Effect of water on the triaxial response under monotonic loading of asphalt concrete used in dams
Por:
Gaxiola Hernandez, Alberto, Ossa Lopez, Alexandra
Publicada:
1 ago 2019
Resumen:
Embankment dams with asphalt concrete cores have been constructed on
practically all continents with satisfactory results. Nowadays many
advantages, such as the mechanical strength, are known that makes
asphalt concrete a competitive alternative for the construction of the
impervious elements of dams. However, the current available information
does not describe the effect of prolonged contact between asphalt
concrete and water on the structure of an embankment dam. In this
research cylindrical asphalt concrete specimens with a void content
similar to that used in impervious barriers of dams were fabricated and
submerged in water for a prolonged period to simulate the conditions
experienced by asphalt concrete placed inside an embankment dam as its
core material. Subsequently, triaxial compression tests were conducted
on the specimens. The results indicated that the asphalt concrete
exhibited a reduction in strength because of the saturation process to
which the material was subjected. However, no changes were observed in
the mechanical response to prolonged contact with water for periods of
up to 12 months.
Filiaciones:
Gaxiola Hernandez, Alberto:
Univ Nacl Autonoma Mexico, Inst Ingn, Ave Univ 3000, Mexico City 04510, DF, Mexico
Ossa Lopez, Alexandra:
Univ Nacl Autonoma Mexico, Inst Ingn, Ave Univ 3000, Mexico City 04510, DF, Mexico
|