Graphene Oxide-Reinforced Cementitious Concrete Composites That Incorporates Silica Fume And Fly Ash

İsmail Raci Bayer

Article Details

Graphene Oxide-Reinforced Cementitious Concrete Composites That Incorporates Silica Fume And Fly Ash

Authors:

İsmail Raci Bayer

Publisher:

Kirikkale University

Main Topics:

Civil Engineering

Journal:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.526-534

Document Type:

Article

Publication Date:

7/2023

Document Language:

English

Document ID (Org No.):

2001284765

pISSN:

1308-5506

Keywords:

Abstract:

 In recent years, nano-sized graphene oxide GO has come to the fore as a promising material for enhancing the mechanical and durability performance of cementitious composites. On the other hand, partial substitution of industrial wastes and by-products into cementitious composites attracts the attention of researchers in order to ensure long-term sustainability. In order to combine these two aspects, the main focus of this study is to examine the effect of 0.05 and 0.1 GO-reinforcement on the slump, 7 and 28-day compressive and flexural strength and 28-day rapid chloride permeability test RCPT properties of cementitious composites. In this context, mixtures with three different binder combinations, a control, a silica fume SF substitution, and a fly ash FA substitution, were designed. The results showed that GO-reinforcement reduced the slump values of the mixtures between 5-15 mm, while the 28-day compressive strengths increased in the range of 9.82-13.61 with 0.05 GO-reinforcement, and in the range of 17.02-20.68 with 0.1 GO-reinforcement. The 28-day flexural strength of the mixtures increased by about 10 on average as a result of 0.1 GO-reinforcement. According to the RCPT anaylses, it was observed that the chloride permeability of the mixtures decreased up to 18.85 with 0.1 GO-reinforcement.

 In recent years, nano-sized graphene oxide GO has come to the fore as a promising material for enhancing the mechanical and durability performance of cementitious composites. On the other hand, partial substitution of industrial wastes and by-products into cementitious composites attracts the attention of researchers in order to ensure long-term sustainability. In order to combine these two aspects, the main focus of this study is to examine the effect of 0.05 and 0.1 GO-reinforcement on the slump, 7 and 28-day compressive and flexural strength and 28-day rapid chloride permeability test RCPT properties of cementitious composites. In this context, mixtures with three different binder combinations, a control, a silica fume SF substitution, and a fly ash FA substitution, were designed. The results showed that GO-reinforcement reduced the slump values of the mixtures between 5-15 mm, while the 28-day compressive strengths increased in the range of 9.82-13.61 with 0.05 GO-reinforcement, and in the range of 17.02-20.68 with 0.1 GO-reinforcement. The 28-day flexural strength of the mixtures increased by about 10 on average as a result of 0.1 GO-reinforcement. According to the RCPT anaylses, it was observed that the chloride permeability of the mixtures decreased up to 18.85 with 0.1 GO-reinforcement.

 In recent years, nano-sized graphene oxide GO has come to the fore as a promising material for enhancing the mechanical and durability performance of cementitious composites. On the other hand, partial substitution of industrial wastes and by-products into cementitious composites attracts the attention of researchers in order to ensure long-term sustainability. In order to combine these two aspects, the main focus of this study is to examine the effect of 0.05 and 0.1 GO-reinforcement on the slump, 7 and 28-day compressive and flexural strength and 28-day rapid chloride permeability test RCPT properties of cementitious composites. In this context, mixtures with three different binder combinations, a control, a silica fume SF substitution, and a fly ash FA substitution, were designed. The results showed that GO-reinforcement reduced the slump values of the mixtures between 5-15 mm, while the 28-day compressive strengths increased in the range of 9.82-13.61 with 0.05 GO-reinforcement, and in the range of 17.02-20.68 with 0.1 GO-reinforcement. The 28-day flexural strength of the mixtures increased by about 10 on average as a result of 0.1 GO-reinforcement. According to the RCPT anaylses, it was observed that the chloride permeability of the mixtures decreased up to 18.85 with 0.1 GO-reinforcement.

 Son yıllarda, nano boyutlu grafen oksit GO, çimentolu kompozitlerin mekanik ve dayanıklılık performansını artırmak için umut verici bir malzeme olarak öne çıkmıştır. Öte yandan, endüstriyel atıkların ve yan ürünlerin kısmi olarak çimentolu kompozitlere ikamesi, uzun vadeli sürdürülebilirliği sağlamak için araştırmacıların ilgisini çekmektedir. Bu iki yönü birleştirmek için, bu çalışmanın ana odak noktası, 0,05 ve 0,1 GO takviyesinin slump, 7 ve 28 günlük basınç ve eğilme dayanımı ve 28 günlük hızlı klorür geçirgenliği testi üzerindeki etkisini incelemektir. Bu bağlamda, kontrol, silis dumanı SF ikamesi ve uçucu kül FA ikamesi olmak üzere üç farklı bağlayıcı kombinasyonuna sahip karışımlar tasarlanmıştır. Sonuçlar, GO-takviyesinin karışımların slamp değerlerini 5-15 mm arasında azalttığını, 28 günlük basınç dayanımlarını ise 0,05 GO takviyesi ile 9,82-13,61 aralığında, 0,1 GO takviyesi ile 17,02-20,68 aralığında arttığını göstermiştir. Karışımların 28 günlük eğilme mukavemeti, 0,1 GO takviyesi sonucunda ortalama olarak yaklaşık 10 artmıştır. RCPT analizlerine göre, 0,1 GO takviyesi ile karışımların klorür geçirgenliğinin 18,85e kadar düştüğü gözlemlenmiştir.

Article Details

Graphene Oxide-Reinforced Cementitious Concrete Composites That Incorporates Silica Fume And Fly Ash

Authors:

İsmail Raci Bayer

Publisher:

Kirikkale University

Main Topics:

Civil Engineering

Journal:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.526-534

Document Type:

Article

Publication Date:

7/2023

Document Language:

English

Document ID (Org No.):

2001284765

pISSN:

1308-5506

Graphene-oxide

nanomaterial

cement

mechanical properties

RCPT.

Grafen oksit

nanomalzeme

çimento

mekanik özellikler

RCPT.

Issues

Article Details

Authors: İsmail Raci Bayer

Publisher: Kirikkale University

Main Topics: Civil Engineering

Journal: International Journal of Engineering Research and Development Vol.15 Issue 2, pp.526-534

Document Type: Article

Publication Date: 7/2023

Document Language: English

Document ID (Org No.): 2001284765

pISSN: 1308-5506

Issues

Authors:

İsmail Raci Bayer

Publisher:

Kirikkale University

Main Topics:

Civil Engineering

Journal:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.526-534

Document Type:

Article

Publication Date:

7/2023

Document Language:

English

Document ID (Org No.):

2001284765

pISSN:

1308-5506