We sincerely welcome you to contact us through the hotline and other instant messaging methods. Whether it's project consultation or feedback, we will serve you in the fastest way and spare no effort to save time for customers.
OBORTS Company, Opposite the residence of old General Mambou, Near Dragage, Bastos, Yaoundé, Cameroon
Email: [email protected]
stone ballast Typically requires crushed, graded stone placed over a stone filter sheet, rolled out over the insulation. In the field of the roof, a minimum of 10 lbs./s.f. ballast is required, with 20 lbs./s.f. needed at perimeters and at large penetrations.
Materials We Deliver. Clean fill dirt, white fill, surface sand, ballast rock, rip rap 3-6 inch, rip rap 6-12 inch, dot road base, screened topsoil, bank run shell, large shell, medium washed shell, small washed shell, mason sand, beach sand, 250 sand (paver sand), perc/septic sand (white sand), pavers base/screenings, concrete sand, rice rock, # 1 stone, # 2 stone, # 3 stone, # 4 stone, # 5
Limestone, # 4a ballast x 1-1/2" Used as Railroad Ballast- slightly large drainage stone Limestone, 1" crusher run x dust 1" Use for unpaved driveways, walkways, etc. Limestone, 2" crusher run x dust 2" Subbase for concrete & asphalt driveways, etc. Limestone, fine stone fill x 3" 6" For lining banks alongside roadways & creeks
Jan 12, 2006· The ballast has such a large thermal mass that the wet insulation below doesn't stand a chance in altering the temp of the stone over that area enough to produce a reliable scan. If the ballast has a thin enough coverage, like a wind scoured area with say a single layer of stones, or less, you may be able to see the wet areas signature bleed
Dec 02, 2019· While living in Florida, I accidentally became friends with a salvage diver and started doing repair work, etc. on his equipment. Two years later, I learned that he was actually a treasure diver. I left Florida 9 years ago, but were still friends to this day. I dont work on his equipment anymore,
Apr 17, 2020· The ancient stone balls were covered with a shiny layer caused by exposure to the elements over time, Assaf said. Curiously, this mother-of-pearl-like layer was different from the …
This ballast bulk bag gives a mixture of sand and stone ballast to be mixed with cement for concreting applications. Also suitable for other building projects such as to provide an even sub-base for driveways, shed bases and more. Minimum packed weight of 800kg +/- 5%; Can be used for multiple purposes; Can be used to fill voids in construction