The marginal fit of monolithic zirconia crowns may be affected by different cement space parameters set in the CAD software.
In the proposed formula, the strength of cement-treated soil is given by volumetric solid content, strength increase coefficient due to cement, exponential parameter N representing the effect of the void structure of soil and cement content in respect to the solid material of soil.
It has also shown that the mix parameters (cement content, water-to-cement ratio, tailings fineness and density) affect the performance properties of CTB.
The effects of liquid phase concentration and the liquid/powder ratio of the cement, as input parameters, have been investigated on the setting times and the mechanical strength of the cement, as output parameters.
Based the effects on the comprehensive consideration of wellbore temperature change, annulus pressure, and performance parameters of cement sheath and casing, and then established the calculation method of cementing force, lifting force, and wellhead growth.
In view of these problems, a series of studies were carried out specifically on the theoretical basis of cement sheath sealing mechanical parameters, oil-displacement preflush improving the interface cementation quality, toughness set cement satisfying large-scale fracturing requirements and cementing technology conducive to the wellbore integrity.
For each recycled specimen, studied parameters consisted of cement type, cement content, test temperature and curing time.
In this paper the parameters of cement grout affecting rheological behaviour and compressive strength are investigated.
Failure modes, deformational moduli and strength parameters of cement mortar, geopolymer, their interface, and the composite specimen, are thus obtained.
Setting time and early strength of cement are two key parameters to the early hydration of cementitious materials.
