Water is one of the important factors of deterioration due to wetting-drying, freezing-thawing
and salt crystallization in natural stones. Water enters into natural building stones in different ways. In
addition to water absorption, the capillary water absorption mechanism is of great importance in these
deteriorations. The amount of capillary water absorption depends on the pore size distribution of the
natural building stones. In this study, the effect of surface protection resin on the capillary water
absorption potential of İscehisar andesite and Döğer tuffs in Afyonkarahisar region was investigated. For
this purpose, chemical, petrographic-mineralogical (polarizing microscope, XRD), pore size distribution
and physico-mechanical properties of the building stones used in the experiments have been determined.
In the second stage, experimental studies were carried out to determine the capillary water absorption
properties in sodium sulfate (Na2SO4 10H2O) and sodium chloride (NaCl) solution water. The same
experiments were repeated on treated samples with water-repellent chemicals. As a result of these studies, water adsorption potential was found of the tested samples the values of 14.70 kg/m2
s
0.5 in normal water,
15.26 kg/m2
s
0.5 in sodium sulphate solution and 15.68 kg/m2
s
0.5 in sodium chloride solution, the capillary
water absorption potential of andesites was 1.75, 3.04 and 2.77 kg/m2
s
0.5. The same values were
significantly reduced and measured below 1 kg/m2
s
0.5 which the samples of the treated by surface
protective resin.
Döğer tuff İscehisar andesite natural building stones salt crystallization surface protection resin
Doğal taşlarda ıslanma-kuruma, donma-çözülme ve tuz kristallenmesine bağlı ayrışmanın önemli
faktörlerinden birisi sudur. Su, değişik yollarla doğal yapı taşları bünyesine nüfuz etmektedir.
Absorbsiyonun yanı sıra kılcal su emme mekanizması bu ayrışmalarda büyük önem taşımaktadır. Kılcal
su emme miktarı, doğal yapı taşlarının gözeneklilik boyut dağılımına bağlıdır. Bu çalışmada,
Afyonkarahisar yöresinde doğal yapı taşı olarak kullanılan Döğer tüfü ve İscehisar andezitinin, değişik
tuzlu ortamlarda kılcal su emme potansiyeline yüzey koruyucu reçine etkisi incelenmiştir. Bu amaçla
önce deneylerde kullanılan yapı taşlarının malzeme karakterizasyonu yapılarak, kimyasal, petrografikmineralojik (polarizan mikroskop, XRD), gözenek çapı dağılımı ve fiziko-mekanik özellikleri
belirlenmiştir. İkinci aşamada ise sodyum sülfat (Na2SO4 10H2O) ve sodyum klorür (NaCl) sulu
çözeltilerinden kılcal su emme özelliklerini belirlemek amacıyla deneysel çalışmalar yapılmıştır. Aynı
deneyler yüzey koruyucu reçine sürülmüş örnekler üzerinde de tekrarlanmıştır. Bu çalışmalar sonucunda
Döğer tüflerinin kılcal su emme potansiyeli saf suda 14,70 kg/m2
s
0.5, sodyum sülfatlı çözeltide 15,26
kg/m2
s
0.5 ve sodyum klorürlü sulu çözeltide 15,68 kg/m2
s
0.5, andezitlerin kılcal su emme potansiyeli
sırasıyla 1,75; 3,04 ve 2,77 kg/m2
s
0.5 olarak bulunmuştur. Yüzey koruyucu reçine sürülmüş örneklerde
aynı değerler önemli ölçüde azalarak 1 kg/m2
s
0.5 değerinin altında ölçülmüştür.
Primary Language | Turkish |
---|---|
Subjects | Engineering |
Journal Section | Research Articles |
Authors | |
Publication Date | December 31, 2019 |
Submission Date | October 30, 2018 |
Acceptance Date | November 18, 2019 |
Published in Issue | Year 2019 Volume: 24 Issue: 3 |
Announcements:
30.03.2021-Beginning with our April 2021 (26/1) issue, in accordance with the new criteria of TR-Dizin, the Declaration of Conflict of Interest and the Declaration of Author Contribution forms fulfilled and signed by all authors are required as well as the Copyright form during the initial submission of the manuscript. Furthermore two new sections, i.e. ‘Conflict of Interest’ and ‘Author Contribution’, should be added to the manuscript. Links of those forms that should be submitted with the initial manuscript can be found in our 'Author Guidelines' and 'Submission Procedure' pages. The manuscript template is also updated. For articles reviewed and accepted for publication in our 2021 and ongoing issues and for articles currently under review process, those forms should also be fulfilled, signed and uploaded to the system by authors.