Plastic cement vs Portland cement

Plastic cement has Portland in it and sets up chemically but it seems since there is more lime in plastic cement I think it would be the better choice longer term with the carbonation. One exception would be underground or underwater applications. Morning thoughts.

If you don't have Plastic cement you can add lime to Portland. Someone here with more experience could chime in.

I think you may be going " up the garden path" with the product,
From https://ezmixinc.com/returns/product_detail.cfm?display_id=18&return_id=96" target="_blank" rel="nofollow">https://ezmixinc.com/returns/product_detail.cfm?
"Plastic Cement is an air entrained Portland Cement with lime.
This product is designed to bond with Plaster Sand and stick to wire mesh on vertical applications
such as scratch and brown coat stucco."

"This cement is manufactured through a process of inter-grinding with plasticizing agents designed to enhance the desirable properties of Portland Cement-Based Plaster.
Uses include plastering and stucco, as well as other masonry applications. Meets requirements for ASTM C1328; City of Los Angeles Approved."

From Plastic cement waterproofing
Plastic cement, or Plastic Wood, is used in construction to make structures waterproof, fireproof, and resistant to termites. Plastic cement is mixed like regular cement. When wet, it can be spread or sprayed on. When it dries, it becomes flexible. Plastic cement can be used to repair cracks in concrete, waterproof roofs, seal or waterproof wooden structures, and fill in holes and cracks in concrete to prevent water damage.

John C Daley wrote:I think you may be going " up the garden path"

I like gardens and I like that it's higher in limestone than regular Portland which should allow for longer term carbonation like I mentioned. Going to test it on some non structural patios using a standard concrete mix of 4 gravel, 2 sand and one (plastic) cement.

Plastic Cement & Portland Cement?
Both Ordinary Portland cement and Plastic cement are manufactured using the same II- clinker but there are major differences from there…

Different ASTM Standards
Type II-V cement is an ASTM C150 Standard Specification for Portland Cement
Plastic cement is an ASTM C1328 Standard Specification for Plastic (Stucco) Cement

Type II-V Cement
Designed for use with coarse and fine aggregates for use in concrete
Meets ACI 318 Building Requirements for Structural Concrete
General use and meets moderate and high sulfate resistance

Plastic Cement
Low strength application
Designed for use with plaster sand
High water/cement ratio
Used for more workable and cohesive application
Freeze/thaw resistant
*High limestone addition
*High entrained air content