| 摘要 |
<p>There is described an intumescent fire-proof element comprised of a plate having on the one side thereof rectilinear grooves allowing folding; a fire-prevention structure comprising between a skeleton and metal sheets, such an element cooperating with means directing the expansion towards a space through which the composition the element is comprised of, may escape outwards; and a method for preparing said composition by contacting a liquid alkaline metal silicate solution with a powder-like hydrophilic substance.</p> |
