Yazar "Atis, Cengiz Duran" için listeleme
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Alkali activation of mortars containing different replacement levels of ground granulated blast furnace slag
Bilim, Cahit; Atis, Cengiz Duran (ELSEVIER SCI LTD, 2012)The aim of the present study is to investigate some properties of alkali-activated mortars containing slag at different replacement levels. Ground granulated blast furnace slag was used at 0%, 20%, 40%, 60%, 80% and 100% ... -
Dual effectiveness of freezing-thawing and sulfate attack on high-volume slag-incorporated ECC
Ozbay, Erdogan; Karahan, Okan; Lachemi, Mohamed; Hossain, Khandaker M. A.; Atis, Cengiz Duran (ELSEVIER SCI LTD, 2013)This study investigated the dual effect of freeze–thaw cycles with sodium sulfate solution on the performance of non-air-entrained Engineering Cementitious Composites (ECCs) with high volumes of slag. ECC specimens ... -
Effect of Granulated Blast Furnace Slag and fly ash addition on the strength properties of lightweight mortars containing waste PET aggregates
Akcaozoglu, Semiha; Atis, Cengiz Duran (ELSEVIER SCI LTD, 2011)In this work, the effect of Granulated Blast Furnace Slag (GBFS) and fly ash (FA) addition on the strength properties of lightweight mortars containing waste Poly-ethylene Terephthalate (PET) bottle aggregates was ... -
The Effects of Different Types of Fly Ash on the Compressive Strength Properties of Briquettes
Sola, Ozlem Celik; Yayla, Murat; Sayin, Baris; Atis, Cengiz Duran (HINDAWI LTD, ADAM HOUSE, 3RD FLR, 1 FITZROY SQ, LONDON, W1T 5HF, ENGLAND, 2011)The aim of this study is to evaluate the effect of the different types of fly ash on the compressive strength properties of sintered briquettes. Thermal gravimetric (TG) analysis was carried out. The chemical composition ... -
The Effects of Pyrite Ash on the Compressive Strength Properties of Briquettes
Sola, Ozlem Celik; Atis, Cengiz Duran (KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE, 2012)The aim of this study is to investigate the utilization of Pyrite Ash (PA) in the production of briquettes as a replacement of clay or soil. To achieve this, first, the characterization of the materials used (clayey soil ... -
Fresh, Mechanical, Transport, and Durability Properties of Self-Consolidating Rubberized Concrete
Karahan, Okan; Ozbay, Erdogan; Hossain, Khandaker M. A; Lachemi, Mohamed; Atis, Cengiz Duran (AMER CONCRETE INST, 2012)This paper presents the fresh, mechanical, transport, and durability performances of self-consolidating rubberized concretes (SCRCs). Fresh concrete properties were determined with slump flow, V-funnel, J-ring, and L-box ... -
Influence of admixtures on the properties of alkali-activated slag mortars subjected to different curing conditions
Bilim, Cahit; Karahan, Okan; Atis, Cengiz Duran; Ilkentapar, Serhan (ELSEVIER SCI LTD, 2013)This paper presents the influence of shrinkage-reducing (SHR) and superplasticizing and set-retarding admixtures (SSRe) on the properties of slag pastes and mortars activated by liquid sodium silicate with different ... -
Influence of nano SiO2 and nano CaCO3 particles on strength, workability, and microstructural properties of fly ash-based geopolymer
Durak, Ugur; Karahan, Okan; Uzal, Burak; Ilkentapar, Serhan; Atis, Cengiz Duran (ERNST & SOHN, ROTHERSTRASSE 21, BERLIN, DEUTSCHLAND 10245, GERMANY, 2020)The influence of nano SiO2(NS) and CaCO3(NC) particles on the properties of class F fly ash based geopolymer mortar activated with different sodium ion concentrations have been investigated. Mortar mixture proportions were ... -
The infuence of cement kiln dust on strength and durability properties of cement‑based systems
Hakkomaz, Hadiye; Yorulmaz, Hediye; Durak, Ugur; Ilkentapar, Serhan; Karahan, Okan; Atis, Cengiz Duran (SPRINGER HEIDELBERG, 2022)There are very few studies in the literature on the usage of CKD in cementitious systems. This article presents the laboratory study results on the infuence of cement kiln dust (CKD) on the properties of mortar made with ... -
Investigation of Properties of Engineered Cementitious Composites Incorporating High Volumes of Fly Ash and Metakaolin
Ozbay, Erdogan; Karahan, Okan; Lachemi, Mohamed; Hossain, K. M. A.; Atis, Cengiz Duran (AMER CONCRETE INST, 2012)This study was carried out to develop engineered cementitious composites (ECCs) incorporating binary blends of high volumes of fly ash (FA) and metakaolin (MK) for the purpose of achieving low drying shrinkage and high ... -
A new parameter influencing the reaction kinetics and properties of fly ash based geopolymers: A pre-rest period before heat curing
Durak, Ugur; Ilkentapar, Serhan; Karahan, Okan; Atis, Cengiz Duran (ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS, 2021)In this study, the influence of a pre-rest period before heat curing (as a new parameter), on the physical properties, flexural and compressive strength, and microstructure of geopolymer mortars and pastes produced with ... -
Reaction kinetics and properties of pumice-based geopolymer systems cured at room temperature
Küçükyıldırım, Enver; Yorulmaz, Hediye; Durak, Uğur; İlkentapar, Serhan; Uzal, Burak; Karahan, Okan; Atis, Cengiz Duran (ELSEVIER, 2023)This research investigated the kinetics of pumice-based geopolymer systems and their physical and mechanical properties. The effect of the Na2SiO3/NaOH ratio of geopolymer systems on the rate of heat evolution and total heat ... -
Thermal conductivity, compressive strength and ultrasonic wave velocity of cementitious composite containing waste PET lightweight aggregate (WPLA)
Akcaozoglu, Semiha; Akcaozoglu, Kubilay; Atis, Cengiz Duran (ELSEVIER SCI LTD, 2013)In this study, the influence of waste PET as lightweight aggregate (WPLA) replacement with conventional aggregate, on thermal conductivity, unit weight and compressive strength properties of concrete composite was ...
