The invention discloses a
foam concrete and a preparation method, belonging to the technical field of building materials and construction, comprising the following components of
cement, ore
powder,
fly ash and water, and further comprising a waterproof agent, fibers, an accessory and a
foaming agent. The preparation method comprises the following steps of: adding 50-200 parts by weight of the
cement, 10-100 parts by weight of the ore
powder, 10-150 parts by weight of the
fly ash, 60-250 parts by weight of the water, 0-3 parts by weight of the waterproof agent, 0.3-1 part by weight of
fiber and 0.1-3 parts by weight of accessory to a container, evenly stirring the components by a stirring
machine, adding 6-20 parts by weight of the
foaming agent, mixing and stirring the mixture, quickly paving the obtained material on the construction surface for natural
smoothing, standing for finishing foaming within 2-30min to obtain the desired strength after 24h, and maintaining to form the formed
foam concrete. The invention has high strength, light quantity, low head
conductivity coefficient, simple formula, convenient construction and low cost due to the utilization of industrial and mining waste materials, and the invention can partially replace polyvinyl
benzene foam boards, extruded sheets and
slurry particle insulating boards of a heat insulating
system; in addition, the invention is applied to the field construction of a
foam concrete heat insulating
system of floors and roofs and the production of the foam concrete blocks and heat insulating slabs in a factory by using moulds.