| 摘要 |
<p>Materials with exceptional shock attenuating properties are chemically bonded ceramics having densities that range from 30 to 160 lb/cubic foot (0.48 to 2.56 g/cc) and porosities of 20% to 80%. The materials are chemically bonded ceramic composites based on Portland cement, silica fume, various hollow fillers, and may include a dispersing agent, any of a variety of fibers and water.</p> |
