Utilization of Phosphoric Acid and Lime for Stabilizing Laterite for Lateritic Bricks Production

Autor:	Adefemi Daniel Adekoya, A. L. Ayodele, Abdulhalim Oshioke Mohammed, Ayowande Oluwatosin
Rok vydání:	2021
Předmět:	Absorption of water Materials science Curing (food preservation) General Medicine engineering.material Bulk density chemistry.chemical_compound Compressive strength chemistry Flexural strength engineering Laterite Phosphoric acid Lime Nuclear chemistry
Zdroj:	Civil Engineering Dimension. 23:1-8
ISSN:	1979-570X 1410-9530
DOI:	10.9744/ced.23.1.1-8
Popis:	This study investigates the use of phosphoric acid (H3PO4) and lime in stabilizing lateritic soil for lateritic bricks production. Varying percentages (0, 2, 4 and 6%) of 1 M H3PO4, 5% lime and their combinations were mixed with lateritic soil for stabilization purpose. Hollow bricks were produced from the different mixes. The bricks were cured for 7, 14 and 28 days under ambient air condition. The compressive strength (fc), bulk density (pb), dry density (pd) and water absorption rate were determined at each of the curing days while the modulus of rupture (fr) and pH were determined after 28 days. The results show a maximum fc of 0.93 N/mm2 and 0.87 N/mm2 were obtained at 5% and 4% H3PO4 stabilization. The maximum pb and pd of 15.2 kN/m3 and 14.9 kN/m3 respectively were obtained at 4% H3PO4 stabilization. The maximum fr of 0.2 N/mm2 was obtained at combined 4% H3PO4 and 5% lime stabilization while none of the bricks passed the water absorption test.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::948eafcfd331369e5048f25dfd072520 https://doi.org/10.9744/ced.23.1.1-8 Zobrazit plný text záznamu Plný text ve formátu PDF