assignment of pcc deisgn 1 the field mix proportions using the data be
Question
Assignment of PCC deisgn
1)The field mix proportions using the data below:
Concrete is used for pavement-mild exposure
Specified compressive strength of concrete = 3,000 psi
Cement: Type I, no air-entrained mixture
Nominal maximum size of coarse aggregate = 1.0 in.
Items measured
SG of CA
MC of CA
Abs. % CA
SG of FA
Dry-rodded weight of CA
MC of FA
Abs.% FA
Fineness modulus of FA
Values
2.65
2.1%
0.9%
2.68
1001b/ft³
3.0%
0.4%
3
2) The weights of the materials (cement, CA, FA and water) for a batch
producing three cylinders (6"x12") (assume with a margin of 30%)