STONE DUSH SEBAGAI PENGGANTI AGREGAT TERHADAP BETON NORMAL

Abstract

Construction of the structure and infrastructure in Indonesia began to rapidly return.  Civil  buildings  are usually  constructed  using a  base material in the form of concrete and teel.  Concrete  used  isusually  a  mixing  between the  coarse  aggregate  (gravel),  fine  aggregate  (sand), cement,  and water. The material  used in the manufacture  of concrete  are  materials  culled from  nature  so that it can  be called as  natural resources.  Makers of  concrete  material  is largely  natural resources  that cannot be  renewed.  Natural resources  that cannot be  renewed  will  gradually  run out,  it needs to be  searched  then  need to  look for  a successor. Grey  is  a by-product of  the stone-breaking  machine  in the process of  solving  the stone  to stone  broke  the aggregate  replacement  materialscould be made  smooth.  However  grey  had  many disadvantages  such as  water absorption  greater than  natural  sand. In the writing of this blending of gray stone with fine aggregate in this case in the form of grey concrete planning quality f'c 25 MPa. In this case  is expected  to come by  a good  proportion  so that the  blending is  obtained  strong  press optimum

Keywords:  grey,concrete  Aggregate,  fine,  normal  quality  f'c  25  MPa, robust  press