F--K (place a UC where the dashes are) is a swear word, a cuss, a strong exclamatory word that is used in many ways and with many different purposes:
F--K would seem to come from the German word, ficken, meaning to strike.
A related word is the Middle Dutch, focken, which means much the same.
The same word in French is "foutre", so it seems there is a common root somewhere, perhaps in the Latin word, futuere, or the Latin word Facere which means to make or do.
Others have claimed it is a corruption of the word "fecund", which means fruitful.
There are some who claim it stands for "For Unlawful Carnal Knowledge", but this is a myth.
The word it is certainly not used in polite conversation. It is the slang term for having sex, and is considered very vulgar.
The word F*CK has been around since the 15th century. According to the alt.usage.English FAQ:
The Random House HistoricalDictionary of American Slang (Random House, 1994, ISBN
go fck yourself
It is pansexual nad it means someone who can like someone of any gender
it means you go to public school in florida. and you should say no
fc'=0.87 fck fc'= cylinder strength fck= cube strength
fc'=0.785 fck fck=1.273 fc' fc'=strength of cylinder fck=strength of cube
C20/25
fck you
Frederico Caldeira Knabben
The modulus of elasticity of concrete is denoted by Ec .Ec = 5000 sqrt fck as per IS standardswhere, fck- The compressive strength of concrete at 28 days in N/mm2 .
1. YOLO. :D ( you only live once ) 2. FISH ( fck t stuff happens ) 3. - don't fck w. the original
To calculate the target mean strength for concrete, you first determine the desired characteristic strength (fck) based on design requirements. Then, account for a specified margin of safety, typically using a standard deviation from previous test results to establish the target mean strength (fct). The formula commonly used is: Target Mean Strength = fck + 1.64 × standard deviation, where 1.64 corresponds to a 95% confidence level. This ensures that the concrete produced will meet the required strength with a high degree of reliability.
the compressive strength can be converted in to flexural strength by following formula of IS code 456-2000fcr=0.7^/- fck fcr= flexural strength fck= characteristic compressive strength in N/mm2