raspasti se

1. to fall apart; to break up; to disintegrate
   Stara stolica se raspala čim sam seo. — The old chair fell apart as soon as I sat down.
   Brak im se raspao posle pet godina. — Their marriage broke up after five years.
2. (of organic matter) to decompose; to rot away
   Opalo lišće se do proleća potpuno raspalo. — By spring the fallen leaves had completely decomposed.

In these meanings it is used with se: raspasti se. Perfective; the imperfective partner is raspadati se.