Pemanfaatan Abu Terbang (Fly Ash) Batu Bara sebagai Campuran Pembuatan Bata Beton

Haspiadi Haspiadi

Jurnal Riset Teknologi Industri
Vol 3 No 6 Desember 2009

The use of coal sources of energy has produce fly ashes, which has became a big source of pollution. Fly ash is a fine glass like powder recovered from gases created by coal fired electrical  power  generation.   One of the alternatives  to solve  this problem  is by using  this material  to produce  paving  block.  This research  was conducted  to find possible  use of fly ash to replace  sand  in paving block. In this research the effect of replacing zero to 40 % sand with fly ash is evaluated.  It is found out that best result could be obtained by replacing sand  by  10 % fly ash  which  meet  the  requirement   according   to National Standard   of  Indonesia   SNI  03-0691-1996    Paving   Block.   The  results   of compression   strength  and  surface  area  indicate  that  the  requirement   for parking  area  application  (class  B).  On the  other  hand  the result  of  water absorption  analysis  Indicate  the requirements   of standard  for garden  place where garden plants. tools, etc are sold and other specification  with the same level (class C).