| 摘要 |
<p>The present invention relates to a permeant block which uses an unfired binder and has the surface processed. The present invention comprises an unfired inorganic binder, an enzyme-treated mineral fiber, a mineral fiber, a pine resin, aggregates, sand, and a petroform extract, to have excellent strength not to be easily broken by a strong impact and have excellent water permeability not to be filled with water like rainwater.</p> |
