air void การใช้

• By using vacuum impregnation on uncured epoxy, winding-to-winding, winding-to-core, and winding-to-insulator air voids are eliminated.
• The on-air void is being filled by Hamas and Islamic Jihad leaders in Beirut and Damascus.
• Improved binder durability is a result of higher bitumen content, a thicker bitumen film, and lower air voids content.
• Buoyancy in artificial floating reedbeds is commonly provided by polyethylene or polyurethane floatation foam, or polyethylene plastic containing air voids.
• Buoyancy in artificial floating reedbeds is commonly provided by polyethylene or polyurethane floatation foam, or polyethylene or PVC plastic containing air voids.
• Microwave imaging also can be used to detect any embedded anomaly inside concrete ( e . g ., crack or air void ).
• AEA surfactants are added into concrete mixes to impart stable air microbubbles to give air void volumes between ~ 5 %  10 %.
• PFC mixtures contain approximately 20 % air voids and they are typically placed only 1.5 inches thick therefore, the yield per ton of mix is relatively high.
• The intent is to create a contiguous surface by filling surface air voids and bugholes ( eliminating bughole-induced outgassing ), to level a surface with extreme rugosity, or to prep a surface for topcoating with a high-performance protective coating.
• Any external water source ( e . g . rain or seepage ) which can penetrate the micro cracks and air voids in set concrete, will readily carry the free Ca ( OH ) 2 in solution to the underside of the structure.
• In the case of sand, it could be water, which can be advantageous for measurement as the void fraction for sand saturated in water once any air bubbles are thoroughly driven out is potentially more consistent than dry sand measured with an air void.