Experimental behaviour of smart concrete embedded with micro carbon fibres as a sensing material

Cholker, Arvind Kumar; Kulkarni, Prathik; Ravekar, Vikas

doi:10.1088/1742-6596/1921/1/012095

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…The elastic constant of material i.e., young's modulus/modulus of elasticity (E) was decreased with increase in PE material. As the percentage of PE was increased from 0-15%, its E was reduced by 75% [5,11,14,20,23 ]. The density of PE-FA concrete was decreased when recycled PE was increased.…”

Section: Introductionmentioning

confidence: 97%

Studies on partial replacement of HDPE and PP waste plastic for M30 and M40 grade concrete

Suvidha,

Jain,

Kumar

2023

Preprint

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In the present paper two different plastic materials High Density Polyethylene (HDPE) and Polypropylene (PP) was replaced with fine aggregate (FA) till 10% by 2.5% increment. Different test such as compressive strength (3, 7, 28 & 60 days) (150x150x150mm), flexural strength (3, 7, 28 & 60 days) (100x100x500mm), acid attack (28, 56 & 90 days)(100x100x100mm), sulphate attack (28, 56 & 90 days)(100x100x100mm), thermal conductivity (180mm dia x 20mm thick). The compressive strength of 40.52MPa and 38.41Mpa for PP and HDPE material was observed in M30 grade concrete respectively. Similarly, for M40 grade concrete 43.6MPa and 41.8MPa for PP and HDPE material respectively. The optimum percentage of 5% and 7.5 for PP and HDPE material respectively can be replaced in concrete for flexural strength for both M30 and M40 grade. The least percentage loss in acid attack was observed at 28 days for both HDPE and PP material but for 56days and 90 days the percentage loss of weight was significantly less (< 5%). The sulphate attack for both M30 and M40 grade concrete showed less than 10% percentage loss in weight till 90 days. Thermal conductivity (k) was also reduced by 30–35% for both HDPE and PP material till 10% replacement in concrete for M30 and M40 grade.

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Section: Introductionmentioning

confidence: 97%

Studies on partial replacement of HDPE and PP waste plastic for M30 and M40 grade concrete

Suvidha,

Jain,

Kumar

2023

Preprint

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“…An increase of 85% in flexural strength and 22% in compressive strength has been reported, along with the introduction of a small amount of CFs (0.189% by volume) into concrete [31]. Cholker et al [32] studied the behavior of "smart" carbon reinforced concrete with microfibers. The specimens were assessed under loading-unloading cycles to examine the stress and damage sensing ability.…”

Section: Introductionmentioning

confidence: 99%

Cement Composites with Graphene Nanoplatelets and Recycled Milled Carbon Fibers Dispersed in Air Nanobubble Water

et al. 2022

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The individual effect of nano- and micro-carbon-based fillers on the mechanical and the electrical properties of cement paste were experimentally examined in this study. The objective of the study was to separately examine the effects of size and morphology (platelets and fibers) of nano- and micro-reinforcement. Three different sizes of Graphene Nanoplatelets (GNPs), at contents of 0.05% and 0.20% and recycled milled carbon fibers (rCFs), at various dosages from 0.1–2.5% by weight of cement, were incorporated into the cementitious matrix. GNPs and rCFs were dispersed in water with air nanobubbles (NBs), an innovative method that, compared to common practice, does not require the use of chemicals or high ultrasonic energy. Compressive and bending tests were performed on GNPs- and rCFs-composites. The four-wire-method was used to evaluate the effect of the conductive fillers on the electrical resistivity of cement paste. The compressive and flexural strength of all the cementitious composites demonstrated a considerable increase compared to the reference specimens. Improvement of 269.5% and of 169% was observed at the compressive and flexural strength, respectively, at the GNPs–cement composites incorporating the largest lateral size GNPs at a concentration of 0.2% by weight of cement. Moreover, the rCFs–cement composites increased their compressive and flexural strength by 186% and 210%, respectively, compared to the reference specimens. The electrical resistivity of GNPs- and rCFs-composite specimens reduced up to 59% and 48%, respectively, compared to the reference specimens, which proves that the incorporation of GNPs and rCFs can create a conductive network within the cementitious matrix.

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Studies on partial replacement of waste high density polyethylene (HDPE) and polypropylene (PP) plastic with fine aggregate (FA) on mechanical, durability and thermal properties of M30 and M40 grade concrete

Suvidha,

Jain,

Kumar

2024

Discov Civ Eng

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The aim of the present paper is to incorporate two different waste plastic materials that is High-Density Polyethylene (HDPE) and Poly-Propylene (PP), were replaced with Fine Aggregate (FA) at a 10% by 2.5% increment. The widespread formation of HDPE and PP waste plastics has become a major environmental issue, endangering ecosystems and human health. Traditional disposal techniques, such as landfills and incineration, lead to pollution and resource depletion. Incorporating these polymers into concrete provides a long-term solution that reduces environmental effect while improving material qualities. The Different tests conducted are compressive strength (3, 7, 28 and 60 days) (150 × 150x150 mm), flexural strength (3, 7, 28 and 60 days) (100 × 100x500 mm), acid attack (28, 56 and 90 days) (100 × 100x100 mm), sulphate attack (28, 56 and 90 days) (100 × 100x100 mm), and thermal conductivity (180 mm dia x 20 mm thick). The compressive strengths of 40.52 MPa and 38.41 MPa for PP and HDPE material were observed in M30-grade concrete, respectively. Similarly, for M40-grade concrete, 43.6 MPa and 41.8 MPa are for PP and HDPE material, respectively. The optimum percentages of 5% and 7.5 for PP and HDPE material, respectively, can be replaced in concrete for flexural strength in both M30 and M40 grades. The least percentage loss in acid attack was observed at 28 days for both HDPE and PP material, but for 56 days and 90 days, the percentage loss of weight was significantly less (< 5%). The sulphate attack for both M30 and M40 grade concrete showed less than 10% percentage loss in weight after 90 days. Thermal conductivity (k) was also reduced by 30–35% for both HDPE and PP material, with 10% replacement in concrete for M30 and M40 grades. The use of Waste HDPE and PP material can be used to improve the mechanical, durability & thermal property of M30 and M40 grade concrete under controlled conditions.

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Experimental behaviour of smart concrete embedded with micro carbon fibres as a sensing material

Cited by 5 publications

References 19 publications

Studies on partial replacement of HDPE and PP waste plastic for M30 and M40 grade concrete

Studies on partial replacement of HDPE and PP waste plastic for M30 and M40 grade concrete

Cement Composites with Graphene Nanoplatelets and Recycled Milled Carbon Fibers Dispersed in Air Nanobubble Water

Studies on partial replacement of waste high density polyethylene (HDPE) and polypropylene (PP) plastic with fine aggregate (FA) on mechanical, durability and thermal properties of M30 and M40 grade concrete

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