Akzo Nobel N.v.

Volvo Truck Corporation

Eka Chemicals Ab

Hans Bergqvist

Peter Greenwood

Ulf Skarp

Satish Chandra

A foldable front step for a vehicle which is adapted to be mounted at a front end of the vehicle, typically a front end of a vehicle cab, wherein the front step is adapted to be folded between an open position and a closed position when being mounted to the vehicle and wherein the front step has a length extension corresponding to a transverse extension of the vehicle when the front step is mounted thereto.

Foldable front step and vehicle

The invention relates to a construction material comprising a hydraulic binder, water, and an aluminum-modified colloidal silica. The invention also relates to a method for preparing such materials and the use thereof.

Construction material

The invention concerns silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviation lower than about 15% by numbers. The invention also concerns a method for preparing a silica sol mixture and use thereof. The invention further concerns a concrete composition comprising a silica sol mixture and a method for preparing such composition.

Mixture of silica sols

The invention concerns a silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviation lower than about 15% by numbers. The invention also concerns a method for preparing a silica sol mixture and use thereof. The invention further concerns a concrete composition comprising a silica sol mixture and a method for preparing such composition.

The present invention relates to a concrete composition comprising a hydraulic binder, aggregates, water, silica sol and a superplasticiser being a polycarboxylate. The invention further involves a method for preparation thereof and use of the prepared concrete composition as high fluidity concrete.

Composition and method to prepare a concrete composition

A method for preparing concrete or mortar in which a mixture of a hydraulic binder, aggregates, water, and colloidal silica is prepared. The relative standard deviation of the particle size distribution by numbers of the colloidal silica is at least about 30%. The invention also relates to concrete or mortar obtainable by the method.

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Torslanda, Sweden

Hans Bergqvist