Specialized Roubaix as a gravel bike?

I recently got my first tri bike (QR PRfive) and was thinking about converting my Roubaix SL4 Disc Comp to a gravel bike…really, just changing the tires out. It’s a great bike, strong CF frame, but I’m wondering if it could handle the abuse of non-paved roads. Does anyone have any similar experience with this bike or other road bikes going to gravel?

I just take a Roubaix 2020 to use it also as a gravel bike. With 32mm tires I could do also soft offroad routes. And i I want to put a larger tires I could think to put 650 wheels