COMPARISON OF SOME DURABILITY PROPERTIES OF GEOPOLYMER MORTARS PRODUCED WITH DIFFERENT CURING METHODS WITH CEMENT MORTARS

Adil Gültekin; Kambiz Ramyar

Makale detayları

COMPARISON OF SOME DURABILITY PROPERTIES OF GEOPOLYMER MORTARS PRODUCED WITH DIFFERENT CURING METHODS WITH CEMENT MORTARS

Yazarlar:

Adil Gültekin | Kambiz Ramyar

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

Yapı Malzemeleri

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.12 Issue 4, pp.821-834

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001334900

pISSN:

1308-6693

Anahtar kelimeler:

Özet:

 In this study, some durability properties of microwave-cured fly ash-, pumice-, perlite-, and burnt clay-based geopolymer mortars were investigated comparatively with those of the conventional oven-cured geopolymer mortars. In this context, alkali-silica reaction, sorptivity and abrasion resistance tests were carried out, and the microstructures of the pastes were examined using scanning electron microscope to investigate the relationship between durability and microstructure. In order to compare the durability properties of geopolymer mortars, portland cement mortars with similar compressive strength were produced. Results indicated that geopolymer mortars exhibit no expansion due to alkali-silica reaction, while their abrasion resistance was comparable to that of the cement mortars. The sorptivity test and scanning electron microscope examinations revealed that the type of aluminosilicate and curing method influence the capillary water absorption rate. Pumice-, perlite-, and burnt clay-based geopolymer mortars demonstrated rapid water sorptivity. The fact was attributed to the presence of considerable amount of pores in the microstructure, as provided by electron microscope images.

 In this study, some durability properties of microwave-cured fly ash-, pumice-, perlite-, and burnt clay-based geopolymer mortars were investigated comparatively with those of the conventional oven-cured geopolymer mortars. In this context, alkali-silica reaction, sorptivity and abrasion resistance tests were carried out, and the microstructures of the pastes were examined using scanning electron microscope to investigate the relationship between durability and microstructure. In order to compare the durability properties of geopolymer mortars, portland cement mortars with similar compressive strength were produced. Results indicated that geopolymer mortars exhibit no expansion due to alkali-silica reaction, while their abrasion resistance was comparable to that of the cement mortars. The sorptivity test and scanning electron microscope examinations revealed that the type of aluminosilicate and curing method influence the capillary water absorption rate. Pumice-, perlite-, and burnt clay-based geopolymer mortars demonstrated rapid water sorptivity. The fact was attributed to the presence of considerable amount of pores in the microstructure, as provided by electron microscope images.

 In this study, some durability properties of microwave-cured fly ash-, pumice-, perlite-, and burnt clay-based geopolymer mortars were investigated comparatively with those of the conventional oven-cured geopolymer mortars. In this context, alkali-silica reaction, sorptivity and abrasion resistance tests were carried out, and the microstructures of the pastes were examined using scanning electron microscope to investigate the relationship between durability and microstructure. In order to compare the durability properties of geopolymer mortars, portland cement mortars with similar compressive strength were produced. Results indicated that geopolymer mortars exhibit no expansion due to alkali-silica reaction, while their abrasion resistance was comparable to that of the cement mortars. The sorptivity test and scanning electron microscope examinations revealed that the type of aluminosilicate and curing method influence the capillary water absorption rate. Pumice-, perlite-, and burnt clay-based geopolymer mortars demonstrated rapid water sorptivity. The fact was attributed to the presence of considerable amount of pores in the microstructure, as provided by electron microscope images.

 Bu çalışmada, mikrodalga kürü ile üretilen uçucu kül, pomza, perlit ve pişirilmiş kil esaslı geopolimer harçların bazı durabilite özellikleri incelenmiş ve elde edilen sonuçlar geleneksel etüv kürü ile üretilen serilerle kıyaslanmıştır. Bu kapsamda alkali-silis reaksiyonu direnci, kılcal su emme hızı, aşınma direnci deneyleri yapılmış, ayrıca hamur mikro yapıları taramalı elektron mikroskobu ile incelenerek durabilite-içyapı ilişkisi irdelenmiştir. Geopolimer harçların durabilite özelliklerinin karşılaştırılması amacıyla, incelenen harca benzer basınç dayanımına sahip portland çimentolu harçlar üretilmiş ve iki sistemin durabilite konusundaki avantaj ve dezavantajları araştırılmıştır. Geopolimer harçlarda alkali-silis reaksiyonundan kaynaklanan bir genleşme yaşanmadığı ve geopolimer harçların aşınma dirençlerinin, çimento harçları ile kıyaslanabilecek seviyelerde olduğu tespit edilmiştir. Kılcallık deneyi ve taramalı elektron mikroskobu incelemelerinde elde edilen bulgular, alüminosilikat tipi ve kür yönteminin kılcal su emme hızı üzerinde etkili olduğunu; pomza, perlit ve pişirilmiş kil esaslı geopolimer harçların kılcal yolla hızlı bir şekilde su emebildiklerini, bunun da boşluklu mikro yapıdan kaynaklandığını göstermiştir.

Makale detayları

COMPARISON OF SOME DURABILITY PROPERTIES OF GEOPOLYMER MORTARS PRODUCED WITH DIFFERENT CURING METHODS WITH CEMENT MORTARS

Yazarlar:

Adil Gültekin | Kambiz Ramyar

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

Yapı Malzemeleri

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.12 Issue 4, pp.821-834

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001334900

pISSN:

1308-6693

Geopolymer Mortar

Microwave Curing

Alkali-silica Reaction

Abrasion Resistance

SorptivityGeopolimer Harç

Mikrodalga Kürü

Alkali-silis Reaksiyonu

Aşınma Direnci

Kılcallık

Sayı

Makale detayları

Yazarlar: Adil Gültekin | Kambiz Ramyar

Yayıncı: Süleyman Demirel University

Ana Başlıklar: Yapı Malzemeleri

Dergi: Mühendislik Bilimleri ve Tasarım Dergisi Vol.12 Issue 4, pp.821-834

Belge Tipi: Makale

Yayın Tarihi: 12/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001334900

pISSN: 1308-6693

Sayı

Yazarlar:

Adil Gültekin | Kambiz Ramyar

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

Yapı Malzemeleri

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.12 Issue 4, pp.821-834

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001334900

pISSN:

1308-6693