• Ferrocrete
• Concrete
• Cement

Links

• Fountain: https://www.youtube.com/watch?v=JMLWvHzwBhs
• Wizard Workshop: https://www.youtube.com/@wizardofeutopia/videos
• Jorge's Balls: https://www.youtube.com/watch?v=d_UUlWM0azc
  • Jorge's Prettier Balls: https://www.youtube.com/watch?v=duxDnS5KyIY
• Faux Rock: https://www.youtube.com/@fauxrock/videos
• Creating Concrete: https://www.youtube.com/@creatingconcrete
• Proper DIY: https://www.youtube.com/@ProperDIY
• Mold Making: https://www.youtube.com/watch?v=ihlZ9Kh_uPo
• Fountains
  • https://i.ytimg.com/vi/dgadk1fQhq0/maxresdefault.jpg
  • https://i.pinimg.com/736x/fe/c3/7a/fec37a2b78669dfd2cc18a48852e1090.jpg
  • https://i.pinimg.com/originals/08/50/6c/08506c5c198d07b9902b9696c448d0be.jpg
  • https://www.kinseyfamilyfarm.com/s/wp-content/uploads/fountains/Tier-Fountain-Triad-3.jpg
  • https://66potterybali.com/wp-content/uploads/2020/04/CWF.0267a.jpg
  • https://i.pinimg.com/originals/8f/53/e7/8f53e7b9bba5ea4cdde6cd552b7f5761.png
  • http://bestfountainideas.com/wp-content/uploads/2016/05/concrete-leaf-fountain.jpg
  • https://i.pinimg.com/originals/17/7d/16/177d16963b615007b5060ade01f7fa4f.jpg
  • https://i.pinimg.com/originals/15/28/c3/1528c375f54d36fe7c786954897e5290.jpg
  • https://i.pinimg.com/originals/d9/b0/a9/d9b0a9aa440908a8cae7441678ea016c.jpg
  • https://i.pinimg.com/originals/4c/ae/22/4cae22ee7242d8edeb7b8325aee05014.jpg
  • https://i.pinimg.com/originals/d0/74/33/d074331b59e79456caed819bffca2f01.jpg
  • https://ak1.ostkcdn.com/images/products/is/images/direct/1f437bf129267c97bda398ca2362ccaca926c076/37%22-Grey-Cement-Modern-Outdoor-Floor-Fountain-with-Lights.jpg

Project Ideas

• Concrete Patio Furniture using Silicone Molds for Flat Castings
  • Similar to PlayaTech plywood flatpack furniture
  • Maybe not great because two-sided molds for concrete sound challenging
  • Maybe make a tabletop, bench seat, or bench back, where one side is unseen

Formulations

Ratios

• Dryer mix is stronger, too wet leaves voids when the water evaporates.
  • Plasticizers act like water, but don't evaporate.
• Aggregate:Portland
  • 1:1 super strong, super expensive
  • 10:1 super weak, super cheap (super light, if using vermiculite or perlite)
  • 2:1 / 3:1: normal

Ingredients

• Portland Cement
  • S-Type 1/2: Uses lime, weighs 78 pounds per bag, more sticky, less compressive strength.
  • Standard: 96 pounds per bag, less sticky, more compressive strength.
  • Or use standard and add lime (3 portland : 1 lime by volume)
• Pumice, Vermiculite, Perlite
  • Light Weight Aggregate

GPT

Ferrocement is a type of thin reinforced concrete made with a closely spaced, multiple layers of wire mesh or fine rods, which is then impregnated with a cement-sand mortar. In addition to cement and sand, several additives can be used in ferrocement to enhance its properties. Here are some common additives, their purposes, and typical quantities:

1. Water:
   • Purpose: Essential for the hydration of cement and to create the paste that binds the aggregates.
   • Quantity: Water-cement ratio typically ranges from 0.4 to 0.6 by weight.
2. Admixtures:
   • Types and Purposes:
     • Plasticizers (Water-reducing agents): Improve workability without adding more water. Typical dosage is 0.1% to 0.4% of cement weight.
     • Superplasticizers (High-range water reducers): Allow for significant reductions in water content, improving strength and durability. Dosage can range from 0.5% to 3% of cement weight.
     • Retarders: Slow down the setting time of the cement, useful in hot climates or for complex shapes. Dosage usually around 0.2% to 0.6% of cement weight.
     • Accelerators: Speed up the setting and hardening process, useful in cold climates. Dosage varies, often around 1% to 2% of cement weight.
     • Air-entraining agents: Introduce tiny air bubbles to improve freeze-thaw resistance. Typically used at 0.05% to 0.2% of cement weight.
3. Fibers:
   • Purpose: Improve tensile strength, crack resistance, and overall durability.
   • Types and Quantities:
     • Steel fibers: 0.5% to 2% by volume.
     • Glass fibers: 0.1% to 0.5% by volume.
     • Polypropylene fibers: 0.1% to 0.3% by volume.
4. Pozzolans:
   • Purpose: Improve durability, reduce permeability, and enhance long-term strength.
   • Types and Quantities:
     • Fly ash: Can replace 15% to 30% of cement weight.
     • Silica fume: Used at 5% to 10% of cement weight.
     • Metakaolin: Typically used at 5% to 10% of cement weight.
5. Silica Sand:
   • Purpose: Used as fine aggregate to improve the workability and finish of the mortar.
   • Quantity: Replaces a portion of the regular sand, often 10% to 30% by volume of the sand component.
6. Lime:
   • Purpose: Improves workability and plasticity of the mortar.
   • Quantity: Typically used at 5% to 10% of the cement weight.
7. Waterproofing Agents:
   • Purpose: Improve water resistance and reduce permeability.
   • Types and Quantities: Dosages vary widely depending on the specific product, usually around 1% to 2% of cement weight.

The exact quantities and combinations of these additives will depend on the specific requirements of the ferrocement application, including desired strength, workability, setting time, and durability.