THE INVESTIGATION OF THE USE OF SAVSAT TRASS ON THE PRODUCTION OF CONCRETE

Abstract

In this study, it was investigated the effect of the use of natural puzzolans such as Savsat and Yalova trass at specific ratios on the performance of concrete. Yalova and Savsat puzzolans were replaced with CEMI and CEMIII cements at specific ratios in two dosages (300 and 400 dosages) and concretes were produced. Then, it was performed early and ultimate compressive strength tests and sulphate resistance tests on the concretes. In sulphate resistance tests, YT and ST additive concrete were exposed to sodium and magnesium sulphate solutions with 10% concentrations throughout 180 days. After 180 days, it was determined strength and weihgt loss values. Test results indicated that Yalova trass performed better in compressive strength tests and Savsat trass performed better in sulphate resistance tests. Furthermore, CEMIII cement performed better than CEMI cement in sulphate resistance tests.

Keywords

• Concrete, Yalova trass, Savsat trass, Compressive strength, Sulphate resistance,

?AV?AT TRASININ BETON ÜRETYMYNDE KULLANILABYLYRLY?YNYN YNCELENMESY

Öz

Bu çaly?mada ?av?at trasy (?T) ve Yalova trasynyn (YT) iki farkly çimento ile de?i?ik oranlarda ikameli olarak kullanylmasynyn beton performansyna etkisi ara?tyrylmy?tyr. Bu amaçla ?av?at ve Yalova traslary de?i?ik ikame oranlarynda PÇ42.5 çimentosu ve cüruflu çimento (CÇ) ile iki farkly dozda (300 ve 400 doz) kullanylarak betonlar üretilmi?, bu betonlar üzerinde erken ve ileri ya? basynç dayanym deneyleri ile sülfat direnci deneyleri yapylmy?tyr. Sülfat direnci deneyleri kapsamynda ?T ve YT ikameli betonlar %10 konsantrasyonlu MgSO4 ve Na2SO4 çözeltilerine 180 gün boyunca maruz byrakylarak 180 gün sonundaki basynç dayanymy ve a?yrlyk kayby de?i?imleri incelenmi?tir. Deney sonuçlaryna gözönüne alyndy?ynda YT'nin basynç dayanymy deneylerinde ?T'nin ise sülfat direnci deneylerinde beton özellikleri üzerinde daha olumlu etkisinin oldu?u ve her iki sülfatly çözelti içerisinde de cüruflu çimento içeren betonlaryn PÇ42.5 çimentosu içeren betonlara göre daha iyi performans gösterdi?i görülmü?tür.

Anahtar Kelimeler

• Beton, Yalova trasy, ?av?at trasy, Basynç dayanymy, Sülfat direnci,