Aggregates in Concrete Mix Design

[Shadowfax]

Man, never thought I'd sit through a concrete class. Nice work Tyler, feel like I learned something (a lot!) today :)

[roycevaughn]

Hey Tyler your videos are EXTREMELY GOOD resources for concrete science. Especially for a geeky concrete mason! Thanks so much for the free knowledge.

[JV-gebm]

Your videos are beyond helpful! Just started working for my family’s construction company and love your channel!!

[glenmisha]

Been wanting to learn about all aspects of concrete & today, I joined Ley Concrete Institute. Glad to have found you & your channel because you are certainly "ley"'ing it all on. Thanks for sharing!

[gc]

Thank you for this lesson! I liked your explanation of the Max Nominal Sizes. From 15:37 It helped me understand why it says "90-100 passing" in the table, it's because 10% include the max size aggregates retained in there.

[khadarmohamoud]

Thank you Dr. Tyler Ley. God bless you and your family.

[TruthofKashmir]

I used your content a year a ago for my presentation in college and I just topped my batch. Thank you Er Tyler

[animiztothepoint]

it was amazing. i also watched the video on air entraining admixtures and that was fabulous

[kevinshaw]

These video's are great!! Thank you for helping build on and reinforce my concrete knowledge.

[johnfitzpatrick]

G, day from Sydney Australia.
I appreciate your knowledge of the cementisous matrix ingredients, used as a modern building material.
🌏🇦🇺

[cindytepper]

There was a company in Bucks County Pa that supplied sand, stone, and ready mix concrete called Warner. They mined most of their aggregates from pits near the Delaware River. It was all very rounded natural stone. I have no idea what the mix was or anything but it was some tough concrete.

They were out of the ready mix business probably around 1970 when I was just a kid, but whenever we came across their concrete on a job and had to break it up it was tough to demolish. I remember one job back in the late 80's removing the bases of smoke stacks and our operator pounded on them for what seemed like forever with a 5 ton wrecking ball before they broke up. Even the sidewalks where I saw that aggregate were hard to break

[pikusmaster]

Your videos about concrete are amazing! The only thing I wish that was better is the use of superior units - metric system.

[upkzwsm]

Hi Tyler, just wanted to say that you make me happy when i see your videos !
Your Joy in this field is contaminating

[seasonedtoker]

Wooow, this is one of the few vids where there isn't an Indian guy or an auto-generated voice narrator explaining it.

[kometa]

Totally agree on the percentage retained!!!!

[abyni]

Dr. Tyler, would be useful for contractors if I made a facility that uses multiple sieve sizes to separate the aggregate by size and then remixes them to order?

[Dilberto]

Did you review the core sample report, just released from the collapsed Florida Condo? It looks bad. It appears the cement has turned into powder. Let us know your findings. Great job!

[KarasCyborg]

Thanks Tyler for putting this series together, I learned a lot of the lingo and understand some of the forces of making better concrete. I want to cast a privacy (non-bearing) wall out of large aggregate (6" round-like granite fieldstones). Is there a formula for how to graduate the mixture down from 6" rocks down to gravel and sand / cement to make the well-graded aggregate / paste mix?

[DeliciousDeBlair]

I must admit, I learned something in this video about the rules of maximum aggregate sizes! [not that I have not GROSSLY violated them in the past! ~(, m,)~ ]
(On one project I chucked a few large whole rocks into the form before to stretch my concrete, but the wall is only 24 high and was 10 inches wide, so it went okay for the purpose intended, it is not load bearing nor a retaining wall).

[marykwan]

Dr. Ley, pls kindly tell need how to make concrete for a 10 Bay garage for fixing cars and semitrucks. Appreciate your answer, Thank-you so very much!! Also, need it in 2 days as well if possible, gratefully, Dave