Compressive Properties of Expanded Perlite Based Particulate Composite for the Application in Building Insulation Board

Abstract

In this paper, expanded perlite based particulate composites for the application in building insulation board are studied for compressive behaviour. Composites with a density range from 0.452 to 0.640 g/cm3 are manufactured using floatation method by varying binder content (sodium silicate solution and corn starch as binder) and the degree of compaction. Compressive strength and modulus are investigated based on two manufacturing parameters (i.e. Compaction ratio and Water/SSS ratio) and the density of the composites. Compressive strength and modulus were found to be linearly dependent on the density however the trend for compressive strength and modulus were found to be different. The change of compressive modulus with respect to increasing density is found to be different for different compaction ratio which is not significant in the case of compressive strength. The range of specific compressive strength of the composites from 4.27 to 5.08 MPa/(g/cm3) was found to be suitable for the building insulation board application when compared with existing literature.

Compressive behavior of perlite/sodium silicate composite foam modified by boric acid

“…Adhikary et al manufactured expanded perlite-sodium silicate composites reinforced with corn starch and showed the sp. CS in the range of 4.27-5.08 MPa/(g/cm 3 ) [20]. Allameh-Haery et al investigated the effect of density on expanded perlite-epoxy composites and shown an sp.…”

“…Adhikary et al showed the improvement in compressive properties of expanded perlite/sodium silicate composites with the reinforcement of corn starch [20], while Tian et al showed the effect of sodium silicate on expanded perlite and discovered a gradual increase in apparent density, tensile strength, flexural strength with the increase in sodium silicate contents on perlite [21].…”

Effect of Nylon Fiber Reinforcement on Mechanical Behavior of Expanded Perlite/Sodium Silicate Composites

“…Alam et al [6] investigated expanded perlite-fumed silica composite for effective vacuum insulation panel core and reported that the inclusion of perlite would reduce the cost of the panel with good insulation properties. Expanded perlite-based composite panels were manufactured and their physical and mechanical characteristics were investigated by many researchers using various binder systems such as IOP Publishing doi:10.1088/1757-899X/1305/1/012033 2 potato starch [7], sodium silicate solution [8][9][10][11], epoxy [12], sodium silicate solution with corn starch [13], boric acid modified sodium silicate solution [14], recycled polystyrene [15], etc. Expanded perlite particles have also been studied for manufacturing lightweight concrete [16][17][18][19][20][21].…”

Thermo-Mechanical Behavior of Green Sandwich Structures for Building and Construction Applications

“…The uses of expanded perlite particles for the development of building materials were covered extensively in a review by Rashad [6]. Expanded perlite particle-based building boards were studied by many researchers, including fiber/asphalt coated perlite building boards studied by Miscall and Rahr [7]; mineral board studied by Sherman and Cameron [8]; perlite/starch foam studied by Shastri and Kim [9]; gypsum/perlite composite studied by Vimmrova [10] and Karua and Arifuzzaman [11]; perlite/sodium Processes 2023, 11, 2456 2 of 18 silicate board studied by Arifuzzaman and Kim [12][13][14][15], Adhikary et al [16], Karua and Arifuzzaman [17], Takey et al [18], Tian et al [19], and Abir et al [20]; and perlite and vermiculate based lightweight fire-rated board studied by Yew et al [21].…”