Patent ID: 8303708
Filing Date: 2012-11-06
Classification: C04B,Y02W,Y10T

Abstract:
1. A ductile ultra-high performance concrete which comprises in relative parts by weight: 100 parts by weight of Portland cement; 50 to 200 parts by weight of a sand having a single grading with a D10 to D90 between 0.063 and 5 mm, or a mixture of sands, the finest sand having a D10 to D90 between 0.063 and 1 mm and the coarsest sand having a D10 to D90 between 1 and 5 mm; 0 to 70 parts by weight of a particulate pozzolanic or non-pozzolanic material or a mixture thereof having a mean particle size less than 15 μm; 0.1 to 10 parts by weight of a water-reducing superplasticizer; 10 to 30 parts by weight of water; and 0.5 to 5% by volume relative to the volume of the hardened composition of glass fibres having an aspect ratio of 6 to 120.