What are High Range Water Reducers? - Vlog #54

[@BenBNC]

I’m a concrete flatwork finisher, and am very very interested in HRWR products, but due to my own inexperience with these products, have had some negative experiences. I am looking to achieve high strength concrete, and pour it at a high slump. Somewhere in the 6-7.5” slump range. Every time I order a HRWR, we get a very very sticky mix, that is actually more difficult to place than standard water tempered concrete. I have my suspicions that the plant is not using this admix correctly, but I am also aware of my ignorance, and understand that I am probably the one who doesn’t understand. They use master glenium 7500. I have requested them send my truck at a 7” slump. What I received was a sticky 4” slump that barely traveled down the chute. Am I asking for the wrong admix? Is there an admix in existence that will allow me to pour a very easy to place 7” slump with no added water? Tearing my hair out over here. Thanks for the awesome content!!

[@IntelligentConcrete]

Howdy Ben. It sounds like your RMX isn’t using the right combinations of admixtures and powder. What’s the best way to reach out to you?

[@ksestevezbretond]

Hey man good channel!

[@IntelligentConcrete]

Thank you!

[@cutecatlover6116]

What is composition of water reducer?

[@deyc3]

You were really getting fired up to explain the relationship between SCC and MRWRs and poly-carboxylate super-plasticizers... and there was an edit... What did I miss?

[@IntelligentConcrete]

deyc3 we have a new video that gets into the relationship. I think it’s being posted this week.

[@deyc3]

I was watching that one and it linked back to this one so I watched this one first.