Non-destructive tests, such as the rebound hammer test and penetration resistance test, can be used to determine the strength of concrete in an existing …
When considering the tensile strength of concrete, even discounting variables like aggregate to reduce heterogeneity, the measured tensile strength is a …
As fresh cement paste sets, it transitions from a fluid state to a solid mass, entrapping water in various forms, such as gel water, capillary water, and …
Capillary pores are considerably larger than gel pores, and various pore sizes exist within the hardened cement paste.
In conditions of partial hydration, …
The water-cement ratio, which is the weight of water to that of cement in a concrete mix, affects all favorable characteristics of concrete.
In fully …
The aggregate-cement ratio is the weight of the total aggregate to that of cement in a concrete mix.
A higher aggregate-cement ratio results in a concrete …
The transition zone, found where the aggregate meets the cement paste, is more porous and, as a result, weaker than hydrated paste beyond the transition …
The relationship between concrete's tensile and compressive strengths is not directly proportional but closely related.
Tensile strength grows slower …
In concrete, fatigue can lead to two distinct forms of failure. The first occurs under a consistent load or one that increases gradually; this is referred …
Consider driving a concrete pile into the ground with impacts or concrete foundations for machinery that endure sudden loads or unintentional impacts on …
Consider a reinforced concrete beam. Steel bars are strategically positioned where tensile forces occur, and concrete resists compression.
Steel is used …
Fiber-reinforced concrete is made of hydraulic cement with fine or coarse aggregates, incorporating separated, non-continuous fibers.
These fibers can be …
Under a load, a beam experiences compression on one side and tension on the other. Steel reinforcement resists the tension forces in a reinforced concrete …
Near-field blast load measurement presents an issue to many sensor types as they must endure very aggressive environments and be able to measure pressures …
The traditional wet hand lay-up process (WL) has been widely applied in the manufacturing of fiber composite laminates. However, due insufficiency in the …
