Abstract
Hase Dam, being built to form the lower reservoir for Ohkawachi Pumped Storage Power Project (1.28MKW) of the Kansai Electric Power Company Inc., is the second dam by ELCM (Extended Layer Construction Method) in Japan. The dam 102m in height and with volume of 565×103m3 is progressing at an average rate of 6 lifts (4.5m) per month and is expected to be completed in March 1992.
In this article several measures taken are described.
Some of them are:
• Mixing moderate heat Portland cement with blast-furnace slag at the batching plant on site. Binder can therefore suit properly types of mix.
• Use of once only steel form works for finishing slump concrete at lateral yard joints.
• Cooling air arround concreting using spout spray plants.
