TABLE P6.36 Cylinder no. Water submergence (days) 3 4 5 3 7 14 28 Compressive strength of plain concrete (psi) Compressive strength of concrete with accelerator (psi) 1197 2437 3243 124 4120 3696 954 2272 3097 4122
TABLE P6.36 Cylinder no. Water submergence (days) 3 4 5 3 7 14 28 Compressive strength of plain concrete (psi) Compressive strength of concrete with accelerator (psi) 1197 2437 3243 124 4120 3696 954 2272 3097 4122
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Two batches of concrete cylinders were made with and without a calcium
chloride (CaCl2) accelerator admixture. Five cylinders were made of each
batch and submerged in water for different times before testing for compres-
sive strength and the results are shown in Table P6.36.It is required to do the following:
a. Using an Excel sheet, plot the relationship between curing time and
compressive strength of the two mixes on the same graph. Label all axes
and curves.
b. Comment on the effect of the accelerator on the compressive strength of
PCC at early and late ages.
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