Development of Advanced Composite Construction Materials and Methodologies for Assessment of Durability Related Parameters
Devlopment of Ultra high Performance Concrete
- Development of Mix design with optimal curing regime and steel fiber volume to attain compressive strength of more than 200 MPa for UHPC
- Experimental studies to characterize and develop analytical models for UHPC to study its properties under uniaxial loading, tension, compression bending, and impact.
- Development of structural sections with UHPC
Devlopment of Ultra high Performance Concrete as a retrofitting material
- Design of precast UHPC strips and methodology to adhere these strips with pre-damaged reinforced beams.
- Flexural testing of damaged reinforced beams strengthened with UHPC strip of different thickness
- Monolithic failure of composite strengthened beams
- Application of Acoustic emission to understand damage and crack propagation at different loading levels for undamaged and retrofitted beams.
- Crack classification and damage quantification by suggesting damage zones using AE parameters.
- A new recommendation for probabilistic based crack classification using AE parameters for RC beams
Development of Geopolymeric Cement Concrete
- Embodied energy of PCC>600 KWh/m3
- 1 ton Cement = 1 ton CO2
- Need for alternate Binder
- No Portland Cement
- Eco-friendly (low ‘embodied energy’, low ‘embodied CO2’)
- High strength
- Fast setting
- Turnover time-1day
- No water curing
- Highly durable
Outcome
- Development of non Portland cement concrete
- Fly ash as sand replacement in concrete
Development of Geopolymer Cement Concrete
- No OPC low embodied energy,; co-friendly low CO2 emission
- Alkali activation of industrial wastes; High strength, Highly durable
- Ambient/heat curing, No water curing; Fast setting, Turnover-1day,
- Investigations on the Behaviour of Reinforced GPCC under Flexure, shear, compression and bond
Studies on Geopolymer Concrete Structural Elements
Failure Modes of Geopolymer Concrete Compression Members
Shear Performance of Geopolymer Concrete T- Beams Geopolymer Concrete Beam under flexural loading