| 摘要 |
The invention concerns a concrete obtained by mixing water with a composition comprising: a) a cement, b) ultrafine elements with pozzolanic reaction, c) granular elements, d) cement additives, e) an amount of water E added to the mixture, f) a dispersing agent, whereof the constituents (a), (b), (c), and (d), expressed in volume, satisfy the following relationships: ratio 1: 0.50 </= [(a)+(b)+(d)]/c </= 1.10; ratio 2: 0.40 </= [(b)+(d)]/(a) </= 0.80; ratio 3: 0.10 </= (b)/(a) </= 0.30, and a water/cement weight ratio W/C </= 0.30.
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