| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a porous concrete capable of inexpensively suppressing color unevenness caused by efflorescence. <P>SOLUTION: The porous concrete contains powder highly activated by finely pulverizing the mixture of lithium-containing ore and zeolite-containing ore to a particle size of 10 μm or less. <P>COPYRIGHT: (C)2013,JPO&INPIT |
