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  • Users: roscoe
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  1. roscoe

    Steel Moment Frame Connection

    I am designing and building a residence less than 2 km from a type A fault (The Hayward Fault). This will be a home constructed in the hills on an upslope lot. The front of the house requires a steel moment frame with two columns W12x31 and two beams W12x87 (one at the 1st story and one at 2nd...
  2. roscoe

    Bird Baths/Low Spots in AC Paving

    Does anyone have a good method of quality control of "bird baths" or low spots in Asphalt Concrete Paving construction. I am supervising the construction of some roads, and have found some bird baths after the paving was already complete. I would like a method of either preventing it...
  3. roscoe

    Stiff Clay Subgrade Preparation

    We are constructing an AC Pavement sport court (2" AC with 4" base rock). The subgrade soil is stiff, thick adobe clay. The spec calls for scarifying 8 inches of the subgrade, and conditioning to a moisture content that will allow for compaction to the specified (90% MDD). Based...
  4. roscoe

    AC Parking Lot - Grind/Deep Lift/Overlay

    I am supervising a job which has as part of the scope of work the re-surfacing of an old AC parking lot. The existing parking lot is approximately 4" of AC over about 6" of base rock. The subgrade soil profile is thick, firm adobe clay. There is a lot of aligator cracking in the...

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