Abstract:
The disclosure concerns a device for determining the dimension of the upper concrete cover of a concrete component, having at least one fastening by means of which the device can be fixed to a reinforcement for a concrete component and at least one section capable of projecting above the upper concrete cover during casting in the reinforcement, wherein this section presents means of configuration by which the dimension of the upper concrete cover may be determined.
Abstract:
A method of reducing the drying shrinkage of a cementitious composition to which water has been added and the composition placed, comprising adding to the composition prior to placement at least one siloxane compound that is at least one of liquid and soluble in at least one of water and aqueous alkali.
Abstract:
A composition for improving the properties of a cementitious composition comprises a fluid blend of at least one polyalkylene oxide, at least one aqueous paraffin emulsion, at least one siloxane and, if necessary for fluidity, water.