Yazar "Demir, Ilhami" için listeleme
-
The effect of different fiber reinforcement on the thermal and mechanical properties of autoclaved aerated concrete
Pehlivanli, Zuhtu Onur; Uzun, Ibrahim; Yucel, Zeynep Pinar; Demir, Ilhami (Elsevier Sci Ltd, 2016)In this study, the changes in thermal conductivity value, compression and flexural strength of autoclaved aerated concrete were investigated experimentally by adding polypropylene, carbon, basalt and glass fibers into the ... -
Effect of sulfate on cement mortars containing Li2SO4, LiNO3, Li2CO3 and LiBr
Demir, Ilhami; Sevim, Ozer (Elsevier Sci Ltd, 2017)The purpose of this study is to explore the influence of sulfate on the fresh and hardened mortars containing lithium additives added with the aim to prevent alkali-silica reaction (ASR). Four different types of lithium ... -
The effects of shrinkage-reducing admixtures used in self-compacting concrete on its strength and durability
Demir, Ilhami; Sevim, Ozer; Tekin, Emrah (Elsevier Sci Ltd, 2018)This study explores the effects of shrinkage-reducing admixtures (SRA) used in self-compacting concrete (SCC), a specific type of concrete which is gradually receiving widespread use, yet to be improved to the desired ... -
Effects of sulfate on cement mortar with hybrid pozzolan substitution
Demir, Ilhami; Guzelkucuk, Selahattin; Sevim, Ozer (Elsevier - Division Reed Elsevier India Pvt Ltd, 2018)Sulfate is one of the most important chemical risks which affect the durability of concrete and reinforced concrete structures. Therefore, this study investigates the effects of sulfate on blended cement mortars. In this ... -
Enhancement on mechanical and durability performances of binary cementitious systems by optimizing particle size distribution of fly ash
Filazi, Ahmet; Demir, Ilhami; Sevim, Ozer (SPRINGERNATURE, 2020)Fly ash is a well-known supplementary cementitious material that is the by-product of coal-fired thermal power plants. The contribution of fly ash to the enhancement of the mechanical and durability properties of cementitious ... -
Estimating the Properties of Ground-Waste-Brick Mortars Using DNN and ANN
Karaci, Abdulkadir; Yaprak, Hasbi; Ozkaraca, Osman; Demir, Ilhami; Simsek, Osman (Tech Science Press, 2019)In this study, deep-neural-network (DNN)- and artificial-neural-network (ANN)- based models along with regression models have been developed to estimate the pressure, bending and elongation values of ground-brick (GB)-added ... -
Mechanical and microstructural features of autoclaved aerated concrete reinforced with autoclaved polypropylene, carbon, basalt and glass fiber
Pehlivanli, Zuhtu Onur; Uzun, Ibrahim; Demir, Ilhami (Elsevier Sci Ltd, 2015)Autoclaved aerated concrete (MC) is a construction material obtained by being pore-forming of the mixture prepared with finely crushed siliceous aggregate lime, water and limestone with the addition of aluminum powder and ... -
The mechanical and microstructural properties of Li2SO4, LiNO3, Li2CO3 and LiBr added mortars exposed to alkali-silica reaction
Demir, Ilhami; Arslan, Metin (Elsevier Sci Ltd, 2013)Aim of this study intends analyzing the effects of lithium additives on fresh and hardened cement mortars. In this study, mortar specimens were prepared by adding four types of additives (Li2SO4, LiNO3, Li2CO3 and LiBr) ... -
Mechanical properties and microstructure of cement multicomponent systems containing pozzolan materials under sulfate attack
Guzelkucuk, Selahattin; Demir, Ilhami; Sevim, Ozer; Kalkan, Ilker (STOWARZYSZENIE PRODUCENTOW CEMENTU, 2020)Sulfates are a significant chemical components that may lead to failures of cement concrete composites. The present study is dedicated to analyzing the effects of sulfate on the microstructure of cement composite mortars. ... -
The mechanical properties of Alkali-silica reactive mortars containing same amounts of silica fume and fly ash
Demir, Ilhami (Gazi Univ, Fac Engineering Architecture, 2010)In this study, the Alkali silica reaction (ASR) effects on the mortars containing the same proportions of silica fume (SF) and fly ash (FA) instead of cement were investigated. SF and FA, used to control the expansion ... -
Microstructural properties of lithium-added cement mortars subjected to alkali-silica reactions
Demir, Ilhami; Sevim, Ozer; Kalkan, Ilker (Indian Acad Sciences, 2018)Little comparative research has been done on the efficiency of lithium additives to reduce the alkali-silica reaction (ASR) expansion. To reduce the ASR effects of reactive aggregate, different mortar bars were obtained ... -
Microstructural, Physical And Mechanical Properties Of Aerated Concrete Containing Fly Ash Under High Temperature And Pressure
Demir, Ilhami; Sevim, Ozer; Ozel, Gokhan; Dogan, Orhan (SERBAN SOLACOLU FOUNDATION, 2020)This study analyzed the effects of the use of fly ash as a replacement for the quartz sand on the compressive strength, dry density, moisture content and thermal conductivity of the aerated concrete. Based on the production ... -
Optimization of fly ash particle size distribution for cementitious systems with high compactness
Sevim, Ozer; Demir, Ilhami (Elsevier Sci Ltd, 2019)Compactness is of special importance for aggregates in concrete; however, the particle-size distribution (gradation) of powdery ingredients is commonly disregarded especially for pozzolanic materials such as fly ash. Without ... -
Performance of cement mortars replaced by ground waste brick in different aggressive conditions
Demir, Ilhami; Yaprak, Hasbi; Simsek, Osman (Univ Chemistry & Technology, Prague, 2011)This article investigates the sulphate resistance of cement mortars when subjected to different exposure conditions. Cement mortars were prepared using ground waste brick (GWB) as a pozzolanic partial replacement for cement ... -
Physical and permeability properties of cementitious mortars having fly ash with optimized particle size distribution
Sevim, Ozer; Demir, Ilhami (Elsevier Sci Ltd, 2019)Gradation of powder materials is often avoided in pozzolanic materials, such as fly ash and slag. Without good gradation, powder materials result in high void ratios similar to the case of aggregates and the products ... -
Prediction of the effect of varying cure conditions and w/c ratio on the compressive strength of concrete using artificial neural networks
Yaprak, Hasbi; Karaci, Abdulkadir; Demir, Ilhami (Springer London Ltd, 2013)The present study aims at developing an artificial neural network (ANN) to predict the compressive strength of concrete. A data set containing a total of 72 concrete samples was used in the study. The following constituted ... -
Restrained shrinkage cracking of self-consolidating concrete roads
Akgungor, Ali Payidar; Sevim, Ozer; Kalkan, Ilker; Demir, Ilhami (Walter De Gruyter Gmbh, 2018)The present study is dedicated to investigate the liability of continuously reinforced concrete pavement (CRCP) cast with self-consolidating concrete (SCC) to restrained shrinkage cracking and the values of restraint ... -
A study on ASR mitigation by optimized particle size distribution
Demir, Ilhami; Sivrikaya, Burak; Sevim, Ozer; Baran, Mehmet (ELSEVIER SCI LTD, 2020)In this study, the effect of alkali-silica reaction on binary cementitious composite systems incorporating fly ash or slag having optimized particle size distribution has been investigated. Specimens have been exposed to ...
