Tom Rampart

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since Aug 15, 2012
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Recent posts by Tom Rampart

Epoxy is absolutely easier. For me the nearest epoxy is a day's travel and the DIY furnace makes do with what we have, disposing of plastics in a useful manner.
12 years ago
Wooden posts - fence or column - conduct water upward when placed in the natural upright position in which it grew. Reversing the position - small end down, large end up - minimizes moisture conduction.

Due to the abundance of termites in our area - East Africa - we plastic coat the portion of posts to be placed in the ground. We scorch the ground end of a post over a fire - not burn, just scorch. Then we wrap that portion with plastic grocery bags and heat the wrapped end over a fire. If the plastic ignites and burns - too hot. Just want it to melt/shrivel and adhere to the post. Another technique is to heat oil in a cauldron and put chipped plastic in the oil. If the plastic ignites, the oil is too hot. The plastic melts and floats on the oil. Depending on the grade of plastic, you will get a thick liquid or a glob. If liquid, the post end can be dipped into the floating plastic and the plastic adheres. If globs, it can be smeared on the end of the post using a flat spatula-like stick. (For long-term permanent structures, we set the posts in concrete. The plastic treatment is used for long-term temporary. Posts used to last less than a year before termites hit them. They do not bother the plastic lined posts, but have attacked some above ground.)

Caution: There is serious potential for severe burns when melting plastics in hot oil. Make certain the vessel is stable. There is very little fume/toxic gases released by melting plastic but smoke from burning plastic is hazardous. Err on the side of caution, wear a mask.
12 years ago
The smoke coming from the refuse burn barrel into the rocket is gray to black with a noxious chemical odor similar to the smell of road construction crews applying hot asphalt. The exhaust on the flue end of the rocket is clear, an intense heat shimmer with no visible smoke - which is not to say there are no gases, but no discernable exhaust. The 10-gallon barrel rocket uses an inverted T-burn tube. Small wood burns cleanly in the main fuel/air intake of the T. When the rocket is hot, the burn barrel is ignited and the exhaust chimneyed into the 2nd air/fuel port of the rocket. There is usually 3 to 5 seconds of gray smoke turning to white smoke and then clear exhaust. As the smoke from the burn barrel flows into the hot rocket burn tube, the wood fueling the rocket can be reduced but a minimal wood fire must be maintained to combust the exhaust from the burn barrel.

After incineration, there is a crust of almost weightless charcoalish residue in the burn barrel. (Similar to the charcoal produced when burning dried manure.) That is crushed and mixed with gravel on lesser used walkways. There is no concern about impacting local air quality - we are a few thousand people in many thousands of remote acres in East Africa where most people still believe in burning crop residue instead of composting. Our concern is for doing the right/best thing by the earth and minimizing our own carbon footprint. We do not burn food grade plastics; they have their uses. Most of the burnables are plasticized paper on the outside with a thin foil interior, such as juice carton and long-life milk cartons, and other commercial packaging combining paper and clear plastic. Even the juice/milk cartons have their uses, such as quilted into a thermal blanket barrier between ceiling and roof and as solar reflectors, but eventually we run out of places to use them.

I am wondering if would be better to bale and bury them? Biodegrading is very very slow and baling would make it even slower but keep them in one small area.
12 years ago
We recycle or compost. Of necessity (lack of resources) we waste nothing. Example, even metal caps from soda/beer bottles are hoarded, reamed for use as washers or reinforcement when driving nails. Plastic bottles are heated and melted to the below-ground portion of posts or stored in ingot form to be later cut as shims or spacers. But still there is some waste generated, such as cellophane and pasticized paper that will not compost. The options seem to be burn or bury. We incinerate, a burn barrel (bottom air feed, stovepipe chimney) with the chimney feeding into a secondary air intake on a wood-fed rocket stove in an attempt to burn (harvest) the smoke and minimize release of toxics into the atmosphere. The heat is not wasted and applied to various functions. Question: Can you suggest alternatives?
12 years ago