MEs,
Looking to find out what is involved in upgrading commercial HVAC systems to HEPA filters. Just trying to get a feel for the magnitude of this kind of effort, so I can come up with a ROM. Currently have a variety of systems: Trane, Carrier, CoolAir, and AAON, with filters in the MERV 8...
Several DOTs have the standard requirement, that aggregate base course be placed with a moisture content within 2% of optimum. Was discussing the reason for that requirement, with a co-worker recently. So, why is the standard set at 2%? Why not 1.5%, 2.5%, or 3%?
On a 130-180 gal wetwell for a sewage grinder pump, from what I have been able to gather (and this is not my field) it seems like Fiberglass Reinforced Polyester has been the material of choice. However, they also come in HDPE. What are their any benefits to choosing one material over the other?
Looking for some input on who puts on good continuing engineering/P.E. training seminars/courses in transporation or facility construction & design. My employer will pay for one course & travel per year. The course I wanted this year fell through, so now I am looking for a new one. Any...
Looking for comments/feedback on a contractor requested design change for the HMA base course on a 12,000 ADT roadway. They want to use a 3/4" mix, instead of the specified 1" mix for the base course.
Can anyone provide some insight on the pros/cons of one gate valve over another for water distribution systems? If I remember right, when I worked for a county water utility (along time ago), they almost exclusively specified double disk gate valves in new construction.
What's the consensus, it is common practice in facility (vertical) work to state elevations with negative values on design plans? I think not, but I'd like to hear what others have seen/done.
Does anyone know how to get dashed lines to display as dashed lines in paperspace, in ACAD 2006? All lines are continuous in paperspace, but I have some dashed in model space. Come to think of it, differing line weights also don't show in paperspace.
How can I get a drawing border template to show up in model space? I'm a new user, running AutoCAD 2006, and when I open a drawing template, which is a preinstalled sheet border (e.g. 11" x 17", or ANSI B), it only shows up in paper space. I've tried saving it under a different name, and I still...
Anyone have experience with mix-in-place asphalt pavement recycling? Does it work well? Do you recommend it? Any pitfalls to look out for?
Also, is an injected emulsion additive necessary, or can this be done dry with water mixed in to get proper compaction?
I'm considering using it on a 2...
Looking for thoughts/experiences on part-time work with an engineering firm. I have a full-time job that I am happy with, but would like to get something part-time to supplement my income, gain some new experience, and perhaps put my PE to work. All my experience is with county, state, and...
I'm sure this is a simple question, but I just moved into the design/traffic engineering world after years in construction project management. Can someone tell me where I can find information on how to decide when a sidewalk is warranted on a secondary road?
