What is flowable fill? Discuss its ingredients and its advantages. Two 150 mm * 300 mm concrete cylinders with randomly oriented steel fiber contents of 0 and 2% by weight, respectively. After curing...


What is flowable fill? Discuss its ingredients and its advantages.



Two 150 mm * 300 mm concrete cylinders with randomly oriented steel


fiber contents of 0 and 2% by weight, respectively. After curing for 28 days,


the specimens were subjected to increments of compressive loads until failure. The load versus deformation results were as shown in Table P7.45.


Assuming that the gauge length is the whole specimen height, determine the


following:


a. The compressive stresses and strains for each specimen at each load


increment.


b. Plot stresses versus strains for the two specimens on one graph.


c. The initial modulus of elasticity for each specimen.


d. The ultimate strength for each specimen.


e. The strain at failure for each specimen.


f. Toughness. Curves may be approximated with a series of straight lines.


g. Comment on the effect of adding fiber on the following:


i. Modulus of elasticity


ii. Ultimate strength


iii. Ductility


iv. Toughness



May 19, 2022
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