prefabricated construction makes sense in a lot of ways, consider the following: <div><br></div><div>mortar constitutes a lot of water in weight, sometimes more than 50 percent. which means if you are lifting 20 tonnes to the 8th floor, you are hauling 10 tonnes of water which will eventually evaporate. </div>
<div><br></div><div>The structure is generally stronger. (the weakest point in a concrete structure is where the mortar and masonry meets. This is eliminated when all you have are beams, struts and ties. </div><div><br></div>
<div>The modular nature means each individual segment has room to expand and contract better than traditional construction which at times choose to contract at the wrong places. </div><div><br></div><div>Most of the labourious work that would be done dangling precariously is done at ground zero. </div>
<div><br></div><div>There is little wastage of material as prefabs are done to scale on site and in batch, so that for instance sections using a certain mix are all made at the same time... </div><div><br></div><div>etc etc etc. </div>
<div><br></div><div>  <br><br><div class="gmail_quote">On Tue, Nov 23, 2010 at 10:37 AM, Dennis Kioko <span dir="ltr">&lt;<a href="mailto:dmbuvi@gmail.com">dmbuvi@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
The Thika road contsructors have also been using pre-fabricated slabs, you can view and track their progress here: <a href="http://home.co.ke/index.php/forest-rdlimuru-rd-rndbt" target="_blank">http://home.co.ke/index.php/forest-rdlimuru-rd-rndbt</a>
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