FREMGANGSMAADE OG MIDDEL TIL FREMSTILLING AF BETON

摘要

By adding an alkaline solution to the aggregate in concrete it will be possible to use kinds of earth occurring at the place of production as aggregate and by means of this measure to save the often considerable costs of providing graded sand and gravel. Further this alkaline solution can be used as an additive to strongly contaminated substances such as fly ash and sulphite powder and by this means stabilize among other things the heavy metals in such a way that they do not place a load on the environment. The agglomeration is improved by this addition and by means of this improvement the naturally occurring binding property of the materials is improved by means of a change of the surface tensions and this leads to an increase of the cement reaction. This is apparent from the relatively big crystal formations in the concrete and it also seems as if the heavy metals are transformed wholly or in part as there come about many bubble formations in the concrete in spite of the fact that air has not been added.