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Related Concept Videos

Personal Protective Equipment01:20

Personal Protective Equipment

1.6K
Personal protective equipment (PPE) is unique clothing or equipment worn by an employee to minimize or prevent exposure to infectious agents. PPE creates a barrier between the employee and the infectious materials. PPE must be readily available in the patient care area. PPE includes gloves, gowns and aprons, masks and respirators, goggles, face shields, shoes, and headcovers:
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PPE Use in Healthcare Settings I: Donning01:22

PPE Use in Healthcare Settings I: Donning

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Donning PPE must be completed before contact with the patient. This process protects from infectious agents. The sequence and action included in each donning are critical, and the steps must be systematic to avoid exposure to pathogens. The institutional policy also needs to be followed while donning PPE. The pre-donning preparations are gathering equipment, inspecting the PPE equipment for tears, holes, or damage, removing jewelry, removing any garments below the elbows, and tying the hair...
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PPE Use in Healthcare Settings II: Doffing01:10

PPE Use in Healthcare Settings II: Doffing

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The sequence of removing or doffing PPE starts with the gloves, as they are the most contaminated. Next is removal of the face shield or goggles, as they would interfere with removing other PPE. Then remove the gown, followed by the mask or respirator. Perform hand hygiene between steps if hands become contaminated and immediately after removing all PPE. Generally, the outside front and sleeves of the isolation gown, the goggles or the mask, the respirator, and the face shield are contaminated.
977
Abrasion Resistance of Concrete01:23

Abrasion Resistance of Concrete

172
Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...
172
Toughness and Hardness of Aggregate01:22

Toughness and Hardness of Aggregate

304
Toughness and hardness are critical properties of aggregate materials used in concrete, particularly on pavement surfaces and industrial flooring subjected to heavy loads. Toughness is defined as the aggregate's resistance to failure by impact and is measured by the aggregate impact value (AIV). For this, the aggregate impact value test is performed, wherein the impact is delivered by a standard hammer, which falls freely under its own weight onto the aggregates. The aggregates fragment in...
304
Masonry Paving01:21

Masonry Paving

276
The construction of masonry paving involves using materials such as bricks, stones, and concrete masonry units. These materials are chosen for their shape, color, strength, and resistance to abrasion and weathering. Masonry units can be installed dry on a thin layer of sand and a gravel base, or they can be embedded in mortar or asphalt on a concrete slab. For areas subjected to heavy vehicular loads, a rigid base layer of reinforced or unreinforced concrete is recommended. In contrast,...
276

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Advanced Self-Healing Asphalt Reinforced by Graphene Structures: An Atomistic Insight
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Advanced Self-Healing Asphalt Reinforced by Graphene Structures: An Atomistic Insight

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Single Use Personal Protective Equipment Reinforced Asphalt.

Marco Marconi1, Daniele Landi2, Edoardo Bocci3

  • 1Department of Economics, Engineering, Society and Business Organization, Università degli Studi della Tuscia, Largo dell'Università, 01100 Viterbo, Italy.

Procedia CIRP
|April 24, 2023
PubMed
Summary
This summary is machine-generated.

Recycled personal protective equipment (PPE) can be reused to create reinforced bituminous mixtures for road construction. This innovative approach offers significant environmental and economic benefits by diverting waste PPE from landfills.

Keywords:
Circular economyPersonal protective equipmentReinforced asphaltReuse

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Area of Science:

  • Materials Science
  • Civil Engineering
  • Environmental Science

Background:

  • Global production and demand for personal protective equipment (PPE) surged 300-400% between 2019 and 2021 due to the COVID-19 pandemic.
  • This surge has led to a significant increase in end-of-life (EoL) PPE waste requiring sustainable management solutions.

Purpose of the Study:

  • To propose and validate a circular economy strategy for recycling EoL PPE.
  • To investigate the technical feasibility of incorporating EoL PPE into reinforced bituminous mixtures for road pavement applications.

Main Methods:

  • Laboratory-scale testing of five different EoL PPE mixture alternatives.
  • Characterization of mechanical properties of bituminous mixtures containing recycled PPE.
  • Evaluation of environmental and economic impacts of the proposed recycling scenario.

Main Results:

  • A promising mixture combining EoL gloves and face masks (polypropylene, polyethylene, nitrile, latex) at 0.5% by weight was identified.
  • The optimal mixture demonstrated acceptable mechanical performance for road pavement applications.
  • Successful recycling of over 3 kg of EoL PPE per square meter of road pavement was achieved.

Conclusions:

  • The study validates the technical feasibility of reusing EoL PPE in bituminous mixtures.
  • This circular economy approach offers substantial environmental benefits by reducing landfill waste (estimated 1.5 million tons/year in Europe).
  • Economic advantages are realized through reduced waste disposal costs and sustainable resource management.