Current Developments in Ultra-Light Weight Concrete

Year 2023, Volume: 15 Issue: 2, 689 - 703, 14.07.2023

İlker Bekir Topçu , İsmail Hocaoğlu , İlkay Kara

https://doi.org/10.29137/umagd.1286178

Cited By: 1

Abstract

Concrete, one of today's most important building materials, has different special types. One of them is lightweight concrete (LC). With the studies carried out on lightweight concretes (LWC), the unit weights tried to be reduced, and ultra-light concretes (ULWC) were tested. While reducing unit weights, it is tried to improve properties such as compressive strength, sound absorption feature, thermal conductivity, and fire and frost resistance. Aggregates used in the production of ULWC undergo changes over time. Sustainable and nature-friendly ULWC works continue by evaluating waste materials. Using waste instead of using natural resources increases the interest and demand for ULWC. Thus, its economic, environmental, and sustainability draw attention. According to the types and dimensions of the aggregates used, ULWCs are not only used as heat and sound insulation materials in buildings but also aim to reduce the effects of earthquake forces by increasing the strength properties of the building and reducing its own load. In this study, the latest developments in ultra-light concrete are tried to be investigated by examining the literature sources. Comparisons are made between ULWC, and their advantages and disadvantages are evaluated.

Keywords

Ultra-light weight concrete, light weight aggregate, strength, sustainability, thermal conductivity

Ultra Hafif Betonda Güncel Gelişmeler

Abstract

Günümüzün en önemli yapı malzemelerinden biri olan betonun farklı özel çeşitleri bulunmaktadır. Bunlardan biride hafif betonlardır. Hafif betonlar (HB) üzerinde yapılan çalışmalarla birim ağırlıkları azaltılmakta ve üretilen betonlara ultra hafif beton denilmektedir (UHB). Birim ağırlıkları azaltılmaya çalışılırken basınç dayanımı, ses emme özelliği, ısıl iletkenlikleri, yangına ve dona dayanıklılıkları gibi özellikleri iyileştirilmeye çalışılmaktadır. Ultra hafif betonların (UHB) üretiminde kullanılan agregalarda zamanla değişime uğramaktadır. Atık malzemelerin değerlendirilerek sürdürülebilir ve doğa dostu UHB çalışmaları devam etmektedir. Doğal kaynakların kullanılması yerine atıkların değerlendirilerek kullanılması UHB’lere karşı ilginin ve talebin artmasını sağlamaktadır. Böylece UHB’lerin ekonomik, çevreci ve sürdürülebilirliği dikkat çekmektedir. Kullanılan agregaların türlerine ve boyutlarına göre UHB’ler sadece binalarda ısı ve ses yalıtım malzemesi olarak kullanılmasının yanı sıra dayanım özellikleri arttırılarak yapının kendi yükünü azaltarak deprem kuvvetlerinin etkilerini de azaltması amaçlanmaktadır. Bu çalışmada literatür kaynakları incelenerek UHB’lerle ilgili son gelişmeler incelenmiştir. UHB’ler arasında karşılaştırmalar yapılmakla birlikte avantaj ve dezavantajları değerlendirilmiştir.

Keywords

Ultra hafif beton, hafif agrega, dayanım, sürdürülebilirlik, ısıl iletkenlik

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