Enhancement of Thermal and Sound Insulation Properties of Cement Composite Roofing Tile by Addition of Nanocellulose Coated Pineapple Fiber and Modified Rubber Tire Waste

Abstract

In this work, the enhancement of thermal and sound insulation properties of cement composite roofing tile with nanocellulose coated pineapple fiber and modified waste tire rubber is studied. The composite was composed of bacterial nanocellose (BNC) coated pineapple fibers, modified rubber particles, platicizer and type I Portland cement in the weight ratio of 10:50:0.8:100 with the water to cement ratio (w/c) of 0.5. The thermal conducitity of the fiber rubber cement composite could be reduced to 0.1080 ± 0.0048 W/m.K as opposed to 0.3810 ± 0.0041 and 0.5860 ± 0.0050 W/m.K for the fiber cement and the rubber cement composites, respectively. Moreover, the noise reduction coefficient of the fiber rubber cement composite could be increased to 0.2832 as opposed to 0.2143 and 0.1899 for the fiber cement and the rubber cement composites, respectively. These results revealed that adding nanocellulose coated pineapple fiber and modified rubber particles together to the cement composite can enhance the thermal insulation and sound absorption abilities of the composite roof tile significantly better than adding each constituent separately.

Incorporation of Rubber Waste to Fiber Cement Composite: Comparative Study of Rubber Tire Waste and Rubber Band Waste

“…RT yields better workability because its surface was treated as described in the experimental section to achieve a homogeneous mixture with the cement paste. Without such treatment, RT did not mix well with cement paste as shown in our previous study [7][8]. In contrast, the surface of RB was not treated, so it yields lower workability than the treated RT.…”

“…Many reports have demonstrated improvement of thermal and/or sound insulation properties of cementitious composites with either natural fiber or waste tire rubber [1][2][3][4][5][6]. Our previous studies have also shown that adding waste natural fibers in combination with waste rubber tire particles to the cement matrix can produce greater advantages than adding each constituent separately [7][8]. These advantages include the enhancement of flexural strength as well as thermal and sound insulation properties.…”

Development and characterization of nanocellulose/ carbonized waste rubber nanocomposites

“…Additionally, the use of nanocellulose as a matrix material in synthetic rubber nanocomposites has never been encountered before (Njuguna et al 2008;Pasquini et al 2010;Adeosun et al 2012;Abraham et al 2013;Cao et al 2013aCao et al , 2013bChen et al 2014;Foster et al 2018;Gupta et al 2018;Jardin et al 2020;Dominic et al 2020;Low et al 2021;Yasin et al 2021;Zor et al 2024). Hancharoen et al (2020) used bacterial nanocellulose and modified waste tire rubber for cement composite production. The sound absorption and heat insulation properties of the produced composite material were investigated.…”