| 摘要 |
<p>Dry composition comprises granulates with a density of 0.08-0.12 kg/L and maximum density (D m a x) of = 6 mm; cement; and block copolymer of poly(ethylene oxide) and poly(propylene oxide). Independent claims are included for: (1) a wet concrete composition comprising the dry composition and water; and (2) a preparation of the dry composition containing granulate, cement and block copolymer, comprising mixing the component of the dry composition.</p> |
