The Experts below are selected from a list of 4725 Experts worldwide ranked by ideXlab platform
Cheng Zunlan - One of the best experts on this subject based on the ideXlab platform.
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Research on Causes and Prevention Methods of Water Damage to Sichuan - Tibet Highway
Bulletin of Soil and Water Conservation, 2020Co-Authors: Cheng ZunlanAbstract:Sichuan -Tibet Highway is located in the southwest of Qinghai -Tibet Plateau. Water Damage to roadbed near rivers along the highway is very serious because of the complicated characteristics of geology , geomorphology, climate and hydrology. Based on field investigations, the causes and types of Water Damage were discussed, and the prevention of it were put forward. Finally, the application of prevention methods of Water Damage was applied in the K4238 + 196-K4239 + 150 section of Sichuan -Tibet Highway.
Qian Ba - One of the best experts on this subject based on the ideXlab platform.
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Strategy on Prevention Methods of Water Damage in The Lower Lulang River Section of Sichuan-Tibet Highway
Journal of Mountain Research, 2020Co-Authors: Qian BaAbstract:Water Damage to roadbed is very serious in the Sichuan-Tibet Highway. Taking the lower Lulang river section as an example, the characters of Water Damage to roadbed along rivers,Damage condition of old prevention measures is analyzed in the gorges of southeast of Tibet, and the design method of combining ferroconcrete apron with retaining wall is put forward. This method provides a guide for prevention constructions in roadbed along rivers.
Philip R Morey - One of the best experts on this subject based on the ideXlab platform.
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Review of health hazards and prevention measures for response and recovery workers and volunteers after natural disasters, flooding, and Water Damage: mold and dampness
Environmental Health and Preventive Medicine, 2014Co-Authors: Eckardt Johanning, Philip R Morey, Pierre Auger, Chin S. Yang, Ed OlmstedAbstract:Health problems and illnesses encountered by unprotected workers, first-responders, home-owners, and volunteers in recovery and restoration of moldy indoor environments after hurricanes, typhoons, tropical storms, and flooding Damage are a growing concern for healthcare providers and disaster medicine throughout the world. Damp building materials, particularly cellulose-containing substrates, are prone to fungal (mold) and bacterial infestation. During remediation and demolition work, the airborne concentrations of such microbes and their by-products can rise significantly and result in an exposure risk. Symptoms reported by unprotected workers and volunteers may relate to reactions of the airways, skin, mucous membranes, or internal organs. Dampness-related fungi are primarily associated with allergies, respiratory symptoms or diseases such as dermatitis, rhinosinusitis, bronchitis, and asthma, as well as changes of the immunological system. Also, cognitive, endocrine, or rheumatological changes have been reported. Based on the consensus among experts at a recent scientific conference and a literature review, it is generally recommended to avoid and minimize unnecessary fungal exposure and use appropriate personal protective equipment (PPE) in disaster response and recovery work. Mycologists recommend addressing any moisture or Water intrusion rapidly, since significant mold growth can occur within 48 h. Systematic source removal, cleaning with “soap and Water,” and “bulk removal” followed by high-efficiency particulate air vacuuming is recommended in most cases; use of “biocides” should be avoided in occupied areas. Public health agencies recommend use of adequate respiratory, skin, and eye protection. Workers can be protected against these diseases by use of dust control measures and appropriate personal protective equipment. At a minimum, a facial dust mask such as the National Institute for Occupational Safety and Health (NIOSH)-approved N95 respirator should be used for mold remediation jobs. For any large-scale projects, trained remediation workers who have medical clearance and use proper personal protection (PPE) should be employed.
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air and dustborne mycoflora in houses free of Water Damage and fungal growth
Applied and Environmental Microbiology, 2004Co-Authors: Elliott W Horner, Anthony G Worthan, Philip R MoreyAbstract:Typically, studies on indoor fungal growth in buildings focus on structures with known or suspected Water Damage, moisture, and/or indoor fungal growth problems. Reference information on types of culturable fungi and total fungal levels are generally not available for buildings without these problems. This study assessed 50 detached single-family homes in metropolitan Atlanta, Ga., to establish a baseline of “normal and typical” types and concentrations of airborne and dustborne fungi in urban homes which were predetermined not to have noteworthy moisture problems or indoor fungal growth. Each home was visually examined, and samples of indoor and outdoor air and of indoor settled dust were taken in winter and summer. The results showed that rankings by prevalence and abundance of the types of airborne and dustborne fungi did not differ from winter to summer, nor did these rankings differ when air samples taken indoors were compared with those taken outdoors. Water indicator fungi were essentially absent from both air and dust samples. The air and dust data sets were also examined specifically for the proportions of colonies from ecological groupings such as leaf surface fungi and soil fungi. In the analysis of dust for culturable fungal colonies, leaf surface fungi constituted a considerable portion (>20%) of the total colonies in at least 85% of the samples. Thus, replicate dust samples with less than 20% of colonies from leaf surface fungi are unlikely to be from buildings free of moisture or mold growth problems.
Gao Feng-yin - One of the best experts on this subject based on the ideXlab platform.
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Comparison study on measures to improve Water Damage resistance of asphalt pavement
Highways & Transportation in Inner Mongolia, 2020Co-Authors: Gao Feng-yinAbstract:Improving the Water Damage resistance of asphalt pavement has a great significance to improve the quality of asphalt pavement.Through Water stable performance testing comparative analysis of asphalt mixture prepared by adding anti-stripping agent in the surface of a certain concentration of hydrated lime processing stone and asphalt,the results showed that: compared with the substrate mixture,hydrated lime processing technology and mixed with anti-stripping agent technology both can improve the Water Damage resistance of mixture,the former increased by 14%,the latter increased by 18%,the latter is better.However,from a mechanical point of view,the improvement effect of hydrated lime treatment is better than the anti-stripping agent technology.
Roger H Newman - One of the best experts on this subject based on the ideXlab platform.
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auto accelerative Water Damage in an epoxy composite reinforced with plain weave flax fabric
Composites Part A-applied Science and Manufacturing, 2009Co-Authors: Roger H NewmanAbstract:Abstract Water diffusivity was measured through 12 wet–dry cycles, for epoxy resin reinforced with plain-weave flax fabric. Electron microscopy revealed micro-cracks that provided routes for Water uptake. Water Damage was characterised by the volume of pores, expressed as percent of the total volume of the composite. Water diffusivity doubled for every increase of 2.3% in the volume of pores, until a plateau was reached after several cycles, when Water diffusivity was 10 times as great as on first immersion. The amount of Water absorbed by the flax–epoxy composite was an order of magnitude larger than that reported for unsaturated polyester resin reinforced by plain-woven E-glass fabric, yet the extent of Water Damage and associated changes in diffusivity were similar. Results were consistent with a Damage mechanism in which both flax fibres and matrix become swollen when wet, but the fibres shrink faster than the matrix when dried.
