Constitutive Law Of Structural Concrete
Under Geochemical Processes
Author(s)
S. Hernández, L. A. Romera & A. Mosquera
Abstract
Geochemical processes are an important issue in dam engineering and affect
several classes of these structures. They are mainly produced by the chemical
interaction between alkaline components of the cement and concrete aggregates
triggering an expansive process that creates tensile stresses in the concrete and
therefore decreasing the safety level in the construction.
This phenomenon has been studied in two Spanish dams, an arch dam and a
buttress dam. In both cases a number of structural models were produced and the
behaviour of the dam was matched with the numerical results of the computer
analysis by defining quite sophisticated constitutive laws in the concrete in
accordance with recent theories.
1 Description of the Belesar dam
The Belesar Dam is an arch dam located in North West Spain. It has a height of
130 m and its maximum length at the top is about 275 m. A view the dam
appears in Figure 1.
Figure 1: Picture of Belesar Dam.
Keywords
Related Book
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