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Rammed Earth Trails

Feb 11 2009 / Wednesday

adam baker bmx rammed earth dirt jumps build etnies

All you dirt jumpers and trail riders out there, give this a shot. If you have, you are ahead of me. If not, give it a shot. There are buildings made with the same procedure. This will make jumps last with little work. The elements can do what they please... your jumps will be standing strong.

Here is a quick definition:
Rammed earth, also known as pisé de terre or simply pisé, is a type of construction material. It is an age-old building method that has seen a revival in recent years as people seek more sustainable building materials and natural building methods. Traditionally, rammed earth buildings are common in arid regions where wood is in scarce supply. In the family of building materials, rammed earth is a first cousin to adobe. It was used to create parts of the Great Wall of China.

To create a jump, berm, roller, using rammed earth techniques, a builder pounds layers of moist, sifted soil - mixed with a small amount of Portland cement - into into a lip, landing, berm, or roller. This soil is tamped down until its volume has been compacted by approximately 25 percent. This is the same process that you would use if you where building a jump, it just has cement in it now.

The best mixture for rammed earth contains approximately 30 percent clay and 70 percent sand, with a small amount of cement added.

For all you that do not know, there is a big difference between cement and concrete. Cement is the glue in concrete. So when you go get bags of cement, make sure they are cement and NOT concrete, mortar mix, or anything else. Remember cement.

You may be thinking, "I'm not going to spend a ton of money on something when dirt is free." I agree. When you go to get cement you can ask the manager if they have any broken bags for cheaper. I bought about 10 broken bags of cement for $4 form home depot.

I have built 4 lips and landings now, using the rammed earth procedure and it is rad. Remember, anything that you put cement in will have a gray tint to it when it dries.

adam baker bmx rammed earth dirt jumps build etnies

adam baker bmx rammed earth dirt jumps build etnies

adam baker bmx rammed earth dirt jumps build etnies

Spring is almost here. Happy Building!

-Adam Baker


7 Comments Rammed Earth Trails

  1. http://vimeo.com/3182019

    Joey Cobbs
    http://joeycobbs.com/index2.php

    I am Joey Cobbs. This is a picture of me COLD. I shoot photos because I can't draw.............

    thibault plaza
    Posted: 5 years ago,
  2. you are so alsome i want to be like you when i grow up

    jacob dail
    Posted: 5 years ago,
  3. need to know all the details.percentages of type 10 to earth. need to know, how much water if the earth is damp.need to know,how much dye per unit ,whatever the unit and dye is.all the details!

    edward westphal
    Posted: 4 years ago,
  4. no way, i build jumps up Hackett woods every day, we got a real tough clay called Avon Red, its a beauty to work with and ive never thought of using cement, however, you got me thinking :) normally i build going by the 45 degree rule that states, when mud slopes, it will allways fall to 45 degrees, if stacked at more of an angle, gravity will just pull it back down, i want you to check out my jumps so i would really appreciate it if you got in touch. Skinny

    Skinny
    Posted: 4 years ago,
  5. where are those jumps at i would not mind hitting them with you guys. thay call me larry the crash test dummy i will hit anything the fist time and tell you what you need to do to make it smoother. or i will tell you the jump is great. if i could i would make money with my bmx i just do not have a good bmx comunity where i live in southern utah. that is a nice landing.

    nick wulfenstein (larry)
    Posted: 3 years ago,
  6. It is very interesting for me to read this post. Thanx for it. I like such themes and everything that is connected to this matter. I definitely want to read a bit more soon.
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    Kate Kripke
    Posted: 3 years ago,
  7. fart

    boogle
    Posted: 2 years ago,

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