Method for strengthening cold-formed thin-walled steel column based on geopolymer foam concrete

• Main Authors: CHEN JIHAO, HOU YAJIE, NIU HONGXIANG, HAN AIHONG, TANG XIAOSONG, LI KELIANG, LI YANCHUN, WU ZONGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: ARTIFICIAL STONE; BUILDING; BUILDING MATERIALS; CEILINGS; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; LIME, MAGNESIA; METALLURGY; REFRACTORIES; ROOFS; SLAG; STRUCTURAL ELEMENTS; TREATMENT OF NATURAL STONE; WALLS, e.g. PARTITIONS

The invention discloses a method for strengthening a cold-formed thin-walled steel column based on geopolymer foam concrete. The method specifically comprises the steps of using cold-formed thin-walled steel for building a column base body in a surrounding mode, uniformly stirring the slag powder and the fly ash, then adding the construction waste powder, and stirring to obtain a powder base material, adding an alkali activator and water into a concrete mixer, stirring, sequentially adding polypropylene staple fibers, a powder base material and a foaming agent, and stirring in batches to obtain geopolymer foam concrete slurry, pouring the geopolymer foam concrete slurry into the column base body, standing and foaming, and curing to obtain the geopolymer foam concrete reinforced cold-formed thin-walled steel column. The cold-formed thin-walled steel-geopolymer foam concrete column is adopted as a novel combined component in the light steel and light concrete combined structure, good sound insulation and noise