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- Blinding - Concrete Engineering general discussion - Eng-Tips
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 construction (workmen) damage You could use a good crushed stone layer as well
- Blinding Concrete - Specified Grade - Eng-Tips
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 cement concrete) specified for blinding mats underneath all foundations One is called M10 (requiring 10MPa cube strength - 8MPa cylinder strength)
- Blinding Media Filters - Water treatment and distribution - Eng-Tips
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 steady almost linear headloss buildup on the filter indicating deep penetration into the bed rather than any sudden increases in headloss indicating blinding
- concrete blinding dimensions - Structural engineering general . . .
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 60cm below but the foundation top level is fixed do i need to have the blinding size bigger than the foundation by 30cm (to follow the thickness)and is there anything
- Blinding - Concrete Engineering general discussion - Eng-Tips
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 provide, but given there'll be a cold joint between the blinding and the structural concrete waiting to allow moisture to get in I wouldn't rely on it in any way
- Blind thickness Calculation 2 - Eng-Tips
Is there a formula for calculating the thickness of a piping blind (i e Flange, Fig 8, line blind, etc) ? If so, what is the appropiate formula for each type? Carlos
- Blind concrete ? - Structural engineering general discussion - Eng-Tips
In some cases, e g under slabs, it is possible to use polythene film instead of blinding concrete; particularly where mesh rebar can be rapidly place in position and the excavation will only be open for a very short time before the structural concrete is poured WARNING:
- Positive Isolation - Blinds - Valve engineering | Eng-Tips
Isolation of equipment shall be accomplished by blinding or disconnecting and disaligning Where equipment, operations or conditions will not allow blinding or disconnecting and disaligning, double blocking with a bleeder (located between the block valves) may be utilized to isolate pipelines or equipment under the following conditions:
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