Yazar "Uzal, Burak" için listeleme
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Characteristics of calcined natural zeolites for use in high-performance pozzolan blended cements
Uzal, Burak; Kucukyildirim, E (ELSEVIER SCI LTD, 2014)Two natural zeolites with different characteristics were calcined at various temperatures in order to improve the benefits provided by their use in blended cements as cement replacement material. Natural zeolites were ... -
Characterizing boron-enhanced one-part alkaline-activated mortars: Mechanical properties, microstructure and environmental impacts
Örklemez, Ezgi; İlkentapar, Serhan; Durak, Ugur; Gülçimen, Sedat; Uzal, Niğmet; Uzal, Burak; Karahan, Okan; Atiş, Cengiz Duran (ELSEVIER, 2024)Since alkali activators negatively effect the environmental impact assessment, it is necessary to develop the alternative activators from natural sources with low environmental impact. Therefore, in this study, the usage ... -
Compatibility of Superplasticizers with Limestone-Metakaolin Blended Cementitious System
Zaribaf, Behnaz H.; Uzal, Burak; Kurtis, Kimberley (SPRINGER, 2015)This study investigates the performance of polycarboxylate ether (PCE), polymelamine sulfonate (PMS), sodium lignosulfonate and naphthalene formaldehyde condensate (PNS) superplasticizers (SPs) with ASTM C595 Type IL cement ... -
Effect of characteristics of natural zeolites on their geopolymerization
Ozen, Sevgi; Uzal, Burak (ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS, 2021)The properties of clinoptilolite-based geopolymers are investigated with a focus on the parameters affecting the reactivity of clinoptilolite in a geopolymer binder. A complete characterization of raw materials was carried ... -
Effect of duration and type of grinding on the particle size distribution and microstructure of natural pumice with low pozzolanic reactivity
Taj, Khalilullah; İlcan, Hüseyin; Teksin, Eray; Argın, Gizem; Ardoğa, Mehmet Kemal; Uzal, Burak; Şahmaran, Mustafa (ELSEVIER, 2023)Pumice, with low pozzolanic reactivity, was ground for 1, 3, and 6 h with a laboratory ball mill in dry conditions and it was ground for 1 h in wet conditions via an industrial-scale ball mill. Based on derivative particle ... -
Effect of mineralogical composition of clinoptilolite-bearing tuffs on their performance as a natural pozzolan in cementitious systems
Ozen, Sevgi; Uzal, Burak (TECHNO-PRESSPO BOX 33, YUSEONG, DAEJEON 305-600, SOUTH KOREA, 2021)In this study, pozzolanic reactivity and strength activity of zeolitic tuffs containing similar amount of zeolitic phase (clinoptilolite) and different types and amounts of impurities were examined in order to understand ... -
Effect of Nano-SiO2 on Strength and Hydration Characteristics of Ternary Cementitious Systems
Yorulmaz, Hediye; Uzal, Burak; Karahan, Okan; Durak, Uğur; İlkentapar, Serhan; Atiş, Cengiz Duran (Institute for Ionics, 2023)This paper shows results of laboratory study on the effects of nano-SiO2 on Portland cement-fly ash systems. It is aimed to improve performance of fly ash–cement systems, particularly at early age, with the inclusion of ... -
Effects of dry particle coating with nano- and microparticles on early compressive strength of portland cement pastes
Yorulmaz, Hediye; Uzal, Burak; Özuzun, Sümeyye; İlkentapar, Serhan; Durak, Uğur; Karahan, Okan; Atiş, Cengiz Duran (Tulpar Academic Publisher, 2021)It is known that nano-and microparticles have been very popular in recent years since their advantages. However, due to the very small size of such materials, they have very high tendency to agglomeration particularly for ... -
Green building envelope designs in different climate and seismic zones: Multi-objective ANN-based genetic algorithm
Himmetoglu, Salih; Delice, Yilmaz; Aydogan, Emel Kizilkaya; Uzal, Burak (ELSEVIER, 2022)In recent years, the major component of green building designs adopted by governments in order to reduce CO2 emissions as well as energy consumption is the green building envelope. The green envelope has the most important ... -
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 ... -
Nanotanecikler İçeren Yüksek Miktarda Doğal Puzolan Katkılı Çimentolar: Özellikler, Hidratasyon ve Hamur İç Yapısı
Uzal, Burak; Korkanç, Mustafa; Karahan, Okan (TUBİTAK, 2015)Çimento sektörü dünya genelinde atmosfere salınan CO2 gazının %7’sinden tek başına sorumludur. Çimento sektörü odaklı CO2 emisyonlarının azaltılabilmesinde en etkin yol, çimentolardaki mineral katkı kullanım oranının ... -
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 ... -
Practical charts to identify the predominant clay mineral based on oxide composition of clayey soils
Sivrikaya, Osman; Uzal, Burak; Ozturk, Yunus Emre (ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS, 2017)This study proposes some useful practical charts representing the relationships between oxide composition and the type of predominant clay mineral present in clay soils. In order to produce the charts, the data set are ... -
Properties of concrete with high-volume pozzolans
Uzal, Burak (ELSEVIER, 2013)This chapter focuses on the materials and properties of high-volume natural pozzolan (HVNP) concrete. The characteristics of natural pozzolans used in high-volume pozzolan mixtures are discussed, together with the fresh ... -
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 ... -
Role of inclusion size distribution of titanium dioxide on the nitrogen oxides reduction capability and microstructural characteristics of cementitious systems
Bahsi, Emrah; Sahin, Oguzhan; Ilcan, Huseyin; Gunal, Muhammed Faruk; Yildirim, Gurkan; Sahmaran, Mustafa; Uzal, Burak (ELSEVIER SCI LTD, 2022)This paper explores the effect of the inclusion size of titanium dioxide (TiO2) particles on a variety of performance properties of cementitious systems via experimental studies. In addition to comprehensive microstructu ... -
Very high early strength calcium aluminate based binary and ternary cementitious systems: properties, hydration and microstructure
Saydan, Murat; Keskin, Ülkü Sultan; Uzal, Burak (Taylor and Francis Ltd., 2023)Calcium aluminate cement (CAC) is a cement type that has superior prop-erties such as rapid strength gain, high resistance to high temperatures and harmful chemicals. However, the result of the using of CACs in ...
