Scopus Publications
- Influence of nano titanium dioxide on strength and durability of ambient-cured GGBS-based geopolymer concrete
A. Ravi Theja, M. Sivaramakrishnaiah, K․V․S․Gopala Krishna Sastry, C. Sashidhar, Prabhu Paramasivam, Praveen Kumar Kanti, Abinet Gosaye Ayani
Results in Engineering, 2025
This study investigates the impact of nano titanium dioxide (nano TiO₂) on the mechanical and durability performance of geopolymer concrete (GPC) produced using ground granulated blast furnace slag (GGBS) and ambient curing conditions. Sodium hydroxide (10M) and sodium silicate were used as alkaline activators at varying ratios to determine the optimal mix design, with the best compressive strength observed at a Na₂SiO₃/NaOH ratio of 2.5. Nano TiO₂ was then incorporated into the GPC in varying dosages from 1% to 5% by weight of GGBS. Compressive, flexural, and splitting tensile strength tests were conducted, along with rapid chloride permeability, water absorption, sorptivity, and resistance to sulfate and chloride attacks. Microstructural properties were assessed using SEM, EDS, TGA/DSC, and FTIR analyses. The optimal nano TiO₂ content was found to be 3%, which led to a 21.5% improvement in compressive strength and enhanced durability, with lower permeability and porosity compared to the control mix. Beyond 3%, performance declined due to nanoparticle agglomeration and microcracking. The results demonstrate that nano TiO₂ can significantly enhance the performance of ambient-cured GGBS-based geopolymer concrete when used within optimal limits. - Recent Advancements in the Development of Self Healing Concrete - A Systematic Review
A. Ravi Theja, M. Srinivasula Reddy, Bharat Bhushan Jindal, C. Sashidhar
Journal Wuhan University of Technology Materials Science Edition, 2024 - A Study on the Effect of Aluminium Dross and Bottom Ash on the Microstructural Properties of Concrete
Budda Damodhara Reddy, Pathipati Narasimharao, Chundupalle Sasidhar, S. Aruna Jyothy
Revue Des Composites Et Des Materiaux Avances, 2024
The concrete made with cement, natural sand, gravel and water is highly sought material in construction industry. Extensive usage of natural resources results to erosion, depletion of raw materials, pollution and increase in carbon foot print. The combined effects may lead to environmental impacts. The usage of aluminium dross and bottom ash on small scale promotes economic motive since creating, testing, evaluating, designing and executing the projects that fit well with sustainable development by means of using topnotch materials and products that don't cost an arm and a leg while also gentle on the environment. This study investigates feasibility of usage of aluminum dross and bottom ash as environmental friendly material. The results indicate satisfactory strength and durability achieved for concrete. The microstructural properties tested using Thermo Gravimetric Analysis (TGA) and Fourier Transform Infrared Spectroscopy (FTIR) supports the fact that with aluminium dross and bottom ash usage in concrete made it sustainable. - Evaluation of Durability and Microstructural Properties of Waste Foundry Sand as A Sustainable Alternative to M-Sand in Concrete Production
Archaneswar kumar K, Rajasekhar K, Sashidhar C
Ssrg International Journal of Civil Engineering, 2024
High-quality natural river sand is becoming harder to find and is becoming less readily available. There is a limited amount of this resource; hence, attempts are being made to investigate alternatives. Naturally occurring river sand is considered a non-renewable resource because it takes millions of years for it to be produced. It is possible for manufactured sand to completely replace natural sand. Waste foundry sand has been used in place of produced sand in the manufacturing of concrete due to a lack of investigation. Concrete's durability and mechanical qualities are enhanced by the addition of reclaimed foundry sand. This work explores the long-term performance and microstructure of concrete, including both synthetic and recycled foundry sand. At intervals of 7, 14, 28, 56, and 90 days, we evaluated M40 grade concrete, both as a control combination and as mixtures comprising different percent (10%, 20%, 30%, 40%, and 50%) of waste foundry sand with manufactured sand in concrete. Tests for acid resistance (MgSO4), chloride attack (HCL), and rapid chloride permeability were performed on the specimens made and tested to learn more about the WFS concrete's durability features. Thermogravimetric Analysis (TGA/DSC), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), and Fourier Transform Infrared (FTIR) are some of the cutting-edge techniques used to examine the microstructural properties of concrete made using M-sand with WFS. The findings are compared concerning particle morphology and elemental composition. In order to make WFS work as a substitute for fine aggregate in concrete, the right quantity was added based on results from microstructure and durability tests. - Experimental Study on Self Healing Concrete by using the Silicon Dioxide Nano Particles and Crystalline Admixture
M. Sravanthi, C. Sashidhar
Iop Conference Series Earth and Environmental Science, 2024
In this paper, the self-healing ability of fiber-reinforced concrete (M40) has been analyzed with Nano SiO2 particles (NS) as a replacement in cement, crystalline admixture (CCA) as an additive in cement and exposed for four different types of environmental exposures i.e., Water immersion (WI), Wet/Dry cycles(WD), Water contact (WC), Air exposure (AE). Specimens for eight mixes were cast, two of them are plain concrete with one of them containing 1% crystalline admixture (CCA) and the other with absence of crystalline admixture (CCA). Further Nano Silica mixes were also cast with and without CCA. Three of the mixes were having Nano silica replacement at 1%, 2% & 3% and the other were replaced with both CCA at 1% and Nano silica at 1%, 2% & 3%. The specimens were cured for 28 days, followed by crack induction in the range of 0.10-0.40 mm, and they were set for healing process. Post 42 days of healing process, healing ability of specimens were evaluated and the result shows that all the mixes have a considerable amount of healing ability and strength-regaining capability for all exposure conditions. The specimens with 2% Nano silica and 1% CCA has complete crack healing ability and 100% strength recovery for WI and WD cycle conditions. - Predicting The Strength Properties of Self Healing Concrete Using Artificial Neural Network
A. Ravi Theja, M. Srinivasula Reddy, Bharat Bhushan Jindal, C. Sashidhar
Journal of Soft Computing in Civil Engineering, 2023
An extensive simulation program is used in this study to discover the best ANN model for predicting the compressive strength of concrete with respect to the percentage of mineral admixture and percentage of crystalline admixture. To accomplish this, an experimental database of 100 samples is compiled from the literature and utilized to find the best ANN architecture. The main aim of this paper was to predict the strength properties of self-healing concrete (SHC) with crystalline admixture and different mineral admixtures using an artificial neural network (ANN). The samples, 100 in Number, with different mixes, were analyzed after 28 days of curing of the samples. ANN was fed with the experimental data containing four input parameters: mineral admixture (MA), percentage of mineral admixture (PMA), Percentage of crystalline admixture (PCA), and type of exposure (TE). Correspondingly, strength (Fc) was the output parameter. The experimental data showed a good correlation with the values predicted by ANN. In conclusion, ANN could be used to accurately evaluate SHC strength characteristics. - Improvising the Self-Healing Capabilities of Concrete Using Different Pozzolanic Materials and Crystalline Admixtures
A. Ravitheja, T. Chandra Sekhara Reddy, C. Sashidhar
Journal Wuhan University of Technology Materials Science Edition, 2022 - STRENGTH AND DURABILITY CHARACTERISTICS OF SELF COMPACTING CONCRETE (SCC) WITH RECYCLED AGGREGATE AND MANUFACTURED SAND
Sashidhar Chundupalle, Nirmala Seeri, Sudarsana Reddy Veera, Venkata Ramana Nelluri
Acta Polytechnica Ctu Proceedings, 2022
The investigations on self compacting concrete (SCC) with recycled coarse aggregate and Manufactured sand (M-Sand) were performed in this current study. The SCC mixtures were produced with the recycled coarse aggregate of proportions of 0 to 100% with step increment of 25% with a ratio of water binder at 0.36. In addition, the mixtures were also prepared by mixing it with M-Sand. The feasibility of utilizing the recycled coarse aggregate in SCC was evaluated through strength an durability studies. The obtained results demonstrated that the SCC produced from these materials can be effectively recommended for their usages in concrete industries. - Experimental Research on the Effects of Waste Foundry Sand on the Strength and Micro-Structural Properties of Concrete
K. Archaneswar Kumar, K. Rajasekhar, C. Sashidhar
Civil Engineering Journal Iran, 2022
Now a days, a great distance has to be travelled to find good quality natural river sand. These supplies are also running out very quickly. So, a replacement for river sand is being sought after. Natural river sand is non-renewable and takes millions of years to be produced. By using manufactured sand, natural sand is completely replaced. Lack of research has led to the substitution of leftover waste foundry sand for manufactured sand in concrete. By adding used foundry sand to concrete, it is possible to enhance mechanical properties like compressive strength, fracture toughness, and flexibility. Using tests on cubes, cylinders, and unreinforced beams, the mechanical properties of concrete made with waste foundry sand and manufactured sand as fine aggregate were assessed. Tensile, splitting, and flexural strengths of the concrete were all determined after 7, 14, 28, 56, and 90 days of curing. SEM, EDS, and Thermo Gravimetric Analysis (TGA/DCs) were also used to perform micro structural analyses on the control mixture and mixtures containing 10, 20, 30, 40, and 50% waste foundry sand. The strength differences that occur when fine aggregates are replaced with waste foundry sand in different proportions are better understood, thanks to the micro structural experiments. In order to justify its use as a replacement for fine aggregate in terms of strength and microstructure studies, just the right amount of WFS was added to the concrete. Doi: 10.28991/CEJ-2022-08-10-010 Full Text: PDF - Study on Energy Requirements of Building Envelope Developed from Glass Powder Foamed Geopolymer Blocks
Khan Asudullah Khan, Ashwin Raut, C. Rama Chandrudu, C. Sashidhar
Lecture Notes in Civil Engineering, 2022 - Moment carrying capacity of RSCC beams incorporating alccofine and fly ash
Bode Venkata Kavyateja, J. Guru Jawahar, Chundupalle Sashidhar, Narasimha Reddy Panga
Pollack Periodica, 2021 - Micro-level studies of fly ash and GGBS -based geopolymer concrete using Fourier transform Infra-Red
B. Rajini, A.V. Narasimha Rao, C. Sashidhar
Materials Today Proceedings, 2021 - Design and development of sustainable geopolymer using industrial copper byproduct
Khan Asudullah Khan, Ashwin Raut, C. Rama Chandrudu, C. Sashidhar
Journal of Cleaner Production, 2021 - Effect of alccofine and fly ash on analytical methods of self-compacting concrete
Bode Venkata Kavyateja, J. Guru Jawahar, C. Sashidhar
Innovative Infrastructure Solutions, 2020 - Evaluation of mechanical properties on m30 concrete crushed waste glass as fine aggregate
Journal of Green Engineering, 2020 - Micromechanical Properties of Self-Healing Concrete with Crystalline Admixture and Silica Fume
T. Reddy, A. Ravitheja, C. Sashidhar
ACI Materials Journal, 2020 - Effect of Copper Slag on Micro, Macro, and Flexural Characteristics of Geopolymer Concrete
C. Sreenivasulu, J. Guru Jawahar, C. Sashidhar
Journal of Materials in Civil Engineering, 2020 - Effectiveness of alccofine and fly ash on mechanical properties of ternary blended self compacting concrete
Bode Venkata Kavyateja, J. Guru Jawahar, C. Sashidhar
Materials Today Proceedings, 2020 - Strength and Durability Studies of Cement Concrete M45 Fine Aggregate Partially Replaced with Waste Crushed Glass
G. Lalitha, C. Ramachandrudu, Ch. Sashidhar
Lecture Notes in Civil Engineering, 2020 - Self-compacting concrete with recycled coarse aggregate and manufactured sand
S. Nirmala*, , Dr. C. Sashidhar, Dr .R.Veera Sudarsana Reddy Presently, , and
International Journal of Innovative Technology and Exploring Engineering, 2019 - Quality assessment of SCGPC using ultra-sonic pulse velocity at high temperature
C. Yedukondalu*, , C. Sashidhar, and
International Journal of Innovative Technology and Exploring Engineering, 2019 - Self-Healing Concrete with Crystalline Admixture—A Review
A Ravitheja, T Chandra Sekhara Reddy, C Sashidhar
Journal Wuhan University of Technology Materials Science Edition, 2019 - Mechanical and water transport performance of sustainable geopolymer composite using binary blends of pozzolanic materials
Khan Asudullah Khan, Ashwin Raut, C. Rama Chandrudu, C. Sashidhar
Jurnal Teknologi, 2019 - Flexural studies on reinforced geopolymer concrete beams under pure bending
C. Sreenivasulu, J. Guru Jawahar, C. Sashidhar
Advances in Concrete Construction, 2019 - Effective utilization of quarry residues and mineral admixtures in high strength concrete
Syed Afzal Basha, , B. Jayarami Reddy, C. Sashidhar, , and
International Journal of Innovative Technology and Exploring Engineering, 2019 - Investigation on ternary blended self compacting concrete using fly ash and alccofine
International Journal of Recent Technology and Engineering, 2019 - Prediction mechanical properties of GGBS based on geopolymer concrete by using analytical method
B. Rajini, C. Sashidhar
Materials Today Proceedings, 2019 - Investigation on ternary blended self compacting concrete using fly ash and alccofine
International Journal of Recent Technology and Engineering, 2019 - Evolution of 112-day drying shrinkage equation of fly ash blended self-compacting concrete
J. Guru Jawahar, B. Yakshareddy, C. Sashidhar, C. Sreenivasulu, I. V. Ramana Reddy
Asian Journal of Civil Engineering, 2018 - Drivers’ opinion on road safety for indian national highway 40 passing through kurnool district, andhra pradesh-a questionnaire study
International Journal of Civil Engineering and Technology, 2018 - Predicting compressive strength of geopolymer concrete using NDT techniques
C. Sreenivasulu, J. Guru Jawahar, C. Sashidhar
Asian Journal of Civil Engineering, 2018 - Effect of fineness modulus of manufactured sand on fresh properties of self-compacting concrete
Indian Concrete Journal, 2018 - Effect of artificial sand on fresh characteristics of self-compacting geopolymer concrete
Indian Concrete Journal, 2018 - A study on the impact of blast loading for nuclear explosion on structures
International Journal of Civil Engineering and Technology, 2017 - Study of macro level properties of SCC using silica fume and fly ash by using robosand
International Journal of Civil Engineering and Technology, 2017 - Analysis and design of the underground structure to resist blast loads from conventional weapons
International Journal of Civil Engineering and Technology, 2017 - Prediction of road accident modelling for Indian National Highways
International Journal of Civil Engineering and Technology, 2017 - Behavior of high performance concrete two way slabs in punching shear for fixed edge condition
Mechanics of Structures and Materials Advancements and Challenges Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials Acmsm24 2016, 2017 - Strength properties of fly ash and GGBS based geo-polymer concrete
International Journal of Chemtech Research, 2016 - GGBS and Nano Silica (NS) effect on concrete
International Journal of Civil Engineering and Technology, 2016 - Preliminary studies on self compacting geopolymer concrete using manufactured sand
Asian Journal of Civil Engineering, 2016 - Analysis of accidents on national highway-18 passing through kurnool district, andhrapradesh (During construction phase)
International Journal of Applied Engineering Research, 2015 - Fresh and strength properties of self compacting geopolymer concrete using manufactured sand
International Journal of Chemtech Research, 2015 - Micro and macrolevel properties of fly ash blended self compacting concrete
J. Guru Jawahar, C. Sashidhar, I.V. Ramana Reddy, J. Annie Peter
Materials and Design, 2013 - Optimization of superplasticiser and viscosity modifying agent in self compacting mortar
Asian Journal of Civil Engineering, 2013 - Effect of coarse aggregate blending on short-term mechanical properties of self compacting concrete
J. Guru Jawahar, C. Sashidhar, I.V. Ramana Reddy, J. Annie Peter
Materials and Design, 2013 - Design of cost-effective M 25 grade of self compacting concrete
J. Guru Jawahar, C. Sashidhar, I.V. Ramana Reddy, J. Annie Peter
Materials and Design, 2013 - Strength monitoring of concrete structures by using Non-Destructive Testing
Concrete Repair Rehabilitation and Retrofitting III Proceedings of the 3rd International Conference on Concrete Repair Rehabilitation and Retrofitting Iccrrr 2012, 2012 - Effect of improper casting sequence on compressive strength
Indian Concrete Journal, 2012 - Flexural behaviour of SIFCON produced with low tensile strength steel f ibre
Indian Concrete Journal, 2011 - Effect of magnesium chloride (MgCl2) on ordinary Portland cement concrete
V. V. Reddy, N. Venkata Ramana, K. Gnaneswar, C. Sashidhar
Indian Journal of Science and Technology, 2011 - Compression and tension behaviour of SIFCON produced with low tensile strength steel fibre
Indian Concrete Journal, 2010 - An experimental investgation on glass fibre reinforced High Performance Concrete with metakaolin as admixture
3rd International Fib Congress and Exhibition Incorporating the PCI Annual Convention and Bridge Conference Think Globally Build Locally Proceedings, 2010 - Shear strength characteristics of slurry infiltrated fibrous concrete
Proceedings of the 1st International Conference on Recent Advances in Concrete Technology Rac 2007, 2007
