Mortar containing organic silicon, concrete shrinkage reducing agent and preparation method thereof

The invention discloses mortar containing organic silicon and a concrete shrinkage reducing agent and a preparation method thereof. The pH value is 5.5-6, and the concrete shrinkage reducing agent isprepared from the following raw materials: TPEG, unsaturated carboxylic acid and derivatives thereof, an anionic surfactant, an organosilicon monomer, an ethylene glycol acrylate hydrophobic monomer,an initiator, a reducing agent, a chain transfer agent, liquid caustic soda and deionized water. According to the invention, TPEG, specific unsaturated carboxylic acid and derivatives thereof, a specific organosilicon monomer and a specific ethylene glycol acrylate hydrophobic monomer are used as basic raw materials; molecular structure design and regulation are performed according to functional requirements of shrinkage reduction and dispersion performance, unsaturated polyether and unsaturated carboxylic acid are copolymerized to form a main chain, and amino, sulfonic acid groups, amide groups, siloxane structural mo