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Experimental Investigation on Mechanical Characterization of Fiber Reinforced Foamed Concrete

Khan, Mohammed Imtiaz
http://rave.ohiolink.edu/etdc/view?acc_num=akron1386957280

Abstract Details

2014, Master of Science, University of Akron, Civil Engineering.
With the increase in demand for structures which are light in weight, researcher and industrialist interest in foamed concrete to be used in structural applications is steadily increasing. Foamed concrete is currently believed to have a promising future. Foamed concrete was restricted to use as partition wall, thermal insulation, filling the void and rehabilitation work in the past. In the last two decades, with the understanding of the phenomenon underlying foamed concrete, researchers have studied various parameters that affects the performance of foamed concrete with and without fibers, and efforts have been made to use foamed concrete in structural application. The main objective of the research is to investigate the mechanical and structural properties of plain and fiber reinforced foamed concrete Foamed concrete also known as cellular concrete or lightweight concrete is a type of concrete with cementitious paste, fines, water and voids without coarse aggregate. The voids are created by using foam. The use of admixtures such as fly ash, silica fume and fibers in the foam concrete provide more strength than plain foamed concrete (PFC). Under this research program, three different mixes were made: plain foam concrete (PFC), polypropylene fiber reinforced foam concrete (PPFC) and basalt fiber reinforced foam concrete (BFC). Specimens were tested for compressive strength, splitting tensile strength, Young’s Modulus and Poisson’s ratio, Flexural strength and RFC (Reinforced Foamed Concrete) strength. This study showed that the use of optimum foam volume i.e. 20% gives a specific density of foam concrete 70 – 100 pcf and compressive strength of 3000 – 5500 psi. For the study of flexural application, eight different steel reinforced sandwich beams were tested. For study of compression application, sixteen compression columns, eight of them with reinforcement and eight without reinforcement were tested. Steel reinforced sandwich beams were divided into four different sets, two of each, normal concrete - Styrofoam R-13 rating combination, normal concrete - PFC combination, normal concrete - PPFC combination and normal concrete – BFC combination. Similarly, to study the structural behavior of the compression column, specimens were divided into different groups as that of sandwich beams. The flexural strength of BFC specimen was 10 times more than PFC specimen. Among the RFC beam specimens, BFC has shown maximum load carrying capacity. Also, experimental results show that normal concrete – BFC combination has shown the highest load carrying capacity under bending. Among the compression column normal concrete – PFC combination has shown the highest load carrying capacity.
Anil Patnaik, Dr. (Advisor)
Craig Menzemer, Dr. (Committee Member)
Ping Yi, Dr. (Committee Member)
162 p.
Civil Engineering

Recommended Citations

Citations

  • Khan, M. I. (2014). Experimental Investigation on Mechanical Characterization of Fiber Reinforced Foamed Concrete [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1386957280

    APA Style (7th edition)

  • Khan, Mohammed Imtiaz. Experimental Investigation on Mechanical Characterization of Fiber Reinforced Foamed Concrete. 2014. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1386957280.

    MLA Style (8th edition)

  • Khan, Mohammed Imtiaz. "Experimental Investigation on Mechanical Characterization of Fiber Reinforced Foamed Concrete." Master's thesis, University of Akron, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1386957280

    Chicago Manual of Style (17th edition)

akron1386957280
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This open access ETD is published by University of Akron and OhioLINK.