▎ 摘　　要

NOVELTY - Production of self-cleaning cement-based composite material involves weaving 18-38 wt.% inorganic basalt fiber, glass fiber, aramid of ceramic fiber, fiber, aramid fiber, photocatalytic materials, nylon fiber, vinylon fiber and input fiber, mixing with ceramic fibers containing type glass fiber, basalt inorganic fiber polyethylene fiber, polypropylene fibers, polyester, polyphenylene sulfide fiber and short polyacrylonitrile fiber, mixing cement, water, fine aggregate, fly ash, silica fume, granulated blast furnace slag, metakaolin and water reducing agent, adding short fiber, adding the graphene oxide suspension, wet mixing, mixing semiconductor photocatalyst and naphthalene series water reducing agent, adding Portland cement, fly ash, fine sand and other powders to obtain cementitious powders, mixing nano-silica aerogel composite material, water and water reducing agent to obtain nano-silica aerogel composite material suspension, pouring into cementitious powders, and processing. USE - Production of self-cleaning cement-based composite material for building components, and cement concrete boards, blocks, beams, columns and pipes. ADVANTAGE - The method produces self-cleaning cement-based composite material with strong carbon fixing function and other performance, excellent nitrogen oxide and other atmospheric pollutant removing function, excellent self-cleaning function, high early strength and excellent size stability, and shortens the concrete curing time. DETAILED DESCRIPTION - Production of self-cleaning cement-based composite material involves (1) weaving 18-38 wt.% inorganic basalt fiber, glass fiber, aramid of ceramic fiber, fiber, aramid fiber, photocatalytic materials, nylon fiber, vinylon fiber and input fiber into 64 strands fiber yarns by twisting machine, (2) feeding obtained fiber yarns into fiber cloth weaving machine and weaving into net-like fiber with a mesh of 1x1 m and a width of 2.00 m, (3) combining 8-18 wt.% ceramic fibers, E type glass fiber, basalt inorganic fiber polyethylene fiber, polypropylene fibers, polyester, polyphenylene sulfide fiber, short polyacrylonitrile fiber and the obtained net-like fiber in heat preservation tunnel by transmission belt, (4) adding cement, water, fine aggregate, fly ash, silica fume, granulated blast furnace slag, metakaolin and water reducing agent to a mixer and mixing, (5) adding short fiber which is a combination of poly(vinyl alcohol) short fiber and steel fiber and stirring, (6) adding the graphene oxide suspension, wet mixing in cement mortar mixer, mixing semiconductor photocatalyst and naphthalene series water reducing agent, (7) adding Portland cement, fly ash, fine sand and other powders in a mixer and mixing evenly to obtain cementitious powders, (8) adding nano-silica aerogel composite material, 30-50% of mixing water, and water reducing agent in a mixer to stir, forming a nano-silica aerogel composite material suspension, (9) pouring the nano-silica aerogel composite material suspension into the pre-mixed uniform cementitious powders, adding balance water, stirring, (10) pouring the mixture into mold, and (11) moisturizing the cement and observing the state and temperature changes of the cement.