Bricks, Masonry, Asphalt and Concrete - brick repair

I have some kind of fungus or somrthing close to that eating on the bricks around my bbq pit. There is a white coloration on the affected bricks. they are slowly crumbling and only one brand is affected ( Standard) The other bricks acme and the white and yellow type are ok. I washed the area down with bleach , didnt help . any ideas?????thanks

I don't know what type of fungus it is, but we can kill it, clear up the efflorescence, and keep it from returning any time soon. Solving crumbing brick means replacement. Mortar can be repointed.

Stage one: potassium hydroxide. This is sold as intensive stone and masonry cleaner. It is highly caustic, so read the labeling and follow handling and safety instructions. Do: wet the brick before applying.

Stage two: from a masonry supply purchase an efflorescence remover. Again read and follow instructions.

Stage three: from a masonry supply purchase a penetrating breathable sealer (not inexpensive, but you do not want a topical sealer or one that is not breathable). From a paint store purchase M1 or another mildewacide and add this to the sealer.

If repointing is necessary do this before applying the sealer. I suspect the problem stems from the lack of a bond break between the brickwork and the ground, and that moisture is being wicked from th soil.