Aircrete pond


  • DomeGaia: Building Dome Homes with AirCrete
  • DomeGaia: Building Dome Homes with AirCrete
  • Steve’s Thailand Dome Home
  • Tag Archives: aircrete
  • Is Aircrete as Strong as Concrete?
  • DomeGaia: Building Dome Homes with AirCrete

    The aim was to measure and record the environmental status and biodiversity of each area. Presenting the key findings from the report at the event on behalf of Ulster Wildlife, Dr. Michael Meharg and Professor Jim McAdam highlighted the significance of the work undertaken, which provides a thorough and detailed assessment of various land types, including grasslands, wetlands, woodlands, ponds and quarries.

    The report is a comprehensive one, achieving our ambition to create an exemplar study which is not selective in areas of land which it considers, but covers all Mannok assets. Already it has started to change our perspectives of what was previously considered wasteland.

    Now, we can see opportunities for careful and considered restoration into valuable natural assets for the future. Additionally, the work involved in creating the plan has allowed us to focus on the whole area of carbon mitigation in ways which we would not have considered before.

    The way in which we are looking at carbon reduction through careful management of our land is a relatively novel concept in industry, but we now recognise it as a critical tool in the fight against climate change. The detail and comprehensive nature of the report demonstrates the enormity of the work that was involved in completing the assessment and I would like to recognize the work of the excellent team brought together by Ulster Wildlife as well as our own team in Mannok, Stephen Linden, Oisin Lynch, Lisa Murphy and Michael McGoldrick.

    We must and will now take ownership of this report and the actions contained in it. The report is full of very valuable recommendations on what we can practically do over the next 3- 5 years and beyond to continue enhancing and restoring our land assets, and we are very much committed to delivering on this.

    We will commit resources, time, people and finances to develop the recommendations. Putting sustainability at the heart of our economic recovery from Covid is key to creating a resilient economy and healthy environment for all. Green Growth is recognised globally as an approach to achieve economic growth and development while ensuring natural assets continue to provide the resources and environment on which our wellbeing depends. Responsible industry leaders recognise the importance of safeguarding and positively managing biodiversity in and around their land holdings to demonstrate good land stewardship.

    Mannok own and manage a significant land portfolio and it is very encouraging to see their interest and intent to maximise the biodiversity and carbon benefits making a positive contribution to global and local environmental challenges.

    DomeGaia: Building Dome Homes with AirCrete

    Back then this dome was not much more than an experiment and an opportunity for community service. The students wanted to know how much it would cost for them to build a basic geodesic dome. The following year they decided to experiment with cob building, and with clay, sand, straw, and lots of stomping they made a floor. With time the original covering to the dome needed replacing. In , students were assigned to make the most creative floor plans for additions to the dome. Students worked on designs for a rocket stove that would heat a cob bench, a raised garden bed, and using aircrete as a building material.

    We even looked at building a ferrocement pond for an aquaponics system. Middle School students in the Fall of calculating the surface area of the dome as they continue brainstorming ideas for renovations and possible materials needed. There were multiple lengths that the sides of the triangle could be, there were red, blue, and green lengths, each marked on the hubcaps where the wood 2x4s met. We went out to the dome to measure the length and width of each triangle.

    After finding the area of each triangle, we added up each area to find the surface area. The final area was From there we would have to estimate how much cement and lime plaster would be required to cover the interior wall.

    We started by using shovels to dig out the cob floor. Cob is a material made with clay, sand, straw, and water mixed together. The students created many different and unique ways of removing the hard floor. One of the most popular was when the students would dig the shovel into the ground and jump on the shovel to remove the cob.

    The project lasted many sessions. It was tough, and at a point, we felt like giving up, but once we were finished we felt very accomplished and proud. The hard work of the previous students in gathering and mixing all that cob will not go to waste. The cob is being stored in a tarped pile outside of the dome and will be transformed into a beautiful heated bench in the spring!

    Fall of — Major Renovations! Students outside the soon to be renovated dome at the beginning of the school year. Thomas: Students prepare for the ferrocement interior wall. The ceiling shows what a finished 1st coat looks like. The mesh was added to the dome in two layers to better grab the cement plaster.

    These layers had to be smooth and tight so that when we put the plaster on it would stick and only need a thin coat. So to do this we took steel wire and looked for places where the mesh layers were separated. The picture below is an example of this.

    The middle schoolers all help to tighten up sections of the lathing prior to their cement plaster work. Aly: Over multiple days we mixed cement batches to cover the wired walls of the dome. We mixed bigger batches in a standard metal trash can with a portable electric hand mixer, and smaller batches in the plastic mixing tubs with a hoe, as shown in the picture. This mix is what is inside the dome, separating the wood, insulation and wire from the inside of the dome, therefore trapping heat.

    We started with the first layer of cement plaster then we did a finishing coat of lime plaster. The first layer took the longest to complete. After we were done we had to go in with one last layer to smooth it out which our teacher Jack did with the lime plaster.

    Troweling on the cement plaster. The tight wire mesh that the students have helped secure allows for a minimal amount of cement use, while creating a super strong and resilient structure.

    Then once we got the right shape we wired it into place. After that, we tied lath to both sides of the hog panel using little pieces of wire. Once the hog panel and the lath was secured we made a quantity of cement plaster and troweled that on. Once the plaster dried we added a final finish coat, and finally, colored it with pigment.

    Jack walks students through the steps to create the raised ferrocement greenhouse bed. From wiring to plastering — the middle schoolers hard at work. The Final Lime Plaster Coat! At long last the first coat is complete! Now time for a final lime plaster coat to smooth it out and to add some earthiness. Axel: With the final coat, we were able to cover more wall more quickly, so Jack taught us how to use the mixer to make bigger batches of lime plaster.

    The mixer was hard to control but was manageable. It was fun but you had to make sure none of the mix splashed on you. The mix was then moved into the dome and we spread it on the wall.

    Once it hardens we coat it with a lime and pigment mix which gives it that red color you can see inside the dome. Gabby: After each section of the dome got its final lime plaster coat we mixed pigment and applied it with a paint brush, then let it dry.

    Painting the dome was a lot of fun mostly because I got to mix colors and paint with my friend Baylie. Students painting a coat of iron oxide over a base layer of yellow ochre on a freshly laid section of lime plaster. Our first step was to move decomposing logs to the bed in the dome. I was happy to do it because it was more fun than plastering or painting, so I immediately went to the biggest log I saw and took it to the dome. We put worm filled compost and topsoil in the garden bed and then we planted parsley, oregano, kale, collard greens, and a black fig tree.

    Using a scrap of hog panel and lining it with thick fabric cloth our vermicomposter was ready to receive its payload of worms. The students gathered partially decomposed logs from the nearby forest to layer the bottom half of the raised bed. This hugelkultur approach will help store water to lessen the need for watering and will help aerate the soil and provide a continuous source of carbon as the logs further decompose. The logs will also help innoculate the soil with their fungal inhabitants contributing to a healthy mycorrhiza that will especially benefit the black fig that is planted in the bed.

    On top of this woody layer the students volunteered me to spread out a layer of bokashi and biochar that were brewed up by the students the previous year during permaculture class. This EM1 first level of complexity was then introduced into a substrate of wheat bran and biochar that the students had made in special burn pit that they helped construct. This mixture became an EM2 which was then used to start to digest the compost scraps that were collected during the school year through the middle schoolers awesome recycling and composting campaign.

    This well pickled food was a bit overwhelming to the nose, but will provide a nutrient and microbial rich and complex layer to the garden bed. The biochar provides incredible surface area as a microbial hotel in the soil, helps retain moisture, and sequesters carbon.

    Experiment — an Aircrete Floor Bryce: We first decided to make some aircrete because we had done some research on it and figured out that aircrete is a lot better for the environment than regular concrete. Aircrete turns a 94 lb. We started out with doing a test batch which turned out really crumbly. So we tried again but with less foam which turned out to be a lot better. After a few more tries we decided to start to pour the dome floor.

    Our final mix was 94 lbs. Jack Comstock was the only one who poured the floor because we would not be able to do that as a class, but we helped out with preparing the area. Video: Students mix up a test batch of aircrete using a foam generator and a special attachment that injects the foam onto the blades of the cement mixer to allow the light foam to be mixed in from the bottom of the pre mixed portland cement.

    Here a student holds a chunk of a cured aircrete test batch as we worked to find the right balance of strength, while maintaining the insulating properties of an air pocket filled material. The aircrete floor set up nicely. Had this not been a renovation we would have poured a thicker slab of aircrete. We only had clearance for a 2-inch slab, but are hoping that a wire mesh skin and a final lime, cement finish layer will give us the durability we are hoping for.

    The dome serves the purpose of a green building learning lab, so we are excited to see how our experimentation pans out and are open to learning from our mistakes. The aircrete floor prepped and receiving its final lime plaster coat and yellow ochre pigment. Underneath the plastic were a bunch of triangular corrugated plastic panels, which also had to be removed.

    But we only had to take off the panels that were on the south and east side, which drew in the most sunlight. We then replaced all of those with polycarbonate panels.

    The polycarbonate panels are double layered and have pockets in between, which act as a form of insulation. They will keep the dome very warm and we are also going to make the door out of two polycarbonate panels. Time to Enjoy a Beautiful New Space! This project was a lot of work but the students pulled through. Our goal was to create an eco-friendly class space where students could work and learn. This is even more necessary now with Covid Having this extra space can help our students spread out and social distance more.

    The students are excited to be using this new workspace! What an awesome exploration of green building techniques! Thank you to the Middle Schoolers for their hard work and vision! What a beautiful addition to the Homestead campus and what a timely completion to allow the Middle School students a warm, bright place to learn as we do our very best to thrive during Covid!

    Here it is!

    Steve’s Thailand Dome Home

    The mixer was hard to control but was manageable. It was fun but you had to make sure none of the mix splashed on you. The mix was then moved into the dome and we spread it on the wall. Once it hardens we coat it with a lime and pigment mix which gives it that red color you can see inside the dome. Gabby: After each section of the dome got its final lime plaster coat we mixed pigment and applied it with a paint brush, then let it dry.

    Painting the dome was a lot of fun mostly because I got to mix colors and paint with my friend Baylie. Students painting a coat of iron oxide over a base layer of yellow ochre on a freshly laid section of lime plaster.

    Our first step was to move decomposing logs to the bed in the dome. I was happy to do it because it was more fun than plastering or painting, so I immediately went to the biggest log I saw and took it to the dome. We put worm filled compost and topsoil in the garden bed and then we planted parsley, oregano, kale, collard greens, and a black fig tree.

    Using a scrap of hog panel and lining it with thick fabric cloth our vermicomposter was ready to receive its payload of worms. The students gathered partially decomposed logs from the nearby forest to layer the bottom half of the raised bed. This hugelkultur approach will help store water to lessen the need for watering and will help aerate the soil and provide a continuous source of carbon as the logs further decompose. The logs will also help innoculate the soil with their fungal inhabitants contributing to a healthy mycorrhiza that will especially benefit the black fig that is planted in the bed.

    Tag Archives: aircrete

    On top of this woody layer the students volunteered me to spread out a layer of bokashi and biochar that were brewed up by the students the previous year during permaculture class. This EM1 first level of complexity was then introduced into a substrate of wheat bran and biochar that the students had made in special burn pit that they helped construct. This mixture became an EM2 which was then used to start to digest the compost scraps that were collected during the school year through the middle schoolers awesome recycling and composting campaign.

    This well pickled food was a bit overwhelming to the nose, but will provide a nutrient and microbial rich and complex layer to the garden bed. The biochar provides incredible surface area as a microbial hotel in the soil, helps retain moisture, and sequesters carbon.

    Experiment — an Aircrete Floor Bryce: We first decided to make some aircrete because we had done some research on it and figured out that aircrete is a lot better for the environment than regular concrete.

    Aircrete turns a 94 lb. We started out with doing a test batch which turned out really crumbly. So we tried again but with less foam which turned out to be a lot better. After a few more tries we decided to start to pour the dome floor.

    Is Aircrete as Strong as Concrete?

    Our final mix was 94 lbs. Jack Comstock was the only one who poured the floor because we would not be able to do that as a class, but we helped out with preparing the area. Video: Students mix up a test batch of aircrete using a foam generator and a special attachment that injects the foam onto the blades of the cement mixer to allow the light foam to be mixed in from the bottom of the pre mixed portland cement. Here a student holds a chunk of a cured aircrete test batch as we worked to find the right balance of strength, while maintaining the insulating properties of an air pocket filled material.

    The aircrete floor set up nicely. Had this not been a renovation we would have poured a thicker slab of aircrete. We only had clearance for a 2-inch slab, but are hoping that a wire mesh skin and a final lime, cement finish layer will give us the durability we are hoping for. The dome serves the purpose of a green building learning lab, so we are excited to see how our experimentation pans out and are open to learning from our mistakes. The aircrete floor prepped and receiving its final lime plaster coat and yellow ochre pigment.

    Underneath the plastic were a bunch of triangular corrugated plastic panels, which also had to be removed. But we only had to take off the panels that were on the south and east side, which drew in the most sunlight. We then replaced all of those with polycarbonate panels. The polycarbonate panels are double layered and have pockets in between, which act as a form of insulation.

    They will keep the dome very warm and we are also going to make the door out of two polycarbonate panels. Time to Enjoy a Beautiful New Space!

    This project was a lot of work but the students pulled through. Our goal was to create an eco-friendly class space where students could work and learn. This is even more necessary now with Covid Having this extra space can help our students spread out and social distance more. The students are excited to be using this new workspace!

    What an awesome exploration of green building techniques! Thank you to the Middle Schoolers for their hard work and vision! What a beautiful addition to the Homestead campus and what a timely completion to allow the Middle School students a warm, bright place to learn as we do our very best to thrive during Covid!

    Here it is! The detail and comprehensive nature of the report demonstrates the enormity of the work that was involved in completing the assessment and I would like to recognize the work of the excellent team brought together by Ulster Wildlife as well as our own team in Mannok, Stephen Linden, Oisin Lynch, Lisa Murphy and Michael McGoldrick.

    We must and will now take ownership of this report and the actions contained in it. The report is full of very valuable recommendations on what we can practically do over the next 3- 5 years and beyond to continue enhancing and restoring our land assets, and we are very much committed to delivering on this. We will commit resources, time, people and finances to develop the recommendations. Putting sustainability at the heart of our economic recovery from Covid is key to creating a resilient economy and healthy environment for all.

    Green Growth is recognised globally as an approach to achieve economic growth and development while ensuring natural assets continue to provide the resources and environment on which our wellbeing depends.

    Responsible industry leaders recognise the importance of safeguarding and positively managing biodiversity in and around their land holdings to demonstrate good land stewardship. Mannok own and manage a significant land portfolio and it is very encouraging to see their interest and intent to maximise the biodiversity and carbon benefits making a positive contribution to global and local environmental challenges.


    Aircrete pond