TITLE:
Use of Coal Waste as Fine Aggregates in Concrete Paving Blocks
AUTHORS:
Cassiano Rossi dos Santos, Juarez Ramos do Amaral Filho, Rejane Maria Candiota Tubino, Ivo André Homrich Schneider
KEYWORDS:
Coal Waste; Recycling; Environment; Concrete
JOURNAL NAME:
Geomaterials,
Vol.3 No.2,
April
30,
2013
ABSTRACT:
The aim of this work was to study the use of coal waste to produce
concrete paving blocks. The methodology considered the following
steps: sampling of a coal mining waste; gravity separation of the fraction with
specific gravity between 2.4 and 2.8; comminution of the material and
particle size analysis; technological characterization of the material and the
production of concrete paving blocks. The results showed that the coal waste
considered in this work can be used to replace conventional sand as a fine
aggregate for concrete paving blocks. This practice can collaborate in a
cleaner coal production.