Research Highlights

Supplementary Cementitious Materials

Nature:

Mineralogy-Shape-Median Size (µm)-Surface area (m2/kg)-Specific Gravity-Bulk density (kg/m3)-Nature of reaction -Color

Chemical Composition:

SiO2 -Al2O3-Fe2O3-CaO-SO3-MgO-Na2O-K2O-LOI

Chemical reactions:

Pozzolanic Reactions- Consumption of calcium hydroxide- Hydration- Pore Solution Composition.

Microstructure:

 Pore structure-Interfacial transition zone (ITZ)

Fresh concrete:

Water Demand-Dispersion-Bleeding-Air Entrainment-Setting time-W/C ratio.

Hardened Concrete:

Compression- Tensile- Flexural- Cementing efficiency concept- Effect of Temperature- Modulus of Elasticity- Shrinkage-Creep.

Durability:

Permeability - Corrosion: Chloride-RCPT, Carbonation-Freezing and Thawing-Alkali-Silica Reaction (ASR)-Sulfate attack-Salt attack-Ettringite formation-Abrasion-Erosion-Cavitation.