pressure

EK514

In a fluid at rest no shear stresses can be transmitted. This means that the pressure is the same in all directions.

EK494

Primary consolidation is the change in volume of a fine-grained soil caused by the expulsion of water from the voids and the transfer of stress from the excess porewater pressure […]

EK490

Soils, especially silts and fine sands, can be affected by capillary action. Capillary action results in negative porewater pressures (suction) and increases the effective stresses.

EK489

The effective stress in a saturated represents the average stress carried by the soil solids and is the difference between the total stress and the porewater pressure.

EK488

Porewater pressure can be positive or negative.

EK305

If the footing is resting on a cohesive soil such as clay, the pressure under the edges is greater than at the center of the footing.

EK304

The clay near the edges has a strong cohesion with the adjacent clay surrounding the footing, causing the nonuniform pressure distribution.

EK303

The cohesionless soil tends to move from the edges of the footing, causing a reduction in pressure, whereas the pressure increases around the center to satisfy equilibrium conditions.

EK302

Distribution of pressure on cohesionless soil (sand) under a rigid footing.

EK274

Corrosion secondary cracks form when moisture containing deleterious agents such as sodium chloride, carbon dioxide, and dissolved oxygen penetrates the concrete surface, corroding the steel reinforcement. The oxide compounds formed […]

EK32

When a body is in a liquid the surface of the body is subject to the same pressure everywhere, irrespective of the material. The pressure acts perpendicular to the surface, […]