Research assignment and Setting out

Yesterday we started off the day with a research assignment on formwork ply and concrete. Formwork ply was very hard to research as there was only sites that wanted to sell the formwork ply and they didn't give a very detailed descriptions on usage, storage and installation processes. I found researching concrete rather interesting, especially looking up reinforcing and the ways in which steel rods in concrete make the concrete stronger. Concrete and steel have the same temperature expansion rate so there is little if any internal stresses, and the alkalinity of concrete due to the lime, slows and even stops steel rusting. Concrete has great compression strength and the steel adds great tensile strength to the concrete allowing arch ways and horizontal beams of reinforced concrete to be utilised.
After this we then moved on to setting out a full scale, albeit, small house plan in the very back area of the Tafe campus, next to the horticulture section. On the first day we managed to assess what tools we needed and carried them out to the site, what timber we would require for stumps and hurldes, and also what house plan we were going to use.
To start off with we measured 90mm off of the existing fence line there and ran a string line parallel with it all the way to the back fence. We then measured 7m in from the back fence, along the string line we just put in place, and then 2m perpendicular inwards from the 7m point and placed a stump. This stump represented the corner of the house. Then we measured exactly 13070mm from that stump, running 2m parallel from the string line, and placed another stump.
As the back existing fence was not 90 degrees with our string line we had to use another method to obtain the two other corner points of the house.
What we did was use pythagoras thereom and used the diagonal or hypotenuse lines and the horizontal lines to form a triangular point of two measurements. The square root of (13070 squared + 16150 squared) = 20776. So we ran a tape off of one existing stump that we knew was right, at a 90 degree angle (roughly) at a distance of 16150, and then ran another tape from the existing corner stump at a distance of 20776. We then moved the two tape measure lines until both the measurements, 20776 and 16150 met each other, and then we banged in a stump. We repeated this process again but using the two existing stumps in the other way. This worked out perfectly and as i was the one who came up with the idea, i felt rather pleased and satisfied with myself.