The trend of collapse of buildings in concrete materials in Lagos State, Nigeria (2013-2019)
Autor: | Anthony N. Ede, Chukwueloka A.U. Okeke, Akpabot Ifiok Akpabot, Oluwarotimi Michael Olofinnade, E. I. Ugwu, Kehinde D. Oyeyemi, Fiyin Gambo, Solomon Oyebisi |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | IOP Conference Series: Earth and Environmental Science. 655:012078 |
ISSN: | 1755-1315 1755-1307 |
Popis: | t. In recent times, efforts are channeled towards limiting the impact of waste plastic pollution on the environment. This study examines the beneficial utilization of polyethylene terephthalate (PET) wastes, which is a non-biodegradable waste materials as a partial substitute for sand in the production of non-load bearing hollow sandcrete blocks. The physical and mechanical properties such as density and compressive strength of the hollow sandcrete blocks using PET waste as a replacement for fine aggregate at 5%, 10%, 30% and 50% were determined. Tests results show that the density of the produced sandcrete blocks decreases as the waste PET content increases. Results showed that the density varied from 1391.33 kg/m3 for 50%PET content to 1954.54 kg/m3 for 5%PET content, while the density of the reference sandcrete was 2002.15 kg/m3 for 7 days. The values of densities ranged between 1453.88 kg/m3 for PET 50% and 1851.09 kg/m3 for PET 5% and the density of reference sandcrete was 1991.77 kg/m3 at 28 days. The sandcrete blocks also demonstrate a similar reduction trend in compressive strength as the PET content increases. The compressive strength ranged between 1.140 N/mm2 for 50%PET and 2.564 N/mm2 for 5%PET content and 1.510 N/mm2 for 50%PET to 2.991 N/mm2 for 5%PET respectively, as the curing age increases from 7 to 28 days. The hollow sandcrete block containing an optimum 5% replacement percentage of sand with PET waste showed comparable strength to the conventional sandcrete blocks. This will help to mitigate the menace of marine plastic pollution and promote responsible consumption. |
Databáze: | OpenAIRE |
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