Browse Forums Owner Builder Forum 1 May 19, 2011 7:32 pm I am currently building a new workshop (9.5m x 4m) and have already poured the strip footing according to council regulations however I have hit a hurdle. The plan is to build a standard stud wall on top of a lower (800mm high) concrete block wall and secure the stud wall via threaded starter bars (reinforcing rods) through the base plate and concrete blocks and epoxy them into the concrete. The challenge is that I had planned to use Adbri 90mm split face concrete blocks (100 series) however the 90mm blocks have only approx. 30mm holes, and they do not line up when stacked on top of each other, making it near impossible to locate the threaded rods in the concrete. Does anyone have any ideas on the best way to locate the threaded rods and or secure the structure to the concrete? Cheers Froudie Re: Building a stud wall on top of a lower concrete block wa 2May 19, 2011 9:47 pm Talk to your builder or engineer but I would have thought if starter bars secured the first course of blocks and then each course above was tied to the next/previous you could anchor the stud wall to the top course with rebar and epoxy. Building an Eden Brae Saville 27 http://karry327.blogspot.com/ Building thread https://forum.homeone.com.au/viewtopic.php?f=31&t=44247 Re: Building a stud wall on top of a lower concrete block wa 3May 23, 2011 10:23 am karry327 thanks for your reply. The idea of securing one layer of blocks at a time is certainly worth consideration, it does however introduce multiple points of failure which I would like to avoid if I can. I am currently chasing the Concrete Block Manufacturers to get some more detail however in general they are not really interested in being of assistance. I'll post an update if I get anywhere. Have a great day. Froudie Re: Building a stud wall on top of a lower concrete block wa 4May 26, 2011 9:09 am It looks like I have made some progress thanks to the Concrete Masonry Association of Australia and Adbri (in particular Wayne Holt and Boris Georgiou - thanks guys!). The compromise I have had to make it use smooth faced blocks which have a larger core (hollow) than the planned split faced blocks which only have round holes as cores. Although the cores in the smooth blocks are not parallel from top to bottom (which assists in the manufacturing process to remove the mould) there is only two of them and the lower part of the core can easily be enlarged with a couple of light taps with the bolster to make them large enough, in width and length, to facilitate the placement of the rebar. So I will now layout the location of the blocks on the strip footings, snap a chalk line or two and then drill holes (14mm for the 12mm threaded rods by about 200mm deep) and epoxy the threaded rods into the concrete using Ramset Ultrafix Plus (thanks to the advice given at the Ramset outlet in Chirnside Park Melbourne). The threaded rods will long enough to pass through the 4 courses of concrete blocks and the base plate of the wall (treated pine) and secured down with a nut and washer, tying the stud wall and structure above to the concrete strip footings for long time to come. I'll send an update when its done, fingers crossed. Hi there, We’ve recently had plans approved to add a 1st storey addition to our existing house for a growing family in Sydney. With the current cost of building… 0 5347 I am looking to design an entry door to a lower ground basement that has 2200mm between the external entry height to FFL of the ground floor. This door will provide an… 0 13002 |