| 摘要 |
<p>The invention provides a ductile ultra high performance concrete which comprises in relative parts by weight:
100 of Portland cement;
50 to 200 of a sand having a single grading with a D10 to D90 between 0.063 and 5mm, or a mixture of sands, the finest sand having a D10 to D90 between 0.063 and 1mm and the coarsest sand having a D10 to D90 between 1 and 4mm;
0 to 50 of a particulate pozzolanic or non-pozzolanic material having a mean particle size less than 15µm;
0.1 to 10 of a water-reducing superplasticizer;
10 to 30 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.</p> |
