2021
DOI: 10.3390/app11114886
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Mechanical Properties and Thermal Conductivity of Fly Ash-Based Geopolymer Foams with Polypropylene Fibers

Abstract: This paper focuses on the effect of polypropylene (PP) fibers on the mechanical properties and thermal conductivity of fly ash-based geopolymer foams. Class C Fly ash (FA) was used as a binder material. A mixture of sodium silicate (SS) and sodium hydroxide (SH) was used as an alkaline activator of the geopolymer binder. The foams were prepared mechanically by mixing the foaming agent with distilled water at high pressure. The foams were added to the geopolymer admixture with volumes of 40% and 60%. A small do… Show more

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Cited by 25 publications
(10 citation statements)
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“…Comparison with works [ 2 , 29 , 31 ] confirmed the effectiveness of prescription methods given in this study, the results of which are consistent with the results obtained by the authors in [ 2 , 29 , 31 ].…”
Section: Resultssupporting
confidence: 92%
“…Comparison with works [ 2 , 29 , 31 ] confirmed the effectiveness of prescription methods given in this study, the results of which are consistent with the results obtained by the authors in [ 2 , 29 , 31 ].…”
Section: Resultssupporting
confidence: 92%
“…To focus on the thermal insulation applications, the comparison was limited in the range of thermal conductivities smaller than .35 W/mK. As a result, a total of 52 datasets were assembled from 14 studies for comparison 9–11,37,38,43–46,48–52 . Figure 9 collects the compressive strengths of the geopolymer foams.…”
Section: Resultsmentioning
confidence: 99%
“…As a result, a total of 52 datasets were assembled from 14 studies for comparison. [9][10][11]37,38,[43][44][45][46][48][49][50][51][52] Figure 9 collects the compressive strengths of the geopolymer foams. Generally, the proposed geopolymer foams exhibit superior compressive strength even in comparison to the FA/GGBFS geopolymer foams reported in the literature, except for the one with a thermal conductivity of .21 W/mK.…”
Section: Comparisonsmentioning
confidence: 99%
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