A5019099729- Advanced Cellulose Research Studies
- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Fire effects on concrete materials
- Natural Fiber Reinforced Composites
- Innovations in Concrete and Construction Materials
- Lignin and Wood Chemistry
- Electrospun Nanofibers in Biomedical Applications
- Additive Manufacturing and 3D Printing Technologies
- Radiative Heat Transfer Studies
- Thermal properties of materials
- Material Science and Thermodynamics
- biodegradable polymer synthesis and properties
- Microbial Applications in Construction Materials
University of Alberta
2016-2024
Portland cement concrete (PCC) is now second only to potable water in per capita consumption. And notwithstanding its numerous benefits, itself responsible for between 4 5% of the world’s manmade greenhouse gas emissions. In this context, geopolymer a promising alternative, wherein binder replaced entirely by supplementary cementitious materials triggered alkaline activators. Relatively little known on fracture response system, especially when exposed extreme temperatures. The study reported...
The thermal conductivity and specific heat capacity of paste concrete prepared with alkali-activated fly ash were investigated. Along a reference plain mix, two other mixes reinforced blend steel polypropylene fibres to examine the role fibre reinforcement on constants. mixtures exposed range extreme temperatures in sub-zero elevated regimes, from −30°C 300°C, for duration 2 h. constants measured using transient plane source method hot-disc analyser system. results showed that there was no...
HIGHLIGHTS• NFC can increase the compressive strength of cement pastes by up to 59%.• degrades in pore solution mortars after 60 days curing;• degradation reduces tensile and mortars;• mitigate effects alkali-aggregate reaction fibers act as a "stress reserve" expansive mechanisms caused AAR.
Cellulose nanofibres (CNFs) have high water-retention capacity, which can be channeled to improve the rheology of fresh cement paste. This study examines effect 0-1.2 vol.% fraction dry CNFs, prepared with high-carboxyl content, on two series pastes; one without superplasticizer (SP) and other a polycarboxylate-based SP that was adjusted in dosage keep efflux time equal reference Controlled shear-rate experiments were performed using rotational rheometer vane spindles obtain flow data used...
Processing cellulose from 4-methyl morpholine n-oxide (NMMO)-water solutions is a completely circular route that produces biodegradable fibers or films while recovering reusable NMMO [Guo, Y.; Cai, J.; Sun, T.; Xing, L.; Cheng, C.; Chi, K.; Xu, Li, T. The purification process and side reactions in the N-methylmorpholine-N-oxide (NMMO) recovery system. Cellulose 2021, 28(12), 7609–7617]. Despite proven success two-dimensional applications, challenges transitioning to three-dimensional objects...