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New Construction Technology

Started by kernals12, March 23, 2021, 05:23:09 PM

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kernals12

Quote from: kalvado on May 10, 2023, 04:45:19 AM
Quote from: kernals12 on May 09, 2023, 11:56:21 PM
Did you guys know that you can build roads out of precast concrete modules? I sure as hell didn't. It's much faster than conventional methods. Though I do wonder how they handle it when the roadway isn't perfectly straight.
To begin with, this is reconstruction - not a green field construction. Makes quite a difference.
And still not the most impressive example of such kind of work


Is that AI rendered?


jeffandnicole

Quote from: kernals12 on May 09, 2023, 11:56:21 PM
Did you guys know that you can build roads out of precast concrete modules? I sure as hell didn't. It's much faster than conventional methods. Though I do wonder how they handle it when the roadway isn't perfectly straight.

Based on the article's date, it's not really new technology, and based on NJDOT's seminar ( https://www.njdottechtransfer.net/2020/06/11/lunchtime-tech-talk-webinar-evaluation-precast-concrete_systems/ ) and report ( https://dspace.njstatelib.org/bitstream/handle/10929/56560/t7642019g.pdf?isAllowed=y&sequence=1 ), at least 17 states are using precast concrete slabs.  NJ's reports reviewed several states experiences and policies, including California's. 

I didn't read thru the reports in depth, but to very briefly summarize:  A big benefit is why CA did what they did:  Minimize lane closures.  When permanently closing a lane during a construction project isn't an option, allowing nighttime closures to rip out concrete slabs and place a new slab in while permitting traffic to have full access to the highway during the day is huge. One of the bigger downsides is cost.

CA's project is probably one of the larger ones.  I think NJ has done a lot of smaller PCP slab projects, such as here where they've replaced several feet around older concrete joints. https://goo.gl/maps/ZxerE5PKNtLXE8Uu9

kalvado

Quote from: kernals12 on May 10, 2023, 07:33:28 PM
Quote from: kalvado on May 10, 2023, 04:45:19 AM
Quote from: kernals12 on May 09, 2023, 11:56:21 PM
Did you guys know that you can build roads out of precast concrete modules? I sure as hell didn't. It's much faster than conventional methods. Though I do wonder how they handle it when the roadway isn't perfectly straight.
To begin with, this is reconstruction - not a green field construction. Makes quite a difference.
And still not the most impressive example of such kind of work


Is that AI rendered?
Perfectly real shot.

kernals12

Quote from: jeffandnicole on May 10, 2023, 07:58:30 PM
Quote from: kernals12 on May 09, 2023, 11:56:21 PM
Did you guys know that you can build roads out of precast concrete modules? I sure as hell didn't. It's much faster than conventional methods. Though I do wonder how they handle it when the roadway isn't perfectly straight.

Based on the article's date, it's not really new technology, and based on NJDOT's seminar ( https://www.njdottechtransfer.net/2020/06/11/lunchtime-tech-talk-webinar-evaluation-precast-concrete_systems/ ) and report ( https://dspace.njstatelib.org/bitstream/handle/10929/56560/t7642019g.pdf?isAllowed=y&sequence=1 ), at least 17 states are using precast concrete slabs.  NJ's reports reviewed several states experiences and policies, including California's. 

I didn't read thru the reports in depth, but to very briefly summarize:  A big benefit is why CA did what they did:  Minimize lane closures.  When permanently closing a lane during a construction project isn't an option, allowing nighttime closures to rip out concrete slabs and place a new slab in while permitting traffic to have full access to the highway during the day is huge. One of the bigger downsides is cost.

CA's project is probably one of the larger ones.  I think NJ has done a lot of smaller PCP slab projects, such as here where they've replaced several feet around older concrete joints. https://goo.gl/maps/ZxerE5PKNtLXE8Uu9

Perhaps in the future they'll have ones made of lightweight carbon fiber that can be installed without expensive machinery

kalvado

Quote from: kernals12 on May 11, 2023, 11:07:04 AM
Quote from: jeffandnicole on May 10, 2023, 07:58:30 PM
Quote from: kernals12 on May 09, 2023, 11:56:21 PM
Did you guys know that you can build roads out of precast concrete modules? I sure as hell didn't. It's much faster than conventional methods. Though I do wonder how they handle it when the roadway isn't perfectly straight.

Based on the article's date, it's not really new technology, and based on NJDOT's seminar ( https://www.njdottechtransfer.net/2020/06/11/lunchtime-tech-talk-webinar-evaluation-precast-concrete_systems/ ) and report ( https://dspace.njstatelib.org/bitstream/handle/10929/56560/t7642019g.pdf?isAllowed=y&sequence=1 ), at least 17 states are using precast concrete slabs.  NJ's reports reviewed several states experiences and policies, including California's. 

I didn't read thru the reports in depth, but to very briefly summarize:  A big benefit is why CA did what they did:  Minimize lane closures.  When permanently closing a lane during a construction project isn't an option, allowing nighttime closures to rip out concrete slabs and place a new slab in while permitting traffic to have full access to the highway during the day is huge. One of the bigger downsides is cost.

CA's project is probably one of the larger ones.  I think NJ has done a lot of smaller PCP slab projects, such as here where they've replaced several feet around older concrete joints. https://goo.gl/maps/ZxerE5PKNtLXE8Uu9

Perhaps in the future they'll have ones made of lightweight carbon fiber that can be installed without expensive machinery
Is there enough oil in the world to make all that plastic?

Road Hog

My hometown HS moved the graduation walk with seniors' names embossed in the segments from the old school to the new school some time in the 1990s.

I always wondered ever since then why they can't just level out concrete sidewalks and roads the same way for a hella lot less money.



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