We marked out the floor plan with marking paint directly on the foundation. We've had so many changes in the design- seeing it layed out on the ground helped a lot!
Phil and John (on the left) were the primary designers. You'll see in the photo above that we (Jeff and I, on the right) were filling bags before the design and forms were finished. I wrote about doing a lot of digging and screening in the last couple of weeks.
This is the screener (and Phil.) In the beginning, I scooped from the piles of dirt along the site directly onto the screen. The large rocks that were filtered out fell to the bottom of the screen and into a wheelbarrow (not pictured.) After a while, it was easier to shovel the dirt/clay into a bucket and pour that onto the screen. Someone would be on the other side filling bags with the finer clay/dirt mixture.
The first bags being layed were probably the most exciting, so far. There were six bags that we tamped and signed- Jessa, Phil, John, Adam, Jeff and I all got our own bags. (That's me in the picture, with Jeff and Adam's lower half.)
Our forms get a lot of questions from people who come to visit the site. Mostly, "Isn't that a small doorway?" The thing to understand about forms is that the earthbags will be stacked around them completely. Once the forms are surrounded and the arch is covered, the wood will be removed. The doorway that is in the middle of the (very large) wood arch is simply so that we can get from room to room when the walls get tall.
Each row gets two rings of bags. Each layer alternates (meaning that, in the above picture, the interior bags are vertical-ish while the exterior are horizontal-ish; for the next row, the interior will be horizontal and the top vertical.) The altering helps with structure- think bricks. In between each row of bags, we lay barbed wire. This is my favorite job on site, so far. In order to make the barbed wire stick, we have to individually poke each barb into the bags, alternating which side of the barb goes in.
We have had a lot of people helping to make the job go faster. (The picture above was taken at our end-of-day gathering.)We haven't been at Michelle's much over the last couple of weeks, but there was one day that Phil, Jessa, Nathan and I snuck out there to get the foundation trench ready for gravel to be poured in it. This involved making cement bases for our timberframe logs.
We had to cut cardboard tubes down to size, using lines and levels and such to make sure that they were all at the same level (since the ground has a 5 inch slope from one side of the building to the other, this was very important.)
Nathan and I mixed cement. Those are 80 pound bags, so Nathan did the lifting. I held the mixer to make sure that it didn't tip. Tough job.
(I have terrible posture, I realize.) Nathan would tip the wheelbarrow up, Jessa or Phil would hold up a funnel to help guide the cement that I hoed out. Then someone would use the trowel to smooth out the top. We later stuck some J-bolts in the cement (and then got rained and hailed on and got covered in mud and dirt.)(Today we were at John's. It was his birthday, so we had 3:00 rootbeer floats with the neighbors. Our fifth layer is done and our sixth layer is started, although, at the end of the day, we just filled bags. The electrical conduit was being placed between the fifth and sixth layer and it needs to be inspected tomorrow before we can continue placing bags. Jessa and I will be at Michelle's tomorrow and back at John's on Wednesday. Adam and Jeff are going to Florida, for different reasons, and Phil is in North Carolina on vacation with his family, so it will just be Jessa and I. Filling bags is somewhat time consuming, so Jessa suggested spending the later part of the afternoon filling bags- so we will have a stock ready for us Wednesday.)
Oh, and to clarify (because I was asked), "tamping" is compressing the contents of the bag (either using a large, flat bottomed chunk of cement ore a store-bought metal square with a broomstick-like handle) until the contents are very hard and bricklike. It requires a lot of repetitive lifting and thrusting downwards, but it works. Keeps the building solid.