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...
morePhosphogypsum (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. The present work focuses on the ultrasonic pulse velocity of wade sand –lime-cement-phosphogypsum building bricks produced under a static compaction of 20MPa. It is observed that these bricks have sufficient Ultrasonic pulse velocity Tests were also conducted to study the relationship between ultrasound pulse velocity (UPV) with strength of bricks.. The results suggest that compressive and flexural strength values of phosphogypsum-wase sand-lime-cement-building bricks produced undera static compaction of 20 MPa, may approximately be determined without a destructive testing by using the non-destructive UPV measurements.
