YÜZEY KORUYUCU REÇİNENİN KAPİLER SU EMME ÖZELLİĞİ ÜZERİNE ETKİSİ : NEVŞEHİR İGNİMBİRİTİ ÖRNEĞİ

Abstract

Doğal taşların su emme özelliklerinin yanı sıra kılcal su emme özellikleri de bozunma üzerinde oldukça etkilidir. Kılcal su emme derecesi, doğal taşların gözenek boyutu ve gözeneklerin birbirleriyle bağlantısıyla doğrudan ilişkilidir. Bu çalışmada, Nevşehir ilinde bulunan sarı (SR), bej (BJ) ve gülkurusu (GK) olmak üzere üç farklı renk ve dokuya sahip ignimbirit kullanılmıştır. İlk olarak, örneklerin kapiler su emme katsayıları su ve MgSO4 çözeltisi içerisinde belirlenmiştir. Daha sonra, ignimbiritlere yüzey kaplama malzemesi uygulanmış ve aynı koşullarda kapiler su emme katsayıları tekrar belirlenmiştir. İgnimbiritlerin malzeme özelliklerini belirlemek için kimyasal, mineralojik-petrografik analizler ve fizikomekanik deneyler yapılmıştır. Çalışma neticesinde SR ignimbiritinin su içerisinde kılcal su emme kapasitesi 114,03 g/m2s0,5, magnezyum sülfat çözeltisi içerisinde 101 g/m2s0,5 olarak tespit edilmiştir. BJ ignimbiritlerinin su içindeki kılcal su emme potansiyeli 115,71 g/m2s0,5 olarak belirlenirken, MgSO4 içeren çözeltide 112,16g/m2s0,5 olarak belirlenmiştir. İgnimbiritlere yüzey kaplama reçinesi uygulandıktan sonra, SR ignimbiritinin su içerisinde kılcal su emme kapasitesi 6,54 g/m2s0,5 ve MgSO4 çözeltisi içerisinde 0,07 g/m2s0,5 olarak belirlenmiştir. BJ ignimbiriti için su içinde kılcal su emme kapasitesi 0,08 g/m2s0,5 ve MgSO4 çözeltisi içerisinde 1,27 g/m2s0,5 olarak tespit edilmiştir. Benzer şekilde, GK ignimbiriti için su içinde kılcal su emme kapasitesi 0,08 g/m2s0,5 ve MgSO4 çözeltisi içerisinde 0,79 g/m2s0,5 olarak ölçülmüştür. Yüzeyleri koruyucu kimyasal ile kaplanan ignimbirit örneklerinde kılcal su emme özelliklerinin önemli ölçüde azaldığı tespit edilmiştir.

Keywords

• İgnimbirit
• Kılcal su emme
• Yüzey kaplama reçinesi
• Kapadokya.

Investigation of the Effect of Surface Protective Resin on the Capillary Water Absorption Properties of Ignimbrites: A Case Study of Nevşehir Ignimbrite

Abstract

In this study, three different colors and textures of ignimbrite, namely yellow (SR), beige (BJ), and pinkish-grey (GK), were utilized in Nevşehir province. Initially, the capillary water absorption coefficients of the samples were determined in water and MgSO4 solution. Subsequently, a surface coating material was applied to the ignimbrites, and under the same conditions, the capillary water absorption coefficients were reassessed. Chemical, mineralogical-petrographic analyses, and physico-mechanical experiments were conducted to determine the material properties of the ignimbrites. As a result of the study, the capillary water absorption capacity of SR ignimbrite was determined to be 114.03 g/m2s0,5 in water and 101 g/m2s0,5 in magnesium sulfate solution. While the capillary water absorption potential of BJ ignimbrites in water was determined as 115.71 g/m2s0,5, it was found to be 112.16 g/m2s0,5 in the solution containing MgSO4. After the application of surface coating resin to the ignimbrites, the capillary water absorption capacity of SR ignimbrite was determined as 6.54 g/m2s0,5 in water and 0.07 g/m2s0,5 in MgSO4 solution. The capillary water absorption capacity for BJ ignimbrite was determined as 0.08 g/m2s0,5 in water and 1.27g/m2s0,5 in MgSO4 solution. Similarly, for GK ignimbrite, the capillary water absorption capacity was measured as 0.08 g/m2s0,5 in water and 0.79 g/m2s0,5 in MgSO4 solution. It was observed that the capillary water absorption properties were significantly reduced in the ignimbrite samples coated with the protective chemical.

Keywords

• Ignimbrite
• Capillary water absorption
• Surface coating resin
• Cappadocia.

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