14 publications
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Utilization of Brick Dust and Rice Husk Ash for Sustainable Cement Replacement in M20 Grade ConcreteBy Md Majid, Harsh Rathore
Abstract: AbstractThe study evaluates the influence of replacing cement with Fly Ash, Brick Dust, and Rice HuskAsh on the compressive strength of concrete. Cement replacement was conducted at varyingpercentages (5%, 10%, 15%, 20%, 25%, 30%, 35%, and 40%) for M20 grade concrete, andcompressive strength was assessed at 7, 28, 90, and 180 days. The results demonstrate thatpartial cement replacement can achieve comparable or improved strength performance up to anoptimal level, beyond …
Published in International Journal of Concrete Technology · Vol. 11, Issue 2, 2025 · pp. 1–5 Read article →
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Investigating Physical and Durability Properties of Pervious Concrete with Fly Ash-Based GP, PPC, and FaL-G BindersBy Ashutosh Dehariya, Harsh Rathore
Abstract: AbstractPervious concrete is gaining prominence as a sustainable pavement material due to its enhancedpermeability, reduced runoff, and environmental benefits. This study evaluates the physical anddurability properties of pervious concrete incorporating different binders, including OrdinaryPortland Cement (OPC), Fly Ash-based Geopolymer (GP), Portland Pozzolana Cement (PPC),and Fly Ash-Lime-Gypsum (FaL-G). The key parameters assessed include permeability,porosity, dry density, salt resistance, sulfate resistance, acid resistance, water absorption, andthermal expansion. Permeability results indicate that FaL-G …
Published in International Journal of Concrete Technology · Vol. 11, Issue 2, 2025 · pp. 15–21 Read article →
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Enhancing Compressive Strength of Geopolymer Concrete with Micro and Macro Steel Fibers: A Study on Fiber-Reinforced GeopolymersBy Kshama Lovanshi, Harsh Rathore
Abstract: AbstractThis research investigates the impact of micro and macro steel fibers on the compressive strength ofgeopolymer concrete (GPC). The study utilizes locally sourced materials, including river sand,granite aggregates, fly ash, and ground granulated blast furnace slag (GGBS) in a 50:50 ratio asalumino-silicate materials. Sodium hydroxide (NaOH) and sodium silicate (Na₂SiO₃) were employedas activators, with the addition of a superplasticizer (Conplast SP430) to enhance workability. FourGPC mixes were analyzed: GPC without …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 10, Issue 2, 2024 · pp. 15–20 Read article →
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Optimizing Characteristics of Ferro-Geopolymer Composites for Structural ApplicationsBy Rishabh Tiwari, Harsh Rathore
Abstract: Abstract This study focuses on developing an optimal mix for geopolymer mortar (GPM) using varying molarities of NaOH solution and different binder-to-aggregate ratios. The primary objective was to determine the mix that yields the highest compressive strength. GPM cubes were prepared and subjected to two curing methods – oven curing and steam curing. Compressive strength tests were conducted at 3, 7, and 28 days. The results show that the compressive …
Published in International Journal of Concrete Technology · Vol. 10, Issue 2, 2024 · pp. 17–22 Read article →
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Influence of GGBFS Content and Curing Methods on the Compressive Strength of Coconut Shell Concrete: A Mix Design Approach for Sustainable ConstructionBy Netram Malviya, Harsh Rathore
Abstract: AbstractThis study explores the development of a coconut shell concrete (CSC) mix design using theACI211.298 guidelines, targeting a compressive strength of 20 MPa for structural applications. Dueto the organic and flaky properties of coconut shell (CS), achieving the initial target strength of 40MPa was challenging, necessitating a focus on optimizing mix proportions for a 20 MPa goal. Theresearch investigates three different mixes with varying percentages of ground granulated blastfurnace slag …
Published in International Journal of Structural Engineering and Analysis · Vol. 10, Issue 2, 2024 · pp. 9–14 Read article →
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Influence of Recycled Aggregate and Steel Fiber on the Compressive Strength of Concrete: A Comparative Study of NAC and RAC MixesBy Bharti Ahirwar, Harsh Rathore
Abstract: Abstract This study evaluates the impact of varying proportions of recycled concrete aggregate (RCA) and steel fiber content on the compressive strength of concrete mixes. Five concrete mixes were prepared with different percentages of RCA (0%, 25%, 50%, 75%, and 100%), using a constant water-to-cement ratio (w/c) of 0.55. Additionally, each mix included variations with 1% and 2% steel fiber by volume, corresponding to 78.5 kg/m³ and 157 kg/m³, respectively. …
Published in International Journal of Concrete Technology · Vol. 10, Issue 2, 2024 · pp. 11–16 Read article →
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Performance Evaluation of Geopolymer Masonry Units Using Fly Ash and GGBFS: Dimensionality, Density, Water Absorption, and Compressive Strength AnalysisBy Singh Utsav Ramesh Chhaya, Harsh Rathore
Abstract: AbstractThis study investigates the production, properties, and performance of geopolymer masonry units,utilizing Class F fly ash and Ground Granulated Blast Furnace Slag (GGBFS) as primary binders.These binders were activated using an 8M alkaline solution, with the materials mixed alongsidemanufactured sand (M-sand) as the fine aggregate. The binder-to-aggregate ratio was maintained at1:1, while the alkaline solution-to-binder ratio was kept at 0.2. Various geopolymer masonry units,including geopolymer bricks (GPB), solid blocks (GPSB), …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 2, 2024 · pp. 26–32 Read article →
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Performance Analysis of High-Volume Fly Ash and Recycled Aggregate in M50 Concrete: Workability and Compressive StrengthBy Lalita Shirohiya, Harsh Rathore
Abstract: Abstract This study evaluates the impact of recycled aggregate (RA) and high-volume fly ash (HVFA) on the workability and compressive strength of M50 grade concrete. Slump tests were conducted for various water-cement ratios, using a mix ratio of 1:0.69:2.29 and a high-range water reducer. The compressive strength of concrete mixtures incorporating varying percentages of RA and FA was measured at 7, 28, and 90 days. Results indicate that replacing natural …
Published in International Journal of Concrete Technology · Vol. 10, Issue 2, 2024 · pp. 25–32 Read article →
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Enhancing Geopolymer Concrete Properties Through Processed Fly Ash and Alccofine IntegrationBy Ankit Gupta, Harsh Rathore
Abstract: Abstract Geopolymer concrete (GPC) is gaining attention as a sustainable alternative to ordinary Portland cement (OPC) due to its potential to reduce the environmental impact of cement production, which accounts for roughly 7% of global CO2 emissions. This study investigates the use of processed fly ash and alccofine as key ingredients in GPC to improve its workability and compressive strength. Experimental tests were conducted to evaluate the effects of different …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 2, 2024 · pp. 1–8 Read article →
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Optimizing Concrete Composition: Evaluating the Effects of Flaky Aggregates, Steel Slag, and Marble Powder on PerformanceBy Sonu Patel, Harsh Rathore
Abstract: The characteristics of materials used in construction have a significant impact on the performance ofthe resulting concrete. Coarse and fine aggregates are crucial components in cement concrete,influencing its strength and workability. Research has shown that the type of aggregate used, whethercoarse or fine, plays a critical role in these properties. In this study, we examine the combined effect offlaky aggregates and steel slag as partial replacements for coarse aggregates on …
Published in International Journal of Structural Engineering and Analysis · Vol. 10, Issue 1, 2024 · pp. 38–46 Read article →
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Enhancing Concrete Sustainability: A Critical Review of Recycled Aggregate PracticesBy Rahul Sharma, Harsh Rathore
Abstract: The surge in construction material demand, propelled by urbanization, necessitates sustainable wastemanagement strategies. Recycling demolished waste into concrete has gained prominence due toenvironmental concerns and resource depletion. This review consolidates insights gleaned fromvarious studies on the utilization of recycled coarse aggregates (RCA) in concrete. Investigationsreveal that water absorption in RCA depends on adhered mortar quality, impacting mechanicalproperties. Various alternative materials and their mechanical performance are explored, highlightingtheir superiority. Studies emphasize …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 1, 2024 · pp. 7–13 Read article →
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Analyzing Strength Properties of Self-Compacting Concrete at Elevated TemperaturesBy Rahul Mewada, Harsh Rathore
Abstract: This study investigates the influence of fly ash substitution for Ordinary Portland Cement (OPC) on the compressive and splitting tensile strengths of Self-Compacting Concrete (SCC) mixes. The findings reveal that while early age strength may decrease with fly ash substitution, strategic material selection, such as incorporating foundry sand, mitigates this decline. Satisfactory fresh properties were achieved across SCC mixes labeled SCC1-SCC4, with compressive strengths ranging from 30.49 to 19.19 MPa …
Published in International Journal of Concrete Technology · Vol. 10, Issue 1, 2024 Read article →
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Optimizing Concrete Properties with Partial Replacement of River Sand by Used Foundry SandBy Rahul Faraiya, Harsh Rathore
Abstract: In response to the scarcity and rising costs of natural river sand, researchers are exploring alternatives like Used Foundry Sand (UFS) to promote sustainable construction practices. This study investigates the partial replacement of river sand with UFS, testing replacement levels from 0% to 25% by weight. Assessing fresh concrete properties and mechanical characteristics, including compressive strength, splitting tensile strength, and flexural strength, the research focuses on M20 and M30 concrete …
Published in International Journal of Concrete Technology · Vol. 10, Issue 1, 2024 Read article →
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Advancements in Geopolymer Concrete: Formulation Optimization, Strength Characteristics, and Sustainable ApplicationsBy Sheikh Samir Sheikh Hamid, Harsh Rathore
Abstract: This research explores the optimization of Geopolymer Concrete (GPC) formulations by investigating the mix proportions of fly ash, fine aggregate, and coarse aggregate. The study focuses on enhancing early strength properties and delves into the complex geopolymerization mechanism, unraveling the unique contributions of each constituent material. Additionally, the research systematically evaluates the strength characteristics of GPC incorporating Fly Ash (FA) and Ground Granulated Blast Furnace Slag (GGBS), providing insights into …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 1, 2024 · pp. 1–6 Read article →