A korban is a barbeque with a spiritual angle to it. Wine and bread (nesachim and menachot) were often added to the festive meal. One might celebrate a business deal with friends, good food and drink at the Temple in Jerusalem; we would thereby acknowledge G-d's guiding hand in our material success, and share our bounty.
The salting of our korbanot reminds us of the need to create a society based on the principles of righteousness and justice, the antithesis of Sedom. These qualities served as the basis of G-d's choice of Abraham to establish a great nation. "I have given him special attention so that he will command his children and his household after him and they will keep G-d's ways doing righteousness and justice" (18:19).