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Browsing Kimya Mühendisliği / Chemical Engineering by Author

Browsing Kimya Mühendisliği / Chemical Engineering by Author "Sevinç, Vahdettin"

Now showing items 1-12 of 12

A numerical study of geometric and material instability in uniaxial drawn polymers

Mimaroğlu, Abdullah; Özel, Ahmet; Sevinç, Vahdettin (ELSEVIER SCI LTD, 1996)

In this study, the general purpose Finite Element Code, ABAQUS, with a non-linear solution has been employed to study the neck profile in drawn polymers. Attempts are made to obtain the relationship between the neck profile, ...
A reply to the discussion by A. Demirbas of the paper "Influence of natural pozzolan, colemanite ore waste, bottom ash, and fly ash on the properties of Portland cement" - Discussion

Sevinç, Vahdettin (PERGAMON-ELSEVIER SCIENCE LTD, 2004)
An investigation on the use of tincal ore waste, fly ash, and coal bottom ash as Portland cement replacement materials

Sevinç, Vahdettin (PERGAMON-ELSEVIER SCIENCE LTD, 2002)

The possibility of using tineal ore waste (TW), coal bottom ash (BA), and fly ash (FA) as partial replacement in concrete was examined through a number of tests. The properties examined include setting time, compressive ...
Analitik Kimya

Sevinç, Vahdettin; Yalçın, Nevin (Sakarya Üniversitesi, 1993)
Effects of colemanite waste, cool bottom ash, and fly ash on the properties of cement

Sevinç, Vahdettin (PERGAMON-ELSEVIER SCIENCE LTD, 2001)

In this study, the physical and chemical properties of colemanite ore waste from concentrator, coal bottom ash, fly ash, cement+ash mixtures, cement+colemanite ore waste, and their effects on the mechanical properties of ...
Effects of supplementary cementing materials on the properties of cement and concrete

Sevinç, Vahdettin (PERGAMON-ELSEVIER SCIENCE LTD, 2002)

The effect of bentonite, colemanite ore waste (CW), coal fly ash (FA) and coal bottom ash (BA) on the properties of cement and concrete has been investigated through a number of tests. The properties examined include setting ...
Evaporation induced self-assembly of zeolite - A micropatterns due to the stick-slip dynamics of contact line

Olgun, Uğursoy; Sevinç, Vahdettin (ELSEVIER SCIENCE SA, 2008)

In this study, a new surfactant-solvent system was described for the preparation of periodic stripe patterns of zeolite A on solid substrates. The evaporation induced self-assembly of zeolite A particles was due to the ...
Heavy metal contents of Lake Sapanca

Sevinç, Vahdettin; Yalçın, Nevin (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY, 2001)

The heavy metal pollution of Lake Sapanca located in the Marmara region (Turkey), was investigated over time. The lake is the drinking water source of the city of Adapazari and its environs. The D-80 (TEM) motorway passes ...
Influence of natural pozzolan, colemanite ore waste, bottom ash, and fly ash on the properties of Portland cement

Sevinç, Vahdettin (PERGAMON-ELSEVIER SCIENCE LTD, 2003)

This study has examined the effect of natural pozzolan (NP), colemanite ore waste (CW), coal fly ash (FA), and coal bottom ash (BA) on the properties of cement and concrete. The parameters studied included compressive ...
Studies of the surface area and porosity of activated carbons prepared from rice husks

Sevinç, Vahdettin; Yalçın, Nevin (PERGAMON-ELSEVIER SCIENCE LTD, 2000)

Activated carbons' were prepared by ZnCl2/CO2 and other salt solutions/CO2 activation of the rice husk. The products were characterized in terms of density, elemental analysis, specific surface area, and porosity. The ...
Studies on silica obtained from rice husk

Sevinç, Vahdettin; Yalçın, Nevin (ELSEVIER SCI LTD, 2001)

The potential and limits of rice husk to prepare relatively pure activated silica were investigated. For the activated silica, rice husk samples were submitted to a chemical pre-and post-treatment using HCl, H2SO4 and NaOH ...
Utilization of bauxite waste in ceramic glazes

Sevinç, Vahdettin; Yalçın, Nevin (ELSEVIER SCI LTD, 2000)

Red mud (bauxite waste) emerge as by-product from the caustic leaching of bauxites to produce alumina and it causes serious problems such as storing and environmental pollution. In this study, red mud, which is the industrial ...