Reuse of Aerated Autoclaved Concrete Waste as a New Material in Shallow Soil Stabilization

Abstract

Nowadays, the autoclaved aerated concrete (AAC) is one of the most widely used construction materials. Hence, there will be a huge amount of AAC waste in the near future. In this research, an experimental research study within the scope of investigating the potential use of autoclaved aerated concrete (AAC) waste in the shallow soil stabilization was presented. Three types of subgrades that are a high plasticity bentonite clay (CH), a low plasticity clay (CL) and a sand (SP) were used with the pulverized autoclaved aerated concrete waste (PAACW). It was found that PAACW additive increased the unconfined compression strength and CBR of the clay soils and the internal friction angle of the sand. Also, addition of PAACW significantly decreased the swelling potential and swelling pressure of CH.

Keywords

• Soil improvement,demolition waste,autoclaved aerated concrete,clay,sand

Yüzeysel Zemin İyileştirmesinde Yeni Bir Malzeme Olarak Atık Gazbeton Kullanımı

Abstract

Günümüzde yaygın olarak kullanılan yapı malzemelerinden biri olan gazbetonun yakın gelecekte inşaat yıkıntı atıklarından biri olacağı açıktır. Bu araştırmada, atık gazbetonun zemin iyileştirmesinde kullanılabilirliği araştırılmıştır. Gazbeton malzemesi, öğütülerek kullanılmış ve farklı zemin tiplerine etkisini araştırmak amacı ile yüksek plastisiteli kil olarak bir bentonit (CH), bir düşük plastisiteli kil zemin (CL) ve bir kum zemin (SP) numuneleri ile karıştırılarak deneyler yapılmıştır. Öğütülmüş gazbeton atığı (ÖGA) katkısı ile kil zeminlerin serbest basınç mukavemeti ve CBR değerlerinin, kum zeminin ise kayma mukavemeti açısının arttığı belirlenmiştir. Ayrıca CH numunesinin şişme basıncı ve şişme yüzdesinde önemli derecede azalmalar tespit edilmiştir.

Keywords

• Zemin iyileştirme,yıkıntı atığı,gazbeton,kil,kum

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