Hi! There is a crack in my double brick house which is around 55 years old. This is a two storey house with concrete ceiling and the crack is in the ground floor. The soil is clay and I recently put concrete all around the house on the outside. Since then the crack has significantly increased. It is 14 mm wide at one point. The crack is visible inside and outside the house. Can anyone pls tell me how to fill and fix the gap? Thanks red

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