The Influence of Using Basaltic Pumice Powder as a Binder on the Mechanical Strength of Geopolymer Mortars

Taha Salah Wahhab Al-antaki; Anıl Niş

Makale detayları

The Influence of Using Basaltic Pumice Powder as a Binder on the Mechanical Strength of Geopolymer Mortars

Yazarlar:

Taha Salah Wahhab Al-antaki | Anıl Niş

Yayıncı:

Cukurova University

Ana Başlıklar:

Yapı Malzemeleri

Dergi:

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi Vol.40 Issue 3, pp.687-697

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

Türkçe

Document ID (Org No.):

2001358988

pISSN:

2757-9255

Anahtar kelimeler:

Özet:

 In this study, the influence of 20 and 40 volcanic origin basaltic pumice on the mechanical properties of geopolymer mortars was examined. F-type fly ash and ground granulated blast furnace slag were used as binders, and sodium silicate and sodium hydroxide were used as alkali activators. Compressive and bending strengths, and ultrasonic pulse velocities of geopolymers produced with pumice P at 20 and 40 ratios were examined on the 7., 28., and 56. days. Also, effects of different sodium hydroxide molarities 8M, 12M and 16M on mechanical strengths were investigated. It was found that compressive strength decreases as pumice ratio increases, and compressive strength enhances as sodium hydroxide molarity increases. The highest compressive strength was obtained as 61.62 MPa in the P0-16M sample, while the lowest compressive strength was obtained as 44.14 MPa in the P40-8M sample at 56 days. Geopolymers up to 40 pumice provide the minimum C2530 concrete compressive strength class that can be used in the construction of structures specified in current standards.

 In this study, the influence of 20 and 40 volcanic origin basaltic pumice on the mechanical properties of geopolymer mortars was examined. F-type fly ash and ground granulated blast furnace slag were used as binders, and sodium silicate and sodium hydroxide were used as alkali activators. Compressive and bending strengths, and ultrasonic pulse velocities of geopolymers produced with pumice P at 20 and 40 ratios were examined on the 7., 28., and 56. days. Also, effects of different sodium hydroxide molarities 8M, 12M and 16M on mechanical strengths were investigated. It was found that compressive strength decreases as pumice ratio increases, and compressive strength enhances as sodium hydroxide molarity increases. The highest compressive strength was obtained as 61.62 MPa in the P0-16M sample, while the lowest compressive strength was obtained as 44.14 MPa in the P40-8M sample at 56 days. Geopolymers up to 40 pumice provide the minimum C2530 concrete compressive strength class that can be used in the construction of structures specified in current standards.

 In this study, the influence of 20 and 40 volcanic origin basaltic pumice on the mechanical properties of geopolymer mortars was examined. F-type fly ash and ground granulated blast furnace slag were used as binders, and sodium silicate and sodium hydroxide were used as alkali activators. Compressive and bending strengths, and ultrasonic pulse velocities of geopolymers produced with pumice P at 20 and 40 ratios were examined on the 7., 28., and 56. days. Also, effects of different sodium hydroxide molarities 8M, 12M and 16M on mechanical strengths were investigated. It was found that compressive strength decreases as pumice ratio increases, and compressive strength enhances as sodium hydroxide molarity increases. The highest compressive strength was obtained as 61.62 MPa in the P0-16M sample, while the lowest compressive strength was obtained as 44.14 MPa in the P40-8M sample at 56 days. Geopolymers up to 40 pumice provide the minimum C2530 concrete compressive strength class that can be used in the construction of structures specified in current standards.

 Bu çalışmada, 20 ve 40 oranlarında volkanik kökenli bazaltik pomza kullanımı ile üretilen geopolimer harçların mekanik özelliklerine olan etkisi incelenmiştir. Geopolimer numuneler üretilirken bağlayıcı olarak F-tipi uçucu kül ile yüksek fırın cürufu, alkali aktivatör olarak ise sodyum silikat ile sodyum hidroksit kullanılmıştır. Çalışmada 20 ve 40 oranlarında bağlayıcı malzeme yerine kullanılan pomza P ile üretilmiş numunelerin 7., 28., ve 56. günlerde basınç ve eğilme dayanımları, ultrasonik ses geçiş hızları irdelenmiştir. Ayrıca farklı sodyum hidroksit molaritelerinin 8M, 12M ve 16M mekanik dayanımına olan etkisi araştırılmıştır. Sonuçlara göre, pomza oranı arttıkça basınç dayanımının azaldığı, sodyum hidroksit molaritesi arttıkça da basınç dayanımının arttığı bulunmuştur. 56. günde en yüksek dayanım değerleri P0-16M numunelerinde 61.62 MPa bulunurken, en düşük dayanımsa P40-8M numunelerinde 44.14 MPa bulunmuştur. Bağlayıcı olarak cüruf ve uçucu kül yerine 40 oranlarına kadar bazaltik pomza kullanılarak üretilen geopolimer numuneler, mevcut standartlarda belirtilen yapıların inşasında kullanılabilecek minimum C2530 beton basınç dayanımı sınıfını sağlamaktadır.

Makale detayları

The Influence of Using Basaltic Pumice Powder as a Binder on the Mechanical Strength of Geopolymer Mortars

Yazarlar:

Taha Salah Wahhab Al-antaki | Anıl Niş

Yayıncı:

Cukurova University

Ana Başlıklar:

Yapı Malzemeleri

Dergi:

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi Vol.40 Issue 3, pp.687-697

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

Türkçe

Document ID (Org No.):

2001358988

pISSN:

2757-9255

Basaltic pumice

Geopolymer

Compressive strength

Flexural strength

Ultrasonic pulse velocity (UPV)Bazaltik pomza

Geopolimer

Basınç dayanımı

Eğilme dayanımı

Ultrasonik ses geçiş hızı (UPV)

Sayı

Makale detayları

Yazarlar: Taha Salah Wahhab Al-antaki | Anıl Niş

Yayıncı: Cukurova University

Ana Başlıklar: Yapı Malzemeleri

Dergi: Çukurova Üniversitesi Mühendislik Fakültesi Dergisi Vol.40 Issue 3, pp.687-697

Belge Tipi: Makale

Yayın Tarihi: 9/2025

Belge Dili: Türkçe

Document ID (Org No.): 2001358988

pISSN: 2757-9255

Sayı

Yazarlar:

Taha Salah Wahhab Al-antaki | Anıl Niş

Yayıncı:

Cukurova University

Ana Başlıklar:

Yapı Malzemeleri

Dergi:

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi Vol.40 Issue 3, pp.687-697

Belge Tipi:

Makale

Yayın Tarihi:

9/2025

Belge Dili:

Türkçe

Document ID (Org No.):

2001358988

pISSN:

2757-9255