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Influence Of Waste Foundry Sand (WFS) And Rice Husk Ash (RHA) On The Mechanical Properties Of Polymer Concrete

Diğer Başlık: Atık Doküm Kumu Ve Çeltik Külünün Polimer Betonun Mekanik Özelliklerine Etkisi

Oluşturulma Tarihi: 02-11-2020

Niteleme Bilgileri

Tür: Tez

Alt Tür: Yüksek Lisans Tezi

Yayınlanma Durumu: Yayınlanmamış

Dosya Biçimi: PDF

Dil: İngilizce

Konu(lar): TEKNOLOJİ, Mühendislik (Genel). İnşaat mühendisliği (General),

Yazar(lar): Al-Ganad, Adnan Abdulghani Ali (Yazar),

Emeği Geçen(ler): Akış, Tolga (Tez Danışmanı), Şengönül, Cemal Merih (Tez Danışmanı),


Yayın Tarihi: 24-02-2020


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Anahtar Kelimeler

Polymer concrete, Epoxy, Waste foundry sand, Rice husk ash, Mechanical strength, Recycling


Özet

Polymer concrete (PC) is a composite which contains aggregate, filler, bound together with a thermoset resin instead of cement and water. It is used as a repairing material due to its high bonding capability and good mechanical properties. On the other hand, it is quite expensive compared to ordinary concrete. The aim of this study is to investigate the effect of waste materials such as waste foundry sand (WFS) and rice husk ash (RHA) on mechanical properties of PC. RHA is used as a filler, while epoxy is used as a binding material in this study. The tests were conducted according to ASTM standards, where the compressive strength, splitting tensile strength, and flexural strength of the PC specimens were determined with various weight proportions of WFS, epoxy, and RHA. Firstly, five types of mixtures without RHA were prepared to determine the optimum proportion of epoxy and WFS. Secondly, the optimum proportion of RHA was determined for the optimum epoxy/WFS composition. The effect of normal sand (NS) in PC as a control was explored. The weight percent epoxy/WFS ratios were prepared as 10/90, 20/80, 25/75, 30/70 and 40/60, while RHA was tested for 5, 10, and 15% additions by weight. Scanning Electron Microscopy (SEM) was used to monitor the spatial distribution as well as adhesion between PC components. X-ray fluorescence (XRF) technique was performed to determine the chemical compositions of WFS and NS. Finally, Fourier Transform Infrared Spectroscopy (ATR-FTIR) was used in order to point out the chemical differences between WFS and NS. It was found that the average compressive strength, splitting tensile strength, and flexural strength values were all increased to their maximum for 25/75 epoxy/WFS ratio. On the other hand, the mechanical properties have been noticeably improved with 10% (by weight) RHA addition. Furthermore, using WFS as aggregate leads to better results in both compressive strength and flexural strength values compared to NS.



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