Concrete mixture for the manufacture of a concrete product for the energy dissipation in the case of impact stress

摘要

Concrete mixture for the manufacture of a concrete product with a shock-absorbing hollow space system, comprising:a component a:a hydraulic binder with a port country clinker proportion of 5 – 100 m -%, which is under the addition of water forms an alkaline pore solution;a component b:a rock particles, wherein a grain bulk density of the rock particles are in the range of from 0,1 – 7,5 kg / dm³ and a grain size of the rock particles are in the range from 0,01 – 64 mm;a component c:a pores additive, wherein the pores of which the addition is selected from:a component c1:a pore-forming agent selected from a gas former; and / or an air entraining agents and / or a foaming agent;and / ora component c2:Hollow microspheres, comprising a micro hollow ball casing and a of the microwave cavity enclosed hollow ball casing;the hollow space system cavities of the rock particles and hollow spaces of the cement matrix, and a porosity of the concrete product between 15 and 90 volume -% is.