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A sandbag is typically used in flood control, but the exact use can vary.

Sandbags are burlap bags filled with sand or soil, in an amount that a person can carry from where it is filled, to where it will be used. The use most people are familiar with is water control during emergencies, when rivers are threatening to flood outside their normal channel, or if a levee or dike is damaged. However, sandbags often are used in non-emergency situations (or after the emergency has passed) as the foundation for new (or just higher) levees, or other water-control structures. Many people find sandbags ineffective at holding back water during floods, as neither sand nor dirt will actually stop water from flowing through it, and finer materials such as clay will oftentimes run out of the bag's wideley-spaced threads.

In military science, sandbags are also used for field fortifications, or as a temporary protective measure for civilian structures. Because burlap and soil are very inexpensive, quite thick protective structures can be erected cheaply. The friction generated between moving soil or sand grains, and the multiple tiny air gaps, also make sandbags quite efficient dissipators of explosive blast. Sandbags used in fortification generally have dimensions carefully calculated so that the finished bags can be interlocked like brickwork, and are of such a weight as to maximise the efficiency of manual labour in filling and laying them. They may be laid in excavated defences as revetment, or as free-standing walls above ground where excavations are impractical. Plain burlap sandbags deteriorate fairly quickly, so if it is anticipated that a sandbag structure will remain in place for a long time, it may be painted with a portland cement slurry to reduce the effects of rot and abrasion. Cotton Ducking sandbags last considerably longer than burlap and therefore are used for long-term placement of sandbags. However, the vast majority of sandbags used by the US Military and for the prevention of flooding are made of circular woven polypropylene.

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Materials and Supplies :: Landscaping
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Curious if there are any fellow fans of the old tv series #Sandbaggers here...
jimmmers (Jim Mason) Thu, 05 Nov 2009 19:14:48 -0000
Curious if there are any fellow fans of the old tv series #Sandbaggers here...
Willie Caine from Sandbaggers is my favourite intelligence agent ever. And Burnside is my favourite man-behind-a-desk.
theronster (Aaron Abernethy) Tue, 03 Nov 2009 13:28:33 -0000
Willie Caine from Sandbaggers is my favourite intelligence agent ever. And Burnside is my favourite man-behind-a-desk.
@theronster my interest was writing an ARG. Sandbaggers was, for me, intelligent dialogue pretending to be TV
cimota (Matt Johnston) Tue, 03 Nov 2009 10:49:58 -0000
@theronster my interest was writing an ARG. Sandbaggers was, for me, intelligent dialogue pretending to be TV
@cimota If you like it you should check out the comics series Queen & Country - it IS Sandbaggers, set today. S (cont) http://tl.gd/qsi0
theronster (Aaron Abernethy) Tue, 03 Nov 2009 10:44:53 -0000
@cimota If you like it you should check out the comics series Queen & Country - it IS Sandbaggers, set today. S (cont) http://tl.gd/qsi0
Watching The Sandbaggers again. Any fans here? It's one of my favourite TV series of all time. I may write a wee blog post about it soon.
theronster (Aaron Abernethy) Tue, 03 Nov 2009 10:38:13 -0000
Watching The Sandbaggers again. Any fans here? It's one of my favourite TV series of all time. I may write a wee blog post about it soon.
On a lighter note, would like to hear from US golfers that have attended the World Am in Myrtle Beach SC. Even the sandbaggers.
tom_idtheftguru (Tom McCain) Tue, 03 Nov 2009 01:32:32 -0000
On a lighter note, would like to hear from US golfers that have attended the World Am in Myrtle Beach SC. Even the sandbaggers.

 
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404 C-Mac Industries (Aust.) Pty. Ltd. - Makes, sells sandbagging machines: Ezi-Bagger mobile, fixed, electromagnetic vibrator, two chutes; Quicksander dump truck mount, hydraulic conveyor, two chutes, also can backfill trenches, surround spills. New South Wales, Australia.

EZ Bagger - Lightweight, one man, one scoop, combination shovel scoop funnel bagger sandbag filler; product description and images contact, links. Massachusetts, USA.
Meta Description: [ EZ Bagger - the ONE PERSON sand bag filler! ]

Floodline Sandbagging Service - On site sandbag filling service can fill 2000 bags per hour, for scheduled (e.g., construction) or emergency (e.g., flooding) uses; 15 minute set up time, 24 hour operation. Goes anywhere in North America. British Columbia, Canada.

Hogan Manufacturing, Inc. - Makes, sells Speed Sandbagg'r manual or automatic sandbagging systems, speeds process of deploying sandbags to counter floods, used by military where speed and precision is needed. California, USA.
Meta Description: [ Hogan Mfg., Inc. is on eof the most diversified steel fabricators in the Western United States. Our areas of expertise include : Structural Steel, Plate Steel, Production and Assembly Faclilities and Wheel Chair Asseccability. ]

Megga-Bagger - Makes, sells portable automatic baggers, vibrating hopper, 1,600/3,200 bags per hour, interchangeable; Bag Lady woven polypropylene and burlap sandbags. Washington, USA.
Meta Description: [ sandbags, bagging machines, sandbaggers, burlap bags, polybags, erosion control, baggers, manufactures, flood control, automated bagging systems, bagging equipment, sand bags for sale, poly bags ]

PinerWorks Product 3D - Makes, sells GoBagger lightweight, one man, one scoop, combination shovel scoop funnel bagger sandbag filler; product description and images, how to, media, FAQs, order, contact, company information, links. California, USA.
Meta Description: [ Sandbag Filler -The Gobagger is the Worlds Only one man Sandbagging System. Now one can do the work of two. Designed Especially for Flood Control. ]

The Sandbagger Corp. - Makes, sells manual and automatic sandbagging systems; lightweight, easy to transport, civil and military uses, faster and safer than shovels. Illinois, USA.
Meta Description: [ Sandbagger - Fills up to 1600 sandbaggs per hour.The company's biggest customers are the military and local, state and national emergency management departments. Sandbaggers are also used to fill bags for erosion control and for holding down construction or police barricades ]

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