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 …

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 …

Jun 11, 2018 · Blinding is a common term in building structures. It is also called a working mat. The purpose is to provide a hard, regular surface for placement of reinforcement and concrete. …

Jul 11, 2017 · 2. Ok, if the blinding layer is still required. Is it acceptable to use geotextile/filter fabric/filter cloth instead of blinding concrete layer under the cast-in-place retaining wall base on top of the …

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 …

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 …

May 2, 2005 · Hi, We have a tank farm where aviation turbine fuel ( ATF) or jet fuel is stored in the refinery. "Hammer blinds'are being used for positive isolation which will isolate the tanks from the …

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 …

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 …

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 …