Tensile strength of concrete is found out using:
Correct Answer: C. Split tensile test
📈 Testing Tensile Strength of Concrete
Direct tension testing of concrete is impractical because gripping the specimen without introducing bending is very difficult. The standard indirect method is the split (cylinder) tensile test (IS 5816), where a standard cylinder is placed on its side and compressed diametrically. The vertical compressive load induces a nearly uniform horizontal tensile stress across the diametric plane, causing the cylinder to split.
Tensile strength is found using the split tensile test — option C.
Key takeaway
Split tensile test (IS 5816) → indirect measure of tensile strength. Compression test machine is used, but the specimen splits in tension across the diameter.