aggregate cement ratio

time of transit

grading of the aggregate

all of above

time of transit

'vater-cement ratio

the air in the mix

size of aggregate

0.003

0.0003

0.00003

0.03

workability

strength

the effects of temperature variations

the unit weight

tcr - rcs = tct

fcr>fcs>fc.

fcr<fcs<fc>

fc5>fcr>fC.