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Micro Structure Effect of Concrete Degradation for Compressive Strength of Concrete B - TAFATNEB - 06-03-2014 Micro Structure Effect of Concrete Degradation for Compressive Strength of Concrete Burned in High Temperature Author: Setyowati E W , Soehardjono A , Zacoeb A , Fuad A , Mufti N | Size: 767 KB | Format: PDF | Quality: Unspecified | Publisher: International Journal of Emerging Technology and Advanced Engineering | Year: 2012 | pages: 06
Abstract- It is generally recognized that the environmental degradation of the concrete infrastructure is a serious, large scale and costly problem in many parts of the world. This study discussed about the power of concrete structure especially the comparison of the compressive strength of concrete due to higher temperature of fire with the micro structure of concrete degradation . The methodology consisted of experiment using the concrete samples that was carried out by trial kinds temperature of 400°C, 600°C, and 800°C with factor of cement water was steady in 28 days and then carried out process at the burner wich burned . The study highlights thecapabilities of the methods for the analysis of concrete towards the determination of hardenedcement paste degradation. The methods ascertain that the samples XRD results showed small quantity of ettringite, calcium, carboaluminate hydrate , and a complete leach of portlandite fase and to be smaller than in high temperature and to be loos at 800 oC.The result for the SEM it will be degradation at micro structure of concrete, like the micro crack on material concrete at high temperature (800oC). The result compressive test for 80 samples of concrete is the compressive strength for the material concrete is become lower than in high temperature, up to70 % . Code: *************************************** |