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Ralco

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Ralco completed
Ralco completed

Particulars

Owner: ENDESA, Spain

Designer: INGENDESA

Contractor: Febrag (JV of Fe Grande and Brotec of Chile) with ASI RCC

Statistics

Type: Gravity

Purpose(s): Hydropower

Reservoir capacity: 1200 m3x106

Height: 155 metres

Length: 360 metres

Volume of RCC: 1596 m3x103

Total volume: 1640 m3x103

Construction Dates

Start of Project: 08/99 (August 1999)

Start of RCC: 01/02 (January 2002)

End of RCC: 09/03 (September 2003)

End of Project: 04/04 (April 2004)

Country: Chile

River: Bio-Bio

DMS Co-ordinates: 37˚59'57.12"S, 71˚31'10.56"W

DD Co-ordinates: -37.999199, -71.519600

Facings

Upstream

SlopeType
VerticalRCC against formwork (GEVR/GE-RCC)

Downstream

SlopeType
0.80RCC against formwork (GEVR/GE-RCC)

Spillway

SlopeType
0.80Reinforced conventional concrete cast after RCC placement

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
133
95  116
Pozzolan (kg/m3)Pozzolan Type
57Natural pozzolan (ASTM Class N)
50  41