What is the difference between high strength concrete & high performance concrete?
High-performance concrete (HPC) is concrete that has been designed to be more durable and, if necessary, stronger than conventional concrete. High-strength concrete is defined as having a specified compressive strength of 8000 psi (55 MPa) or greater. The value of 8000 psi (55 MPa) was selected because it represented a strength level at which special care is required for production and testing of the concrete and at which special structural design requirements may be needed.
High-performance concrete (HPC) is concrete that has been designed to be more durable and, if necessary, stronger than conventional concrete. High-strength concrete is defined as having a specified compressive strength of 8000 psi (55 MPa) or greater. The value of 8000 psi (55 MPa) was selected because it represented a strength level at which special care is required for production and testing of the concrete and at which special structural design requirements may be needed.
"While high strength concrete is defined purely on the basis of its compressive strength, Mehta and Aitcin defined the high-performance concrete (HPC) as concrete mixtures possessing high workability, high durability and high ultimate strength.
ACI defined high-performance concrete as a concrete meeting special combinations of performance and uniformity requirements that cannot always be achieved routinely using conventional constituents and normal mixing, placing, and curing practice."
See https://theconstructor.org/concrete/high-strength-vs-high-performance-concrete/8617/
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