Yapı Taşı Olarak Kullanılan Volkanik Kayaçların Kılcal Su Emme Kapasitesine Sıcaklık ve Tuzlu Suyun Etkisi

Abstract

Doğal yapı taşlarının ana bozulma faktörlerinden biri, malzemeye giren sıvıların varlığıdır. Yapı taşlarına sıvı girişinin en yaygın mekanizması kılcal su emilimidir. Yapı taşlarının bozulması için önemli bir higrotermal malzeme özelliği olan kılcal su emme kapasitesinin bilinmesi gerekmektedir. Bu amaçla Ayazini tüfü ve İscehisar andezitinde 5 farklı su sıcaklığının (22, 30, 40, 50 ve 60 oC) hem suda hem de tuzlu (NaCl) sudaki etkileri incelenmiştir. 2880 dakika sonunda 22 oC'de Ayazini tüfü tuzlu suda suya göre %10.47, 30 oC'de %6.46 daha fazla kılcal su emmiştir. Su sıcaklığı 40 oC'ye yükseldiğinde kılcal suyu %7,18, 50 oC'de %3,22 ve 60 oC'de %3,86 oranında emdiği hesaplanmıştır. İscehisar andezitinde 2880 dakika sonunda tuzlu su 22 oC'de %36,70, 30 oC'de ise %57,21 daha fazla kılcal su emmiştir. 40 oC'de %27,42, 50 oC'de %20,84 ve 60 oC'de %10,85 kapiler su emmiştir. Tuzlu su emme oranı açısından ise su sıcaklığının 50 ve 60 oC'ye çıkması halinde su emme miktarının azaldığı tespit edilmiştir.

Keywords

• Kılcal su emme
• Sıcaklık
• Andezit
• Tüf
• Yapı taşları

The Effect of Temperature and Salty Water on the Capillary Water Absorption Capacity of Volcanic Rocks Used as Building Stones

Abstract

One of the main deterioration factors of natural building stones is the presence of liquids entering the material. The most common mechanism of liquid ingress into building stones is capillary water absorption. It is necessary to know the capillary water absorption capacity, an important hygrothermal material feature for the deterioration of building stones. For this purpose, the effects of 5 different water temperatures (22, 30, 40, 50, and 60 oC) in both water and salty (NaCl) water in Ayazini tuff and İscehisar andesite were investigated. At the end of 2880 min, at 22 oC, Ayazini tuff absorbed 10.47% more capillary water in salty water than in water and 6.46% more capillary water at 30 oC. It was calculated that when the water temperature rises to 40 oC, it absorbs capillary water at 7.18%, 3.22% at 50 oC, and 3.86% at 60 oC. In the İscehisar andesite at the end of 2880 min, salty water absorbed 36.70% more capillary water at 22 oC and 57.21% more at 30 oC than water. It absorbed capillary water 27.42% at 40 oC, 20.84% at 50 oC, and 10.85% at 60 oC. In terms of salty water absorption rate, it has been determined that the water absorption amount decreases if the water temperature rises to 50 and 60 oC.

Keywords

• Capillary water absorption
• Temperature
• Andesite
• Tuff
• Building stones

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