Yazar "Arıöz, Ömer" için listeleme
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Assessing concrete strength by means of small diameter cores
Tuncan, Mustafa; Arıöz, Ömer; Ramyar, Kambiz; Karasu, Bekir (Elsevier Sci LTD, 2008)Estimation of concrete strength may be gained from compression tests conducted on cores having a diameter considerably smaller than the recommended one of 100 mm. This paper examines the results of tests applied on the 69 ... -
Belirsizlik altında karar alma süreçlerinin analizi : Türkiye çimento sektöründe bir uygulama örneği
Arıöz, Ömer (Anadolu Üniversitesi, 2012)Belirsizlik karar verme sürecinde bir seçeneğin birçok farklı sonucunun gerçekleşebileceği ancak bu farklı sonuçların gerçekleşme olasılıklarının bilinmediği bir durum olarak ifade edilmektedir. Belirsizliğin sürpriz ... -
Beton dayanımının standart, tahribatlı, yarı-tahribatlı ve tahribatsız yöntemlerle belirlenmesi
Arıöz, Ömer (Anadolu Üniversitesi, 2004)Beton üzerinde uygulanan en önemli kalite testi betonun kalitesi ve diğer önemli özellikleri hakkında önemli bilgiler veren basınç dayanımı testidir. Bu testlerin sonuçlarının tasarımda kullanılan dayanım değeri ile ... -
A comparative study on the interpretation of concrete core strength results
Arıöz, Ömer; Tuncan, Mustafa; Ramyar, K; Tuncan, Ahmet (Thomas Telford Publishing, 2006)Cores measuring 94 mm and 144 mm in diameter and having length-to-diameter ratios of 2-0, 1.0 and 0.75 were removed from beam specimens produced from different concrete mixtures. Standard cubes and cylinders were also ... -
Concrete with recycled aggregate
Arıöz, Ömer; Özsoy, A; Yılmaz, G (Trans Tech Publications LTD, 2004)Reuse of hardened concrete rubbles caused by the demolition of concrete structures has recently become possible in construction industry. The utilisation of these materials M concrete production may provide two main benefits; ... -
Determination of Concrete Strength By Using Small Diameter Cores and Microcores
Kılınç, Kadir; Çelik, Ahmet Ozan; Tuncan, Mustafa; Tuncan, Ahmet; Arıöz, Ömer (Novpress Sro, 2011)Strength of concrete is an important property for the quality of concrete. Compression testing of cores drilled from hardened concrete is a widely accepted method of strength determination. Estimation of concrete strength ... -
Effect of length-to-diameter ratio of core sample on concrete core strength - Another look
Arıöz, Ömer; Ramyar, Kambiz; Tuncan, Mustafa; Tuncan, Ahmet (Amer Soc Testing Materials, 2008)Cores with diameters of 144,94,69, and 46 mm and length-to-diameter(1/d) ratios of 0.75,1,1.25,1.5,1.75, and 2, were removed from beam specimens produced from eight different concrete mixtures. Compressive strength tests ... -
Effect of pore forming agent on the properties of lightweight expanded clay aggregate
Lightweight expanded clay aggregates (LECA) were produced by using clay, coal, perlite, and bottom ash. Aggregates were shaped by means of pelletizing. After preparation, the rounded aggregates were treated for various ... -
Effects of elevated temperatures on properties of concrete
Arıöz, Ömer (Elsevier Sci LTD, 2007)Concrete material in structures is likely exposed to high temperatures during fire. The relative properties of concrete after such an exposure are of great importance in terms of the serviceability of buildings. This paper ... -
An experimental investigation on fly ash based geopolymer bricks
Geopolymer bricks were produced by using F type fly ash, C type fly ash, sodium hydroxide solution, sodium silicate solution by means of pressure forming process. Then, the geobricks were heat treated at the temperature ... -
An experimental study on the evaluation of concrete test results
The compressive strength test applied to standard samples is one of the most important tests indicating the quality of concrete in structures. The results of the standard tests are compared with the values used in design ... -
An experimental study on the mechanical and microstructural properties of geopolymers
Arıöz, E.; Arıöz, Ömer; Koçkar, Ömer Mete (Elsevier Science BV, 2012)Geopolymer is a new class of inorganic polymer synthesized by activation of an aluminosilicate source with an alkaline hydroxide or silicate solution. In recent years, geopolymeric materials have attracted much more attention ... -
Hazır beton üretiminde basınç dayanımı standart sapmaları etken parametrelerinin istatistiksel analizi üzerine endüstriyel bir çalışma
Kale, Burak (Anadolu Üniversitesi, 2012)Bu çalışmanın amacı, hazır beton sektöründe kullanılan hammaddelerin (çimento, agrega, su, mineral ve kimyasal katkı) beton dizaynında optimize edilmesi ve beton basınç dayanımı standart sapmaları etken parametrelerinin ... -
Leaching of F-type fly ash based geopolymers
Arıöz, E.; Arıöz, Ömer; Koçkar, Ömer Mete (Elsevier Science BV, 2012)Geopolymers are the synthetic analogues of natural zeolitic materials. Geopolymeric materials possess excellent mechanical properties, including fire and acid resistance. These properties make geopolymers an alternative ... -
A preliminary research on the properties of lightweight expanded clay aggregate
In the present study, lightweight expanded clay aggregates were produced from clay, waste brick powders, albite floatation waste, and coal at various temperatures ranged from 900 °C to 1250 °C. After the production, the ... -
Properties of fly ash-FGD gypsum-lime based products
Arıöz, Ömer; Tokyay, M.; Ariöz, E.; Tuncan, Mustafa; Karasu, Bekir (2006)Bricks were produced by using six different combinations of fly ash, flue gas desulphurization gypsum and lime with the addition of 10 wt% water. The products were shaped by means of pressure forming process. The bricks ... -
Retained properties of concrete exposed to high temperatures: Size effect
Arıöz, Ömer (John Wiley & Sons LTD, 2009)Concrete as a construction material is likely exposed to high temperatures during fire. The retained properties of concrete after such exposures are still of great importance in terms of the serviceability of structures. ... -
Some factors influencing effect of core diameter on measured concrete compressive strength
Arıöz, Ömer; Ramyar, Kambiz; Tuncan, Mustafa; Tuncan, Ahmet; Cil, İsmail (Amer Concrete Inst, 2007)Various concrete mixtures were produced using crushed limestone and river gravels with four different maximum sizes of 10, 15, 22, and 30 mm (0.39, 0.59, 0.87, and 1.18 in.). The 28-day cube strength of concrete mixtures ... -
Statistical distributions of in situ microcore concrete strength
Kılınç, Kadir; Çelik, Ahmet Ozan; Tuncan, Mustafa; Tuncan, Ahmet; Arslan, Gökhan; Arıöz, Ömer (Elsevier Sci LTD, 2012)Quality control processes require accurate knowledge of in situ compressive strength of concrete. The most widely accepted method of determining the compressive strength of concrete in existing structures is to test core ... -
Türkiye’de çimento sektöründeki belirsizlikler ve Türk çimento sektörünün swot analizi
Arıöz, Ömer; Yıldırım, Kemal (2012)Belirsizlik karar verme sürecinde bir seçeneğin birçok farklı sonucunun gerçekleşebileceği ancak bu farklı sonuçların gerçekleşme olasılıklarının bilinmediği durumlar olarak ifade edilmektedir. Karar vericinin gelecek ...
