Cast-in-place concrete core column ring beam house manufactured by light composite board and assembling method

The invention discloses a light composite board which can overcome the defects in the prior art, a cast-in-place concrete core column ring beam house manufactured by the light composite board and an assembling method. In the light composite board manufacturing process, structural steels are arranged around a board to form a keel. Composite boards are aligned in a construction field, joints among boards are caulked and smeared by polymer mortar so as to form a sealed space on the junction of two boards by the structural steels, and a ring beam U-shaped slot faces upwards. On the construction site, polymer fine stone concrete is poured into the space to form a core column and a wall body so as to assemble the house. The system is stressed clearly and reasonably and can be calculated according to a steel tube concrete structure. The cast-in-place concrete core column ring beam house manufactured by the light composite board has the characteristics of light weight, high strength, earthquake and wind resistance, t