Utilization of recycled form of concrete, E-wastes, glass, quarry rock dust and waste marble powder as reliable construction materials

Nasier, Sandeep

doi:10.1016/j.matpr.2020.12.381

Cited by 31 publications

(10 citation statements)

References 14 publications

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“…One of the factors contributing to the secondary use of construction residues is a relatively long period of waste decomposition, the environmental impact on public health, the availability of limited land areas in Ukraine for landfills and alternative ways of using land resources. Ecological problems should take precedence over commercial ones, and the impact of waste on the ecosystem is substantial and spreads between countries, while recycling contributes to the emergence of new disposal methods and the development of science [5].…”

Section: Related Workmentioning

confidence: 99%

Construction waste recycling in the circular economy model

Mikhno

Ihnatenko

Cherniaiev

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The disposal of construction waste, the amount of which is constantly growing due to hostilities in Ukraine and outdated housing stock that has lost its consumer properties is an acute problem. The study proposes adopting the circular economy and the principles of improving the security and environmental situation in Ukraine to restore the country’s potential. The article analyzes the main stages and processes of construction waste disposal, taking into account their fractional recycling and reuse in the reconstruction of settlements, which is based on the rational use of resources and innovations and will reduce the cost of restoring destroyed settlement areas. Efficient construction is possible only if environmental and economic indicators are improved, the level of safety and manufacturability are improved. A methodology for assessing the effectiveness of future construction has been developed and recommendations for its improvement have been given.

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Section: Related Workmentioning

confidence: 99%

Construction waste recycling in the circular economy model

Mikhno

Ihnatenko

Cherniaiev

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Non-renewable georesources include: minerals, rocks, fossils, petrogenetic features, mines, landforms, glaciers, ice age phenomena, and some geomorphological features [14][15][16]. Their main applications include building construction [17,18]; development of smartphones and computers [19,20]; illumination [21]; farming [22,23]; jewelry (gemstones) [24,25], drinking water supply, and development of renewable energies [26].…”

Section: Introductionmentioning

confidence: 99%

Georesources as an Alternative for Sustainable Development in COVID-19 Times—A Study Case in Ecuador

et al. 2022

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Georesources comprise spaces of relevant geological value with the potential to be used and managed as a resource. Therefore, georesources are an essential development factor in the world, mainly oriented to their rational use to improve the quality of life of the surrounding population. This work aims to analyze the main applications, conservation strategies and sustainable use of georesources in the rural area of Manglaralto (Ecuador) through their inventory, assessment and analysis for the adaptation of alternative uses to particular circumstances (e.g., the COVID-19 pandemic). The method used consists of four phases: (i) inventory and mapping of georesources; (ii) description and assessment of georesources using international methodologies (e.g., GtRAM for georoute assessment, hydrogeological characterization using GeoModeller for groundwater assessment, GIS tools for assessing materials with industrial–artisanal interest, and KFM matrix method for the assessment of the level of construction difficulty of sanitary landfills); (iii) georesources complementary applications and (iv) SWOT analysis (Strengths, Weaknesses, Opportunities, Threats) and TOWS matrix preparation (Threats, Opportunities, Weaknesses, Strengths), seeking strategies to guarantee the viability of the use of georesources. As a main result of the investigation, the geolocation of the georesources of the area was obtained. In addition, the assessment of the main georesources such as (i) potential geosites and sites of geological interest (e.g., beaches, cliffs, waterfalls, capes), (ii) groundwater (aquifers), and (iii) materials with artisanal and industrial interest (e.g., clays, sands). Finally, the study allowed us to define areas to develop landfill infrastructure, identify ecosystem services, and construct tsunami refuge site proposals. The case study addressed shows that the inventory and definition of the use of geological resources constitute a fundamental process for the economic, social, and environmental development of the population.

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“…To minimize the energy crisis and the impacts caused on the environment due to the cement manufacturing, several researches were carried out about recycling expired cement and about the closed packaging method in which active silica and aged props were added [5]. Besides, the use of waste in concrete research is widespread: silica, rice husk, glass, plastics, construction and demolition waste are some of the various materials used in recycled concrete [6][7][8][9]. However, these studies carried out with concrete using cement after expiration date stipulated by the manufacturer and standards are still recent.…”

Section: Introductionmentioning

confidence: 99%

Cement After Expiry Date: Effect in the Concrete Properties

Rocha

Gonçalves²,

Maia

2022

Lecture Notes in Civil Engineering

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Portland cement has been widely used around the world to produce concrete. When Portland cement is not used correctly, following the normative prescriptions, its use can compromise the aesthetics and the safety of structures. The present research consisted of analyzing the workability of concrete in fresh state and compressive strength in its hardened state when using Portland cement with expired date higher than 90 days defined by the Brazilian standard NBR. For the tests, three cements were selected with different manufacturing dates: November 2018, July 2019 and August 2020. The workability was assessed through the slump test and the compressive strength test at the ages of ages 1, 7, 14 and 28 days. The mix used was for a compressive strength of 25 MPa at the age of 28 days. The slump tests showed divergent values regarding to the expired cements, leading to inconclusive findings, because even with the w/c change, the slump achieved for the 2019 cement-based concrete was lower than that recommended for common concrete. It was concluded that the compressive strength decreased for concretes produced with expired cement.

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Utilization of recycled form of concrete, E-wastes, glass, quarry rock dust and waste marble powder as reliable construction materials

Cited by 31 publications

References 14 publications

Construction waste recycling in the circular economy model

Construction waste recycling in the circular economy model

Georesources as an Alternative for Sustainable Development in COVID-19 Times—A Study Case in Ecuador

Cement After Expiry Date: Effect in the Concrete Properties

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