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Pradhan, Subhasis; Barai, Sudhir Kumar (Springer, 2024-02)

The researchers suggested various mix design techniques and mixing strategies to prepare RAC with acceptable mechanical characteristics.

Background on Techniques for Sustainable Use of Recycled Aggregate and Application of Particle Packing Method

Pradhan, Subhasis; Barai, Sudhir Kumar (Springer, 2024-02)

Concrete is an attested building material because of its versatility and cost-effectiveness. Thus, it is the second most consumed material in the world after water (ISO/TC 71, 2005; Weil et al., 2006; Knoeri et al., 2013). ...

Production and Processing of Aggregates

Pradhan, Subhasis; Barai, Sudhir Kumar (Springer, 2024-02)

In India, the extensive use of reinforced concrete and prestressed concrete structures happened in the second half of the nineteenth century. At the time of construction, the reuse of building waste after their service ...

Particle Packing Method of Mix Proportioning and Modified Mixing Approach

Pradhan, Subhasis; Barai, Sudhir Kumar (Springer, 2024-02)

One of the main industries responsible for the rapid depletion of natural resources and the production of greenhouse gases in order to obtain the essential raw materials is the construction industry. To ease the strain on ...

Structural Applications: Slab

Pradhan, Subhasis; Barai, Sudhir Kumar (Springer, 2024-02)

The performance of RAC in both the fresh and hardened stages is adversely affected by the inherent inferior material qualities of RCA caused by the existence of micro-cracks and attached mortar layer. PPM mix design approach ...

Structural Applications: Column

Pradhan, Subhasis; Barai, Sudhir Kumar (Springer, 2024-02)

The basic characterization of RAC prepared by the combined approach of PPM mix design and TSMA confirmed better performance in comparison to the conventional mix design method. This motivated to incorporate the PPM ...

Performance Assessment of Concrete: Meso-, Micro-, Nano-level, and Physio-chemical Analysis

Pradhan, Subhasis; Barai, Sudhir Kumar (Springer, 2024-02)

The effect of microstructural characteristics on the macro-mechanical properties of concrete has been the subject of research over the last few decades. In chapters “Macro-level Performance Assessment of Concrete: Conventional ...

Macro-level Performance Assessment of Concrete: Experimental Fracture Analysis

Pradhan, Subhasis; Barai, Sudhir Kumar (Springer, 2024-02)

Natural coarse aggregate (NCA) can potentially be replaced with recycled coarse aggregate (RCA), which is derived from the leftover concrete from construction and demolition (C &D) projects. However, RCA has drawbacks of ...

Students’ Perspective of the Sudden Shift from Traditional Classroom to Online Teaching Mode Under COVID-19 Situation: A Case Study

Jha, Shibani Khanra; Roy, Banasri (ICON BITS, 2022-02)

The study aims to understand the perspectives of higher education students regarding the sudden transition from a traditional class to online mode during COVID-19 in India. A survey was conducted among 260 undergraduates ...

Experimental Studies and Analysis for Performance Assessment of Floating Solar Photovoltaic Systems

Mittal, Ravi Kant; Jha, Shibani Khanra; Singh, Ajit Pratap; Soni, Manoj Kumar (IOP, 2024)

The Floating Solar Photovoltaic (FSPV) systems are expected to perform relatively at a higher efficiency level as compared to ground mounted PV systems. The major factor affecting the operating efficiency of a solar panel ...

Predictive Modeling of Solar PV Panel Operating Temperature over Water Bodies: Comparative Performance Analysis with Ground-Mounted Installations

Jha, Shibani Khanra; Mittal, Ravi Kant; Singh, Ajit Pratap; Soni, Manoj Kumar (MDPI, 2024-05)

Solar panel efficiency is significantly influenced by its operating temperature. Recent advancements in emerging renewable energy alternatives have enabled photovoltaic (PV) module installation over water bodies, leveraging ...

Role of Nano- and Crystalline Silica to Accelerate Chemical Treatment of Problematic Soil

Chakraborty, Sayantan (ASCE, 2023-04)

A research study was conducted to accelerate engineering property improvements by using novel silica-based coadditives along with a traditional calcium (Ca)-based stabilizer. Silica-based compounds, crystalline-silica (CS) ...

Experimental Studies and Sustainability Assessments of Quarry Dust for Chemical Treatment of Expansive Soils

Chakraborty, Sayantan (ASTM, 2023-08)

Civil infrastructure constructed on expansive soils undergoes distress and loss of serviceability because of damage caused by moisture-induced volumetric changes. Traditional stabilization methods that employ calcium-based ...

Micro-mechanical behavior of nanosilica-treated high-sulfate soils

Chakraborty, Sayantan (Candian Science Publishing, 2024-05)

The addition of calcium (Ca)-based stabilizers to sulfate-rich expansive soils is associated with the formation of ettringite, a deleterious reactant that can cause moderate-to-severe swell-related damage to overlying ...

Alkali-Activation Potential of Sandstone Wastes with Electric Arc Furnace Slag as Co-additive

Bhunia, Dipendu; Chakraborty, Sayantan (Springer, 2023-12)

Electric arc furnace slag (EAF) and sandstone waste (SW) are two of the most abundantly generated industrial wastes whose utilization as precursors and supplementary cementitious materials has not been exhaustively studied. ...

Harmonic in-plane patch loading induced nonlinear dynamic instability of unidirectional and bidirectional stiffened composite plates

Patel, S. N. (Sage, 2024-02)

A finite element framework is established to study the nonlinear dynamic instability of stiffened plates subjected to in-plane harmonic patch loading. An eight-noded isoparametric degenerated shell element and a three-noded ...

Tunable thermal postbuckling response of imperfect skew sandwich plates with auxetic core and FGCNTRC facings using isogeometric approach

Watts, Gaurav; Kumar, Rajesh; Patel, S. N. (Elsevier, 2024-04)

The present work investigates the stability characteristics of skew sandwich plates with functionally graded (FG) facings reinforced with carbon nanotubes having temperature-dependent properties and a re-entrant auxetic ...

Nonlinear dynamic instability and dynamic response of stiffened laminated composite plates subjected to in-plane pulsating patch loading

Patel, S. N. (Taylor & Francis, 2023-11)

In this article, the nonlinear dynamic instability of stiffened laminated composite plates is studied in the finite element (FE) framework subjected to uniform in-plane harmonic patch loading. The harmonic load is applied ...

An innovative approach for predicting pandemic hotspots in complex wastewater networks using graph theory coupled with fuzzy logic

Srinivas, Rallapalli (Springer, 2023-05)

Early prediction of COVID-19 infected communities (potential hotspots) is essential to limit the spread of virus. Diagnostic testing has limitations in big populations because it cannot deliver information at a fast enough ...

Wetland functional assessment and uncertainty analysis using fuzzy α-cut–based modified hydrogeomorphic approach

Srinivas, Rallapalli; Singh, Ajit Pratap (Springer, 2023-05)

Wetlands are significant ecosystems which perform several functions such as ground water recharge, flood control, carbon sequestration, and pollution reduction. Accurate evaluation of wetland functions is challenging, due ...

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