Therefore, water infiltration could induce failure by weakening slopes via reduction in suction and strength [16, 26, 29].
The contributions of cement hydration, carbonation, pozzolanic reaction, and suction to strength development under the drying condition were then quantitatively analyzed.
Theoretically, the suction force Fsuction of a perfect suction cup, disregarding other adhesive interactions than suction, is given by the contact area Acontact and the pressure difference Δ P caused by the suction effect: 1 Consequently, the pull-off strength of a perfect suction cup is directly proportional to the pressure difference inside the contact area and outside the suction cup.
The cuffs are made of sturdy neoprene and Velcro with industrial strength suction cups that can easily adhere to a shower door or wall tiles.
In the present paper, a kinematic theorem of unsaturated soils is established with a unified effective stress employed to represent the matric suction relied shear strength.
The engineering properties of the fired samples, such as density, water absorption, open porosity, water suction and compressive strength, with and without the GSW, were determined.
In this paper, the contribution of osmotic suction to shear strength of unsaturated soils is investigated through unconfined compression tests on three series of compacted soil prepared using distilled water and sodium chloride solution.
The effect of adding these wastes on the technological behaviour of the brick was assessed by linear shrinkage, water absorption, bulk density, suction absorption, compressive strength and scanning electron microscopy (SEM).
The coupling between the mechanical and the hygroscopic behaviour is considered by the concept of effective stress for unsaturated soils, in order to reproduce the effect of suction on the strength, the stiffness and the volumetric variations of the rammed earth.
For example, limpets use a glycoprotein glue and achieve high adhesive strengths when stationary at low tide, but suction (achieving lower adhesive strengths) when moving around underwater at high tide [ 109].
