|
- Ignition timing for Methanol vs Gasoline | Eng-Tips
My company has recently built a drag car that uses methanol fueling and high boost pressure We are having some problems with burning through the head gasket, which I believe is due to an over conservative timing map Some info on the engine are: 3 liter of displacement (Toyota 2JZGTE), 40+ psi
- Top or Bottom of Footing? | Eng-Tips
Frost depth always has been and should be to the bottom of the footing You are trying to avoid a condition where frost occurs in the soil directly under a footing and in which case the soil expands (or rather the moisture freezes and expands within the soil matrix) and dislocates the footing
- Floating slab on grade detail at exterior door | Eng-Tips
I will probably continue to show a floating slab with an expansion joint between the slab and the typical exterior wall, and then show a downturn thickened slab edge bearing on either a short foundation stem wall (frost wall I guess you guys and or gals call it up north) or directly on the footing
- Can foundation weight allow avoidance of frost depth? | Eng-Tips
A contractor is suggesting the use of 1ft deep, very wide concrete slab to support heavy rotating equipment The local jurisdiction has a required frost depth 42in Can a very heavy foundation (while still below the allowable bearing capacity of the soil) eliminate the need to go below the 42"
- Frost box? | Eng-Tips
A "Frost box" is probably a term for a variation (enhancement) of the sheet insulation over the pipe, where vertical insulation is placed along the pipe to better protect the pipe contain the heat
- How to insulate a shallow water line | Eng-Tips
The frost line here is approximately 42" and the water within the sprinkler system will not be flowing unless there is a fire in the building, so we believe that there is a real pottential for the water within the line to freeze My question is: how can i determine an R-value for the soil above the water line?
- Frost Line for Grade Beam with Piles | Eng-Tips
If piles are driven, with a concrete grade beam poured over the pile cap, does the bottom of the grade beam have to be poured below the frost line, or having the piles driven below the frost line complies with placing foundations below the frost line
- frost heave | Eng-Tips
Frost heave! The evil twin brother of Canadian winters I did not realize that frost penetration was such that frost heaving was a problem N C The heaving occurred due to the behavior of different soil types (residual moisture, composition properties) to freezing To heave to a level whereby accesses were blocked thats a water problem, not "heaving" per se The underlying soils must have
|
|
|