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Investigate the Effects of Nano Aluminum Oxide on Compressive, Flexural Strength, and Porosity of Concrete

Alazemi, Athbi
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1544693885397299

Abstract Details

2018, Master of Science (M.S.), University of Dayton, Civil Engineering.
Concrete is relatively porous, and it shows great results in compressive strength. Many experimental methods have been implemented to improve its performance such as compressive strength, flexural strength, and porosity. This thesis presents the compressive strength and porosity behavior of 36 concrete cylinder specimens each measuring 8” x 4”; it also presents the flexural strength behavior of six concrete beams each measuring 21” x 6” x 6”. The materials that were used are as follows, a fixed 4% of silica fume (SF) and varying nano aluminum oxide (Nano-Al2O3) in these percentages 0.5, 1, 1.5, and 2. The analysis of the test data regarding compressive strength showed an increase in the mechanical properties when using a 4% SF and 0.5% Nano-Al2O3 content compared to the plain concrete (without additives) and 4% SF (without Nano-Al2O3). An addition of 1% or more of Nano-Al2O3, however, reduces the compressive strength of the concrete. In the porosity test, the continuous increase of Nano-Al2O3 reduces the porosity of concrete. Two percent Nano-Al2O3 results in 0.80% porosity; on the other hand, concrete without additives results in a porosity of 1.65%. Thus, the optimum ratio of Nano-Al2O3 should be 2%, which will be used in the flexural strength test. Lastly, in the flexural strength test, it was observed that when using 4% SF and 2% Nano-Al2O3 that weakness occurs in about 22.6% of the plain (without additives) concrete and weakness occurs in 11.3% of the concrete after only adding 4% SF (without Nano- Al2O3).
Joseph Saliba (Advisor)
54 p.
Civil Engineering; Materials Science; Mechanical Engineering; Nanoscience; Nanotechnology

Recommended Citations

Citations

  • Alazemi, A. (2018). Investigate the Effects of Nano Aluminum Oxide on Compressive, Flexural Strength, and Porosity of Concrete [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1544693885397299

    APA Style (7th edition)

  • Alazemi, Athbi. Investigate the Effects of Nano Aluminum Oxide on Compressive, Flexural Strength, and Porosity of Concrete. 2018. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1544693885397299.

    MLA Style (8th edition)

  • Alazemi, Athbi. "Investigate the Effects of Nano Aluminum Oxide on Compressive, Flexural Strength, and Porosity of Concrete." Master's thesis, University of Dayton, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1544693885397299

    Chicago Manual of Style (17th edition)

dayton1544693885397299
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This open access ETD is published by University of Dayton and OhioLINK.