International Journal of Academic and Applied Research (IJAAR)
  Year: 2020 | Volume: 4 | Issue: 3 | Page No.: 15-22
Development of Low-Density Polyethylene-Sand Composite Bricks via Thermal Degradation of used Sachet Water Bags
Abubakar Zaid, Olabimtan Olabode .H, A.Z. Ngari, Opeyemi Adegboyo.O, Samuel Florence. A, Bashir Muhammad Ahmad.

Abstract:
Used water sachets (LDPE)) is the major solid wastes that are being experienced adversely within the environment where treatment and recycling methods are not available. This thereby translates into serious public and environmental concerns. The perceived valueless LDPE like used water sachet bags (UWSB) has been re-engineered by integrating some fine sand particles with the molten form of the waste sachet to achieve bricks of 1017.336m3 dimension at three different ratios of LDPE: sand (A= 1:6, B=1:3 and C=1:2). The products were characterized by compressibility strength [Higher with sample C (1:2) at day 6 and lower with sample A at day 1; the degree of relationship with the aging (R2) is 0.9872 for A, B, and C], density [Higher with sample C at day 6 and lower with sample A at day1; the degree of relationship with aging (R2) is 0.9872, 0.9883 and 0.9872 for A, B, and C respectively], specific gravity[Higher with sample C at day 6 and lower with sample A at day 1; the degree of relationship with aging (R2) is 0.7533,0.9882 and 0.9873 for A, B and C respectively.], porosity[Higher with sample C at day1 and lower with sample A after 6 days; the degree of relationship with aging (R2) is 0.7850,0.7923 and 0.7976 for A, B and C respectively.] and water absorptivity [Higher with sample C at day 1 and lower with sample A at day 6; the degree of relationship with aging (R2) is 0.7955,0.7971 and 0.7966 for A, B and C respectively]. This has proven to be a viable, cheaper and environmentally stabilized process in waste recycling.