Abstract: Sustainability is a wide growing concept in the present scenario. As the cost of the construction industries is rocketing up along with the deterioration of the environment, construction techniques which are eco-friendly and economic are started to be practiced. Cutting down the amount of cement could reduce both the cost as well as the pollution. It is tried to introduce this concept into blocks, specifically earth block using phosphogypsum. Phosphogypsum refers to the gypsum formed as a by-product of processing phosphate ore into fertilizer with sulphuric acid. In its natural state phosphogypsum is radioactive due to the presence of naturally occurring uranium and radium. By the long term exposure to atmosphere, the radioactivity of phosphogypsum can be gradually reduced. In this work, four different combinations of cement and phosphogypsum were used in stabilizing blocks. The percentage addition of stabiliser to earth block is limited to about 15-18%. It is observed that the combination of cement and phosphogypsum is more effective than using cement alone in making earth blocks.
Keywords: Sustainability, Phosphogypsum, Stabilisation.
Title: Sustainable Earth Block Using Phosphogypsum
Author: Anju EC, Aswathy MR, Chaithra J Sing, Dhanya Daniel, Anniamma Chacko
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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