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Journals / Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi / 2022 / Cilt: 25 - Sayı: 4

A COMPARATIVE ANALYSIS ON THE PERFORMANCES OF DIFFERENT ORIGINATED TWO PUMICE IN PRODUCTION OF MASONRY BLOCKS: TOMARZA AND TATVAN SAMPLE

KÂGİR BLOK ÜRETİMİNDE FARKLI ORİJİNLİ İKİ POMZANIN PERFORMANSLARI ÜZERİNE KARŞILAŞTIRMALI BİR ANALİZ: TOMARZA VE TATVAN ÖRNEĞİ

Lütfullah GÜNDÜZ
Şevket Onur KALKAN
Pages
537–555
Publication Date
2022-12-03
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the results, the highest strength values in PAHB cube samples prepared with BT and KT aggregates were obtained as 2.27 and 3.18 MPa in mixtures with cement dosage of 240 kg/m3 and aggregate usage ratio of 30:30:40 and 30:50:20, respectively.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Pumice aggregate lightweight concretes (PAHB) were produced with fine, medium and coarse pumice aggregates as 0/4 mm, 4/8 mm and 8/12 mm.
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Key Findings & Data:Three different fine:medium:coarse aggregate ratios by weight, 30:50:20, 30:30:40 and 20:50:30 were used.
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Conclusion & Impact:According to the results, the highest strength values in PAHB cube samples prepared with BT and KT aggregates were obtained as 2.27 and 3.18 MPa in mixtures with cement dosage of 240 kg/m3 and aggregate usage ratio of 30:30:40 and 30:50:20, respectively.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Kâgir blok · pomza · hafif beton

Abstract

Pumice aggregate lightweight concretes (PAHB) were produced with fine, medium and coarse pumice aggregates as 0/4 mm, 4/8 mm and 8/12 mm. The pumice aggregates were obtained from two different pumice quarries, namely Bitlis-Tatvan(BT) and Kayseri-Tomarza(KT). Three different fine:medium:coarse aggregate ratios by weight, 30:50:20, 30:30:40 and 20:50:30 were used. Also, four different cement dosages of 130, 170, 200 and 240 kg/m3 were used. In the second stage, pumice aggregate masonry block (PAKB) was produced in full scale with the same mixing ratios used in the cube samples. According to the results, the highest strength values in PAHB cube samples prepared with BT and KT aggregates were obtained as 2.27 and 3.18 MPa in mixtures with cement dosage of 240 kg/m3 and aggregate usage ratio of 30:30:40 and 30:50:20, respectively. As the density of concrete increased, the drying shrinkage and moisture expansion increased, but decreased with the increase of the aggregate/cement ratio. The lowest thermal conductivity coefficient in masonry blocks was found as 0.120 W/mK in BT aggregate block samples.

Özet

Bu çalışmada, ince, orta ve iri boyut pomza agrega olarak 0/4 mm, 4/8 mm 8/12 mm ebatlarda pomza agregalı hafif beton (PAHB) numuneleri üretilmiştir. Pomza agregaları Bitlis-Tatvan (BT) ve Kayseri-Tomarza (KT) olmak üzere iki farklı pomza ocağından elde edilmiştir. PAHB tasarımlarında ağırlıkça 30:50:20, 30:30:40 ve 20:50:30 olarak üç ince:orta:iri agrega oranı kullanılmıştır. Her bir grup için karışımda sırasıyla 130, 170, 200 ve 240 kg/m3 dozajlarında çimento kullanılmıştır. Çalışmanın ikinci aşamasında, pomza agregalı kagir blok (PAKB), deneme küp numunelerinde kullanılan karışım oranları ile aynı şekilde tam ölçekli olarak üretilmiştir. Çalışma sonuçlarına göre, BT ve KT agregası ile hazırlanmış PAHB küp örneklerinde en yüksek dayanım değerleri 2.27 ve 3.18 MPa ile 240 kg/m3 çimento dozajına ve sırasıyla, 30:30:40 ve 30:50:20 agrega kullanım oranına sahip karışımlarda elde edilmiştir. Betonun yoğunluk seviyesi arttıkça kuruma büzülmesinin ve rutubet genleşmesinin arttığı ancak, agrega/çimento oranının artması ile azaldığı gözlemlenmiştir. Kagir bloklarda en düşük ısı iletkenlik katsayısına 0.120 W/mK ile BT pomza agregalı blok numunelerinde tespit edilmiştir.

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Cite This Article

GÜNDÜZ, L., KALKAN, Ş. O. (2022). A COMPARATIVE ANALYSIS ON THE PERFORMANCES OF DIFFERENT ORIGINATED TWO PUMICE IN PRODUCTION OF MASONRY BLOCKS: TOMARZA AND TATVAN SAMPLE. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 25 - Sayı: 4, 537–555. https://ajindex.com/articles/876430

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