CON-CRETE was born on March 11th, 1981 on the wet streets of Seattle, WA in… Read Full Bio ↴CON-CRETE was born on March 11th, 1981 on the wet streets of Seattle, WA in a haunted cemetary during a Satanic Ritual. Okay that's bullshit, he was born in a hospital, but that shit would have been awesome if it was true. At the age of 3, CON-CRETE already had a girlfriend. But the relationship ended quickly with a fight and resulted in CON-CRETE biting the young girl. This was CON-CRETE's first taste of human flesh, little did he know that the hunger would return. The only attention he ever recieved in school was his attention deficite disorder. His father decided that the family should practice Judism possible because he liked that fact that jews always had money. So the infamous "Dark Minister" grew up singing jewish hymns and lighting candles until his parents devorced and turned Christian. Your boy became very comfortable at the local Baptist Church until he realize that it was all brain washing bullshit and left. CON-CRETE actually hated rap until he was introduced to the wickid shit by his brother at the age of 19 and began to study the ancient art of drunken freestyle. He started off under the name Winslow after a local town in his area that he had never been too. It wasn't long after that for the Winslow to turn to a life of crime, he developed quite the record that still haunts him to this day. Venting through music, Winslow was introduced to Bloodshot another motivated young rapper just being introduced to horrorcore. It wasn't until being pressured into recording a song called "Triple Six Feet Deep" (which scared him at first) when yours truly finally saw the darkness and became a born again Satanist. Hated by many, loved by few, our hero's flow skills grew. It wasn't until being arrested for shoplifting that he changed his name to CON-CRETE behind bars, a name which Bloodshot suggested to him earlier. He began using the name while writing his first cop killer track "Makin' Bacon." A few years later, CON-CRETE was arrested again for being drunk in public and sang that very same song to the cop in the back of the cop car on the way to jail. Officer John Bogen did not like the song and file Harassment charge on him. After being strapped down to a chair Hannible Lector Style in a rubber room for 6 hours, CON-CRETE was informed that he was being charged with a felony for spitting a flow in which he was later convicted. While serving his 4 month sentence he was introduced to ARsonal who ran a local label called Shewmac Records which he dropped two album under including "I Hate Cops." Now a proud member of the SKR camp, there is no telling what this sick fuck is capable of. CON-CRETE performed at events with artist such as Insane Poetry, Jason Porter, Shy One, Riff Raff, Haystack, Mars, ADR Lavey, Mike Jones, Paul Wall, Psychopathic Records, V-Sinister, ABK, Devin The Dude, Insane Poetry, King Gordy, Doomsday Productions like anybody gives a fuck who he opened for. Either way "The Dark Minister" is gonna keep on rocking mics until his fucking lungs explode bottom line.

Book of the Dead
Con-crete Lyrics

We have lyrics for 'Book of the Dead' by these artists:

Bloodbound No sound on the burial ground There's a stone with your…
Brandon Wardell Legend has it that it was written by the Dark…
Massacre Read from the pages Speak the spells out loud Naturom demont…
Medjay When you die there is a way you get to…

Minuit Book of the Dead I wake up in the night the moon…
Sickseed Dust it off Turn the page Constructed by human remains Ink…
The High Dials Read to me Tell me a story If you say the words…

Timo Kotipelto [Bonus track] Since ancient times there's been A need fo…

The lyrics are frequently found in the comments by searching or by filtering for lyric videos

TRACKS

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Comments from YouTube:

O. Ivan

6y↑12

Fantastic! @ Minute 2:56!! Thank you for all of you teachings and videos Dr. Bondy.

Daniel Silva

4y↑1

Excelente clase Dr. Bondy, muchas gracias!!

Khắc Hoàng Phạm

5y↑3

Thank you for providing free lectures, very grateful

felix forero

Great job!
I took a post-tensioned concrete course 2 years ago, and I haven't "put in practice" this knowledge yet, so this lecture help me to "refresh" my memory.
Thank you so much!

Christian ZOUNDJI

Hi Dr. Bondy !
Thank you a lot for this wonderfull class !
Still, I doubt over the direction of the force "F" in the case of the "tendon only free body diagram".
In the first example, you drew this force with an angle of 11"/240". And in the second example, the force does a 11"/360" in the left segment and a 11"/120" angle in the right angle. But I think that, in both cases, this force should be horizontal.
Does it make sense to think that way ?
Thank you !

KONAN BLE JUSTIN

4y↑1

You are the greatest teacher of prestressed concrete I have ever seen!

Rafiqul Haque

6y↑1

Great work Mr. Bondy. Your videos are very helpful.

Ing. Erick Osorio

5y↑3

This explanation of why we get a moment and a force acting at c.g.c is marvelous I was reviewing T.Y Lin's book and wondering what logic behind that was since it didn't seem to be statically right, but your explanation doesn't leave any gap for confusion it is the best I've ever seen, keep the good work Mr. Bondy we appreciate it.

Nicu T

2y↑1

Dear Professor Dirk K. Bondy,
I thank you for the great lectures. I fiind them very usefull for learning, designing and teaching Post-tensioned slabs.

With best whises,
Traian-Nicu Toader
Technical University of Cluj-Napoca, Romania

osama tariq

3y↑1

Wishing you allot of success. I’m finding these videos very useful. A civil engineering student from middle east

Kevin Garred

Great lecture. Thank you!

Daniel Blake

5y↑3

I'm am a new engineer who just graduated from University of Nebraska Lincoln, The company I work For is small but about half of the work we do is consulting for a pre-caster who does pre-tension stuff. I've learned everything I know about Pre-stress on the job over the past two years as an intern here. The University here doesn't offer this class to undergrads. Thank you for this video I appreciate a chance to learn from a lecturer the whole of the work. I hope it will connect the dots for me in places that might be missing. I've been lucky to have stumbled upon probably the only firm in 400 miles who consults for a pre-caster and also designs steel, wood and masonry as E.O.R. I'm excited to learn all about pre-stress and potentially become specialized in this area of structural engineering, thank you for the videos.

Construction Engineering & Failure Analysis

4y↑2

Dirk, can I kindly share your video location data?
I want to show how awesome I find your data and how you put your money into sharing with engineers... Which most engineers are not doing.
I also love how you support your dad and he supports you.
Again, I will be very kind to your data and direct people and engineers to your channel.
Ps I have watched your entire lecture and a couple of them multiple times.

Construction Engineering & Failure Analysis

Thank you kindly.

dirk bondy

4y↑3

Of course! I put the videos online so they will be viewed by anyone interested in the material. Thank you!

Andrew Jeffrey

You're a master in your own right. Thank you Sir! PS: If I get an "A" for this course (exam in January 2020), I will owe a large part to you.

Muhammad Uzayr

Did you get an A ?

Susanka Mathangaweera

5y↑1

Great explanation and thanks

Qi Zhang

3y↑1

Thank you Mr. Dirk Bondy!

Alejo Cantelmi

5y↑1

Nice lecture, couldn't we say that an applied moment is the equivalent "load" (it's a moment) for a straight tendon. We could obtain the same camber using this moment. Thank you for sharing your knowledge. Regards from Argentina

dirk bondy

5y↑1

Hi Alejo, Certainly. The applied equivalent moment is one of the types of equivalent loads. "Loads" in this context is an umbrella term encompassing point loads, line loads, uniform loads and moments.

EZZATULLAH TEMURY

5y↑1

Thank you Mr.Bondy! very useful lectures. With respect from Afghanistan.

Manuel Soriano Gaitero

Dear, I think that you must draw both forces aligned with the strand, when you build your dody free diagrams for a better understanding on the real phenomena, proyecting the force on the section and perpendicular.

Construction Engineering & Failure Analysis

5y↑1

21:35 over-balance yes sir!!! (Helping your structure fail via dead load reinforcement ; this is why I am advocate for strain gauge requirements on all post tension / critical "tendons, critical design"...
Engineering has to much extrapolation these days; all resulting in some oversight that explains failures we observe...

KRÎSÑÆ💗

5y↑1

Wonderful sir

Joaquin Fabrega

Mr. Bondy, where could I buy your latest text book? Looking forward to hear from you.

dirk bondy

4y↑1

Hi Joaquin, Here's the link:
https://www.lulu.com/shop/search.ep?keyWords=post-tensioned+concrete+principles+and+practice&type=

HZL HZL

Thanks for such a informative video...i am wonder where did you get Moment of 110 from? thanks in advance..if Moment=F*e it should be 120*11=1320..?!

HZL HZL

@dirk bondy 👍Thanks so much for such educative videos..i should check units before asking..following your videos.

dirk bondy

4y↑2

Hi Kasim, 1320 inch-kips is the same as 110 ft-kips. You can use either.

Munawar Hussain

That's a great initiative

Edward Rodriguez

I have a question, minute 38:30 you explain the equivalent load method and calculate the vertical component using the slope (11/240) instead of sin (tetha) knowing that force 120k is tilted, what was the reason doing the calculation that way?
Is part of TYlin method?

Edward Rodriguez

Thank you sir!

dirk bondy

4y↑1

I am just using small angle theory.

Olet Arthur

3y↑1

Thanks for sharing. Wishing you success from Uganda

mezbour noureddine

2y↑1

thank you very much mister

MAJD ATTAR

4y↑1

Thankyou very much

thatsme05

5y↑5

at 41:00 my head about exploded when i realized the shape of the moment diagram of the equivalent load is the same as the profile of the tendon

محمد علي mz

3y↑1

You are amazing

The Unknown

4y↑1

watching from Canada. Thanks a lot

Salman Shaukat

If eccentricity same at some point then how will execute at site

محمد علي mz

3y↑1

I loved the boards v. Much

eng coofle tube

we need a detail of calculation

Blue Perso

3y↑1

Concrete God😇

Abhishek N

3y↑1

2.56 👌👏😃

hassn sadiq

6y↑6

i'm watching this from iraq, greatly appreciate these vids :D

Scholarship Opportunities Network

How to design prestressed small and large eccentric column?

Scholarship Opportunities Network

@dirk bondy All right thank you for your answer.. as we were focusing in Pre or post tension column with different eccentricities, now change to semi precast column with different eccentricities. like 10mm,40mm,100mm to check the axial and flexural behavior of column

dirk bondy

5y↑2

Hello, Columns by their nature already have applied axial loads, and I have never come across a condition where it would benefit a column by applying more axial load. So to the best of my knowledge this is not typically done.

weight loss

sir can u joust uload vedioes on designig of post tentioning continous flat slab
explain how the tendon is going to shw the stress disribtion along the length of the member

dirk bondy

5y↑3

Hi Yamuna, Lectures 18, 19 & 20 are all on flat plate designs. In practice it is very rare that we care about the tendon stress distribution along the length of the member. That is something that academic people spend a lot of time with in their courses, but in practice a 15 ksi assumed loss for all tendons will cover the vast majority of conditions within the amount of concrete that a sub-contractor can pour at any one time. In other words, there are practical limits to pour sizes and shapes and if you are within those, a 15 ksi assumed loss will be more than you will actually calculate, if you calculate it.