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Does anyone have experience with using a Dry Fogging system for controlling dust at conveyor transfer points? It appears to be gaining a presence in heavy industrial environments but I've only heard feedback from vendors not the end users (waiting on references). Our application will be inside a...

Thanks CarlB. I was looking for a code to reference. As far as the pile igniting 10 months later, it sounds like we need to turn over and manipulate the pile at some frequency. Thanks for the recommendation TigerGuy.

Hi All, I'm not finding the reading material I'm looking for online so I was hoping someone here could shed some light on a situation. During a grubbing project completed January 2023, mulch piles were kept below the maximum height (~50') and the advised Length and Width(I forget these...

SlideRule, There is no soils report in this area so I use 1,500 psf in this area. Emmgjld, A cantilevered support is a great idea, minus the hot tub lol, this would provide a few feet between the footings and the leach line. Still, I would feel alot better about it if there is some design...

Hi Guys, I had a customer request that I design an independently supported deck for their front yard, the issue is that there is a leach field that parallels the house 10’ away. This is where the outside of the footings will be. The county has setback requirements saying “all buildings or...

Thanks for the reply's everyone, alot of good information to digest. To clarify a few things: As KootK stated analyzing the wall base as a pinned connection is a convenient fantasy, but somewhat real since the bond from the mortar has not ruptured yet.I was originally thinking this connection...

phamENG I'm referring to Hollow Core Masonry Units as JAE stated.

Hi All, I was called by a potential client about a project. There is an old building that is being remodeled, the roof structure replaced of which the trusses will be supported by a ~10' tall HCMU Wall, keep in mind the building has been in this condition for some time now. The client...

Hi Guys, I've got a project I am working on that includes installing a new roof mounted HVAC Unit. I spoke to the HVAC manufacturer regarding the support stand and he said they will typically have the contractor fabricate a frame out of L1-1/2X1-1/2X1/4. After talking to the client again he...

@MJCronin thank you for this link. This system appears to be exactly what we are looking for. I have left a message with one of their sales reps and hope to hear back soon.

Hey Guys, I have a project we are working on that involves pumping Sulfuric Acid ~1,800 ft to a new tank. This will be a permanent install, the line will be 316L SS with sleeved inside a larger HDPE Pipe. We are in a preliminary engineering phase right now, we expect the SS pipe to be ~8"...

Thanks for the feedback guys. AUCE yes I was referring to only material cost, we do some fabrication in-house at my company so for this project that's all we're interested in. For contractors to installing painted CS platforms, handrails, stairways, ladders etc...I will typically use a $/ton...

Hi Guys, I'm working on an estimate and have outdated numbers for materials, what are the current material cost ($/lb) for structural shapes A992 Grade 50 and 316L? I work in Arizona, the last numbers I have for Grade 50 CS is ~$0.80/lb for Carbon Steel about a year ago and $2.68/lb for 304 SS...

Thanks guys.

Hi All, I recently purchased the Foundation Analysis and Design 5th Edition and found that it is in SI units. I would like to get the book in imperial but reading online reviews it indicates this edition is only written in SI, is that true? There is a red watermark on mine that says "Indian...

Interesting information regarding the rebar scanners. I'll keep this in mind for future/larger projects in heavy industrial environments. As for a status update, I checked the footings and a couple fail for flexure without the rebar. Talking to the contractor he has the forms made and extra...

The county had no record that there was even a home on the property, when the home owner purchased the property and requested to do some development to the land, when the county inspector showed up they had no records that a home existed there. I feel the homeowner should have pursued some...

I'm glad to hear this situation isn't as unique as I had thought lol. Dengr you hit the nail on the head, this place is about 45 minutes out of town, 3 miles down a private dirt road on it's own 20 acre lot. NorthCivil this is the same scenario as you described too, only the contractor is...

Hey guys, a little background on the situation that was brought to my attention today. Last fall I was approached by a homeowner who bought a property with a home on stilts (12 L4X4X1/4 on 12"X12"X12" footings). The supporting footings if you want to call it that were way undersized, access...

Hello Eng-tips, I was approached by a local Gym owner that would like to expand their operation. They own an ~100 years old adjacent building, the ceiling is too close to the floor for the equipment they would like to place in the gym and the walls are made of brick (opposed to brick veneer)...