Civil and Structural Engineering, Environmental Engineering, Renewable Energy, Sustainability and the Environment
65
Scopus Publications
444
Scholar Citations
12
Scholar h-index
17
Scholar i10-index
Scopus Publications
Assessment of improved structural performance and degradation resistance in sisal fiber reinforced concrete incorporating eco friendly materials R. Abirami, S. P. Sangeetha, Huang Yanzhu, Xu Yong, Nasim Hasan Scientific Reports, 2026 The utilization of natural fibers in engineering applications necessitates a precise evaluation of their dimensional and mechanical properties. Researchers are exploring these fibers as potential construction materials for cement, mortar, and concrete. Sisal fibers may be used as a reinforcing ingredient in concrete because of their affordability, high strength-to-weight ratio, and recyclability. Sisal fiber-reinforced concrete composites offer advantages over conventional materials due to their enhanced mechanical strength, stiffness, and fatigue properties, which allow for greater flexibility in structural design. Additionally, sisal composites are more environmentally friendly and biodegradable than traditional materials, supporting sustainable building practices. This research explores Na 2 CO 3 treatment on sisal fiber’s resistance to deterioration and the longevity of sisal fiber-reinforced concrete are investigated. Sisal fiber was added at varying percentages (0.5% to 1.5% by cement volume) with a length-to-diameter ratio of 100 in M30 grade concrete, following IS 10262:2009 standards. The work included Fiber tensile strength testing, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and durability tests against chloride and sulphate attack. Results showed that 2% Na₂CO₃ treatment increased Fiber tensile strength from 254 MPa (untreated) to 332 MPa, improving Fiber–matrix bonding. SEM and EDX confirmed denser interfacial transition zones and higher Ca–Si hydration products in treated composites. Durability tests revealed that sisal Fiber reinforced concrete (S i FRC) exhibited lower strength loss under chloride and sulphate exposure compared to conventional concrete, with 1.25% Fiber addition showing optimal performance. These findings demonstrate that eco-friendly sisal Fiber, when chemically treated, can enhance strength and durability of concrete, supporting its use as a sustainable alternative to synthetic Fibers.
Reinforced concrete beam-column joints through sisal fiber reinforced—An integrated experimental and analytical study of enhancing cyclic behavior R. Abirami, S. P. Sangeetha, R. Divahar Structural Concrete, 2025 Beam‐column joints (BCJs) are the highest priority susceptible section of a seismically loaded reinforced concrete (RC) moment resistant structure. Recent earthquakes have resulted in significant damage to numerous structures, primarily attributed to insufficient ductility in building columns and connections. The objective of this study is to evaluate the effectiveness of sisal fiber reinforced concrete in BCJs under cyclic loading conditions. Twelve BCJs were designed according to the specifications outlined in IS 13920‐2016 to ensure structural stability. The fiber volume percentage in the concrete mix ranged from 0.5% to 1.5%, with increments of 0.25% of sisal fiber added to M30 grade concrete. The joints were subjected to a gradually increasing load, and the specimens were assessed by analyzing crack patterns, maximum load and deflection behavior, ductility factor, stiffness degradation, energy absorption, and damage index. The analytical simulation was conducted using ANSYS Workbench, a finite element software, to assess performance under cyclic loading conditions. The results from both experimental and analytical studies indicated that an addition of 1.25% sisal fiber content was most efficient, while 1.5% led to decreased concrete performance. The inclusion of sisal fiber in the BCJ area effectively reduced earthquake‐induced damage and cracks.
Brassica juncea and Medicago sativa as Phytoremediators for the Removal of Chromium and Arsenic S. Monisha, S. P. Sangeetha Nature Environment and Pollution Technology, 2025 This work aims to examine the effectiveness of phytoremediation, a process that uses Brassica juncea (Indian Mustard) and Medicago sativa (Alfalfa) plants to remediate contaminated soil with Cr and Ar. An economical and ecologically appropriate way to remove, immobilize, and degrade contaminants from soil and water is through phytoremediation. With this experiment, plants can grow in a controlled environment with different Cr and Ar concentrations in soil and the addition of organic compost. This entails evaluating the plants’ capacity to absorb metal, monitoring variations in the concentrations of metal in the plants’ roots, stems, leaves, and seeds, and looking into how organic matter affects the efficiency of phytoremediation. The findings showed that plants accumulated large amounts of chromium and arsenic across all experimental plants, but the highest accumulation was observed in the root system, which suggested that the plants were involved in the process of rhizofiltration. The roots pick up much more of the metals than the aerial of the plant, including stems, leaves, and seeds, thereby minimizing metal translocation to the parts of the plant that can be ingested by animals and, in turn, humans. This is a fundamental criterion for phytoremediation for assurance of a safe and effective process. Overall, the present study underscores the ability of phytoremediation in the remediation of heavy metal-polluted soils, especially under the use of organic growing media. It has made me understand the usefulness of this method for the effective and efficient cleaning of the soil in comparison with traditional methods, which could benefit the environment and future cost savings. Further research should be concerned with field-scale experiences and examine the potential of phytoremediation approaches in the range of environmental conditions.
Analysis of Plants, Helianthus annuus (Sunflower) and Gossypium herbaceum (Cotton), for the Control of Heavy Metals Chromium and Arsenic Using Phytoremediation Techniques S. Monisha, S. P. Sangeetha Nature Environment and Pollution Technology, 2025 Heavy metal pollution released into the surface environment poses a significant threat, being hazardous to both the environment and living organisms. Phytoremediation thus appears as a viable technique to address heavy metal pollution in soils impacted by industrial effluents. To identify the growth performance of sunflower and cotton seeds under various concentrations of arsenic and chromium present in the tannery industrial wastewater in the Chengalpattu region, and to identify the accumulation of Arsenic(As)As and chromium (Cr) in the roots, shoots, and soil of these plants. This paper examined the usefulness of sunflower (Helianthus annuus) and cotton (Gossypium herbaceum) in eradicating Cr and As-polluted soils originating from tannery wastewater. In this experiment, Completely Randomized Block Design (CBRD) testing was performed, and the samples were analyzed using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The accumulation of Cr in sunflowers was 120 mg.kg-1 in the roots and 25 mg.kg-1 in the above-ground parts. As accumulated to 85 mg.kg-1 in the roots and 15 mg.kg-1 in the above-ground parts. Similarly, cotton plants accumulated 90 mg.kg-1 of Cr in the roots and 20 mg.kg-1 in the above-ground parts. As accumulation in cotton plants was 100 mg.kg-1 in the roots and 30 mg.kg-1 in the aboveground parts. The study inferred that, in comparison to the other plants, the concentrations of Cr in sunflower roots were significantly higher, but cotton was found to have a better ability to take up As in the roots as well as in the aerial parts of the plant. It hence demonstrates the applicability of sunflower and cotton to support phytoremediation efforts sustainably within industrial environments to mitigate pollution and improve the quality of the soil.
Helianthus annuus (Sunflower) and Gossypium herbaceum (Cotton) as a Phytoremediator of Chromium (Cr) in Tannery Wastewater Indian Journal of Environmental Protection, 2025
Analysis of surface water quality in Kalingarayan canal by numerical modeling using Computational Fluid Dynamics (CFD) Environmental Engineering and Management Journal, 2021
GIS based seasonal variation of groundwater quality and its suitability for drinking in paravanar river basin, Cuddalore district, Tamil Nadu, India Indian Journal of Geo Marine Sciences, 2020
Bricks manufacturing with partial replacement of clay with Ggbs International Journal of Scientific and Technology Research, 2020
Aquaponics for food production in different growing beds VicePrincipal(Academics),Professor,Civil Engineering,AVIT,VMRF,Paiyanoor,Tamilnadu,India,, S.P. Sangeetha, P. S. Aravind Raj, Assco. Prof, Civil Engineering, AVIT, VMRF, Paiyanoor, Tamilnadu, India, R. Divahar, et al. International Journal of Recent Technology and Engineering, 2019
Impact of industrial wastewater disposal on surface water bodies in kalingarayan canal, Erode district Indian Journal of Ecology, 2019
Embedded based real time groundwater quality monitoring using solar energy and IOT Water and Energy International, 2017
Construction industry stepping towards positive-energy buildings a review International Journal of Chemical Sciences, 2016
RECENT SCHOLAR PUBLICATIONS
Assessment of improved structural performance and degradation resistance in sisal fiber reinforced concrete incorporating eco friendly materials R Abirami, SP Sangeetha, H Yanzhu, X Yong, N Hasan Scientific Reports , 2026 2026 Citations: 2
Green phase change materials for sustainable buildings: A pathway to low-carbon thermal management K Palraj, R Divahar, SP Sangeetha Journal of Energy Storage 140, 118953 , 2025 2025 Citations: 7
Performance enhancement of concrete reinforced with hybrid nano-materials: Insights into mechanical strength, durability behaviour and microstructural characteristics SP Sangeetha, S Sona, LBNS Khiamniungan, S Bui Iranian Journal of Science and Technology, Transactions of Civil Engineering … , 2025 2025 Citations: 1
Reinforced concrete beam‐column joints through sisal fiber reinforced—An integrated experimental and analytical study of enhancing cyclic behavior R Abirami, SP Sangeetha, R Divahar Structural Concrete 26 (5), 6107-6127 , 2025 2025 Citations: 1
Brassica juncea and Medicago sativa as Phytoremediators for the Removal of Chromium and Arsenic. S Monisha, SP Sangeetha Nature Environment & Pollution Technology 24 (3) , 2025 2025
Bacterial Nano-Cellulose for Enhanced Concrete Performance: A Macro-to-Micro Investigation Unveiling Its Effects on the Strength and Durability of Cementitious Systems. S Sona, SP Sangeetha Journal of Building Engineering, 113539 , 2025 2025 Citations: 5
Analysis of Plants, Helianthus annuus (Sunflower) and Gossypium herbaceum (Cotton), for the control of heavy metals chromium and arsenic using phytoremediation techniques S Monisha, SP Sangeetha Nature Environment and Pollution Technology 24 (2), 1-13 , 2025 2025 Citations: 2
Optimization of microbial fermentation processes using RSM approach for soil improvement P Suriya, SP Sangeetha Journal of Building Pathology and Rehabilitation 10 (1), 72 , 2025 2025 Citations: 1
Prediction of Compressive Strength of Sustainable Cement Mortar Using Machine Learning A Andrews, AV Santhosh, NE Varghese, S Sangeetha International Conference on Innovative Trends in engineering for … , 2025 2025
Development of Eco-friendly Marine Clay Blocks Using Chitosan Biopolymer and Alccofine V Biju, GJ Kuriakose, D Benny, MS Vishnu, S Sangeetha International Conference on Innovative Trends in engineering for … , 2025 2025
Eco-friendly alternative activators derived from industrial wastes for the sustainable production of two-part geopolymer concrete at low cost S Sona, SP Sangeetha Construction and Building Materials 467, 140374 , 2025 2025 Citations: 24
Assessing phytoremediation potential of aloe barbadensis, chrysopogon zizanioides and ocimum tenuiflorum for sustainable removal of heavy metals from contaminated soil SP Sangeetha, S Sona, N Tapung, A Kumar, S Kumar Nature Environment and Pollution Technology 24, 259-271 , 2025 2025 Citations: 1
Experimental investigation on replacement of steel reinforcement with hybrid polymer rods SP Sangeetha, Shivananth AIP Conference Proceedings 3022 (1), 020019 , 2024 2024
Lemon peel activated carbon: a sustainable solution for lead ion removal from E-waste bioleachate R Divahar, T Meenambal, JS Mary, PSA Raj, SP Sangeetha, SAA Anand Sustainable Chemistry for the Environment 6, 100094 , 2024 2024 Citations: 14
Empirical predictions for the mechanical properties of Nano-Biomass silica with chemical and Bio-Admixture concrete N Nageswari, R Divahar, SP Sangeetha, PSA Raj, G Kesavan Silicon 16 (5), 2081-2101 , 2024 2024 Citations: 5
Taxonomy for Self-healing Concrete N Nageswari, R Divahar, SP Sangeetha Recent Advances in Structural Engineering: Select Proceedings of IACESD-2023 … , 2024 2024
Embedded with PVC Pipe Sandwiched SP Sangeetha, VM Nair, P Suriya, R Divahar, PSA Raj 2nd International Conference on Smart Sustainable Materials and Technologies … , 2024 2024
Analysis of Plants, Helianthus annuus (Sunflower) and Gossypium herbaceum (Cotton), for the Control of Heavy Metals Chromium and Arsenic Using Phytoremediation Techniques S Monisha, SP Sangeetha Nature Environment and Pollution Technology 24 (2), B4237-. , 2024 2024
Characterization and Development of High-Strength and High-Performance Concrete Incorporating Mineral and Chemical Admixtures-A Review R Divahar, K Naveen Kumar, SP Sangeetha E3S Web of Conferences 596, 01014 , 2024 2024 Citations: 1
Strengthening of Soil Through Microbial Induced Calcite Precipitation Using Acetobacter xylinum PSSP Sangeetha Arabian Journal for Science and Engineering , 2024 2024 Citations: 4
MOST CITED SCHOLAR PUBLICATIONS
Experimental study on concrete using waste ceramic as partial replacement of aggregate RJ Daniel, SP Sangeetha Materials Today: Proceedings 45, 6603-6608 , 2021 2021 Citations: 37
Flexural behaviour of reinforced concrete beams with partial replacement of GGBS SP Sangeetha, PS Joanna American Journal of Engineering Research 3 (1), 119-127 , 2014 2014 Citations: 33
Eco-friendly alternative activators derived from industrial wastes for the sustainable production of two-part geopolymer concrete at low cost S Sona, SP Sangeetha Construction and Building Materials 467, 140374 , 2025 2025 Citations: 24
Experimental behaviour of sisal and kenaf fibre reinforced concrete R Abirami, SP Sangeetha, K Nadeemmishab, PY Vaseem, KS Sad AIP Conference Proceedings 2271 (1), 030023 , 2020 2020 Citations: 18
Mechanical characteristics of pumice stone as light weight aggregate in concrete SP Sangeetha, R Divahar, K Mawlong, B Lyngkhoi, A Kurkalang International Journal of Scientific and Technology Research editor@ ijstr. org , 2020 2020 Citations: 17
A literature survey on water quality of Indian water bodies C Nivetha, SP Sangeetha Materials today: proceedings 33, 412-414 , 2020 2020 Citations: 16
Use of Recycled Construction and Demolition (C&D) Wastes in Soil Stabilization SP Sangeetha, ZT Chophi, P Venkatesh, M Fahad 2022 Citations: 15
Rice husk ash sandcrete block as low cost building material SP Sangeetha International Journal of Engineering Research and Application 6 (6), 46-49 , 2016 2016 Citations: 15
Lemon peel activated carbon: a sustainable solution for lead ion removal from E-waste bioleachate R Divahar, T Meenambal, JS Mary, PSA Raj, SP Sangeetha, SAA Anand Sustainable Chemistry for the Environment 6, 100094 , 2024 2024 Citations: 14
Dataset on the assessment of water quality of ground water in Kalingarayan Canal, Erode district, Tamil Nadu, India R Divahar, PSA Raj, SP Sangeetha, T Mohanakavitha, T Meenambal Data in brief 32, 106112 , 2020 2020 Citations: 14
Elimination of global warming gas emissions by utilizing high reactive metakaolin in high strength concrete for eco-friendly protection KN Kumar, R Divahar, M Gupta, PSA Raj, SP Sangeetha, PS Joanna Materials Research Express 10 (8), 085507 , 2023 2023 Citations: 13
Impact of Industrial Wastewater Disposal on Surface Water Bodies in Kalingarayan Canal, Erode district SPSTM R. Divahar, P.S. Aravind Raj Indian Journal of Ecology 46 (4), 823-827 , 2019 2019 Citations: 13
Strength and light transmitting characteristics of translucent concrete using plastic optic fibers SP Sangeetha, P Subathra, R Divahar, PSA Raj Journal of Building Pathology and Rehabilitation 7 (1), 57 , 2022 2022 Citations: 11
Study on fiber reinforced concrete beam-column connection–A review R Abirami, SP Sangeetha Materials Today: Proceedings 33, 415-419 , 2020 2020 Citations: 11
Study on pellucid concrete incorporating optical fibers–a review P Subathra, SP Sangeetha Materials Today: Proceedings 45, 6682-6686 , 2021 2021 Citations: 10
Study on finite element analysis of reinforced concrete beams with GGBS using ANSYS SP Sangeetha, PSA Raj Int J Pure Appl Math 118 (5), 881-7 , 2018 2018 Citations: 10
Flexural behaviour of reinforced concrete beams with GGBS SP Sangeetha, PS Joanna International Journal Of Civil Engineering And Technology 5 (3), 124-131 , 2014 2014 Citations: 10
Effect of Surface Modification on the characteristics of Sisal Fiber Reinforced concrete treated with Na2CO3 R Abirami, SP Sangeetha Nature Environment and Pollution Technology 21 (1), 289-295 , 2022 2022 Citations: 9
Sustainable development of structural joint made using high volume fly-ash concrete PS Aravind Raj, R Divahar, SP Sangeetha, K Naveen Kumar, D Ganesh, ... International Journal of Advanced Science and Technology 29 (10S), 6850-6857 , 2020 2020 Citations: 9
Evaluation of the Energy Factor and Equivalent CO2 Gas Emission by Utilization of Industrial By-products in Concrete for Environmental Protection SPSMB B. Saravanan, R. Divahar Nature Environment and Pollution Technology 22 (1), 327-338 , 2023 2023 Citations: 8