Sustainable Concrete: A Review

Javadabadi, Mohaddeseh Tahanpour; Kristiansen, Danielle De Lima; Redie, Merhawi Bayene; Baghban, Mohammad Hajmohammadian

doi:10.18178/ijscer.8.2.126-132

Cited by 13 publications

(11 citation statements)

References 47 publications

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“…Priyanka Dutta: [21] carried out a review about nanomaterials such as nanosilica, Multiwall Carbon Nano Tubes, Graphene oxide and nano titanium oxide. Analysis of different papers and conclusion drawn shows the factual features of nano concrete.…”

Section: Su-taementioning

confidence: 99%

Nano Concrete With Fly Ash: A Review

2023

IRJMETS

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This review paper deals with the infused nanoparticles within a concrete known as Nano concrete, has been an unindustrialized area of research that is yet to be commercialized. These exorbitant materials are still in progress of having their prices reduced through different sustainable production to get their way into the concrete industry as sustainable, durable and economical material. This paper summarized the literature survey including different nano particles like carbon nanotubes, nano silica, nanographene oxide, fly ash, etc. The microstructural and physical changes, enhance the properties of concrete. The future scope of nanoconcrete is on beneficial side, including improvement in infrastructure reliability and longevity, durability, improved safety against natural hazards and vibrations, reduced lifecycle cost in operating and managing infrastructures, and reduced burdens on resources, energy and environment.

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Section: Su-taementioning

confidence: 99%

Nano Concrete With Fly Ash: A Review

2023

IRJMETS

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“…Possible solutions to reduce these GHG emissions are the substitution of concrete in construction (e.g., timber), partial substitution of cement in concrete (e.g., by blast furnace slag from steel mills, rice husk ash) or reduction in the percentage of clinker in cement (e.g., ultra-lightweight concrete with a high air content). Coal or oil used for heating of the cement kilns can be substituted by waste (as already usual in many countries) [29][30][31], but far more GHG reduction can be achieved by carbon capture and use or by electrical heating from renewable power plants.…”

Section: Energy-intensive Production Processesmentioning

confidence: 99%

The Necessity of a Global Binding Framework for Sustainable Management of Chemicals and Materials—Interactions with Climate and Biodiversity

Steinhäuser¹,

Gleich

Ophoff

et al. 2022

Sustainable Chemistry

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Sustainable chemicals and materials management deals with both the risks and the opportunities of chemicals and products. It is not only focused on hazards and risks of chemicals for human health and the environment but also includes the management of material flows from extraction of raw materials up to waste. It becomes apparent meanwhile that the ever-growing material streams endanger the Earth system. According to a recent publication of Persson et al., the planetary boundaries for chemicals and plastics have already been exceeded. Therefore, sustainable chemicals and materials management must become a third pillar of international sustainability policy. For climate change and biodiversity, binding international agreements already exist. Accordingly, a global chemicals and materials framework convention integrating the current fragmented and non-binding approaches is needed. The impacts of chemicals and materials are closely related to climate change. About one third of greenhouse gas (GHG) emissions are linked to the production of chemicals, materials and products and the growing global transport of goods. Most of it is assigned to the energy demand of production and transport. GHG emissions must be reduced by an expansion of the circular economy, i.e., the use of secondary instead of primary raw materials. The chemical industry is obliged to change its feedstock since chemicals based on mineral oil and natural gas are not sustainable. Climate change in turn has consequences for the fate and effects of substances in the environment. Rising temperature implies higher vapor pressure and may enhance the release of toxicants into the atmosphere. Organisms that are already stressed may react more sensitively when exposed to toxic chemicals. The increasing frequency of extreme weather events may re-mobilize contaminants in river sediments. Increasing chemical and material load also threatens biodiversity, e.g., by the release of toxic chemicals into air, water and soil up to high amounts of waste. Fertilizers and pesticides are damaging the biocoenoses in agrarian landscapes. In order to overcome these fatal developments, sustainable management of chemicals and materials is urgently needed. This includes safe and sustainable chemicals, sustainable chemical production and sustainable materials flow management. All these three sustainability strategies are crucial and complement each other: efficiency, consistency and sufficiency. This obligates drastic changes not only of the quantities of material streams but also of the qualities of chemicals and materials in use. A significant reduction in production volumes is necessary, aiming not only to return to a safe operating space with respect to the planetary boundary for chemicals, plastics and waste but also in order to achieve goals regarding climate and biodiversity.

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“…Concrete is the most utilized material in the construction industry due to its availability, versatility, durability, and relatively low production costs [1]. The automation of concrete constructions could therefore be advantageous in globally reducing production costs, increasing construction speed and quality, and significantly enhancing sustainability through the integration of green concrete mixes and the use of strategic geometries.…”

Section: Introductionmentioning

confidence: 99%

3D printed self-sensing cementitious composites using graphite and carbon microfibers

Liu,

Laflamme,

D’Alessandro

et al. 2024

Meas. Sci. Technol.

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Cementitious materials possessing self-sensing properties conferred through the incorporation of conductive fillers have attracted significant interest in the research community due to their potential application to structural health monitoring (SHM) of civil infrastructure. A key advantage of cementitious sensors is that they can be organically embedded within cementitious structures to provide extremely robust monitoring capabilities. Of interest to this paper, the integration of cementitious sensors could be critical in empowering the 3D printing of cementitious composites by enabling real-time monitoring of additive manufacturing. Such integration could be achieved by 3D printing self-sensing cementitious nodes during the fabrication process. 3D printed self-sensing cementitious sensors could also be topologically engineered to achieve new opportunities in sensing of existing and new concrete and other cementitious structures. This paper presents one of the earliest studies, if not the first, on the 3D printing of self-sensing functionalized composites. The self-sensing cementitious composite sensors are fabricated using a cementitious matrix doped with graphite (G) and carbon microfibers. Various mixtures are studied, in particular G-only, G with milled carbon microfibers (MCMF), G with chopped carbon microfibers (CCMF), and G with MCMF and CCMF. A study of the percolation curves reveals that it is possible to attain electrical percolation using these conductive particles to create strain-sensitive sensors by leveraging the boosted piezoresistive effect. A study of strain sensing performance conducted on various specimens fabricated using different mixture types reveals the optimal concentration of dopants under different types of conductive particles. It is found that the optimal mixture that yields optimal performance also improves the Young’s Modulus of the specimens by 42.2% compared to cement-only specimens. Overall, this optimal mixture composed of 10% weight-to-cement G (10 wt% G), 0.250 wt% MCMF, and 0.125 wt% CCMF yielded a static gauge factor of 622, a resolution of 167 με, an accuracy of 19.24 με, and a Young’s Modulus of 798 MPa.

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Sustainable Concrete: A Review

Cited by 13 publications

References 47 publications

Nano Concrete With Fly Ash: A Review

Nano Concrete With Fly Ash: A Review

The Necessity of a Global Binding Framework for Sustainable Management of Chemicals and Materials—Interactions with Climate and Biodiversity

3D printed self-sensing cementitious composites using graphite and carbon microfibers

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