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Hydro dam concrete

Mixing technology for monumental structures

Proven technology for hydro dam concrete

Customers worldwide rely on BHS technology when it comes to mixing earth-moist coarse aggregates for dams. Hydroelectric power plants supply more than a sixth of the energy consumed across the globe – and the trend is shifting in this direction. The dams required for this are impressive and ambitious structures. The materials used to construct them must be of the highest quality. Reliable machines, high throughput rates, perfect homogeneity: Enormous demands are placed on concrete technology during construction – for very good reason.

Benefits at a glance:

Proven und robust machine technology
High degree of homogeneity in a very short time
Batch sizes of up to 9 m³ hardened concrete
Increased wear protection thanks to Optilong
Suitable for continuous operation with low energy consumption
Large number of references across the globe

Low maintenance costs thanks to Optilong tiling

Low maintenance costs thanks to Optilong tiling

The mixers from BHS-Sonthofen deliver a consistently homogenous mixture after only a short mixing time. Our twin-shaft batch mixers (type DKX) are designed for high capacities and continuous operation. Optilong is our special, durable wear protection that addresses the needs of hydro dam projects. This reduces maintenance and machine downtimes to a minimum.

The right system for any hydro dam project

In addition to our batch mixers, we offer a range of continuously operating twin-shaft continuous mixers. Both mixer systems have proven track records for the construction of RCC dams worldwide. We also offer end-to-end continuous system solutions.

“Longtan” in China

001 Longtan Hydro Dam Guangzi China-verla¦êngert.psd

“Longtan” in China

The Longtan hydro dam is located along the Hongshui He River in southern China. With a height of 216 meters, the dam is the highest structure in the world made of roller-compacted concrete (RCC). Two BHS twin-shaft batch mixers of type DKX 7.0 were used to produce the concrete. In total, the two mixers produced around six million cubic meters.

“Dagu” near Zangmu

Six twin-shaft batch mixers of type DKX 6.0 from BHS produced the concrete needed to build the main embankment of the “Dagu” hydro dam near the Tibetan city of Zangmu. The construction site located 3,700 meters above sea level marks the highest point for BHS mixers to have ever been operated.

Twin-shaft batch mixer (DKX)

Invented by BHS – proven, reliable and innovative – providing top mixing results for complex applications for over 130 years

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Twin-shaft batch mixer (DKX)

Invented by BHS – proven, reliable and innovative – providing top mixing results for complex applications for over 130 years

Learn more

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Tests give certainty

Which mixer is the right one for your application? Don’t leave anything to chance. Leave it to our team of process consultants. Working together with you, our specialists will test the material and develop a tailor-made solution for you.

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Success stories

BHS mixers used to build a hydro dam in Portugal

November 2017

Since 2017, two twin-shaft batch mixers have been used in a modular system at Talleres Alquezar that has successfully produced 400,000 m3 of hydro dam concrete. Three hydro dams are being built on the Tâmega River that are expected to generate 1,760 gigawatt hours annually for the Iberian market once they have been commissioned as part of Spanish energy group Iberdrola’s large-scale hydroelectric project in Portugal. 242,000 m3 of concrete is needed for one dam wall alone.

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Bavarian mixing technology drives construction on the roof of the world – twin-shaft batch mixer deployed 3,700 m above sea level

October 2017

Six twin-shaft batch mixers of type DKX 6.0 delivered by BHS-Sonthofen are producing the concrete needed to build the main embankment of the Dagu hydro dam undergoing construction near the Tibetan city of Zangmu. The construction site is located 3,700 m above sea level, making this the most elevated site ever for employing mixers from BHS. BHS specially modified the mixers to meet the challenges they are facing at this extreme altitude.

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