compressive strength, by X-ray diffraction, by optical microscopy and by scanning electron microscopy. The results showed that there is an interaction of the sodium silicate with the WFS as well as with the silica sand and green sand.

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Preparation and Characterization of Soft Glass Using Sarawak Silica Sand as Starting Material for Craftware

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.895.363 ◽

2014 ◽

Vol 895 ◽

pp. 363-374

Author(s):

Marlinda Daud ◽

Mahadi Abu Hassan

Keyword(s):

Melting Temperature ◽

Linear Thermal Expansion ◽

Soda Lime ◽

Silica Sand ◽

Wet Chemical Method ◽

Soft Glass ◽

Melting Temperatures ◽

Wet Chemical ◽

Temperature Melting

Soft glass is one of the soda-lime-silicate (SLS) glass which is well-known in the craftware industry by lamp working technique . It is produced by melting the glass batch of local silica sand and certain chemicals. The SiO2 content of the silica sand is determined by wet chemical method and XRF analysis. The sand which meets the standard will be ground to the size of 150 μm and below, dry mixed with chemicals in proportions according to the formulation. Three series of soft glass containing different amount of silica sand (70-75%) and two different melting temperature were produced. The melting temperatures varied from 1450°C to 1500°C. The thermal behavior of the glass produced was investigated by differential thermal analysis. The thermal properties of the glass such as glass transition temperature, melting temperature and linear thermal expansion coefficient were studied. From the results, it was found that the melting temperature is around 600°C 750°C and this is consistent with the value theoretically. Other characterizations such as density, refractive index and Vickers micro hardness were also been carried out. Abstrak Kaca lembut termasuk di dalam kumpulan kaca soda-kapur-silika (SLS) yang terkenal dalam industri penghasilan kaca kraf yang menggunakan teknik lampworking. Ia dihasilkan dengan meleburkan kelompok kaca pasir silika dan bahan-bahan kimia tertentu. Kandungan SiO2 bagi pasir silika tempatan ini ditentukan oleh kaedah kimia secara basah dan analisis XRF. Pasir yang menepati piawai akan dikisar sehingga ke saiz di bawah 150 μm dan dicampur dengan bahan-bahan kimia berdasarkan formulasi yang telah ditetapkan. Tiga siri kaca lembut telah dihasilkan iaitu yang mengandungi jumlah pasir silika yang berbeza (70-75%) pada dua suhu lebur yang berbeza iaitu 1450°C ke 1500°C. Kelakuan terma kaca yang dihasilkan telah diselidiki oleh analisis pembezaan terma (DTA) . Daripada ujian ini, sifat-sifat terma kaca seperti suhu peralihan kaca, suhu pelembutan dan pekali pengembangan terma linear telah dikaji. Daripada hasil kajian, didapati bahawa suhu lebur bagi kaca ini ialah pada sekitar 600°C - 750°C dan ini adalah selari dengan nilai teori. Pencirian lain seperti ketumpatan, indeks biasan dan mikrokekerasan Vickers juga telah dilakukan.

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