Influence of aggressive environmental impacts on clean, lightweight bricks made from cement kiln dust and grated polystyrene

Saleh, Hosam M.; Salman, Aida A.; Faheim, Abeer A.; Elsayed, Ahmed

doi:10.1016/j.cscm.2021.e00759

Cited by 14 publications

(13 citation statements)

References 46 publications

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“…The highest energy-consuming sectors, including transportation, industry, and residential and commercial buildings, collectively contribute to a substantial portion of global energy demand and carbon dioxide (CO2) emissions. Cement industry occupies a top position in terms of heavy consumption of energy and the generation of carbon dioxide; hence, great attention is dedicated to find alternative sustainable materials to reduce the use of cement in various fields [7][8][9][10] . The transportation sector, which relies heavily on fossil fuels, accounts for a significant share of energy consumption and is a major contributor to CO2 emissions.…”

Section: Climate and Renewable Energymentioning

confidence: 99%

The challenges of sustainable energy transition: A focus on renewable energy

M.Saleh,

I.Hassan

2024

Appl. Chem. Eng.

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Energy is both a fundamental necessity and a driving force behind human activities. Throughout history, energy consumption has steadily risen, evolving from basic needs like food and fire for early humans to complex industrial and technological requirements today. Transitioning to a sustainable energy system requires a policy framework that empowers developing nations to promote green industries, diversify their sectors, and accelerate growth while addressing climate change and related challenges. In response to the urgent need for a global transition towards sustainable energy sources, this research explores the pivotal roles of technology, research, and policy in advancing renewable energy solutions. Motivated by the growing environmental challenges associated with conventional energy sources, the primary goal of this study is to shed light on the multifaceted strategies that facilitate the widespread adoption of renewable energy and contribute to mitigating climate change. Through an extensive analysis of renewable energy technologies, research contributions, and policy frameworks, this research uncovers critical insights. Our findings reveal how technological innovations have revolutionized renewable energy sources, making them more efficient, affordable, and scalable. Furthermore, research efforts have identified new opportunities and addressed technical challenges, while also assessing the environmental and societal impacts of renewable energy adoption. Crucially, this study underscores the indispensable role of policy in driving renewable energy transitions. Governments worldwide play a pivotal role in incentivizing renewable energy development through financial incentives, regulatory mandates, and research and development support. Moreover, these policies aim to promote energy efficiency, conservation, and equitable access to sustainable solutions. The results of this research emphasize that the transition to renewable energy is not only a viable solution to climate change but also an opportunity to create green jobs, enhance energy security, and reduce greenhouse gas emissions. The potential for a sustainable future powered by renewable energy is within reach, and this study serves as a guidepost for realizing this transformative vision.

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Section: Climate and Renewable Energymentioning

confidence: 99%

The challenges of sustainable energy transition: A focus on renewable energy

M.Saleh,

I.Hassan

2024

Appl. Chem. Eng.

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“…In the building industry, numerous researchers considered embedding titanium dioxide (TiO 2 ) in cementitious materials applied to external facades and surfaces exposed to sunlight in urban cities [7,8]. Portland cement has long been used as a supporting medium for TiO 2 nanoparticles because of its effective binding ability that generates photocatalytic reactions to protect and self-clean concrete structures [1,[9][10][11][12]. The photocatalytic process requires the presence of a natural energy source such as solar radiation.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Activity and Mechanical Properties of Cement Slurries Containing Titanium Dioxide

2023

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The effect of titanium dioxide (TiO2) on the mechanical properties of cement slurries including their benefits on air purification and abatement of pollutants is not well documented. Cementitious-based slurries are typically applied in thin layers as decorative coatings for existing facades, protection against an ingress of aggressive ions, or rainproof covers to minimize water penetration. Different parameters including the TiO2 concentration, dispersion time during batching, and applied thickness on top of existing mortar blocks are investigated in this paper. Tested properties included the flow, colorimetry, compressive/flexural strengths, bond to existing substrates, water absorption, and photocatalytic activity evaluated using an ISO 22197-1:2007 reactor. The results showed that the mechanical properties remarkably improved with TiO2 additions, up to 8% of the cement mass. This was attributed to two concomitant phenomena including a micro-filler effect that enhances the packing density and nucleation sites to promote strength development. The removal of nitrogen oxides from the atmosphere reached 92% when the TiO2 was added at a rate of 5% of the cement mass. Such data can be of particular interest to consultants and environmental activists searching for innovative materials capable of maintaining better ambient air quality in urban and modern cities.

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“…Bricks containing expanded perlite, natural zeolite, and ground granulated blast furnace slag have lower thermal conductivity if compared to conventional bricks and, therefore, can be used as heat insulation materials [41]. For bricks containing grated polystyrene, iron slag, and waste glass combined with small amounts of cement, the effects of aggressive environmental influence are reduced [42].…”

Section: Introductionmentioning

confidence: 99%

Effect of Chemical Composition of Clay on Physical-Mechanical Properties of Clay Paving Blocks

et al. 2022

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Clay paving blocks made of natural, environmentally friendly materials have their own originality and colorful authenticity, but due to the complex technological production process, they are also relatively expensive products; therefore, their environmental resistance properties are strictly defined and controlled by the standards. The physical and mechanical properties of clay paving blocks are the key factors aiming to ensure the longevity of products and their long-term success in the market. Therefore, ensuring high physical and mechanical properties of clay paving blocks have become a most crucial challenge for the manufactures. This article considers the parameters of the technological production process of clay paving blocks manufacturing and evaluates the influence of the chemical composition of three different types of clay on the physical and mechanical properties of the paving blocks. Water absorption, linear shrinkage, freeze/thaw, acid resistance, and transverse breaking load of clay paving blocks are investigated. This study reveals the importance of raw material selection in the production process of clay paving blocks and provides the concept of main quality factors of clay.

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Influence of aggressive environmental impacts on clean, lightweight bricks made from cement kiln dust and grated polystyrene

Cited by 14 publications

References 46 publications

The challenges of sustainable energy transition: A focus on renewable energy

The challenges of sustainable energy transition: A focus on renewable energy

Photocatalytic Activity and Mechanical Properties of Cement Slurries Containing Titanium Dioxide

Effect of Chemical Composition of Clay on Physical-Mechanical Properties of Clay Paving Blocks

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