Damaged-down Abilities: Mud Bricks
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I made a brick mold that makes bricks 25 x 12.5 x 7.5 cm from wood. A log was split and mortise and tenon joints were carved using a stone chisel and sharp rocks. The mold was lashed together with cane to prevent it from coming apart when used.
Next, I made a mixture of mud and palm fiber to make the bricks. This was then placed into the mold to be shaped and taken to a drying area. 140 bricks were made.
When dry, the bricks were then assembled into a kiln. 32 roof tiles were then made of mud and fired in the kiln. It only took 3 hours to fire the tiles sufficiently. The mud bricks and tiles were a bit weaker than objects made from my regular clay source because of the silt, sand and gravel content of the soil. Because of this, I will look at refining mud into clay in future projects instead of just using mud.
Interestingly, the kiln got hot enough so that iron oxide containing stones began to melt out of the tiles. This is not metallic iron, but only slag (iron oxide and silica) and the temperature was probably not very high, but only enough to slowly melt or soften the stones when heated for 3 hours.
The kiln performed as well as the monolithic ones I"ve built in the past and has a good volume. It can also be taken down and transported to other areas. But the bricks are very brittle and next time I"d use better clay devoid of sand/silt, and use grog instead of temper made of plant fiber which burns out in firing. The mold works satisfactorily. I aim to make better quality bricks for use in furnaces and buildings in future.
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Transcription
Cutting timber Stuck on branches Measuring 50 cm Splitting wood with stone chisel Carving tenons (a type of carpentry joint) The two ends of the mold Carving mortises Assembling mold Lashing with cane to hold it together.
Clearing weeds Water Digging mud pit Palm fiber stops mud cracking as it dries Forming a brick Setting out bricks to dry Stacking semi dry bricks Making half bricks by cutting with bark fiber string 140 bricks were made.
Assembling bricks into a kiln Fire box level Ware chamber level Plastering kiln with mud Making fire Drying out kiln Ash Making tiles from mud (not clay) 30 tiles drying.
Tiles in kiln Covering with broken tiles Half an hour in 1 hour 1.5 hours 2 hours 2.5 hours 3 Hours Finished. Closing up kiln (stops cold air getting in).
The next day Stones in the tile melted slightly due to the heat The mud was high in sand and silt so there were 7 broken tiles They can be used as grog next time Tiled roof over kiln Brick and mold
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Author: Author Link: Youtube Link: https://www.youtube.com/watch?v=D59v74k5flU Category: Channel Name: Primitive Technology Channel ID: 22 Tags: primitive,mud,bricks,
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7 thoughts on “Damaged-down Abilities: Mud Bricks”
Own u ever injure urself badly, needed to lower off recording and gain clinical beef up? I ponder ..
I don't endure in mind how I learned his channel however I'm so cosy I did
Where the fuck enact you reside to gain wood adore that i’m jealous
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After searching on the most up-to-date video on mud bricks, it's challenging to test help at this earlier formulation. The new formulation has a less complex job, which appears to be like to be adore moderately a puny bit less effort. He eradicated a range of steps (adore the palm fiber and plastering the kiln) that he presumably now recognizes as needless. He also figured out where to get better clay (two grades – pleasing simply clay for better bricks, and horny clay for pottery).
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