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Study of concrete degradation in salt water

Kansso, Mahdi (2015). Study of concrete degradation in salt water. Bachelor of Engineering (4th Year Project) Thesis, Charles Darwin University.

Document type: Thesis
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Author Kansso, Mahdi
Title Study of concrete degradation in salt water
Institution Charles Darwin University
Publication Date 2015
Thesis Type Bachelor of Engineering (4th Year Project)
Abstract Industrial by-products such as Silica Fume (SF) can be utilized to enhance the strength of concrete. Silica Fume is non metallic and non hazardous waste of industries. It is appropriate for concrete mix and improves properties of concrete such as compressive strength etc. The utilization of these industrial by-products is becoming popular throughout the world because of the minimization of their potential hazardous effects on environment. This paper investigates the individual effects of Silica Fume as a partial replacement of Ordinary Portland Cement (OPC) on compressive strength of concrete. To investigate these properties of concrete, different samples of concrete with different percentages of Silica Fume were investigated by immersing specimens in natural sea water for periods up to 4 months. Immersed test specimens underwent uniaxial compressive test to ascertain concrete’s structural integrity. The replacement levels of OPC by Silica Fume were 0%, 10%, 20% and 30%.

Water-cement ratio was kept 0.4 for all cases and the specimens were tested at ages 28 and 120 days. The results indicated that when cement is replaced by Silica Fume compressive strength increased up to certain percentage. But higher replacement of cement by Silica Fume gave lower strength. 10% Silica Fume was found to be optimum for maximum compressive strength.
Keyword By-Product
Silica Fume (SF)
Ordinary Portland Cement (OPC)
Compressive Strength
Water-Cement Ratio
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Created: Fri, 31 Jul 2015, 13:53:12 CST by Jessie Ng