The invention discloses a production method of a sintered-filled self-insulation building block or wallboard. The production method comprises the following steps: adding
cement and water into crushed
construction waste or
coal ash, uniformly mixing, then adding
cellulose and a
foaming agent, with the added amount of
cellulose being 0.5-3% of the total
mass and the added amount of the
foaming agent being 1-5% the total
mass, and uniformly mixing to obtain an insulation filling material; filling up the cavity of the building block or the wallboard with the insulation filling material, and naturally curing or curing by heating, thus obtaining the filled self-insulation building block or wallboard. According to the production method disclosed by the invention, the
construction waste is used for
resource utilization, thus turning waste into wealth; a wall body has an excellent insulation performance, is a real green and energy-saving building block, plays good energy-saving and emission-reducing roles, and meets the need of
building energy conservation; the thickness of the wall body is reduced, sand
rubbing does not need to be carried out at the outer side and the inner side of the wall body, the
glaze surface of the wall body is directly used as an outer wall surface, and an inner cavity
coating is directly brushed on the inner side surface of the wall body, thus furthest reducing working procedures and saving various building materials.