Does anyone know what refractory is costing, supply and install per cft, per bag. Anything would help. We are trying to set up a budget for casting about 1400 cft of material. 600 to be gunited and 800 to be cast-in place.
We are trying to set up a budget to install approx. 1400 cft of refractory. 800 cft to cast and 600 clean cft to gunite. Does anyone know what this goes for (supply and install) per cft, per bag, whatever.
Can anyone suggest a good book, reference material etc., to deal with calculating moment, shear, etc as a result of point loading a concrete slab. I just realized I've only ever dealt with beams. Even my old engineering texts have alot on beams but nothing about concentrated loads on slabs.
Used a similar product from Sika. Problem was after a short time, the metal fibers rust and leave a dark orange colour. Client was not pleased since it really darkened the warehouse.
We're looking at hanging a monorail from from the underside of a concrete slab. I just realized after all my years as a professional engineer, I've not dealt with anything other than beams. Can anyone suggest any books to help determine moments created by point loads on slabs?
We are considering replacing 6x6 6-6 wwm with fibre mesh in an office slab on grade. We are concerned only with crack control. Does anyone have information on the performance of fibre mesh.
We have a 60' dia tank. From the base working up is a concrete base slab, welded steel tank bottom, 3' of granular fill and a 6" slab on a 30 degree incline toward the centre of the tank.
At approx. 17' out radially from the centre of the tank, the concrete slab has bulged up about 2'...
Thank you to everyone.
As an engineer who has been in construction for many years, I agree with DRC1 in that a 1000lb diesel hits hard and deep. We took FOCHT3's advice and requested another proctor, and guess what? The proctor value was not 2350 as originally presented, it was 2140. Right...
We are working with a crushed rock from a mine site as a subgrade and the requirement is 98% compaction. The proctor values show 8% optimum moisture and density of 2350 kg/cum. We sat in one area for three minutes with a 1000lb diesel tamper and the density went from 89 to 89.5, a long way...
I don't Metalguy however that's a good and obvious question which I hadn't thought of until now. I will test it.
Kenvlach, this is not effluent and is NOT discharged directly into the environment. It gets recycled back into the process after it enters the trench.
Sodium Hydroxide PH is 14 and 93% Sulphuric is 0.3. I suspect a "Bad" and a "holler back" are consistent with what I thought but wasn't sure until now.
Thanks to both of you.
My specialty is concrete so if I can ever be of help just ask.
Not sure if such a steel exists but here goes. We have a trench drain in a concrete slab. Draining into the trench is 50% Sodium Hydroxide(Caustic) and 93% Sulphuric Acid. Rather than form a ledge into the concrete to carry the trench grating, we're considering installing angle iron with...
