The handrails to the concrete stairs and landings on the previous page were all fixed by the supplier. He had his own diamond core drill that cut a 65mm (from memory) hole in the concrete. This way he measures up after the concrete work is finished, and he has the freedom to change ...
The new industry standard for measuring concrete RH is the in situ concrete relative humidity test as described in the ASTM F2170 standard test method. It involves drilling a hole into the concrete and using an electronic relative humidity probe to directly measure the moisture in the slab. ...
Branden Shank, the technical support specialist for Curries Doors, says that if you can drill a hole into concrete and affix anchors, the installation process is simple. Effectiveness: StormPro was tested at Texas Tech's WISE Center in accordance with FEMA 361, an objective...
To start the cut, drill pilot holes on the inside corners of the portion that will be removed. Then insert a jigsaw into the holes and cut from hole to hole along the edge marks. Make sure your cut lines are straight so you won't have large gaps between where the horizontal and verti...
Drill Step 1. Dig the Root Cellar Hole and Add Your Concrete Footer Firstly, begin by digging the 8 x 8-foot hole in the ground that will be your root cellar. If you do not have the time or workforce to spare, consider hiring a backhoe operator to dig the hole for you. ...
The posts should be fastened to concrete slab/footings using approved steel anchor bolts. Use a 4-foot level and temporary bracing to hold posts in a plumb, upright position during construction. In the project shown, once the posts were plumbed they were anchored to the under-deck supports. ...
When all eight footings are marked the template can then be removed to allow for hole digging. Dig all holes 500mm deep. Before any concrete work commences, make sure all your posts are in a handy position. The posts will be sawn treated pine, 100mmx100mm and 2800mm long, i.e. sligh...
The best way to do this is to use theASTM F-2170 concrete testing method, which uses a thermo-hygrometer with in-situ probes to check the moisture conditions deep in a concrete slab. Why not use a moisture meter? Aside from there being no true concrete moisture testing scale (because dif...
Lay the frame over the ground so the hole sits in the center of the frame opening. Pound one piece of rebar into the ground on the outside of the frame to keep the frame in place while the concrete cures. Mix enough concrete to fill the frame opening to the top. ...
After 24 ours, the slab was webbed with cracks. The expanding agent breaks apart the concrete using a quiet and controlled method, without a bunch of racket or flying shards of rock—perfect for removal of deteriorating porch steps, old footings and more. ...