Idea for Self-Healing DOME COVER Made Easy with FerroBio-Cement

Both Ferrocement and Bio-cement are good building systems. For a DIY Star Igloo, I consulted an AI about combining these. Here are some snips:
Microalgae, like cyanobacteria, can create an alkaline environment through their physiological activities. This leads to an increase in pH and dissolved inorganic carbon (DIC), which induces the precipitation of calcium carbonate (CaCO3).
By providing a calcium-rich environment, microalgae can be used to produce biocement through a process called bio-cementation. The precipitated CaCO3 forms the bio-cement material.
Utilizing Microalgae's Urea Hydrolysis Enzymes
Some species of microalgae can produce enzymes like urease or urea amidolyase that allow them to utilize urea. This metabolic pathway can also contribute to the precipitation of CaCO3 for bio-cement production.
Coco coir use:
Using Coconut Coir Mats
Coconut coir has a natural fibrous structure that can form a 3D network to reinforce the cement matrix.
Coir mats can be infused with cement paste, which is modified by incorporating pozzolanic materials to avoid fiber deterioration. The cement paste should have suitable workability and mechanical properties in fresh and hardened states.
Studies have shown that incorporating coconut fibers into cement composites can increase the bending strength and toughness of the material, even at low fiber contents (around 1% by weight).
Bio-cement Slurry:
Ingredients, such as water, sand, and a binding agent (often bacteria or other microorganisms). Crushed shells and pozzolan cement are also good additives.
Enabling Microalgae Growth
The coconut coir mat can provide a suitable substrate for microalgae growth. Microalgae require specific conditions to thrive, including light, nutrients, water, the right temperature, and pH levels.
The alkaline environment created by the cement paste can promote the growth of certain microalgae species, such as cyanobacteria, which can induce calcium carbonate precipitation and contribute to the strength of the composite over time.
Providing adequate light, nutrients, and aeration to the microalgae within the cement-infused coir mat will be crucial for their survival and proliferation.
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Let us rethink our building system to adapt to Mother Nature and to find technologies that bring us more in harmony with the ecosystem.
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