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Fresh Properties of Fiber Reinforced Cement-Based Foam with Pozzolans
This paper investigates the fresh properties of cement-based foam reinforced with fibers and examines the influence on density, pozzolan, spreadability, and flowability. Here, marsh and flow cone testing were employed for measuring the flowability and spreadability. This testing was conducted on seven series of cement-based foam mixtures prepared by adding polypropylene (PP) microfibers at the volume fraction of 0.2% in 800, 600, and 400 kg/m3 cast densities. In six series, the 10% and 20% of cement were replaced by fly ash, silica fume, and metakaolin, respectively. The results showed that the slurry flow time increases in the presence of polypropylene fibers and pozzolans, with metakaolin blended mixtures, recorded the longest time. Similarly, an increase in the foam volume was noticed in all mixtures except for the metakaolin series with higher substitution. Also, it was observed that the spread diameter reduces in fiber reinforced cement-based foam mixtures, but for fly ash series increase was noticed. Based on these results, models were developed for predicting the foam volume and spreadability for mixtures with pozzolan and polypropylene fibers.
Fresh Properties of Fiber Reinforced Cement-Based Foam with Pozzolans
This paper investigates the fresh properties of cement-based foam reinforced with fibers and examines the influence on density, pozzolan, spreadability, and flowability. Here, marsh and flow cone testing were employed for measuring the flowability and spreadability. This testing was conducted on seven series of cement-based foam mixtures prepared by adding polypropylene (PP) microfibers at the volume fraction of 0.2% in 800, 600, and 400 kg/m3 cast densities. In six series, the 10% and 20% of cement were replaced by fly ash, silica fume, and metakaolin, respectively. The results showed that the slurry flow time increases in the presence of polypropylene fibers and pozzolans, with metakaolin blended mixtures, recorded the longest time. Similarly, an increase in the foam volume was noticed in all mixtures except for the metakaolin series with higher substitution. Also, it was observed that the spread diameter reduces in fiber reinforced cement-based foam mixtures, but for fly ash series increase was noticed. Based on these results, models were developed for predicting the foam volume and spreadability for mixtures with pozzolan and polypropylene fibers.
Fresh Properties of Fiber Reinforced Cement-Based Foam with Pozzolans
Iran J Sci Technol Trans Civ Eng
Batool, Farnaz (author) / Bindiganavile, Vivek (author)
2020-10-01
12 pages
Article (Journal)
Electronic Resource
English
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