Comparative analysis of stone aggregates for the manufacture of concrete in the construction of civil works
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Abstract
This research is a comparative analysis between aggregates
from the Picoazá - Megarok Basaltic quarry in Portoviejo
and from the Ahon Mine in Quevedo, the purpose is to
analyze and characterize the stone aggregates from the
Picoazá Basaltic quarry and from the Ahon Mine to design
concrete mixes and their impact on the performance for
construction; an experimental methodology was applied.
Samples were tested at the Soil Mechanics Laboratory of
the Technical University of Manabi. Among the tests used
were: angels machine, coarse granulometry, fine
granulometry, specific weights, loose unit weights, unit
weights, rodded unit weight, sulfate test, abrasion test, as
well as the preparation of specimens to be tested to simple
compression and to verify the resistances at ages of 7, 14,
21, 21, 28 days. Obtaining differentiated results, it is
concluded that the aggregates of the Picoaza Megarok
Basaltic quarry have greater resistance to compression in
concretes than the Ahon Mine that come from a riverbed,
these resistance drops of approximately 15% with respect to the Picoaza quarry, are due to the content of silt
material present in the aggregate.
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