Journal of Advanced Research in Civil and Environmental Engineering

A Study on Energy Efficiency Requirements of Indian Green Building Council Green Homes and Green Rating for Integrated Habitat Assessment under Cold Climate

Rakesh P — 2024-09-25

Introduction: A comparison study was conducted on energy efficiency criteria to differentiate between two major Green Building Rating (GBR) systems used in India: Indian Green Building Council Green Homes (IGBC GH) and Green Rating for Integrated Habitat Assessment (GRIHA).
Method: More energy-efficient combinations of wall envelope, roof envelope, and HVAC system were formulated so that they could be compared with the requirements of IGBC GH and GRIHA. In IGBC GH energy-enhanced performance is based on a percentage of energy cost savings and in GRIHA, it is based on a reduction from the benchmark energy performance index (EPI).
Results: The maximum percentage of energy cost savings in IGBC GH was found to be in the range of 37.05–42.96%, whereas the maximum reduction from benchmark EPI in GRIHA varied in the range of 28.16–44.10% under different climate zones.
Conclusion: Although this study’s combinations allowed for the maximum energy efficiency points in IGBC GH, it was not possible to achieve full points in GRIHA.

Impact of Energy Measures on Energy Savings, Life Cycle Cost, and Life Cycle Energy in Cold Climate

Rakesh P — 2024-09-25

Introduction: The use of energy-efficient building envelope materials, as well as the installation of high-efficiency HVAC systems, has been shown to be particularly beneficial in lowering building energy consumption. The adoption of energy efficiency measures in residential structures is fairly restricted in India. The purpose of this study is to investigate how the material type of building envelope components, HVAC efficiency, and heating temperature set point affect the life cycle of a residential structure in India’s cold climate.
Method: In this study, resin-bonded mineral wool (RBMW), expanded polystyrene (EPS), and polyisocyanurate (PIR) roof insulation with thicknesses of 50 mm and 100 mm were used. The wall envelope was made of clay brick (base case) and autoclave aerated concrete blocks (AAC). The coefficient of performance of HVAC has been varied from 3 to 5 and the heating set point temperature from 22 °C to 19 °C.
Results: The energy savings of the combined measures were found to be 40.85%, the life cycle cost (LCC) savings were up to 24.88% and life cycle energy (LCE) savings were up to 33.57%.
Conclusion: The use of energy efficiency measures was found to be very cost-effective and resulted in a significant reduction in energy use during the life cycle of the building.

Application of Waste Bakelite as a Partial Replacement of Fine Aggregate: Review

Karan Gautam — 2024-11-26

Bakelite is a synthetic polymer; it poses a disposal challenge and negatively impacts the environment and public health. Numerous researchers have explored converting discarded Bakelite into a useful construction material within the field of civil engineering to address this issue. Waste made of bakelite is usually burnt or disposed of in landfills, both of which are bad for the environment and living things. There is a waste management conundrum because Bakelite cannot be disposed of by open burning or direct landfilling. The purpose of this study is to look into the possibility of using leftover Bakelite to partially substitute natural sand in the making of concrete. Specifically, the goal is to determine whether replacing some of the traditional M25-grade concrete mix with Bakelite can enhance the concrete’s compressive strength. Furthermore, Bakelite waste is being tested as a substitute for certain fine and coarse aggregates in the production of bricks, paver blocks, and solid blocks. The strength of these materials is assessed and compared with conventional alternatives.

Enhancing Thermal and Acoustic Insulation in Aerated Concrete: Role of Aluminium Powder as a Foaming Agent

Ashish Kumar — 2024-12-07

Aerated concrete, also known as cellular or lightweight concrete, is a unique construction material that has gained widespread use due to its thermal insulation, reduced weight, and fire resistance. One of the most common methods of creating aerated concrete is through the use of aluminum powder as a foaming agent, which releases hydrogen gas and creates the characteristic air-filled pores in the material. This review paper provides an in-depth exploration of the properties, production methods, and applications of aerated concrete utilizing aluminum powder. Various studies are examined to evaluate the mechanical properties, thermal efficiency, environmental impact, and structural integrity of aluminum powder-aerated concrete. Fifteen studies are cited to comprehensively address the current state of knowledge and potential advancements in this field.

Innovation in Lightweight Construction: A Review of Aerated Concrete with Aluminium Foaming Agents

Ashish Kumar — 2024-12-07

Aerated concrete is manufactured by using foaming agent or gas bubbles into conventional concrete. Aerated concrete is light as compared to conventional concrete. The volume of aerated concrete is increased due to foaming agent or gas bubbles. It reduces the self weight of structure.The primary foaming agent is aluminum powder. Hydrogen gas is created when this powder and the calcium hydroxide in the combination react.
This reaction creates a large number of tiny air bubbles in the concrete, which makes it lightweight and porous. Examining the impact of powder content on mechanical properties is the main goal of this investigation.