Рубрика: The Alkali-Silica Reaction. in Concrete

Repairs

Long-term observations on concrete core samples immersed in KOH solution at different temperatures indicated that the expansion potential of the concretes was not yet exhausted14. The repair techniques, therefore, had to take into account the present state of distress as well as possible aggravation in future. Analyses of stability against overturning as well as sliding […]

Rihand Dam and powerhouse structure

The concrete gravity dam and adjacent powerhouse of this hydroelectric project, 25 years after their construction, showed extensive distress, which was attributed to ASR4. External manifestations included cracking of concrete, misalignment of machinery and difficulties in the operation of gates, cranes and passenger lifts as a result of movements in concrete. In the powerhouse, the […]