If you avoid Ironclad's attacks he will leave himself open. Ironclad will pick up any nearby large objects and use them as weapons so try to stay away from him while he has a weapon. He will swing the weapon at the Hulk and eventually tire out. When he tires or hits himself he will be stunned (stars over his head) move in and land some punches. Attacking at any other time is useless as no damage is done and you will be vulnerable to Ironclad's very powerful attacks.
Keep throwing projectiles on his shield until he becomes dizzy then punch him several times until he starts using nearby rubble to create a shield. Keep repeating this strategy until he has been defeated.
Find the comic books by searching at the indicated locations
1. Face Of The Monster: At the Latverian Embassy.
2. Bruce And Goliath: At Stark Tower.
3. The Flop-tastic Four: On the Baxter Building.
4. Sonic Assault: Two blocks west of One World Plaza, two blocks north of the Reuters Building. It is located where the two intersect on a ledge mid-building.
5. Bye Bye Bi-Beast: At the southern tip of the island near the docks in a pass through the building.
6. Talbot The Madman: At the Daily Bugle.
7. Just a Hop Skip And A Jump: On the domed roof of the World Financial Center.
8. Blonsky... Broken...: Go to the Latverian embassy, then move towards Central Park. When you get to the last building before Central Park, turn south. It is on top of tallest building with the dome top.
9. Turrett Syndrome: In the Central Park subway terminal.
10. Fired From The Sky: On the rooftop of Nelson and Murdock, Attorneys At Law.
11. The Lesser Of Two Evils: On top of a fountain near the Flatiron Building.
12. Enclave's Ultimate Weapon: On the Belvedere Castle in Central Park near the lake.
13 This Is Only a Test...: Start at the top right corner of Central Park and go up one square. You should be on a big square building on the map. Go right one building and you will see it in the upper left of the lower roof of that building.
14. Betty's Peril: On the top of the Flat Iron Building.
15. Abomination Domination: At the Marvel Comics Office front door.