Your main rotation is BT - WW - Open - BT - Open - Open - Repeat
In open spaces you should be throwing in your instant slams and sundering when those don't proc. In addition for the "Open - Open" space you can switch stances, rend, and switch back before your BT is back up for use.
One ot the biggest problems I see with your gear is your haste trinket - even something as low as Banner of Victory is going to be a dps increase for you.
Your spec is very odd... why would you have improved charge when you don't even use charge as fury? Get 2/2 in improved rend, 3 in Heroic strike, 2 in Iron Will, 3 in Tactical Mastery and then the normal Impale, Deep Wounds and Two Handed Weapon specialization.
You need to get rid of furious attacks and put them into better use - take out a point in unbridled wrath and get improved intercept and heroic fury - this will dramatically change your play style for the better, little to no downtime on most fights where you normally would be stuck running.
Lastly you need glyph of heroic strike... this is your bread and butter attack at high levels of gear, why would you make it cost 12 rage when it can only cost you 2 rage on crits?
Not trying to sound mean but you certainly have some work to do and researching your class.. These are some pointers that should help you out to begin with, good luck :]