How Concrete Gains Strength and Resists Fluid Penetration

This video explains how the structure of concrete forms and gives the material strength and resists the penetration of external fluids. Three important rules are presented that govern durable concrete. www.tylerley.com

[@rathjen72032]

It's 9:48 PM in Arkansas. I had to pause your video to go water my concrete. Day 12. My neighbors think I am nuts for watering it. Glad to find you and have acceptance in wanting concrete done right. Thank you for your videos!

[@ianharman2568]

Nice one. people always forget to keep their concrete wet. in lab conditions concrete is cured in water after 24 hours for a reason

[@victorcharlie6384]

I have no idea why this great video has so little views. Great stuff , thanks a lot.

[@TylerLey]

Thanks Victor! Spread the good news.

[@subirnath4229]

You are great, sir. I'm bit addicted to your videos....by the way, can u make a vid about the ideal dosage of water reducing admixture in converting with 0.38 or 0.4 w/c ratio?

[@sauravghimire3167]

I came here through your university website and you literally love concrete, Professor. Motivating stuff. It would be very exciting to work with you. Hope i could have a chat with you.

[@khalidsalah8482]

Wonderful explaining and helpful lecture Thank you so much

[@bentayahamza5459]

this is actually your most educational video ...should may be re-title it . my question is what the hydration or curing is chemically speaking

[@Al-vy1fv]

Love your videos. Fascinating stuff. Thanks for sharing your knowledge.

[@deonbennett1444]

Good stuff

[@BiPolarBear722]

@Tyler Ley does the concrete plant make sure the water to cement ratio is correct or is it something I need to ask for. Does a 4” slump have any relation to water to cement ratio? How can I ensure as a homeowner, I’m getting proper concrete?

[@snaecooceans8744]

What about Plasticizers - that allow water to flow more freely - would this not change the W/CM ratio ?

[@iffprove]

Thanks!

[@TylerLey]

Glad you lik eit!

[@cunninghamhome6971]

This video advocates for reducing the w/cm ratio to reduce porosity. Isn’t the concrete reaction governed by chemical reactions? As such doesn’t every molicule of C3S require 4 H2Os to fully hydrate? And every C2S requires 2 H2Os to fully hydrate? (Or something like that). Are you advocating using less water than that? If so you are forcing incomplete hydration. You get away with that by getting all the hydrated particles to touch by reducing the water. But the concrete would be better if hydration went further. But curing is only a small effect. 1) are there substances that can be added to retain water for months or years that would promote complete hydration? 2) would reducing the grain size of OPC, fly ash and slag by a factor of 10 (or 100) increase the degree of hydration? 3) if reducing particle sizes causes too fast a reaction, what about using a cement heavy in C2S? Why can’t we beat the Romans that made concrete that lasted 2000 years? Thanx, Dylan

[@aqabajordan5356]

What are the longest possible dimensions of produced and casted plain concrete "without embedded reinforcing steel" that doesn't suffer out of dimensional instability?

[@TylerLey]

Aqaba - Are you worried about buckling? The buckling guidelines for slender columns covers this. You have to calculate something called the slenderness ratio. The equation is KL/r.

[@mattcreator8480]

I am a welder and i know porosity is bad! PENETRATION is good for me haha

[@petevenuti7355]

Hydrologic pressure? Hydrologic cement? Bacement floors😳🤪