The invention discloses a preparation method of an inorganic binder sand-based water permeable
brick and a product. The invention belongs to the field of building materials. Facing sand which is moderate in particle size, narrow in distribution range and good in particle shape is adopted as aggregate, flowability of the facing sand is more balance, and the contact area between the facing sand andcement is increased, so that the pore uniformity of a
surface layer and the
bonding strength between adjacent sand grains are improved; besides, the number of times of addition and addition time points of water,
cement, facing sand and a backing material in the surface material and a backing material are changed, the
binding force and the pore structure between the
cement and the facing sand and between the
cement and the backing material are changed, the contact area between the cement and the water is increased through a two-time water-cement adding method, the cement is more sufficiently hydrated, and the setting strength of the cement is improved. The method solves the problem that the strength,
wear resistance and water permeability of the existing inorganic binder sand-based water permeable
brick cannot be considered at the same time, and also solves the problem that the
weather resistance and service lifetime of the existing sand-based water permeable
brick are reduced as the strength,
wear resistance and water permeability of the existing sand-based water permeable brick are improved by adopting an organic binder.