Curing polished concrete floors has been and continues to be a topic with illusive answers and continual questions. Thus far I have not encountered what I would call a perfect system when considering the potential ramifications of aesthetic quality that curing systems have on a floor. For industrial purposes the consensus of opinion seems to be fairly agreed but I am yet to be convinced about popular curing methods for the high end domestic flooring market. However, it is well worthy of discussion and if any proven solution arises in the future I will blog it. Also, if anyone else has a system to recommend please get in touch.
What is curing and why cure a floor?
Curing concrete is the process by which newly placed concrete is kept moist so it can keep gaining strength. For industrial flooring this is especially important in terms of increasing surface wearing capability and reducing overall maintenance costs. For the domestic scenario wearing capacity becomes less important and the ae...
This week we’ve been busy repairing some deflected construction joint lines on columns on a major fair faced project in London. This will be the next Concrete Repair Category with some before and after images.
I also written an article on in situ polished concrete flooring for a major publication. Along with a previous article on concrete repair works we hope to have two pieces published this month. We’ll keep anyone who follows this blog informed when these come out.
Also this week I gave an intimate two-hour CPD on Specifying Visual Concrete (Floors, Furniture and Tadelakt) to Belsize Architects http://www.belsizearchitects.com which according to feedback, was really informed and full of practical information. This is what it’s about. I hope that it facilitates future projects for this dynamic group. Thanks for the invitation…
There will be more to come of course on the Visual Concrete Finishes series focusing on Polished Concrete Flooring.
Much like the Architectural Concrete Repair Category blogs (which will continue to be posted by the way), Visual Concrete Finishes will be a series aiming to share my own personal experience of placing and finishing exposed concrete with some additional notes on technical aspects, what to expect, ideas on design details and how to look after the concrete when you are living with it.
The first part of this series will focus on Polished Concrete Flooring primarily for the domestic market, as this is where my experience lies. The Polished Concrete Flooring blogs will form five parts as follows:
Post finishing and after care
Just to say that the opinion, ideas, technical details and potential materials used are only my take on this rather broad and extensive subject. If anyone has any alternative opinion or additional information to add to this series, please do contact me and I will post it.
I came across this today giving me an abrupt and sharp reminder of just how sensitive polished concrete floors are when they are young. By ‘young’ I would suggest up to two weeks.
I intend to blog a whole section on polished concrete flooring because frankly the subject needs and deserves it. In the meantime here’s a couple of images of what I would term as differential curing. The first has happened on the day of finishing and the second image has occurred after the floor has been covered.
Power trowel blades if left immobile for any small amount of time at all on the surface will make these marks. I’ve seen it many times and done it once myself. Never again.
The curing line is from a non-breathable type covering or protection sheet that has given rise to a disparity in curing evenness. I’m still trying to get to the bottom of a ‘perfect’ curing system but not found one yet. Please share information if you have any!
If possible my advice is to air cure for 2 weeks...