The 3-1 success at Priestfield moved United up to 16th in League One, and a win at Vale Park could move the Iron into the top half of the table.
Laws said: "We need to build on this and get a result on Tuesday. It's between four of 14 teams for the bottom four. let's get back-to-back wins and put if firmly in our own hands.
"It's our catch-up game, we can move firmly up the League if we get a result
Iron aim for back-to-back wins
and we're going there with plenty of confidence."
United will be without Fulham loanee Michael Timlin, who is captaining the Republic of Ireland's U-21 side against Sweden, but fellow new boy Ismael Ehui could feature again after coming off the bench in Kent.
Laws added: "I thought he was excellent, he never gave the ball away and has a few tricks.
United will be without Fulham loanee Michael Timlin, who is captaining the Republic of Ireland's U-21 side against Sweden, but fellow new boy Ismael Ehui could feature again after coming off the bench in Kent.
Laws added: "I thought he was excellent, he never gave the ball away and has a few tricks.
"I thought (to put him on) to give him a taste, it was his League debut and he has given me food for thought."