Silindirle Sıkıştırılmış Betonlarda Su/Çimento Oranının Etkileri

Year 2021, Volume: 10 Issue: 1, 73 - 84, 10.06.2021

İsmail Kılıç , Saadet Gökçe Gök

Abstract

Deneysel çalışmada, C30/37 sınıfı silindirle sıkıştırılmış beton (SSB) tasarımı yapılmıştır. Karışımda, CEM I 42,5 R portland çimentosu, dört farklı boyutta agrega ve şebeke suyu kullanılmıştır. Su/çimento oranları 0,32, 0,35, 0,38 ve 0,41 olarak belirlenmiştir. Farklı su/çimento ile yapılan karışımlarda su miktarı sabit tutulmuş, çimento ve agrega miktarlarında değişiklik yapılmıştır. 7 ve 28 günlük basınç dayanımlarının tespiti için 15 cm çapında ve 30 cm yüksekliğinde silindir, 28 günlük eğilme dayanımları için 15 cm x 15 cm x 75 cm boyutlarında prizmatik kiriş, basınç altında su işleme derinliği ve aşınma için ise 15 cm x 15 cm x 15 cm küp SSB örnekleri üretilmiştir. Elde edilen veriler sonucunda, silindirle sıkıştırılmış betonlarda su/çimento oranının, basınç dayanımı, eğilme dayanımı, basınç altında su işleme derinliği ve aşınma gibi betonun özelliklerine etkileri belirlenmiştir.

Keywords

Silindirle sıkıştırılmış beton, Beton yol, Basınç altında su işleme derinliği, Aşınma

The Effects of Water/Cement Ratio on Properties of Roller Compacted Concretes

Abstract

In the experimental study, roller compacted concrete (RCC) with concrete class of C 30/37 was designed. CEM I 42.5 R Portland cement, four different sizes of aggregate and tap water were used in the mixtures. Water/cement ratios were determined as 0.32, 0.35, 0.38 and 0.41. The water amount was kept constant where the cement and aggregate amounts were changed in concretes having different water/cement ratios. Cylindrical specimens with a diameter of 15 cm and a height of 30 cm were produced for the determination of the compressive strengths at the ages of 7 and 28 days. 15 cm × 15 cm × 75 cm sized prismatic beams were produced to determine the flexural strengths at the age of 28 days while 15 cm × 15 cm × 15 cm cubic RCC specimens were produced to determine the depth of water penetration under pressure and wear resistance. According to the results of the data obtained, the effects of water/cement ratio on properties of concrete were determined.

Keywords

Roller compacted concrete, Concrete road, Depth of water penetration under pressure, Wear

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