Investigation of Uniaxial Compressive Strength Values of A Polyvinyl Resin Reinforced Silt: An Experimental Study on Resin Amount and Curing Temperature

Abstract

In this study, silt type soil specimens were prepared by using polyvinyl acetate (PVA) resin type thermoset polymer binder. Before the specimen preparation, the soil was classified by sieving and determined to be ML coded inorganic silt according to the Atterberg limit tests. The soil specimen was taken from the Giresun city and the PVA resin was mixed with different amounts of 7% and 14% by weight. The uniaxial compressive strength (UCS) values of the specimens were determined to investigate the effect of varying PVA amounts in the mix. Additionally, different curing temperatures (5°, 25°, 50°) were investigated to assess whether the temperature is an important factor for the performance of the PVA binder. According to the results obtained from this study, specimens with 7% and 14% PVA resin had mean UCS values of 0.9 MPa and 1.6 MPa, respectively. For the investigated interval, UCS values were evaluated to increase up to 59% with increasing curing temperature values. The PVA type polymer resin was assessed to be an advantageous soil binder for various applications.

Keywords

• Polymeric binders
• polyvinyl resin
• polyvinyl acetate
• PVA
• ground improvement

Polivinil Reçine Bağlayıcı ile İyileştirilen Silt Türü Bir Zeminin Dayanım Değerlerinin İncelenmesi: Bağlayıcı Miktarı ve Kür Sıcaklığı Etkisi Üzerine Deneysel Bir Çalışma

Öz

Bu çalışmada polivinil asetat (PVA) reçine türü termoset polimer bağlayıcı kullanılarak silt türü zemin numuneleri oluşturulmuştur. Numune hazırlamadan önce elenerek sınıflandırılmış ve testlerde zemin sınıfı ML kodlu inorganik silt olarak belirlenen numune kullanılmıştır. Giresun ili merkez ilçesine ait silt numunesi farklı oranlarda (kütlece %7 ve %14) polivinil reçine ile karıştırılarak kalıplanmış ve tek eksenli basınç dayanımı değerleri belirlenmiştir. Elde edilen sonuçlara göre polivinil reçine bağlayıcı miktarı artışı ile dayanım değerleri de artmıştır. %7 ve %14 polivinil reçine içeren numunelerin dayanımları oda sıcaklığı kür koşullarında ortalama sırasıyla 0,9 MPa ve 1,6 MPa olarak belirlenmiştir. Ayrıca, farklı kür sıcaklıklarının (5°, 25°, 50°) polimerleşme üzerindeki etkileri incelenmiş ve sıcaklık artışı ile dayanım değerlerinde iyileşme olduğu belirlenmiştir. İncelenen değerler aralığında kür sıcaklığına bağlı olarak dayanımın %59 oranına kadar artış gösterdiği ölçülmüştür. PVA farklı uygulamalarda avantaj sağlayabilecek bir zemin bağlayıcısı olarak değerlendirilmiştir.

Anahtar Kelimeler

• Polimer bağlayıcılar
• Polivinil reçine
• Polivinil asetat
• PVA
• Zemin iyileştirme

Kaynakça

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