International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Open Access | Fully Refereed | Peer Reviewed

ISSN: 2319-7064




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M.Tech / M.E / PhD Thesis | Civil Engineering | India | Volume 5 Issue 5, May 2016


Effect of Silicafume on Properties of High Strength Concrete with Recycled Concrete Aggregate

Vignesh.G, Dr. Selwyn Babu.J


Abstract: Concrete is a widely used material in the construction world. In this experimental work, mechanical and durability properties of high-strength concrete containing different levels of silica fume with recycled concrete aggregate was studied. The work was focused on concrete Mix M60 having a fixed water/cement ratio of 0.33 and a constant total cement content of 518.18 kg/m3. The percentages of silica fume that replaced cement in this research were 0%, 2.5%, 5%, 7.5% and 10%. The percentage of recycled concrete aggregate that replaced conventional aggregate in this research was 30%. Apart from measuring the workability of fresh concrete, the mechanical properties such as development of compressive strength on cubes, split tensile strength test on cylinders, flexural strength test on beams and young's modulus test on cylinders were evaluated. The durability properties such as water absorption, porosity test and ultrasonic pulse velocity on cubes were evaluated. The results of this research indicate that as the proportion of silica fume increased, the workability of concrete decreased but its mechanical properties such as 28-day compressive strength, split tensile and flexural strength improved. The water absorption and porosity of recycled concrete aggregate and silica fume replaced mixes are lower than normal mix but within the permissible limit. The Ultrasonic pulse velocity was increased while adding of silica fume in concrete.


Keywords: High strength concrete, Silica fume, Recycled concrete aggregate, Compressive strength test and Flexural strength test


Edition: Volume 5 Issue 5, May 2016,


Pages: 2128 - 2132


How to Cite this Article?

Vignesh.G, Dr. Selwyn Babu.J, "Effect of Silicafume on Properties of High Strength Concrete with Recycled Concrete Aggregate", International Journal of Science and Research (IJSR), https://www.ijsr.net/get_abstract.php?paper_id=NOV163904, Volume 5 Issue 5, May 2016, 2128 - 2132

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