Kazım TÜRK - Academia.edu (original) (raw)

Papers by Kazım TÜRK

In this research, the effect of a replacement of limestone powder (LSP) by silica sand (SS) were ... more In this research, the effect of a replacement of limestone powder (LSP) by silica sand (SS) were investigated on the permeation properties of Engineered Cementitious Composite (ECC) for 90 days. For this purpose, five different ECC mixtures were adopted: ECC mixture with only SS (M1) for control purposes and four ECC mixtures in which SS are partially replaced by four levels of replacements (25%, 50%, 75% and 100% by weight of total SS) of LSP. Finally, the performance of the compressive strength and flexural strength at the ages of 28 days increased while this was not valid at the age of 90 days when the LSP content increased. Moreover, it can be said that the use of LSP instead of SS in ECC mixtures had the positive effect on permeation properties due to its fine particle structure compared to SS. Because, the mass loss due to acid attack and the sorptivity coefficient of ECC specimens decreased while the carbonation resistance increased in all ECC mixes compared to the reference ...

In this study, 4x4x16 cm sized mortar specimens were produced by using Yeniköy slag and Ergani tr... more In this study, 4x4x16 cm sized mortar specimens were produced by using Yeniköy slag and Ergani trass which proportion of puzolans varied between 2% to 10% replacement Portland cement. 11 series mortar specimens including 5 series for kind of each puzolan and 1 series without puzolan were prepared. Compressive and tensile strengths and freezing-thawing durability of these mortar specimens were experimentally determined. The results indicated that when 6% Yeniköy slag or 8% Ergani trass was used replacement Portland cement, the highest compressive and tensile strength and the best freezing-thawing durability were obtained. 1. Giriş İnsanlarin su içinde de priz yapabilen, su etkisiyle erimeyen bağlayici üretme çabalari çok eski çağlara kadar uzanir. Sorunun kesin çözümü çimentonun icadi ile mümkün olabilmiştir. Pişmiş ve öğütülmüş kil yapay bir tras, doğal volkanik camlar ise doğal bir tras türü olarak bilinir. Puzolanlar kimyasal olarak SiO2 ve az miktarda Al2O3'den oluşan maddel...

Canadian Journal of Civil Engineering, 2013

In this study, an experimental program is conducted to understand the effect of the limestone pow... more In this study, an experimental program is conducted to understand the effect of the limestone powder (LSP) content replaced by silica sand on the composite properties. For this purpose, five different engineered cementitious composite (ECC) mixtures were adopted: ECC mixture with only silica sand (SS) for control purposes and four ECC mixtures in which SS is partially replaced by four levels of replacements (25%, 50%, 75%, and 100% by weight of total SS) of LSP. The properties of ECC mixtures produced were investigated for the ages of 3, 28, and 90 days. It was concluded that the mechanical properties of the ECC mixtures with LSP were in general higher than the reference mixture with only SS for all curing ages. Increase in the LSP content had a positive effect on the performance of the compressive strength, fracture toughness, and flexural strength at the ages of 3 and 28 days while this was not valid at the age of 90 days when compared to the reference mixture. Also, the ductility...

Construction and Building Materials, Dec 1, 2012

h i g h l i g h t s " To provide greater sustainability in construction, use of mineral admixture... more h i g h l i g h t s " To provide greater sustainability in construction, use of mineral admixtures is inevitable. " Thus, there will be pressures to maximize their effectiveness in many respects. " Use of ternary blends improved the deficiencies of SCMs with binary blends of fly ash.

Contact Dermatitis, Apr 1, 1993

Construction and Building Materials, 2019

h i g h l i g h t s Fresh and hardened properties of self-consolidating Portland limestone cement... more h i g h l i g h t s Fresh and hardened properties of self-consolidating Portland limestone cement mortars are considered. High volume limestone powder is replaced by cement up to 35% (by weight). 15% of LSP as a replacement is the most crucial beyond which performance properties are affected at different rates.

Structural Engineering and Mechanics, Feb 20, 2005

The paper reports on a study of bond strength between reduced-water-content concrete and tensile ... more The paper reports on a study of bond strength between reduced-water-content concrete and tensile reinforcement in spliced mode. Three different diameters (12, 16 and 22 mm) of tensile steel were spliced in the constant moment zone, where there were two bars of same size in tension. For each diameter of reinforcement, a total of nine beams (1900 × 270 × 180 mm) were tested, of which three beams were with no axial force (positive bending) and the other six beams were with axial force (combined bending). The splice length was selected so that bars would fail in bond, splitting the concrete cover in the splice region, before reaching the yield point. It was found that there was a considerable size effect in the experimental results, i.e., as the diameter of the reinforcement reduced the bond strength and the deflection recorded at the midspan increased significantly, whilst the stiffness of the beams reduced. It was also found for all reinforcement sizes that higher bond strength and stiffness were obtained for beams tested in combined bending than that of the beams tested in positive bending only.

Structural Engineering and Mechanics, Oct 25, 2003

The primary aim of this study was to investigate the bond strength between reinforcement and conc... more The primary aim of this study was to investigate the bond strength between reinforcement and concrete. Large sized nine beams, which were produced from concrete with approximately f c ' = 30 MPa, were tested. Each beam was designed to include two bars in tension, spliced at the center of the span. The splice length was selected so that bars would fail in bond, splitting the concrete cover in the splice region, before reaching the yield point. In all experiments, the variable used was the reinforcing bar diameter. In the experiments, beam specimens were loaded in positive bending with the splice in a constant moment region. In consequence, as the bar diameter increased, bond strength and ductility reduced but, however, the stiffnesses of the beams (resistance to deflection) increased. Morever, a empirical equation was obtained to calculate the bond strength of reinforcement and this equation was compared with Orangun et al. (1977) and Esfahani and Rangan (1998). There was a good agreement between the values computed from the predictive equation and those computed from equations of Orangun et al. (1977) and Esfahani and Rangan (1998).

Sigma Journal of Engineering and Natural Sciences – Sigma Mühendislik ve Fen Bilimleri Dergisi

In this study, the effects of different blending and combination of macro and micro steel fibers ... more In this study, the effects of different blending and combination of macro and micro steel fibers on the shear strength, ductility, failure mode and crack propagation of hybrid fiber reinforced self-compacting concrete beams were investigated experimentally and statistically. In the design of concrete, straight steel micro and hooked steel macro fibers were used. For this purpose, twelve 200x200x1000 mm reinforced concrete beam specimens, which had same reinforcing bar details, were produced and tested under four-point bending to investigate ultimate shear strength, displacement ductility, crack patterns, mode of failure, energy absorption capacity and yield stiffness properties. In conclusion, the beam specimens produced from self-compacting concrete (SCC) with hybrid steel fiber prevented the shear failure while all SCC beam specimens containing hybrid steel fiber reached the ultimate bearing capacity with the mode of flexural failure. Also, it can be clearly emphasized that the SCC beam specimens with hybrid steel fiber had higher shear strength, energy absorption capacity and yield stiffness than those of beam specimens containing only macro or micro steel fiber.

Fırat Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, 2001

Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, Jun 9, 2021

Bu çalışmada, tek ve karma lif takviyesinin aderans dayanımına etkisini incelemek için altı adet ... more Bu çalışmada, tek ve karma lif takviyesinin aderans dayanımına etkisini incelemek için altı adet tam ölçekli 200x300x2000 mm boyutlarında betonarme kiriş numunesi dört noktalı eğilme altında test edilmiştir. Bu amaçla, betonarme kiriş numuneleri lif takviyesiz, tek lif (%1 makro çelik lif) ve karma lif (%0.8 makro ve %0.2 mikro çelik lif) takviyeli olarak döküldü. Her bir kiriş numunesi, çekme bölgesinde iki adet donatı çeliğinin açıklık ortasında bindirmeli ekli olarak tasarlanmıştır. Bindirme boyu donatının akma dayanımına ulaşmadan önce bindirme bölgesinde beton örtüsünün yarılmasıyla aderans göçmesi gösterecek şekilde seçilmiştir. Deneysel çalışmada, donatı çapı, bindirme boyu ve donatı detayları sabit tutulurken, lif tip ve kombinasyonları değişken olarak belirlenmiştir. Sonuç olarak, lif takviyeli tüm betonarme kiriş numunelerinin beton ve çelik donatı arasındaki aderans dayanımı, lif takviyesiz kiriş numunelerine göre artış gösterirken, karma lif takviyeli kiriş numunelerinin aderans dayanımı ise en yüksek bulunmuştur. Karma lif takviyeli kiriş numunelerinde sünek göçme gözlemlenmiş ve çoklu çatlak davranışı sonucu genişliği daha az fakat daha fazla sayıda çatlak oluştuğu belirlenmiştir. Ayrıca, lif takviyeli kiriş numunelerinden elde edilen aderans dayanımına ait deneysel verilerin, analitik bulgularla çok iyi bir uyum içinde olduğu bulunmuştur.

Structural Engineering and Mechanics, 2003

The primary aim of this study was to investigate the bond strength between reinforcement and conc... more The primary aim of this study was to investigate the bond strength between reinforcement and concrete. Large sized nine beams, which were produced from concrete with approximately f c ' = 30 MPa, were tested. Each beam was designed to include two bars in tension, spliced at the center of the span. The splice length was selected so that bars would fail in bond, splitting the concrete cover in the splice region, before reaching the yield point. In all experiments, the variable used was the reinforcing bar diameter. In the experiments, beam specimens were loaded in positive bending with the splice in a constant moment region. In consequence, as the bar diameter increased, bond strength and ductility reduced but, however, the stiffnesses of the beams (resistance to deflection) increased. Morever, a empirical equation was obtained to calculate the bond strength of reinforcement and this equation was compared with Orangun et al. (1977) and Esfahani and Rangan (1998). There was a good agreement between the values computed from the predictive equation and those computed from equations of Orangun et al. (1977) and Esfahani and Rangan (1998).

Structural Engineering and Mechanics, 2005

The paper reports on a study of bond strength between reduced-water-content concrete and tensile ... more The paper reports on a study of bond strength between reduced-water-content concrete and tensile reinforcement in spliced mode. Three different diameters (12, 16 and 22 mm) of tensile steel were spliced in the constant moment zone, where there were two bars of same size in tension. For each diameter of reinforcement, a total of nine beams (1900 × 270 × 180 mm) were tested, of which three beams were with no axial force (positive bending) and the other six beams were with axial force (combined bending). The splice length was selected so that bars would fail in bond, splitting the concrete cover in the splice region, before reaching the yield point. It was found that there was a considerable size effect in the experimental results, i.e., as the diameter of the reinforcement reduced the bond strength and the deflection recorded at the midspan increased significantly, whilst the stiffness of the beams reduced. It was also found for all reinforcement sizes that higher bond strength and stiffness were obtained for beams tested in combined bending than that of the beams tested in positive bending only.

firat.edu.tr

Science and Eng. J of Fırat Univ. ... Kendiliğinden Yerleşen Betondan Üretilmiş Kirişlerin Aderan... more Science and Eng. J of Fırat Univ. ... Kendiliğinden Yerleşen Betondan Üretilmiş Kirişlerin Aderans Dayanımının Deneysel ve Sayısal Olarak İncelenmesi ... Ahmet Benli, Kazım Türk*, Yusuf Calayır Fırat Üniversitesi Mühendislik Fakültesi İnşaat Mühendisliği Bölümü, Elazığ, Türkiye. ...

INDIAN JOURNAL OF …, 2006

The paper reports an experimental study investigating the influence of curing conditions on the e... more The paper reports an experimental study investigating the influence of curing conditions on the engineering properties of self-compacting concretes (SCC). Portland cement (PC) concrete and two types of SCC, ie, SCC-I with fly ash and SCC-II with silica fume, specimens are ...

Indian Journal of Engineering …, 2007

This paper reports an experimental study carried out to investigate the influence of addition of ... more This paper reports an experimental study carried out to investigate the influence of addition of pozzolanic materials and curing regimes on the mechanical properties and the capillary water absorption (sorptivity) characteristics of self-compacting concrete (SCC). Portland cement ...

Construction and Building Materials, 2012

h i g h l i g h t s " To provide greater sustainability in construction, use of mineral admixture... more h i g h l i g h t s " To provide greater sustainability in construction, use of mineral admixtures is inevitable. " Thus, there will be pressures to maximize their effectiveness in many respects. " Use of ternary blends improved the deficiencies of SCMs with binary blends of fly ash.

Journal of building engineering, Oct 1, 2023

In this research, the effect of a replacement of limestone powder (LSP) by silica sand (SS) were ... more In this research, the effect of a replacement of limestone powder (LSP) by silica sand (SS) were investigated on the permeation properties of Engineered Cementitious Composite (ECC) for 90 days. For this purpose, five different ECC mixtures were adopted: ECC mixture with only SS (M1) for control purposes and four ECC mixtures in which SS are partially replaced by four levels of replacements (25%, 50%, 75% and 100% by weight of total SS) of LSP. Finally, the performance of the compressive strength and flexural strength at the ages of 28 days increased while this was not valid at the age of 90 days when the LSP content increased. Moreover, it can be said that the use of LSP instead of SS in ECC mixtures had the positive effect on permeation properties due to its fine particle structure compared to SS. Because, the mass loss due to acid attack and the sorptivity coefficient of ECC specimens decreased while the carbonation resistance increased in all ECC mixes compared to the reference ...

In this study, 4x4x16 cm sized mortar specimens were produced by using Yeniköy slag and Ergani tr... more In this study, 4x4x16 cm sized mortar specimens were produced by using Yeniköy slag and Ergani trass which proportion of puzolans varied between 2% to 10% replacement Portland cement. 11 series mortar specimens including 5 series for kind of each puzolan and 1 series without puzolan were prepared. Compressive and tensile strengths and freezing-thawing durability of these mortar specimens were experimentally determined. The results indicated that when 6% Yeniköy slag or 8% Ergani trass was used replacement Portland cement, the highest compressive and tensile strength and the best freezing-thawing durability were obtained. 1. Giriş İnsanlarin su içinde de priz yapabilen, su etkisiyle erimeyen bağlayici üretme çabalari çok eski çağlara kadar uzanir. Sorunun kesin çözümü çimentonun icadi ile mümkün olabilmiştir. Pişmiş ve öğütülmüş kil yapay bir tras, doğal volkanik camlar ise doğal bir tras türü olarak bilinir. Puzolanlar kimyasal olarak SiO2 ve az miktarda Al2O3'den oluşan maddel...

Canadian Journal of Civil Engineering, 2013

In this study, an experimental program is conducted to understand the effect of the limestone pow... more In this study, an experimental program is conducted to understand the effect of the limestone powder (LSP) content replaced by silica sand on the composite properties. For this purpose, five different engineered cementitious composite (ECC) mixtures were adopted: ECC mixture with only silica sand (SS) for control purposes and four ECC mixtures in which SS is partially replaced by four levels of replacements (25%, 50%, 75%, and 100% by weight of total SS) of LSP. The properties of ECC mixtures produced were investigated for the ages of 3, 28, and 90 days. It was concluded that the mechanical properties of the ECC mixtures with LSP were in general higher than the reference mixture with only SS for all curing ages. Increase in the LSP content had a positive effect on the performance of the compressive strength, fracture toughness, and flexural strength at the ages of 3 and 28 days while this was not valid at the age of 90 days when compared to the reference mixture. Also, the ductility...

Construction and Building Materials, Dec 1, 2012

h i g h l i g h t s " To provide greater sustainability in construction, use of mineral admixture... more h i g h l i g h t s " To provide greater sustainability in construction, use of mineral admixtures is inevitable. " Thus, there will be pressures to maximize their effectiveness in many respects. " Use of ternary blends improved the deficiencies of SCMs with binary blends of fly ash.

Contact Dermatitis, Apr 1, 1993

Construction and Building Materials, 2019

h i g h l i g h t s Fresh and hardened properties of self-consolidating Portland limestone cement... more h i g h l i g h t s Fresh and hardened properties of self-consolidating Portland limestone cement mortars are considered. High volume limestone powder is replaced by cement up to 35% (by weight). 15% of LSP as a replacement is the most crucial beyond which performance properties are affected at different rates.

Structural Engineering and Mechanics, Feb 20, 2005

The paper reports on a study of bond strength between reduced-water-content concrete and tensile ... more The paper reports on a study of bond strength between reduced-water-content concrete and tensile reinforcement in spliced mode. Three different diameters (12, 16 and 22 mm) of tensile steel were spliced in the constant moment zone, where there were two bars of same size in tension. For each diameter of reinforcement, a total of nine beams (1900 × 270 × 180 mm) were tested, of which three beams were with no axial force (positive bending) and the other six beams were with axial force (combined bending). The splice length was selected so that bars would fail in bond, splitting the concrete cover in the splice region, before reaching the yield point. It was found that there was a considerable size effect in the experimental results, i.e., as the diameter of the reinforcement reduced the bond strength and the deflection recorded at the midspan increased significantly, whilst the stiffness of the beams reduced. It was also found for all reinforcement sizes that higher bond strength and stiffness were obtained for beams tested in combined bending than that of the beams tested in positive bending only.

Structural Engineering and Mechanics, Oct 25, 2003

The primary aim of this study was to investigate the bond strength between reinforcement and conc... more The primary aim of this study was to investigate the bond strength between reinforcement and concrete. Large sized nine beams, which were produced from concrete with approximately f c ' = 30 MPa, were tested. Each beam was designed to include two bars in tension, spliced at the center of the span. The splice length was selected so that bars would fail in bond, splitting the concrete cover in the splice region, before reaching the yield point. In all experiments, the variable used was the reinforcing bar diameter. In the experiments, beam specimens were loaded in positive bending with the splice in a constant moment region. In consequence, as the bar diameter increased, bond strength and ductility reduced but, however, the stiffnesses of the beams (resistance to deflection) increased. Morever, a empirical equation was obtained to calculate the bond strength of reinforcement and this equation was compared with Orangun et al. (1977) and Esfahani and Rangan (1998). There was a good agreement between the values computed from the predictive equation and those computed from equations of Orangun et al. (1977) and Esfahani and Rangan (1998).

Sigma Journal of Engineering and Natural Sciences – Sigma Mühendislik ve Fen Bilimleri Dergisi

In this study, the effects of different blending and combination of macro and micro steel fibers ... more In this study, the effects of different blending and combination of macro and micro steel fibers on the shear strength, ductility, failure mode and crack propagation of hybrid fiber reinforced self-compacting concrete beams were investigated experimentally and statistically. In the design of concrete, straight steel micro and hooked steel macro fibers were used. For this purpose, twelve 200x200x1000 mm reinforced concrete beam specimens, which had same reinforcing bar details, were produced and tested under four-point bending to investigate ultimate shear strength, displacement ductility, crack patterns, mode of failure, energy absorption capacity and yield stiffness properties. In conclusion, the beam specimens produced from self-compacting concrete (SCC) with hybrid steel fiber prevented the shear failure while all SCC beam specimens containing hybrid steel fiber reached the ultimate bearing capacity with the mode of flexural failure. Also, it can be clearly emphasized that the SCC beam specimens with hybrid steel fiber had higher shear strength, energy absorption capacity and yield stiffness than those of beam specimens containing only macro or micro steel fiber.

Fırat Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, 2001

Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, Jun 9, 2021

Bu çalışmada, tek ve karma lif takviyesinin aderans dayanımına etkisini incelemek için altı adet ... more Bu çalışmada, tek ve karma lif takviyesinin aderans dayanımına etkisini incelemek için altı adet tam ölçekli 200x300x2000 mm boyutlarında betonarme kiriş numunesi dört noktalı eğilme altında test edilmiştir. Bu amaçla, betonarme kiriş numuneleri lif takviyesiz, tek lif (%1 makro çelik lif) ve karma lif (%0.8 makro ve %0.2 mikro çelik lif) takviyeli olarak döküldü. Her bir kiriş numunesi, çekme bölgesinde iki adet donatı çeliğinin açıklık ortasında bindirmeli ekli olarak tasarlanmıştır. Bindirme boyu donatının akma dayanımına ulaşmadan önce bindirme bölgesinde beton örtüsünün yarılmasıyla aderans göçmesi gösterecek şekilde seçilmiştir. Deneysel çalışmada, donatı çapı, bindirme boyu ve donatı detayları sabit tutulurken, lif tip ve kombinasyonları değişken olarak belirlenmiştir. Sonuç olarak, lif takviyeli tüm betonarme kiriş numunelerinin beton ve çelik donatı arasındaki aderans dayanımı, lif takviyesiz kiriş numunelerine göre artış gösterirken, karma lif takviyeli kiriş numunelerinin aderans dayanımı ise en yüksek bulunmuştur. Karma lif takviyeli kiriş numunelerinde sünek göçme gözlemlenmiş ve çoklu çatlak davranışı sonucu genişliği daha az fakat daha fazla sayıda çatlak oluştuğu belirlenmiştir. Ayrıca, lif takviyeli kiriş numunelerinden elde edilen aderans dayanımına ait deneysel verilerin, analitik bulgularla çok iyi bir uyum içinde olduğu bulunmuştur.

Structural Engineering and Mechanics, 2003

The primary aim of this study was to investigate the bond strength between reinforcement and conc... more The primary aim of this study was to investigate the bond strength between reinforcement and concrete. Large sized nine beams, which were produced from concrete with approximately f c ' = 30 MPa, were tested. Each beam was designed to include two bars in tension, spliced at the center of the span. The splice length was selected so that bars would fail in bond, splitting the concrete cover in the splice region, before reaching the yield point. In all experiments, the variable used was the reinforcing bar diameter. In the experiments, beam specimens were loaded in positive bending with the splice in a constant moment region. In consequence, as the bar diameter increased, bond strength and ductility reduced but, however, the stiffnesses of the beams (resistance to deflection) increased. Morever, a empirical equation was obtained to calculate the bond strength of reinforcement and this equation was compared with Orangun et al. (1977) and Esfahani and Rangan (1998). There was a good agreement between the values computed from the predictive equation and those computed from equations of Orangun et al. (1977) and Esfahani and Rangan (1998).

Structural Engineering and Mechanics, 2005

The paper reports on a study of bond strength between reduced-water-content concrete and tensile ... more The paper reports on a study of bond strength between reduced-water-content concrete and tensile reinforcement in spliced mode. Three different diameters (12, 16 and 22 mm) of tensile steel were spliced in the constant moment zone, where there were two bars of same size in tension. For each diameter of reinforcement, a total of nine beams (1900 × 270 × 180 mm) were tested, of which three beams were with no axial force (positive bending) and the other six beams were with axial force (combined bending). The splice length was selected so that bars would fail in bond, splitting the concrete cover in the splice region, before reaching the yield point. It was found that there was a considerable size effect in the experimental results, i.e., as the diameter of the reinforcement reduced the bond strength and the deflection recorded at the midspan increased significantly, whilst the stiffness of the beams reduced. It was also found for all reinforcement sizes that higher bond strength and stiffness were obtained for beams tested in combined bending than that of the beams tested in positive bending only.

firat.edu.tr

Science and Eng. J of Fırat Univ. ... Kendiliğinden Yerleşen Betondan Üretilmiş Kirişlerin Aderan... more Science and Eng. J of Fırat Univ. ... Kendiliğinden Yerleşen Betondan Üretilmiş Kirişlerin Aderans Dayanımının Deneysel ve Sayısal Olarak İncelenmesi ... Ahmet Benli, Kazım Türk*, Yusuf Calayır Fırat Üniversitesi Mühendislik Fakültesi İnşaat Mühendisliği Bölümü, Elazığ, Türkiye. ...

INDIAN JOURNAL OF …, 2006

The paper reports an experimental study investigating the influence of curing conditions on the e... more The paper reports an experimental study investigating the influence of curing conditions on the engineering properties of self-compacting concretes (SCC). Portland cement (PC) concrete and two types of SCC, ie, SCC-I with fly ash and SCC-II with silica fume, specimens are ...

Indian Journal of Engineering …, 2007

This paper reports an experimental study carried out to investigate the influence of addition of ... more This paper reports an experimental study carried out to investigate the influence of addition of pozzolanic materials and curing regimes on the mechanical properties and the capillary water absorption (sorptivity) characteristics of self-compacting concrete (SCC). Portland cement ...

Construction and Building Materials, 2012

h i g h l i g h t s " To provide greater sustainability in construction, use of mineral admixture... more h i g h l i g h t s " To provide greater sustainability in construction, use of mineral admixtures is inevitable. " Thus, there will be pressures to maximize their effectiveness in many respects. " Use of ternary blends improved the deficiencies of SCMs with binary blends of fly ash.

Journal of building engineering, Oct 1, 2023