Utilization of aerogel in building construction –A Review

Shanmugam, Govindhan; Gunasekaran, Eniyachandramouli; Karuppusamy, Ranjith Selvan; Ramesh, R.; Vellaichamy, Preetha

doi:10.1088/1757-899x/955/1/012032

Cited by 12 publications

(3 citation statements)

References 16 publications

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“…One such smart material that has caught the interest of the scientific community is aerogel. Aerogelbased materials are used for highly efficient thermal insulation in the construction sector, as it has extremely low thermal conductivity and highest porosity (Günther et al, 2020;Shanmugam et al, 2020). Aerogel acts as an insulation, which can improve building's energy efficiency, reduce cost of heating and cooling, and also enhance comfort for its occupants.…”

Section: Literature Reviewmentioning

confidence: 99%

Influence of consumer motivations and perception on the adoption of smart, green, and sustainable building materials

P.,

2023

Innovative Marketing

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The purpose of this study is to analyze the barriers to the widespread use of smart, green, and sustainable building materials in the construction industry by focusing on the perceptions, motivations, strategies, and challenges faced by consumers. The analysis employed an exploratory methodology and surveyed 385 respondents in Bangalore, India. The study result shows a significant positive partial correlation (r = 0.629, p = 0.001) between the challenges of adoption and the overall factors that influence adoption after controlling the annual income as a control variable. The higher mean score of personal values and ethics of 4.25 implies that moral values and ethics influence the decisions on the adoption of construction materials. The findings of multiple regression with robust standard error revealed perception of performance of smart, green and sustainable building materials is better compared to traditional building materials (p-value = 0.001), factors positively influencing adoption (p-value = 0.004), motivating factors of adoption (p-value = 0.001) and strategies that encourage adoption of smart, green, and sustainable building materials (p-value = 0.001). All of these have a substantial influence on how consumers evaluate the government’s efforts to increase the adoption of such materials. However, challenges in adoption showed a negative coefficient (B= –0.049) and a robust standard error of 0.024 (p-value = 0.048), demonstrating a negative influence on consumers’ perception. This research acts as a guiding beacon for green adoption policies by studying consumer motivations and perceptions toward adoption of eco-friendly building materials for the sustainable future.

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Section: Literature Reviewmentioning

confidence: 99%

Influence of consumer motivations and perception on the adoption of smart, green, and sustainable building materials

P.,

2023

Innovative Marketing

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“…Aerogel is a synthetic gel composed of porous solid materials and a gas dispersion phase with ultralow density, which is also known as “frozen smoke”. , Aerogels have become one of the research hotspots in the field of materials science due to their abundant raw materials, various preparation methods, and unique properties. , It has been nearly 90 years since the initial use of sodium silicate as a raw material to obtain SiO 2 aerogels through supercritical drying technology . The types of aerogels include SiO 2 aerogels, biomass-based aerogels, metal oxide aerogels, , polymer aerogels, , carbon aerogels, − ceramic aerogels, , etc.…”

Section: Introductionmentioning

confidence: 99%

Konjac Glucomannan Aerogels Modified by Hydrophilic Isocyanate and Expandable Graphite with Excellent Hydrolysis Resistance, Mechanical Strength, and Flame Retardancy

Wang

Lin

et al. 2023

Biomacromolecules

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At present, biomass foamlike materials are a hot research topic, but they need to be improved urgently due to their defects such as large size shrinkage rate, poor mechanical strength, and easy hydrolysis. In this study, the novel konjac glucomannan (KGM) composite aerogels modified with hydrophilic isocyanate and expandable graphite were prepared by a facile vacuum freeze-drying method. Compared with the unmodified KGM aerogel, the volume shrinkage of the KGM composite aerogel (KPU-EG) decreased from 36.36 ± 2.47% to 8.64 ± 1.46%. Additionally, the compressive strength increased by 450%, and the secondary repeated compressive strength increased by 1476%. After soaking in water for 28 days, mass retention after hydrolysis of the KPU-EG aerogel increased from 51.26 ± 2.33% to more than 85%. The UL-94 vertical combustion test showed that the KPU-EG aerogel can achieve a V-0 rating, and the limiting oxygen index (LOI) value of the modified aerogel can reach up to 67.3 ± 1.5%. To sum up, the cross-linking modification of hydrophilic isocyanate can significantly improve the mechanical properties, flame retardancy, and hydrolysis resistance of KGM aerogels. We believe that this work can provide excellent hydrolytic resistance and mechanical properties and has broad application prospects in practical packaging, heat insulation, sewage treatment, and other aspects.

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“…Shanmugam et al 2020 [11] in a study to replace materials with aggregates to reduce weight and use distributed fibers, as well as to compare its properties with conventional concrete, it was found that mixtures containing fibers had higher tensile strength and four compressive strengths, bending strengths, and tensile strengths when tested on samples aged 7 and 28 days.…”

mentioning

confidence: 99%

Shear and Flexural Behavior of Lightweight Concrete Beams Containing Hybrid Fibers

Al-Khafaji,

Harba

2023

Civil and Environmental Engineering

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Due to the low density of lightweight concrete, work has been done in this research to develop it by adding fibers of more than one type to improve its properties. Basic tests were conducted to determine the properties of concrete before and after the addition of fibers. The variables of the models were beams in two groups (shear and flexural). The variables of these two groups included the type of fibers (steel and polypropylene) and the size of the added fibers 0 %, 0.05 %, 0.1 % for polypropylene fibers 0 %, 0.75 %, 1 % for steel fibers. This study presented an examination of 18 beam specimens and discussed the results, which included mechanical properties (air dry density, slump test, compressive strength, modulus of elasticity, flexural strength, and splitting tensile strength). The results showed that the addition of fibers had an effective effect on the compressive strength, and this led to an increase in the resistance to shear forces and flexural forces, as the highest load capacity was shown by adding polypropylene fibers at a rate of 0.1 % in both groups, and the fibers played an important role in reducing the width of cracks and controlling their spread due to modulus of elasticity of the fiber.

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Utilization of aerogel in building construction –A Review

Cited by 12 publications

References 16 publications

Influence of consumer motivations and perception on the adoption of smart, green, and sustainable building materials

Influence of consumer motivations and perception on the adoption of smart, green, and sustainable building materials

Konjac Glucomannan Aerogels Modified by Hydrophilic Isocyanate and Expandable Graphite with Excellent Hydrolysis Resistance, Mechanical Strength, and Flame Retardancy

Shear and Flexural Behavior of Lightweight Concrete Beams Containing Hybrid Fibers

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