Wednesday, July 06, 2005

Our house is rising above ground zero

Today marks our fifth day in Banda Aceh, and our fourth day of work in Tibang Village. We continued to cut more steel bars, bent even more steel rings, and tied them all together. The work was getting monotonous, but all of us were beginning to get increasingly proficient at it. :)

Meanwhile, the local skilled workers and the home-owner of land plot #118 began to saw pieces of kayu (wood) and then carefully placed around the foudation of the new house. Our reinforcement bars, complete with steel rings, were then placed between adjacent pieces of wood.

Once the wooden planks and steel reinforcements were in place, we were instructed to make a fresh cement mixture. This time, the ratio was to be 3 wheelbarrows of sand : 2 wheelbarrows of gravel and stones : 1 pack of cement. And this time, we were told to make the mixture really, really wet. It became clear to us later on why it had to be really, really wet - of almost 'diahorrea' consistency, as one team member jokingly commented. The reason was this: we needed to ensure that the cement mixture flowed fluidly into the mould (formed by the wooden planks) so that as few air bubbles as possible were formed or were trapped inside. If any such bubbles were left behind, they could become moisture traps, and when moisture accumulates in these voids, it could cause the steel reinforcements to corrode and thereby compromising on the structural integrity of the building.

Laying the reinforcements
Some of the local skilled workers fixing the steel rings to the steel bars



Sawing wooden boards
Home-owner of land plot #118 sawing wooden planks



Synthesis of wood and steel
The wood serves as a mould for the cement.



Cemented!
The cement had already been poured into the mould, covering the reinforcements.

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