Search Results - "POLAT, RIZA"

Effects of the different atmospheric steam curing processes on the properties of self-compacting-concrete containing microsilica by AYDIN, ABDULKADIR CÜNEYT, ÖZ, ALI, POLAT, RIZA, MINDIVAN, HARUN

“…In this paper an attempt has been made to study the use of microsilica on the properties of self-compacting-concrete (SCC) such as compressive strength,…”
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Effect of heat treatment temperature on ground pumice activation in geopolymer composites by Yadollahi Mehrzad Mohabbi, Demirboğa Ramazan, Polat Rıza

“…In emerging countries, the driving elements for sustainable development are greenhouse and global warming concerns and the need for the development of low-CO2…”
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Effects of nano and micro size of CaO and MgO, nano-clay and expanded perlite aggregate on the autogenous shrinkage of mortar by Polat, Rıza, Demirboğa, Ramazan, Khushefati, Waleed H.

“…•Reduction in AS due to nano-MgO was higher than that of MgO.•The maximum reduction in AS were observed for both CaO75 and nano-MgO75.•Nano-CaO was ineffective…”
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The influence of calcium nitrate as antifreeze admixture on the compressive strength of concrete exposed to low temperatures by Karagöl, Fatma, Demirboğa, Ramazan, Kaygusuz, Mehmet Akif, Yadollahi, Mehrzad Mohabbi, Polat, Rıza

“…Based on ACI 306R-10, the minimum temperature necessary for maintaining concrete hydration and strength gaining is 5°C. If the weather becomes lower than 5°C,…”
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The effect of antifreeze additives on fresh concrete subjected to freezing and thawing cycles by Polat, Rıza

“…This study focused on the effect of antifreeze additives on the microstructural changes and physical and mechanical properties of fresh concrete subjected to…”
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The influence of nano-CaO and nano-Al2O3 and curing conditions on perlite based geopolymer concrete produced by the one-part mixing method by Dişçi, Elif, Polat, Rıza

“…•Perlite-based geopolymer can be produced by one-part mixture method.•Nano-CaO affects the strength of perlite-based geopolymer concrete negatively.•Nano-Al2O3…”
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Sustainable concrete production: Mechanical and durability behaviour of slag-based geopolymer containing recycled geopolymer aggregate by Eryılmaz, Kadriye, Polat, Rıza

“…Geopolymer binders, synthesized by activating aluminous and silicate-rich materials with alkalis, are attracting great interest as an environmentally friendly…”
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Safety factor determining for space trusses by non-linear analysis and artificial neural network method by Yadollahi Mehrzad Mohabbi, Karagöl Fatma, Kaygusuz Mehmet Akif, Polat Rıza, Demirboga Ramazan

“…Determining a feasible safety factor for space trusses is an important phase in structural analysis that could have economic benefits. We know there are many…”
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The effect of nano-MgO on the setting time, autogenous shrinkage, microstructure and mechanical properties of high performance cement paste and mortar by Polat, Rıza, Demirboğa, Ramazan, Karagöl, Fatma

“…•The nano-MgO improves the properties of the cementitious materials over time.•The nano-MgO increases the hydration heat and compressive strength of…”
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Influence of singular and binary nanomaterials on the physical, mechanical and durability properties of mortars subjected to elevated temperatures and freeze–thaw cycles by Polat, Rıza, Qarluq, Abdul Wakil, Karagöl, Fatma

“…•The highest compressive strength was obtained with 3% halloysite nano-clay.•Nano-CaO and halloysite nano-clay (2.5%+2.5%) had synergic effect.•The use of…”
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The effect of vehicle waste tires on the mechanical, hardness and stress–strain properties of polyester-based polymer concretes by Halil Akın, Muhammed, Polat, Rıza

“…•Schmidt rebound hammer number and the strength are related with similarity of 96.07%.•The use of 0–4 mm sieve diameter tire gives higher strength than…”
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Synergic effect of fly ash and calcium aluminate cement on the properties of pumice-based geopolymer mortar by Karaaslan, Cemal, Yener, Engin, Bağatur, Tamer, Polat, Rıza, Gül, Rüstem, Hakkı Alma, Mehmet

“…•FA and CAC increase the workability of pumice-based geopolymers.•CAC and FA significantly increase the early age strength of pumice-based geopolymers.•CAC…”
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Improving the durability of pumice-fly ash based geopolymer concrete with calcium aluminate cement by Karaaslan, Cemal, Yener, Engin, Bağatur, Tamer, Polat, Rıza

“…This study aims to improve the durability of pumice (70 wt%) and fly ash (30 wt%) based geopolymer concretes (PGCs) by replacing pumice with calcium aluminate…”
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The effects of urea on strength gaining of fresh concrete under the cold weather conditions by Demirboğa, Ramazan, Karagöl, Fatma, Polat, Rıza, Kaygusuz, Mehmet Akif

“…•Effects of urea on the compressive strength of concrete exposed to cold weather investigated.•Workability of concrete was improved.•Urea provides protection…”
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Mechanical and physical behavior of cement paste and mortar incorporating nano‐CaO by Polat, Rıza, Demirboğa, Ramazan, Karagöl, Fatma

“…The aim of this work is to experimentally investigate the effect of properties of nano‐CaO in cement‐based materials. Mortars and paste samples were produced…”
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Effect of stone color, dosage and alkali type on Ahlat Stone (volcanic origin) based geopolymer concretes by Toprak, Serdar Murat Uğur, Polat, Rıza, Levet, Aytaç, Toprak, Şeyda Nur

“…In this study, the usability of volcanic based Ahlat Stone for the production of geopolymer concrete was investigated using two different physical colors…”
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The influence of lightweight aggregate, freezing–thawing procedure and air entraining agent on freezing–thawing damage by Karagöl, Fatma, Yegin, Yavuz, Polat, Rıza, Benli, Ahmet, Demirboğa, Ramazan

“…This article presents the results of a study dealing with the concrete resistance to repeated cycles of freezing and thawing of nonair entrained, fine…”
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The influence of expanded perlite aggregate on compressive strength, linear autogenous shrinkage, restrained shrinkage, heat of hydration of cement‐based materials by Polat, Rıza, Demirboğa, Ramazan, Karagöl, Fatma

“…This paper investigates the effects of expanded perlite aggregate (EPA) on the properties of mortar and concrete. A volume of 10, 20, and 30% EPA were used…”
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The influence of lightweight aggregate on the physico-mechanical properties of concrete exposed to freeze–thaw cycles by Polat, Rıza, Demirboğa, Ramazan, Karakoç, M. Burhan, Türkmen, İbrahim

“…A laboratory investigation was carried out in order to evaluate the quality of concrete with 10%, 20% and 30% combination of pumice aggregate and expanded…”
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Effect of glass fiber-reinforced polymer and epoxy injection on compressive strength of elevated temperature damaged concrete by Demirboğa, Ramazan, Akif Kaygusuz, Mehmet, Polat, Rıza

“…SUMMARY Glass fiber‐reinforced polymer (GFRP) materials have received a great deal of interest among civil engineers during the past decade. This paper…”
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