If so, can you share the specifications issued to the contractor and the kind of machines on the shop floor that drove the requirements? I would think the heat curing requirements of most geopolymers would limit their application to shop floors, but some geoploymer mixes yielding around 37-50 MPa compressive strength has me interested.
I found the link for this Presentation Deep down in the comments of a Post in this sub but it only got 2upvotes. I just watched it and my mind is blown. Do you already know/agree on this? If yes sorry for this post, if not please take one hour of your time and watch it. This man (his work) needs more attention!!
Sorry for my Englisch, have a Great day
Hey there I am currently conducting a project on geopolymer concrete and aggregates, is possible to make a geopolymer concrete at home, what materials and ratios are required to make the most dense and structural rigid concrete. Any help would be greatly appreciated, currently in Australia so we haven’t really moved towards a greener future just yet.
Geopolymers can be made from fly ash waste from coal fired power plants. Why isn't this a big thing?? It's much cheaper and greener than regular Portland concrete.
Greetings everyone,
I’m currently choosing my thesis topics and I’m interested in geopolymers. Its an undergrad study which is usually performed by a group of 3 but sadly, I’m doing the study alone. In your experience, how hard would it be to perform a study on geopolymers alone.
Hello all,
I've been thinking about, reading up on, and planning to build a rammed earth home for 5+ years now. One of the components that interests me most is identifying ways to do this while mindfully reducing embodied energy. In an effort to circumvent the use of portland cement or lime(which actually has higher embodied energy) I've been trying to find articles and insights on other additives that are lower embodied energy but help with stabilization and performance of RE.
A few years ago I came across two studies (she sent them to me and I can forward if interested) by Kerstin Elert phd, that discuss the performance of rammed earth test blocks upon treatment with Sodium Hydroxide (NaOH), Potassium Hydroxide(KOH), and Calcium Hydroxide (Ca(OH)2). I know that NaOH and KOH can on some levels be extracted as Lye from leached ashes which would be a super interesting extraction and use cycle.
More recently I've seen the discussion of using fly ash waste and again a small amount of KOH to act as a binder with performance nearly as effective as cement.
I wanted to see if people on this sub had read, researched, or tested any of these methods. Would love to see more about the projects people have taken on too! Either way thanks for reading.
Edit:
Adding the links to aforementioned documents, I don't own the rights to these but they were freely shared and I'd like to pass that along for the benefit of all
Kerstin Elert 2008 - Alkaline treatment of clay....
Kerstin Elert 2015 - Alkaline activation ... for the consolidation of earthen architecture
Curtin University of Technology 2006 - LOW-CALCIUM FLY ASH-BASED GEOPOLYMER
I’m confused as to how the curing process takes place.
