Quality control criteria for gas permeability testing of concrete structures

Abstract

AbstractCuring is a crucial process during the construction phase of concrete structures, as it plays a significant role in ensuring durability and strength. During the curing process, the concrete is kept moist to allow properly hydration and hardening. This process helps to prevent cracking, increase the concrete's compressive strength, and improve its resistance to weathering, abrasion, and other forms of wear. Therefore, it is essential that the curing process is carried out correctly to ensure the longevity and structural integrity of the concrete structures. The pore system within concrete plays a critical role in determining its durability and resistance to various types of degradation. One way to assess the quality and durability of concrete is by measuring its gas permeability. Gas permeability is a measure of how easily gases, such as air or water vapor, can pass through the concrete. If concrete has high gas permeability, it allows harmful substances, such as water, gases and chemicals, to penetrate into the concrete, causing damage and reducing its durability over time. Herein gas permeability testing is used for the evaluation of concrete curing quality.