ULTRA-HIGH-STRENGTH CONCRETE REINFORCED WITH STEEL FIBRES

摘要

The invention relates to ultra-high-strength concrete reinforced with steel fibres, including: at least one CEM I category Portland cement in a proportion of 600-800 kg/m3, having a minimum compression strength of 52.5 MPa after 28 days; aggregate in a proportion of 900-1300 kg/m3; added reinforcement fibres, including at least one steel fibre, in a proportion of 150-210 kg/m3; fillers, including natural calcium carbonate and nanosilica, in a proportion of 25-45 kg/m3; a superplasticising additive made from polycarboxylates in a proportion of 45-55 kg/m3; and drinking water for mixing, in a proportion of 125-160 kg/m3.