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Harare: Sri Lanka, who went into stumps on 102 for 4, had opened up a 334-run lead with two full days remaining.
Sri Lanka started their second innings shakily against a fired up attack. Carl Mumba showed significant recovery from a knee trouble that forced him to hobble off the field early on the first day. He bent his back and hustled the batsman for pace, the reward for which came in the form of Kusal Mendis, who top-edged a pull to mid-on.
Kaushal Silva, the opener, and first-innings centurion Dhananjaya de Silva were out to juicy full tosses. Upul Tharanga, played all around a Cremer delivery that spun back in to trap him leg before wicket.
Dimuth Karunaratne, guilty of frittering away a start in the first innings, overcame patches of discomfort against the away-going deliveries, to bring up a half-century. He helped Asela Gunaratne, coming off a maiden Test ton in the first innings, see off a nervous last 20 minutes as Sri Lanka stretched ahead despite a top order wobble, courtesy the efforts of their 38-year old captain.
Sri Lanka's Rangana Herath became just the third bowler in history to pick up five-wicket hauls against all nine other Test countries as Zimbabwe were bowled out for 272.
Herath recorded figures of 5 for 89 - his first five-wicket haul against Zimbabwe - to bowl Sri Lanka to a 232-run lead in the first innings on the third afternoon of the third Test.
After the tourists opted not to enforce the follow-on, openers Dimuth Karunaratne and Asela Gunaratne took them to stmp on 102 for four.
Although Zimbabwe made a promising start to their reply to Sri Lanka's first innings total of 504 all out, reaching 134 for two on the third morning, they ultimately succumbed to spin with offspinner Dilruwan Perera picking up 3 for 51 as the hosts lost their last five wickets for just 19 runs.
However, it was fast bowler Suranga Lakmal who set Sri Lanka on their way in the morning session, which saw Zimbabwe resume on 126 for two, when he had Craig Ervine caught at slip for 64 in the eighth over of the day.
Having picked up both of the wickets to fall on the second evening, Herath made a key breakthrough when he bowled Brian Chari for a career-best 80 with a quicker delivery, and then dismissed Malcolm Waller for 18 on the stroke of lunch.
Zimbabwe had been rescued by their lower order in the first Test, but after the interval Perera ensured there would be no such recovery as he grabbed three wickets in quick succession.
The offspinner trapped Sean Williams for 58, had Graeme Cremer caught at slip and then trapped Peter Moor lbw for 33 all in consecutive overs.
All that was left was for Herath to pick up a record fifth wicket, as he trapped Carl Mumba lbw to join countryman Muttiah Muralitharan and South Africa's Dale Steyn among an elite group of bowlers with five-wicket hauls against all opponents.
Brief scores
Sri Lanka - 504 (Dhananjaya 127, Gunaratne 116, Tiripano 3-91) and 102/4 (Karunaratne 54, Mumba 3-31)
Zimbabwe - 272 (Chari 80, Ervine 64, Williams 58, Herath 5-89, D Perera 3-51)
Status - Sri Lanka lead by 334 runs
