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ASPHALT Plant - DOAJ

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Last Updated: 12 October 2021

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Evaluation of a Filtering Facepiece Respirator and a Pleated Particulate Respirator in Filtering Ultrafine Particles and Submicron Particles in Welding and Asphalt Plant Work Environments

Cumulative masses of these bits are negligible in comparison to the larger fragments, the health effects are much more extreme due to the higher penetration in the human reduced respiratory tract, other body components crossing the respiratory epithelial layers, and the larger surface location. This research study examines the efficiency of two typical readily available N95 filtering system facepieces and N95 pleated particulate respirator versions versus ultrafine and submicron fragments. 2 TSI Nanoscan SMPS nanoparticle counters were made use of all at once to accumulate data for fragments of 10-- 420 nm in size from outside and within of the respirators. Results additionally suggested that while the percentage of purification degrees varied based on the particle dimension, it remained primarily within the preferred defense degree of 95% for both of the N95 respirator designs in covered problems and for the N95 pleated particle model in the unsealed problem.

Source link: https://doi.org/10.3390/ijerph18126437


Study of Surfactant Additives for the Manufacture of Warm Mix Asphalt: From Laboratory Design to Asphalt Plant Manufacture

Thus, today paper aims to add to the application of this cleaner technology to generate WMA for its application in sidewalk for roads, including from the phase of the style of the material busy to its manufacturing in a conventional plant for its usage in a trial area. Results demonstrate that it is feasible to reduce the manufacturing temperature level of asphalt mixes by using chemical additives, recording similar mechanical practices to standard hot blends when certain studies are established for the optimal design of the WMA.

Source link: https://doi.org/10.3390/app7070745

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions