Strength and fracture energy of foamed concrete incorporating rice husk ash and polypropylene mega-mesh 55

This paper presents the utilization of rice husk ash (RHA) as sand replacement and polypropylene mega-mesh 55 (PMM) as fiber reinforcement in foamed concrete. High pozzolanic reaction and the ability to become filler make RHA as a strategic material to enhance the strength and durability of foamed c...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 248; no. 1; pp. 12005 - 12009
Main Authors Jaini, Z M, Rum, R H M, Boon, K H
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2017
Subjects
Ashes
Compression tests
Compressive strength
Concrete
Fiber reinforcement
Mechanical properties
Plastic foam
Polypropylene
Strategic materials
Tensile tests
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Summary:This paper presents the utilization of rice husk ash (RHA) as sand replacement and polypropylene mega-mesh 55 (PMM) as fiber reinforcement in foamed concrete. High pozzolanic reaction and the ability to become filler make RHA as a strategic material to enhance the strength and durability of foamed concrete. Furthermore, the presence of PMM optimizes the toughness of foamed concrete in resisting shrinkage and cracking. In this experimental study, cube and cylinder specimens were prepared for the compression and splitting-tensile tests. Meanwhile, notched beam specimens were cast for the three-point bending test. It was found that 40% RHA and 9kg/m3 PMM contribute to the highest strength and fracture energy. The compressive, tensile and flexural strengths are 32MPa, 2.88MPa and 6.68MPa respectively, while the fracture energy achieves 42.19N/m. The results indicate high potential of RHA and PMM in enhancing the mechanical properties of foamed concrete.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/248/1/012005