Influence of secondary aluminum dross (SAD) on compressive strength and water absorption capacity properties of sandcrete block
| Autor: | Babatunde F Ogunbayo, Kunle Elizah Ogundipe, Opeyemi Joshua, David O. Nduka, Adekunle M Ajao |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science Absorption of water General Computer Science 020209 energy General Chemical Engineering Dross Metallurgy Aluminium smelting General Engineering 02 engineering and technology Sandcrete replacement sustainability Engineering (General). Civil engineering (General) 020901 industrial engineering & automation Compressive strength Hazardous waste Block (telecommunications) aluminum dross sandcrete block 0202 electrical engineering electronic engineering information engineering construction project TA1-2040 |
| Zdroj: | Cogent Engineering, Vol 6, Iss 1 (2019) |
| ISSN: | 2331-1916 |
| DOI: | 10.1080/23311916.2019.1608687 |
| Popis: | Secondary aluminum dross (SAD) is a hazardous by-product of the aluminum smelting industry. Among various recycling options of this waste, construction and building materials applications is one of the value-added options to end dumping. The present study, thereby, investigates the influence of SAD on the mechanical and durability properties of sandcrete blocks (SBs). Five partial replacements 0%, 10%, 20%, 30% and 40% of river sand with SAD were experimented at constant water–cement ratio of 0.45. Sixty-three SB samples of size 150 mm × 225 mm × 450 mm were molded and cured at different ages of 7, 14 and 28 days before the hardened blocks were subjected to water absorption and compressive crushing tests. The study results revealed that the water absorption of SAD-blended samples was found to rise with increasing percentage replacement with SAD. Also, the study revealed that beyond 10% replacement with SAD, the investigated properties fall below the required limits as stated in relevant standards. SBs blended with SAD up to 10% of weight of sand could be beneficial for construction economy, healthy living, ecological and sustainable built environment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|