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Site Visit <strong>Muscat</strong>, <strong>Oman</strong> <strong>16.09.2012</strong><br />
Project: Public Authority of Crafts & Industry, Al Adrak, M760 DHB, floor screeding<br />
PMM / Jochen Knecht <strong>16.09.2012</strong><br />
<strong>Muscat</strong>, <strong>Oman</strong>, <strong>16.09.2012</strong><br />
Local dealer: International Heavy Equipment<br />
Customer / Contractor: Al Adrak Trading & Contracting Co LLC
Site Visit <strong>Muscat</strong>, <strong>Oman</strong> <strong>16.09.2012</strong><br />
Project: Public Authority of Crafts & Industry,Al Adrak, M760 DHB, floor screeding<br />
Building:<br />
- 6 storey building<br />
Commissioning the M760 DHB on site:<br />
- M760 DHB, year 2012<br />
- 5 pcs. ID65 hoses à 20m = 100m<br />
- Aluminium 3-pod output stand<br />
Screed material (site mix)<br />
- Washed sand 3/16’, moist condition 0-4mm<br />
- OPC (cement)<br />
- Water<br />
- chemical additive: NO<br />
PMM / Jochen Knecht <strong>16.09.2012</strong><br />
sand<br />
0-4mm washed, moist condition<br />
cement<br />
water<br />
<strong>16.09.2012</strong>
Site Visit <strong>Muscat</strong>, <strong>Oman</strong> <strong>16.09.2012</strong><br />
Al Adrak, M760 DHB, floor screeding, Project: Public Authority of Crafts & Industry<br />
Recipe and operation:<br />
1. Start the machine with the mixer “ON”<br />
2. Fill 50% of the 260l vessel with moist sand (6 buckets)<br />
2. Add 1 bucket of water (7l)<br />
3. Add 50 kg of cement (3 buckets)<br />
4. Add ½ bucket of water<br />
5. Fill vessel with the rest of the moist sand<br />
! If the sand is not moist, add more water accordingly !<br />
6. Mix for 2 min.<br />
7. Make sure the red and blue handle are in “1:30h” position<br />
8. Close the vessel and start pumping<br />
Check vessel pressure at the lower pressure gauge:<br />
It should climb to 3-5 bar<br />
a. If it is less than 3 bar:<br />
- increase vessel pressure (turn blue handle upwards)<br />
- and reduce pipe pressure (turn red handle slightly downwards)<br />
b. If it is more than 3 bar<br />
- reduce vessel pressure (turn blue handle downwards)<br />
- increase pipe pressure (turn red handle upwards)<br />
PMM / Jochen Knecht <strong>16.09.2012</strong>
Site Visit <strong>Muscat</strong>, <strong>Oman</strong> <strong>16.09.2012</strong><br />
Result: Semi-dry floor screed<br />
1. Mixing 2. Pumping to 5th floor,<br />
100m delivery line ID65mm<br />
Tip: Add a “water reducer”<br />
chemical to the mix (approx.<br />
0,25l/vessel load).<br />
⇒ less water in the mix<br />
⇒ therefore less cement required<br />
⇒ less cracks<br />
⇒ easier pumping<br />
⇒ better compaction & strength<br />
⇒ quicker drying time!<br />
Tip: Minimum every 15-20m :<br />
Place a loop with the mortar<br />
hoses in order to ensure the<br />
requested “pocket-delivery”.<br />
Tip: Cover the finished screed for<br />
approx. 5-7 days with plastic foil<br />
to ensure a slow curing process<br />
-> less risk of cracks<br />
PMM / Jochen Knecht <strong>16.09.2012</strong><br />
3. Placing on 5th floor<br />
Perfect semi-dry screed mix!
Site Visit <strong>Muscat</strong>, <strong>Oman</strong> <strong>16.09.2012</strong><br />
Thank you!<br />
Putzmeister Mortar Machines – Rep Office Middle East<br />
P.O. Box 454720<br />
Elite Business Centre, Office 210<br />
Al Barsha 1<br />
Dubai – U.A.E.<br />
Contact:<br />
Mr. Jochen Knecht<br />
knechtj@pmw.de<br />
+971 55 4710 229<br />
PMM / Jochen Knecht <strong>16.09.2012</strong>
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