Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-6-1305-0432-8 |
Объём: | 100 страниц |
Масса: | 172 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
High Quality Content by WIKIPEDIA articles! A sandbag (floodbag) is a sack made of hessian/burlap, polypropylene or other materials that is filled with sand or soil and used for such purposes as flood control, military fortification, shielding glass windows in war zones and ballast. Advantages are that burlap and sand are inexpensive, and that the bags can be brought in empty and filled with local sand or soil. Sandbags may be used during emergencies when rivers threaten to overflood, or a levee or dike is damaged. They may also be used in non-emergency situations (or after an emergency) as a foundation for new levees, or other water-control structures. Sandbags are not always an effective measure in the event of flooding because water will eventually seep through the bags and finer materials, like clay, may leak out through the seam. After usage, dry sandbags can be stored for future use. Wet bags need to be disposed in a landfill as they may be contaminated by chemicals and fecal matter.
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.