Transportation
- Littleboy
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Re: Transportation
They get rid of alot of the humidity. Makes tower lighter by reducing humidity it is exposed to.
Humidity=unnessesary weight
Last year at state, it was very humid and some of my major pieces of the bridge warped and it was way weaker.
For more info visit: http://www.sud-chemie.com/scmcms/web/page_en_6264.htm
We use a plastic suitcase with foam and these bags. It is hard, strong, no one can see our structures, and for a variety of other obvious reasons.
Humidity=unnessesary weight
Last year at state, it was very humid and some of my major pieces of the bridge warped and it was way weaker.
For more info visit: http://www.sud-chemie.com/scmcms/web/page_en_6264.htm
We use a plastic suitcase with foam and these bags. It is hard, strong, no one can see our structures, and for a variety of other obvious reasons.
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Re: Transportation
If your tower is weight critical, that is very light, say less than 6 grams, moisture could increase its weight because balsa is highly hygroscopic Dissecant bags absorb this moisture before balsa can absorb it itself. If your tower is over 7 grams, I would not worry too much, unless you live in a state with high relative humidity (like HW, FL, and other Southern states this time of the year).
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Re: Transportation
if humidity is absorbed to balsa wood, whats the relationship between the weight of the tower and how much weight is added?Freyssenet wrote:If your tower is weight critical, that is very light, say less than 6 grams, moisture could increase its weight because balsa is highly hygroscopic Dissecant bags absorb this moisture before balsa can absorb it itself. If your tower is over 7 grams, I would not worry too much, unless you live in a state with high relative humidity (like HW, FL, and other Southern states this time of the year).
- Littleboy
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Re: Transportation
Depends on how much humidity is in the air and the amount of balsa and densitys (and a few more factors that i can't think of off the top of my head) of the wood.soccerkid812 wrote: if humidity is absorbed to balsa wood, whats the relationship between the weight of the tower and how much weight is added?
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Re: Transportation
I read you live in GA, and the relative humidity outdoor there is high, in a building it will be considerably less... Balsa wood is exposed long enough will absorb water to be in equilbrium with the surrounding environment. I would check in a pharmacy , wallmart or other similar shops if the sell silica gel sacks... they are cheap...
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Re: Transportation
ok thanks, ill definitely look into thatFreyssenet wrote:I read you live in GA, and the relative humidity outdoor there is high, in a building it will be considerably less... Balsa wood is exposed long enough will absorb water to be in equilbrium with the surrounding environment. I would check in a pharmacy , wallmart or other similar shops if the sell silica gel sacks... they are cheap...
- Kokonilly
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Re: Transportation
now that this event is not an impound, it seems to be a good idea to use Silica Gel Desiccant bags. however, i heard that they actually can weaken the glue at joint? does anyone know what im talking about?
EDIT: @^ i think humidity can account for 5-10% of the weight but the tower will regain it pretty quickly.
EDIT: @^ i think humidity can account for 5-10% of the weight but the tower will regain it pretty quickly.
West Windsor-Plainsboro High School South
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Re: Transportation
about how long does it take to regain?iYOA wrote:now that this event is not an impound, it seems to be a good idea to use Silica Gel Desiccant bags. however, i heard that they actually can weaken the glue at joint? does anyone know what im talking about?
EDIT: @^ i think humidity can account for 5-10% of the weight but the tower will regain it pretty quickly.
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