Ive got a request to line pump into a crawl space 80 yards of 1.0 sack. Is this possible with any additives.....extra air entrainment,slick packs, ect????? ?Any suggestions or advice

No way, it would be nice to pump sand but it doesn't work. 

ADD 300-400LBS OF FLY ASH THEN GOOD TO GO

three or four hundred pounds of slag works just as good, there is a lean mix in my area that uses no cement at all mainly slag with fly ash pumps like butter in fact best cdf mix I've ever pumped

Can anyone get that mix design and post it?

No problem, we pump it everyday at an 8"+ slump through both booms and trailers. Pump continuous (re-circulate) or it will separate. If you need any slump or need to stop add two bags of bentonite to a load. If it it a slow job or lots of waiting make it a 3-4 sack with either flyash or cement.

How is it on wear parts? i used to pump agg lime and black dirt for slab jacking and it would wear my equiptment out at a 10 to 1 ratio?

its gonna eat on your piston cups and cylinders, and all your wear parts , that much sand just eats up pistons especially if its hard to pump, we always do 400 lb cementuous material , doesnt matter if its slag,cement, or fly ash , it will all pump as long as its wet enough.