Mudjacjing (concrete slab leveling) Slurry

Where can I find a description of the outcomes of various slurry mixtures? I was under the assumption that the slurry used in these projects was simply the fine lime powder one finds at the bottom of a pile of white gravel mixed with sand. Now I see someone advertising their mixture contains Portland cement (a third I believe).
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.