The invention discloses a foam
cement filling type concrete composition heat preservation building block and a manufacturing method of the foam
cement filling type concrete composition heat preservation building block, which belongs to the technical field of energy-saving building materials. The building block comprises a concrete base body with a cavity, wherein at least one
air space which passes through the base body is formed in the inner side of at least one outer surface; at least one cavity of which the cross section area is greater than the cross section area of the
air space is further formed inside the base body; a foam
cement filling body is arranged in the cavity. Due to the concrete base body, the concrete composition heat preservation building block has good physical and mechanical properties and durability, due to the
air space and the foam cement, the concrete composition heat preservation building block has good thermal performance, and meanwhile a manufactured product is conveniently transferred, built, decorated and constructed because of the air space. The foam cement filling type concrete composition heat preservation building block has the characteristics of light weight, good heat preservation,
thermal insulation and sound insulation effects, high strength, non-
combustibility, anti-permeability and the like, and can be widely applied to internal and external walls of urban frame structure buildings and rural buildings. The building block is convenient to construct and stable in performance, and the working intensity and the construction cost are greatly alleviated and lowered.