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AASHTO T 310 - Nuclear Density Gauge - Field Testing

  Рет қаралды 132,168

Cttp Arkansas

Cttp Arkansas

4 жыл бұрын

This video provides a summary of test method procedures. For more information on this method, including calculations, please visit the CTTP online training modules here: cttp.uark.edu/online-training...

Пікірлер: 42
@sterlingsilver5937
@sterlingsilver5937 3 жыл бұрын
Videos like this may seem simple but I find them beneficial professionally. In the field, information is usually hard to come by.
@sibusisoxulu448
@sibusisoxulu448 3 жыл бұрын
true that
@arineey4538
@arineey4538 3 жыл бұрын
Dude i did this back in a college internship. Brings me back. I remember wearing a keychain thing that told us how much radiation (next to nothing) we got each day.
@2015_Rubicnn
@2015_Rubicnn 3 жыл бұрын
Dosimeter badge
@billkea7224
@billkea7224 2 жыл бұрын
We wore a ring badge.
@aidenmeehan9319
@aidenmeehan9319 2 жыл бұрын
What’s your job now? I’m doing this as my internship right now and wondering what comes after this
@arineey4538
@arineey4538 2 жыл бұрын
@@aidenmeehan9319 well that totally depends. I majored in structural engineering so I practiced that after graduating. I know that some interns stayed with the path and got office jobs as engineers with the testing company managing the test results from all the interns’ work. Others went down the geotechnical route. I also inspected rebar and concrete so I had more of a structural tilt. Nowadays I’m a financial advisor though made a career 180 after 4 years as an engineer. I’d sit down with a senior engineer at your company you’re interning for and ask questions on different career paths!
@aidenmeehan9319
@aidenmeehan9319 2 жыл бұрын
@@arineey4538 awesome, thank you. I’m also in the structural track
@mohamedal-hammadi9490
@mohamedal-hammadi9490 3 жыл бұрын
Excellent video .. you help me a lot to see how the nuclear density test going
@1nePercentJuice
@1nePercentJuice Жыл бұрын
Perfect, got one of these at a yard sale and wasn't sure how to use it. Thanks!
@DickShezzzz
@DickShezzzz Жыл бұрын
Wow those are tracked haha someone messed up bad or stole it lol
@huge_balls
@huge_balls Жыл бұрын
Be careful, they can be very radioactive
@snarp408
@snarp408 8 ай бұрын
Lmfao. No. He didnt
@1nePercentJuice
@1nePercentJuice 8 ай бұрын
​@snarp408 Pardon me sir, but I sense a bit of jealousy in the tone of your message. Jealous that I've been able to test soil density and soil aggregates in my neighborhood park like a boss and you havent. Sucks to suck!
@snarp408
@snarp408 8 ай бұрын
@@1nePercentJuice lmao. No. I use a gauge daily
@MG-ny1ue
@MG-ny1ue 2 жыл бұрын
Well explained
@zlm001
@zlm001 10 ай бұрын
Treasure trove of civil engineering and roads. Fuck yes!
@ashwinneupane1239
@ashwinneupane1239 3 жыл бұрын
At first we have to take standard count. Our gauge has callibration so while when we took standard count may be some error ...density and moisture they will +/-2 erros its accpetable ...more than this not acceptable ....after this we will know the gauge is ok...then after we will conduct the test as same your procedure
@cttparkansas4219
@cttparkansas4219 3 жыл бұрын
Please see our standard count video linked here for more information on Standard Count: kzfaq.info/get/bejne/m92ifLp9x7DUiIU.html
@davidmitchell7479
@davidmitchell7479 3 жыл бұрын
Pop phone
@robertmccully2792
@robertmccully2792 3 жыл бұрын
Nice test but what does it mean back at the lab? What is a good reading or bad reading. From my understand as an retired superintendent, the fill test should match the existing soil compaction or you will have unequal settlement. All the test are a pain in the ass for the superintendent. We have to call for all test and inspections, and show them where and so on. Its an endless task among all the other daily jobs.
@kiritimatiswan1986
@kiritimatiswan1986 2 жыл бұрын
Welcome to construction management
@xXxKazamaxXx
@xXxKazamaxXx 9 ай бұрын
The material has to be collaborated in the lab prior to testing. The engineer will come and take about 60kg worth as a sample and conduct an Optimal Moisture Content test at the lab. This will generate a Maximum Dry Density figure as well as an optimum moisture percentage. On site with the NDM, you compare the results to these collaborated figures and overall are given another percentage based on the similarity of the results. A 100% reading would be an identical MDD with moisture reading under the optimum. Most councils across the UK require material to pass at 95%. A high moisture reading (from rain, for example) would affect the result as would a poorly compacted material
@felipearevalo2486
@felipearevalo2486 2 жыл бұрын
What is the initial PR value? what does it mean and how do I know what to use?
@kiritimatiswan1986
@kiritimatiswan1986 2 жыл бұрын
PR is the number you get from the lab. They provide you a proctor and an optimal moisture to shoot for.
@snarp408
@snarp408 8 ай бұрын
PR is "proctor value" it is the dry density maximum of the materials you're testing. You take a sample beforehand, the lab will process it and find the max dry density. That is your PR number and it specific to the materials you're testing
@MrHou-so6sx
@MrHou-so6sx 9 ай бұрын
工程师您好,有个关于TROXLER3440操作的问题请教一下。在操作过程中,将探杆由安全位置往下放入探孔中,界面不显示深度值,按START/ENTER键以后,显示Invalid depth ! change rod depth . Press START when ready .。应该如何操作才能正常显示深度值和仪器能正常检测。谢谢。
@doxscund8821
@doxscund8821 6 ай бұрын
My gauge has that problem too. I believe the Troxlers can switch modes, there should be a mode button and switch it to 'manual'. When you place the rod in the probe hole it should now ask you for the depth and you can input it manually.
@claudekim7876
@claudekim7876 Жыл бұрын
lol we legit just use a drill with a wood bit unless theres gravel. also we dont use guide plates XD
@snarp408
@snarp408 8 ай бұрын
Dude I tried that and it doesn't work well on aggregate base, only soils. Has that been your experience too?
@claudekim7876
@claudekim7876 7 ай бұрын
@@snarp408 yea u only use it on clay or aggregate free bases. For those you use the pin and hammer
@railgap
@railgap 10 ай бұрын
Came to see another screwup irradiate himself, was disappointed to see it being done safely. :)
@paulraiofficialchannel777
@paulraiofficialchannel777 2 жыл бұрын
Most dangerous to health this job
@kiritimatiswan1986
@kiritimatiswan1986 2 жыл бұрын
No, not at all. You get more radiation in a single flight ✈️ than a year of safely operating a guage (with alara in mind)
@Geologist_Mike
@Geologist_Mike Жыл бұрын
@@kiritimatiswan1986 Unfortunately a lot of technicians use nuclear gauges incorrectly by deploying the rod above ground and then eyeballing it into the hole. This exposes their legs and feet to dangerous levels of radiation.
@dan__________________
@dan__________________ 11 ай бұрын
@@Geologist_Mike Is a non nuclear version not as accurate?
@xXxKazamaxXx
@xXxKazamaxXx 9 ай бұрын
Dude I've been doing this shit every day for the past 8 years and every year I go for my medical my dosimeter badge barely has anything on it. You take more radz from a bloody microwave
@snarp408
@snarp408 8 ай бұрын
​@@xXxKazamaxXxabsolutely. That's how I do it, and have never had a high dosemitry reading. Been doing it 4 years now!
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