When to remove acrows

[furpho]

4m rsj went in Tuesday and the 10mm gap between steel and existing brickwork above was packed with 3:1 sharp sand:cement (very dry, just clumping). Also banged in some slate where I could get a tight fit.

This is indoors so heated each evening. The mortar felt as hard as a rock 24 hours later. It’s now Sat morning so it’s been 80 hours. Am I ok to remove Acrows?

 

[^woody^]

If you've packed with slate you can remove props straight away.

 

[furpho]

Thanks Woody but the slate isn’t everywhere so I’d prefer to be confident the mortar has properly set by now

 

[mrgobby]

If it's not set by now it's not going to so probably best to find out sooner rather than later and it's not going far - 10mm

 

[furpho]

Tada!!

 

[mrgobby]

Yay it stayed up!

 

[^woody^]

Tada!!
View attachment 185936

Post another pic in around three hours time.

 

[furpho]

God I hope you’re kidding!! I’m confident but it’s still a big task for an amateur.

Drinking tea and giving it a long hard stare

 

[mrgobby]

Try squinting too, that's semi pro.