WHAT CEMENT SHOULD I USE (Part 3) Mike Haduck "Fast drying"

The rapid setting cements are CSA (calcium sulfoaluminate) and are chemically different from portland cement, which is made from limestone (Calcium carbonate), which is converted to calcium oxides when clinker is made, and is mainly calcium silicates and calcium aluminates. You can control the set time of the CSA cements with the addition of varying amounts of citric acid, much as in the old days of adding some soda pop (sugar) to portland. In my decorative concretes, I add varying amounts of CSA to the portland from 5% to 30%. This allows me to not only speed the set of the portland mix, but also adds early strength and the CSA, which expands as it sets, compensates for portland's tendency to shrink. Shrinkage cracks are then at an absolute minimum. If it's going to rain, I increase the amount of CSA so the mix sets within an hour. I also work with mixes containing metakoalin and silica fume, both being pozzolans, and utilize their small particle sizes to take advantage of particle packing that creates a very dense, impervious finished product with compressive strengths of 15,000 to 20,000 psi when mixed using fiber additives.

Dude is giving me a masters degree while I sit on my couch.

these vids are soo educational ... one of my favorite things about your channel is how you revisit the lessons and show it all again and again. thank you Mike! make some more music!

I’m a concrete polisher we mix cement all to a water Consistency like super over watered and dump it in little cracks and holes and grind it smooth…basically like a grout

"Thanks great work. I've been doing masonry for a while, this video is a good foundation of information to start using your hand in masonry." 👍

Nice video Mike , i always wondered what all the different concretes and mortars were for knowing to use which one for what job is very important and you explain it well .

I share this video with as many people i can ... soooo many people want to know these things and you explain it best

I live in NW CT with similar frost heave climate conditions and I think I'll use your formula over others. Thanks for a great series.

Nice to see Harrison Ford getting back to home projects

Thanks for being a good teacher Mike. I’ve actually painted with Cement All before turns old concrete white, learned that trick from you!

Well I'll have to say as of now I've learned more in two videos from you then most people in the mason world I'll be watching every video of yours thank you very much

This is one of the many vids that you have published that is also worth republishing for your channel. SUPERB info

Nice rundown on the fast drying cements Mike. To keep with the theme of the video I increased the playback speed to hear fast talking Mike talking about fast drying product. You & the products both finished fast. :) Paul

Just found your channel a couple of months ago and soooo happy I did....you saved our bacon lol...just a DAY before installing some stone ....on a FLAT surface...we learned we picked the wrong product and back to the store it went..lol...We also live in a much colder climate so we went with the 1 portland to 2 sand mixture..It turned out great, probably not as good as if you did it but we're so pleased with the outcome......I hope you have an apprentice and are passing along all your knowledge...it's so important. :) Again thanks!!

Thanks for showing all the products that you use together. A lot of different mixes out there these days, all with different set times and compositions!

I don't watch all the time, but I love your videos. You're the "Blair Glenn" of concrete work. You old guys rock! See what I did there?

I love your videos, please keep making them

Mike you give the best advice. When I buy quickcrete I’ve always added a scoop of cement per bag much easier to finish. Keep up the good work

MHTAPDE: Mike's humble teaching and passing down experience. Even though our choice in products is different, I still learned a lot from your videos. Best advice was probably to practice and to research. I like the idea of putting samples in the fridge....

As always, informative and no nonsense. Thanks Mike