Thermal and Mechanical Properties of Lightweight Foam Paste Plates with Zeolite Blended Cements

Öz

Foamed cementitious materials are increasingly preferred in energy-efficient building designs. The preferred designs involve multifaceted targets such as sustainability, carbon emission and energy efficiency. According to these, the thermal and mechanical performances of lightweight foam paste plates (LFPPs) with zeolite blended cements were investigated. For blended cements, two different zeolites were used as cement replacement materials at 0, 10, 30, and 50%. In mixtures, foaming agent/water and water/cement were fixed as 1:30 and 0.40, respectively. Foam was achieved with a foaming agent obtained from hydrolysis of animal proteins. The LFFPs were produced by adding foam component into fresh slurry obtained with water and blended cement. The physical, mechanical, thermal properties and microstructural analysis of LFPPs were determined. Thermal performance tests were carried out using the hot wire method. Microstructural analyses revealed that the inherently porous structure of zeolite increased the total void volume within the cement matrix, thereby leading to a reduction in strength. The compressive strengths of LFPPs were 1.52-1.90 MPa. Accordingly, thermal insulations of LFPPs containing zeolite blended cements improved up to 45.40%. The highest specific heat within series containing zeolites was in series with 10% analcime. Moreover, thermal improvements were obtained without compromising strength in standard limit.

Anahtar Kelimeler

• zeolite
• lightweight foam paste plate (LFPP)
• thermal insulation
• heat storage

Destekleyen Kurum

Scientific Research Project Coordination Unit of Ordu University

Proje Numarası

D-2101

Etik Beyan

There are no ethical issues regarding the publication of this article.

Teşekkür

This study was funded by the Scientific Research Project Coordination Unit of Ordu University under Project No: D-2101. The author would like to thanks to Laboratories of Dicle University, Laboratories of General Directorate of Mineral Research and Explorations and Gördes Zeolite, Altaş Ready-Mixed Concrete companies.

Zeolit Katkılı Çimentolu Hafif Köpük Hamur Plakaların Termal ve Mekanik Özellikleri

Öz

Enerji verimli bina tasarımlarında köpük çimento esaslı malzemeler giderek daha fazla tercih edilmektedir. Tercih edilen tasarımlar, sürdürülebilirlik, karbon emisyonu ve enerji verimliliği gibi çok yönlü hedefleri içermektedir. Buna göre, zeolit katkılı çimentolarla üretilen hafif köpük macun plakalarının (LFPP) termal ve mekanik performansları araştırılmıştır. Katkılı çimentolar için, %0, %10, %30 ve %50 oranlarında çimento yerine iki farklı zeolit kullanılmıştır. Karışımlarda, köpürtücü madde/su ve su/çimento oranları sırasıyla 1:30 ve 0,40 olarak sabitlenmiştir. Köpük, hayvansal proteinlerin hidrolizinden elde edilen bir köpürtücü madde ile elde edilmiştir. LFPP'ler, su ve katkılı çimento ile elde edilen taze bulamaca köpük bileşeni eklenerek üretilmiştir. LFPP'lerin fiziksel, mekanik, termal özellikleri ve mikro yapısal analizleri belirlenmiştir. Termal performans testleri sıcak tel yöntemi kullanılarak gerçekleştirilmiştir. Mikro yapısal analizler, zeolitin doğal olarak gözenekli yapısının çimento matrisi içindeki toplam boşluk hacmini artırdığını ve bunun da mukavemette azalmaya yol açtığını ortaya koymuştur. LFPP'lerin basınç dayanımları 1,52-1,90 MPa arasındaydı. Buna göre, zeolit katkılı çimentolar içeren LFPP'lerin ısı yalıtımı %45,40'a kadar iyileşti. Zeolit içeren seriler arasında en yüksek özgül ısı, %10 analcim içeren seride elde edildi. Dahası, standart sınırlar içinde dayanımı tehlikeye atmadan ısı yalıtımında iyileşmeler sağlandı.

Anahtar Kelimeler

• zeolit
• hafif köpük hamur plaka (LFPP)
• ısı yalıtımı
• ısı depolama

Destekleyen Kurum

Ordu Üniversitesi Bilimsel Araştırma Proje Koordinasyon Birimi

Proje Numarası

D-2101

Etik Beyan

Bu makalenin yayınlanmasıyla ilgili herhangi bir etik sorun bulunmamaktadır.

Teşekkür

Bu çalışma, Ordu Üniversitesi Bilimsel Araştırma Proje Koordinasyon Birimi tarafından D-2101 numaralı proje kapsamında finanse edilmiştir. Yazar, Dicle Üniversitesi Laboratuvarları, Maden Araştırma ve Arama Genel Müdürlüğü Laboratuvarları ve Gördes Zeolit, Altaş Hazır Beton şirketlerine teşekkürlerini sunar.

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