Editing Pykrete (section)

==Mechanical properties==
The durability of pykrete is still debated. Perutz has estimated a crushing strength value of around {{convert|1100|psi|MPa|abbr=on}}.<ref name=perutz48/>

A September 1943 proposal for making smaller pykrete vessels included the following table of characteristics:<ref name="ADM 1/15677" >[[The National Archives (United Kingdom)|The National Archives]], ADM 1/15677 – Proposals and inventions of Mr Geoffrey Pyke; gravity propelled ball bomb, pykrete and power driven rivers.</ref>

{| class="wikitable" border="1" style="margin: 1em auto 1em auto"
|+Comparative properties of materials
|-
! width="150" | Mechanical properties
! width="75"  | [[Ice]]
! width="75"  | [[Concrete]]
! width="75"  | Pykrete
|-
| {{nowrap|Crushing strength &#91;[[Pascal (unit)|MPa]]&#93;}}
| align="right" | 3.447
| align="right" | 17.240
| align="right" | 7.584
|-
| [[Tensile strength]] &#91;MPa&#93;
| align="right" | 1.103
| align="right" | 1.724
| align="right" | 4.826
|-
| [[Density]] [kg/m{{sup|3}}]
| align="right" |  910
| align="right" | 2500
| align="right" |  980
|}