Best tool and blade to cut 8″ pvc

pipepvc

This is my first post.
I need to cut 1' pieces of pvc sewer pipe for a few projects. The pipe will range from 4" to 15" diameter high density sewage (and perhaps fire-rated industrial pipe). I've researched at length all options from grinders, jigsaws, circulars, and reciprocating. I have a table saw for precision finishing at home, but I need a BATTERY POWERED option to simply chop 20-foot pipes into 1 foot cylinders to transport them from the factory yard to my house (I don't have a truck). So clean lines aren't crucial, but a tool with good battery economy and ease of use is preferable. Any input would be greatly appreciated, as I am relatively new to tools, but will be using them for this project a great deal. I would ideally like a tool that could also be used for lengthwise cuts of these 1-foot pvc cylinders, as I will need to cut all pieces into half-pipes, lengthwise. Tonight I bought this black & decker 20v lithium combo kit for $229.00 at Rona (circular saw, and reciprocating saw, with drill, two batteries, charger, work light, one circle blade, and one recip blade).
Am I on the right track? I've heard mounting the circular blade backwards is better for pvc. Oh, and don't say use a hacksaw; I would be there for hours, and I only have 20 minutes in the pipe manufacturing yard, as they are kind enough to give me industrial scraps for free.
THANK YOU!!!

Best Answer

A suggestion, I don't know if this would work out or not, you'd have to experiment ... Rip the pipe lengthwise with the circular saw first, flip it over and rip it again - now you have your half pipes. Stack those, and cut them with the reciprocating saw or the hand saw. It will be easier to handle.

You'll get a lot more done if you bring something to hold the pipe while you cut it, don't forget about that.

I agree with the suggestion to use a hand saw, but get a BIG one. Even if you're not very fast with it, it will be faster than the power tools once the battery dies.