GATE 2020 CE (CE2) – Question 29

Construction Materials · Concrete: constituents, mix design, short-term and long-term properties · 1 mark · Numerical answer

A 150 mm diameter, 300 mm long concrete cylinder fails at 157 kN in the IS 5816:1999 split tensile test. Find split tensile strength (MPa), to one decimal.

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Correct answer: 2 to 2.4

Explanation

Splitting tensile stress is $f_t=2P/(\pi DL)=2(157000)/(\pi150\cdot300)=2.22110$ N/mm². Rounded, **2.2 MPa**.