Hi.
I am wondering if there is a clause forbidding screwing more than once in a same hole with wood screws or lag screws. My feeling is that it will weaken the connection, but I can't find anything in the Canadian Standard CSA O86. Maybe in the American Standard?
I see that it is not written to take into account, but this is the point for this thread... Friction angle is a reality and until it starts moving, it can participate - I think. I'll talk to a Professor about that.
Hi,
When I look into Overturning stability for Retaining walls, I see that the weight of concrete, other weights above it and the soil above the footings are considered for countering the Overturning moment.
I wonder if it would be acceptable to also consider the soil above the footings in...
I struggle on how to properly connect things to an existing Open-web steel joist. Not for all scenarios. But definitively for connections to the bottom chord, when diagonals are made of a continuous bent rod.
I know people use clamps, either a C-Clamp or a in-between angles plate and bolt. And...
The thing is that I've always seen efflorescence as a long process and in these sites, it comes fast. Could it be that it is something else? And is it the result of an important humidity problem?
Hi,
I have two occurences where some efflorescence was found on a basement slab on grade. Each time, the efflorescence was located along the residual glue joints of an old vinyle flooring installed directly against the slab. The thing is that it seems to migrate thru the slab rapidly and it...
