Concrete Technology PPTs - CivilDigital - Home | New Generation Concrete, Corp.
Concrete which is subjected to compressive. stresses by inducing tensile stresses in the. reinforcement. Attributes. Concrete strength is usually 5,000 psi at 28 days. and at least 3,000 psi at the time of. pre-stressing. Use hardrock …properties of concrete-–setting and hardening, strength, and dimensional stability-–depend primarily on calcium silicate hydrate. It is the heart of concrete. As concrete hardens, its gross volume remains almost unchanged, but hardened concrete contains pores filled with water and air that have no strength.