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 Post subject: Rammed Earth
PostPosted: Sun Feb 05, 2006 4:49 pm 

Joined: Sun Feb 05, 2006 3:46 pm
Posts: 2
Location: Gippsland, Vic
Hello all,
We are the reluctant vendors of a 6 YO rammed earth house
I took off 12 months to build our 33 sq loft style house in Tyers, Vic
We designed the house on a gothic cathedral plan (cross shaped), it has a 300mm thick perimeter brick wall to level and 3.0 m rammed earth above that, the upper level ext walls are weather board. There is a rammed inner wall at 3.0 m height, it gets heated by the winter sun and helps reduce our costs. All floors are T&G timber on stumps, bearers & joists.
The main structure is bush posts (squared on a transportable Lucas Mill)
with double 240 x 45 F17 KDHW beams supporting self made trusses @ 5.4m span.All posts on grid line set out.
The roof frame was made on the ground in 6 seperate sections then hoisted into position by crane. The locals were amazed to see a roof on in less than a day.
A friend and I set up vertical forms (jambs) at the window openings then set 525mm high forms between windows and commenced ramming.
The rammed earth mix was arrived at, after much testing .
We aquired 3 different base materials, 2 from local quarries, and 1 from an ancient river bank (Latrobe River) at the rear of our property. The most succesful was the Latrobe River material, Testing to 7.5 Mpa after 21 days (approx. equivalent to mortar), the other 2 did not get to 3 Mpa. It was mixed with cement 5% by volume. On hot days we added water, otherwise it was moist enough. On wet days we could not ram.
More about that later
I made all my own cedar windows, (cheaper to buy Raw materials with THICNESSER & PLANER than buy windows from retailer) Ok if you have the time.
All carpentery done by myself (in fact I have not yet finished)
We have a successful Olive grove as well.
I'm happy to answer questions



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