UTILIZATION OF WASTE FOUNDRY SAND IN FLY ASH BRICKS

Abstract

The fast and continuous technological development has led to enormous amount of waste, the accumulation of waste which is an environmental concern. The demand for natural sand in the construction industry has increased a lot, resulting in the reduction of availability of natural sand resources. Natural sand deposits are being depleted and causing serious threat to environment as well as the society. In this situation research began for inexpensive and easily available alternative material to natural sand, a sincere attempt has been made in choosing waste foundry sand as an alternative & as a partial and full replacement of conventional sand in the Fly ash bricks as well as This  paper  presents  Fly  Ash  brick  properties and comparative study between fly ash brick & clay brick, manufacturing  process  material  required  for preparing  the fly  ash bricks  as per Indian standard  code provisions, inspection and  quality control.  The textures  of the  bricks with  Fly Ash  were  very similar  to that  of clay bricks; the  sample with the additive  could  have  practical Implications as a means of recycling and for achieving cost savings in  brick  production.  The absorption coefficient, shape and  size,  density,  weight,  porosity,  thermal conductivity  and  compressive  strength  of  Fly  Ash  bricks Compare with normal clay bricks that delivered good results. From the present study, it can be  concluded that  Fly Ash bricks used as an alternative to clay bricks. The strength property are assessed and is compared with the clay bricks and Fly ash bricks. When compared with clay bricks 28 days Compressive strength of fly ash Bricks is 5% more. Water absorption capacity of fly ash brick is less by 0.8% and, Efflorescence for fly ash Bricks is Nil.