Reducing the consumption of cement with simultaneous utilizing waste materials as cement replacement is preferred for reasons of environmental protection. Blended cements consist of different supplementary cementitious materials (SCMs), such as fly ash, silica fume, Ground Granulated Blast Furnace Slag (GGBFS), natural pozzolans, etc. These materials should be chemically activated to show effec...

Binder using ground granulated blast-furnace slag with specific surface area 20000cm2/g (GGBS20000) for ultra-high strength concrete were examined. As a result, it was possible to improve flowability of mortar by use proposal binder GGBS20000. And GGBS20000 also had the effect on improvement early-age mortar. However, which used silica fume more effective than produce high long-term strength.

This study comparably assessed the pozzolanic effect of silica fume (SF) and ground rice husk ash (RHA) as supplementary cementing materials on the properties of blended cement pastes and concretes. A commonly commercial silica fume (SF) and locally-produced rice husk ash (RHA) samples with two finenesses (one with larger size than cement and the other with smaller size than cement) were used i...

The growing demand for high strength concrete [HSC] in the construction industry increases usage of cement, resulting environmental issues. Recent studies are showing that utilization cementitious materials can effectively reduce volume cement. In present study, ternary blended combinations were prepared using silica fume, and fly ash to attain HSC. Here, cement was partially replaced by fume [...

This study aims to produce Ultra-High-Performance Concrete utilizing locally available material. The experimental includes silica fume with rice husk ash in combination steel fibers. Various trials were made using different volumes of local materials and fibers UHPC. Different properties evaluated, such as compressive strength, tensile Scanning Electron Microscopy (SEM). Results show that UHPC ...

Recycling or utilization of industrial waste is becoming more popular as people become environmentally conscious. Silica fume a by-product the smelting process in silicon and ferrosilicon industries. This study examines mechanical behavior steel tubular composite column filled with conventional concrete silica experimentally under axial compressive loading. For study, variability tube thickness...

Several previous investigations and studies utilized silica fume (SF) or (micro silica) particles as supplementary cementitious material added a substitute to cement-based mortars their effect on the overall properties, especially physical strength mechanical properties. This study investigated impact of inclusion residual compressive strengths microstructure properties exposed severe condition...