slugValorization of Phosphogypsum in CrushingSand- Phosphogypsum -Cement-Lime Solid Bricks Grade SW
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2013, Vol 1, Issue 4
Abstract
Phosphogypsum (calcium sulfate) is a naturally occurring part of the process of creating phosphoric acid (H3PO4), an essential component of many modern fertilizers. For every tonne of phosphoric acid made, from the reaction of phosphate rock with acid, commonly sulfuric acid, about 3 t of phosphogypsum are created. There are three options for managing phosphogypsum: (i) disposal or dumping, (ii) stacking, (iii) use-in, for example, agriculture, construction, or landfill.The need to reduce solid waste volume has caused scientists to invent new construction materials produced using waste materials. In this study, phosphogypsum (PG) from Tunisia, crushing sand (CS), natural hydraulic lime (NHL), cement (C) and water are used in solid bricks production. phosphogypsum, crushing sand, natural hydraulic lime and cement were mixed, humidified, compacted and cured for periods of 28, 56 and 90 days. The compressive strength, density, water absorption, saturation coefficient and leaching test of the bricks were measured.The obtained results showed that CS-NHL-C-PG bricks are found to be conforming to physical requirements of clay or shale building brick grade SW (severe weathering), bricks intended for use when high and uniform resistance to damage caused by cyclic freezing is desired and where the brick may be frozen when saturated with water. Therefore, CS-NHL-C-PG bricks can replace the clay or shale brick grade SW.
Authors and Affiliations
Lamia Bouchhima, Mohamed Jamel Rouis, Mohamed Choura
Keywords
Related Articles
- EP ID EP17713
- DOI -
- Views 402
- Downloads 13
An Analysis of Services Sector in Indian Economy
Service sector also known as tertiary sector is essential for economic growth in any economy including India. It has emerged as the biggest and fastest-growing sector in the global economy in the last two decades. This...
Privacy Preserving in Data Mining
Data mining is an increasingly important technology for extracting useful knowledge hidden in large collection of data. It is today well observe that database represent important role in many application and for this re...
Handoff schemes and its performance analysis of priority within a particular channel in wireless systems
The whole civilization in the world is dependent on wireless technology. The Gradual growth or development of current environment of the people is not possible without communication. As the use of wireless/ mobile devic...
Energy-Aware Load Balancing and Application Scaling For the Cloud Ecosystem
To introduce an energy-aware operation model used for load balancing and application scaling on a cloud. The basic philosophy of our approach is defining an energy-optimal operation regime and attempting to maximize the...
slugA Survey on Lane Marking Techniques
A lane is part of a carriage way (roadway) that is designated for use by a single line of vehicles, to control and guide drivers and reduce traffic conflicts. Most public roads (highways) have at least two lanes, one fo...