Put strawberry chunks in a bowl. Pour tequila over strawberries. Marinate in refrigerator for 2 hours.
Blend strawberries and tequila in a blender until fully pureed; strain into a large pitcher to remove seeds.
Stir strained berry mixture, soda, beer, and limeade concentrate together in a pitcher. Add ice cubes to chill. Rim glasses with salt before pouring margaritas.
