Mortar thickness under rsj steel plate

[gasbusters]

Hoping someone can advise.

5.8 meter rsjs will be sitting on steel plates that are 450mm x 100mm x 25mm thick.

The steel bearing plates are sitting on a mortar mix thats about 25mm thick, 1:3 cement/sharpe sand mix.

Is a 25mm mortar bed too thick or is this ok?

 

[Deleted member 174758]

In recent years I've only ever seen steels installed onto either engineer's blue brick (as a pad stone incorporated into the wall), high density concrete pad stone blockwork (again, as a pad stone incorporated into the wall - these can be bought-in or sometimes are cast on site) or installed directly onto a cast-in situ high density concrete pad stone (done shuttering for loads of them). Steel shims, or sometimes (rarely these days) slate packers are used to fully level the steel if necessary. Can't see that a mortar mix is going to be strong enough for the task, although I'll happily take correction on that.

 

[gasbusters]

In recent years I've only ever seen steels installed onto either engineer's blue brick (as a pad stone incorporated into the wall), high density concrete pad stone blockwork (again, as a pad stone incorporated into the wall - these can be bought-in or sometimes are cast on site) or installed directly onto a cast-in situ high density concrete pad stone (done shuttering for loads of them). Steel shims, or sometimes (rarely these days) slate packers are used to fully level the steel if necessary. Can't see that a mortar mix is going to be strong enough for the task, although I'll happily take correction on that.

Steel bearing plates will be sitting on this mortar mix. I was advised steel bearing plates are used a lot nowadays instead of padstones. But its the thickness of the mortar i cant find much info on

 

[gasbusters]

Tony1851 could you please advise on this mortar thickness issue?

 

[tony1851]

Tony1851 could you please advise on this mortar thickness issue?

OK.