Çalışmada yüksek puzolanik özelliğe sahip olan diyatomitin, hafif beton blok üretiminde kullanılabilirliği araştırılmıştır. Çimento dozajı (220 kg/m3) ve su/çimento oranı (0,15) sabit olmak üzere, farklı tane dağılımlarına (granülometri) sahip agregalar kullanılarak üretilen 10x10x10 cm ebatlarındaki küp numunelerin, yüksek sıcaklık ve donma-çözülme etkisi sonrasında bazı fiziksel ve mekanik özelliklerindeki değişiklikler incelenmiştir. Deneysel çalışmalar için agregalar 0-4 mm (ince), 4-8 mm (orta) ve 8-16 mm (iri) tane dağılım oranına sahip 5 farklı seride üretilmiştir. 28 günlük sertleşmiş numuneler üzerinde birim hacim ağırlık, porozite, ultrases, basınç dayanımı ve elastisite modülü değerleri belirlenerek, yüksek sıcaklık ve donma-çözülme etkisi sonrasında numunelerde oluşan fiziksel değişimler kaydedilmiştir. Deney sonuçlarında, birim hacim ağırlık değerlerinin 1182,33-1273,37 kg/m3 arasında değişiklik gösterdiği, donma-çözülme sonrasında, ufalanma ve parçalanma ile ortalama %8,53 kütle azalışının yanı sıra, basınç dayanımında da azalış gözlenmiştir. Yüksek sıcaklık etkisi (600 oC) ile ortalama %7,9 kütle azalışı oluşurken, basınç mukavemetinde ise ortalama %55,22 oranında artış gözlenmiştir.
The study has studied the availability of diathomitin, which has a high puzolanic properties, in the production of light concrete blocks. Cement dosage (220 kg/m3) and water/cement ratio (0,15) are fixed, with the use of aggregates with different one-distribution (granulometry) of 10x10x10 cm cubic samples have been studied changes in some physical and mechanical characteristics after the high temperature and freezing-solving effect. For experimental studies, aggregates were produced in 5 different series with a single distribution rate of 0-4 mm (thin), 4-8 mm (medium) and 8-16 mm (thin). On 28 day hardened samples, the unit volume weight, porosity, ultrasound, pressure resistance and elasticity module values are determined, high temperature and freezing-solving effects recorded physical changes that occur in samples. In the test results, the unit volume weight values varied between 1182,33-1273,37 kg/m3 and, after freezing and dissolving, an average mass decrease of 8,53 % with decomposition and decomposition, as well as a decrease in pressure resistance. With the high temperature effect (600 oC) a mass decrease was observed by an average of 7.9%, while the pressure strength increased by an average of 55.22%.
In this study, the use of diatomite, which has a high pozzolanic property, in light concrete block production was investigated. After the high temperature and freeze-thaw effect of some 10x10x10 cm cube samples produced using aggregates with different grain distributions (granulometry) with cement dosage (220 kg/m3) and water/cement ratio (0.15) constant. Changes in properties are examined. For experimental studies, aggregates were produced in 5 different series with 0-4 mm (fine), 4-8 mm (medium) and 8-16 mm (large) grain distribution ratio. Physical changes occurred in samples after high temperature and freeze-thaw effect were determined by determining unit volume weight, porosity, ultrasound, compressive strength and elasticity module values on 28 days of hardened samples. In the results of the experiment, it was observed that the unit volume weight values varied between 1182,33- 1273,37 kg/m3, after freezing-thawing, a decrease in compressive strength was observed along with an average 8.53% mass decrease with crumbling and breaking down. While an average mass decrease of 7.9% occurred with high temperature effect (600 oC), an average increase of 55.22% was observed in compressive strength.
Alan : Mühendislik
Dergi Türü : Ulusal
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