| 摘要 |
<p>A building material in granular form, the material being formed from a natural or artificial pozzolan and not more than 5% by weight of added lime (calculated as CaO), the granules being internally bonded by a pozzolanic bond including mechanical bonds formed by crystallites of etteringite and amorphous calcium silicate, calcium aluminate or calcium alumosilicate or a mixture of any two or more such calcium salts. Preferably, the pozzolan is pulverised fly ash.</p> |
