What is best to use to fill in the cracks

[kimmey]

Ok, we are repairing the floor in our older gymnasium which was built in 1970. The walls are concrete block and the floor is concrete with 9" (assumed asbestos) tile. The floor around the edge of the wall is cracking due to expansion and contraction. We are going to put base molding down, but want to fill in those cracks before putting down the molding. What is best to use to fill in the cracks? I know using a concrete filler will just crack again...any advice is appreciated.

[Vettori]

Thank for letting me know about it..!!
Can you tell me any of those stores or the links for their website so that we can easily go and buy it from there...!!