a. Calculate the modulus of rupture for a 2.5 cm by 2.5 cm square concrete flexure beam with a span length of 45 cm if failure occurs 13 mm outside of the middle third at a load of 0.23 kN. [Ans: 6.05 MPa] b. A splitting tensile test was performed on a standard cylinder (150 mm by 300 mm); the cylinder fractured at 222 kN. Calculate the splitting tensile strength and the approximate compressive strength of concrete. [Ans: 3.14 MPa; 69.4 MPa] c. A concrete test cylinder (150 mm by 225 mm) fails at 500 kN in compression. Estimate the compressive strength of concrete. [Ans: 27.6 MPa]
a. Calculate the modulus of rupture for a 2.5 cm by 2.5 cm square concrete flexure beam with a span length of 45 cm if failure occurs 13 mm outside of the middle third at a load of 0.23 kN. [Ans: 6.05 MPa] b. A splitting tensile test was performed on a standard cylinder (150 mm by 300 mm); the cylinder fractured at 222 kN. Calculate the splitting tensile strength and the approximate compressive strength of concrete. [Ans: 3.14 MPa; 69.4 MPa] c. A concrete test cylinder (150 mm by 225 mm) fails at 500 kN in compression. Estimate the compressive strength of concrete. [Ans: 27.6 MPa]
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter11: Fracture And Fatigue
Section: Chapter Questions
Problem 11.4P
Related questions
Question
a. Calculate the modulus of rupture for a 2.5 cm by 2.5 cm square concrete flexure beam
with a span length of 45 cm if failure occurs 13 mm outside of the middle third at a load
of 0.23 kN. [Ans: 6.05 MPa]
b. A splitting tensile test was performed on a standard cylinder (150 mm by 300 mm); the
cylinder fractured at 222 kN. Calculate the splitting tensile strength and the approximate
compressive strength of concrete. [Ans: 3.14 MPa; 69.4 MPa]
c. A concrete test cylinder (150 mm by 225 mm) fails at 500 kN in compression. Estimate
the compressive strength of concrete. [Ans: 27.6 MPa]
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