Hi all,
I'm trying to find methods or advice for mix design focused on the next day strength. Our concrete needs to be a C28 strength in about 18 hours so the beds can be detensioned and stripped. I'm working on what proportion of GGBS I could possibly aim to include but want to do some mix...
https://www.eng-tips.com/viewthread.cfm?qid=427296
I was very interested in this thread. I made this simple calculator have I correctly interpreted the Krey method?
I have set it up for using with PCC concrete so a friction angle of 15...
Hi all,
In my experience the reinforcement detailed in the stem of a retaining wall does not decrease with the distance up the wall.
The moment to be resisted is obviously decreased, i.e the moment about A is greater than the moment about B in the image attached.
Is my experience just very...
Regarding the Limiting conditions, does clause c imply that the minimum distance between the lintel and the floor above should be 600mm?
The other capture I have attached is from fig 4 of the document and clearly implies the distance could be less but it is not dimensioned.
What do people think the most interesting avenues of research are regarding pozzolanic materials or other methods to reduce the cement content and thus make 'greener' concrete are?
GGBS is obviously widely used but there is only so much steel production and relying on blast furnace waste won't...
Anyone have a guidance on setting tolerance limits for wire position in precast members?
At the moment my instinct is to set a tolerance allowing for increased effective depth in the section but not a reduction from the designed value.
