Rajapriya Raja
@jerusalemengg.ac.in
Assistant professor, Department of civil engineering
Jerusalem college of Engineering
EDUCATION
PhD in Civil Engineering
M.E in Construction Engineering and Management
B.E in CIvil Egineering
RESEARCH, TEACHING, or OTHER INTERESTS
Civil and Structural Engineering, Building and Construction
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Sharanabasava Patil, Ramesh Bhaskar, Joseph Raj Xavier, and Rajapriya Raja
Elsevier BV
R. Raja and S. Kumar
Elsevier BV
Rajapriya Raja, Ponmalar Vijayan, and Sanjeev Kumar
Elsevier BV
Rajapriya Raja, Ponmalar Vijayan, and Sanjeev Kumar
Elsevier BV
Rajapriya Raja and Ponmalar Vijayan
Springer Science and Business Media LLC
Suman Kumar Adhikary, Žymantas Rudžionis, and R Rajapriya
MDPI AG
Excellent mechanical properties and chemical stability make carbon nanotubes (CNTs) some of the most promising nanomaterials that can be used in cementitious composites to improve their performance. However, the difficulty of CNTs’ dispersion within the cementitious structure still exists and thus prevents the homogeneous distribution of CNTs. The homogeneous distribution of CNTs within a composite structure plays an essential role that can have a positive effect on the mechanical performance of CNT-cement composites. This paper introduces the methods for the production of CNTs and provides useful information about the influence of CNTs on the flowability, mechanical performance, microstructural changes and hydration of cement composites. The influences of water-cement ratio, used surfactants and various doses of CNTs on the properties of cementitious composites were also studied.
R. Raja and P. Vijayan
Laterite, due to its wide availability and low cost, is considered as a societal building material in tropical and sub-tropical regions of the world. Excavation of the laterite leaves laterite stones as scrap which accounts for around 25-30%. These scraps being a hindrance for the further excavation of the laterite in the quarries can be crushed and used to meet the demand of fine aggregates in the construction industry. Performance indicators such as workability, compressive, split-tensile and flexural strength are measured to evaluate the suitability. M30 grade of concrete specimens were produced with these crushed scraps by replacing M-sand at the intervals of 25% ranging from 0% to 100%. Laterite replacement of 25% could enhance the performance after 28 days. Not limiting only to strength characteristics, its morphological features were also understood by conducting Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), X-Ray Diffraction (XRD) and Thermogravimetric analysis (TGA) for the optimum mixes.
Laterite, due to its wide availability and low cost, is considered as a societal building material in tropical and sub-tropical regions of the world. Excavation of the laterite leaves laterite stones as scrap which accounts for around 25-30%. These scraps being a hindrance for the further excavation of the laterite in the quarries can be crushed and used to meet the demand of fine aggregates in the construction industry. Performance indicators such as workability, compressive, split-tensile and flexural strength are measured to evaluate the suitability. M30 grade of concrete specimens were produced with these crushed scraps by replacing M-sand at the intervals of 25% ranging from 0% to 100%. Laterite replacement of 25% could enhance the performance after 28 days. Not limiting only to strength characteristics, its morphological features were also understood by conducting Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), X-Ray Diffraction (XRD) and Thermogravimetric analysis (TGA) for the optimum mixes.
R. Rajapriya and V. Ponmalar
Elsevier BV