Blinding | Eng-Tips
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 …
underlays to concrete: blinding, poly sheet, sand | Eng-Tips
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 …
Blinding Concrete - Specified Grade | Eng-Tips
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 …
blinding concrete removal | Eng-Tips
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 …
Blind concrete ? | Eng-Tips
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 …
concrete blinding dimensions | Eng-Tips
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 …
Unreinforced concrete shear | Eng-Tips
Nov 14, 2019 · I wasn't sure whether the OP was referring to shear strength (which is defined for plain concrete under US code) or the angle at which the cracking would take place. I'm not familiar with …
Geotextile/filter fabric/filter cloth as a blinding layer under a cast ...
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 …
Set times of concrete | Eng-Tips
Mar 13, 2002 · Set and cure times are also reflected in minimum times required before striking the form work. There is a requirement especially for marine structures to prevent the ingress of water during …
Questions about Mud Slabs | Eng-Tips
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 …