Re: reg. bricks for a walkway?
I am not a mason, and I've never laid brick for a walkway. I can't give you any specific advice on installation. Are they clay or concrete?
But I believe pavers are typically solid, and may be sealed somehow. Water getting into the brick and freezing can cause spalling, where the surface of the brick chips off. I would think that this only applies to clay bricks, not concrete. But I might be wrong.
That said, they are free, and when something's free you won't feel so bad if it doesn't work out. You could try setting a couple of dozen in a test spot and see how they handle a winter. It would be a shame to put them all in and have them destroyed in a year or two. Perhaps you can think of some other use, like an outdoor fireplace? Of course, you should only use refractory brick for the lining of the firebox and chimney.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.