Apr 3, 2009 · Agree that blinding concrete (or what I call a mudmat) is a good idea many times for ease in setting formwork and steel, to prevent damage of the founding soil in case of rain or just …

Jan 24, 2016 · Good day, the contractor is proposing to remove the blinding concrete under the slab on grade and replace it by a layer of tout venant of 200mm thickness. After compaction, he will place the …

Nov 22, 2003 · I have a question of all you experienced structural (foundation) and geotechnical engineers. For the project on which I am currently working, there are two grades of PCC (plain …

Oct 21, 2013 · Hello all. Can anyone advise the different uses of blinding concrete, polythene sheeting and sand as underlays for various concrete structures poured on ground? This is for Australian …

Apr 1, 2002 · Hi, I'm curious why we have to put the blind concrete underneath the spread footing or ground slab? It jsut for protect the debris from soil to mix with fresh concrete. Is it neccessary to have …

Feb 29, 2008 · The flat surface is good, as you would suspect, to ensure proper steel placement. You could use a good 19mm crushed stone in lieu of blinding concrete (mud slab). Some specify to put a …

Oct 4, 2004 · The flocculation occurs in the bed, however, your problem is the flocc forming too soon, forming large flocc and collecting on the media surface and blinding it. You want to be looking for a …

Oct 31, 2017 · hello for the concrete blinding dimensions under isolated footings, does it need to be same size of the footing or bigger. in our case we have a 30cm blinding since the hard rock is at …

Jun 24, 2013 · Blinding is doing a different job to cover. It's simply there to provide a decent working surface nothing else. Cover implies protection for reinforcement, which blinding might seem to …

Nov 14, 2019 · I wold second MIStructE's opinion that blinding should not provide any shear resistance. These concrete mixes usually lack the large aggregate that provides shear resistance due to interlock.