The world experience of implementation and the uniqueness building alkaline composites prove prospects relevance development clinker-free technology. formulations activation binders based on fine powders aluminosilicate nature will allow obtaining new effective high-quality products. paper investigates effect active microsilica kinetics strength gain, changes in density pore space cement stone,...

Zirconia is a high-strength ceramic material that expands the design and application possibilities for all-ceramic restorations dental implants. To enhance bonding of zirconia to tooth substrates osseointegration implants with surrounding bone, surface should be modified by treatment. Unfortunately, effective treatment sintered difficult. Surface presintered may less difficult; thus, effectiven...

Colloidal silica bonded refractory castables have been developed recently. It was found that colloidal silica is one of the best binders can substitute other binders such as cement in No Cement Castable (NCC) and Ultra Low Cement Castable (ULCC) refractories. Also composition of colloidal silica with appropriate additives resulted in a gel form which makes the initial strength. Moreover, the na...

with many years of construction and application of common concrete, researchers have always been searching for a better composition. one of the notable ideas for achieving such a composition is using recycled materials. one of the materials which is suitable for environment and constant development is damaged tires .for studying mechanical properties of concrete containing tire particles, a ser...

Cement is as an adhesive that binds pieces of solids together. In this research, the main materials used in construction such cement, concrete and steel are described. After described to what extent nanomaterials silicon, titanium nanoxide, polypropylene nanofibers, microsilica nano calcium carbonate do compressive strength cement increase prevent corrosion erosion. Polypropylene nano-fibers ad...

In this study, conventional concrete is developed using recycled aggregates with micro silica (silica fume) as admixture. The mix designed for target strength of 25 MPa. Coarse aggregate were partially at 15 %, 30 % and 45 %. relative parameters influencing the studied in terms content respectively. Test results reveled produced 45% tend to reduce by 12% whereas addition fume (10%) enhances com...