Waterproof fireproof wheat straw-polystyrene particle compounded thermal insulation mortar and preparation method thereof

Abstract

The invention discloses a waterproof fireproof wheat straw-polystyrene particle compounded thermal insulation mortar and a preparation method thereof. The mortar comprises following raw materials: wheat straw, vitrified beads, cement, fly ash, sand, re-dispersible latex powder, polypropylene glycol fiber, cellulose ether, polystyrene particles, polyvinyl alcohol, paraffin, an emulsifier OP-10, acrylic acid monomers, a K2S2O8 solution, and aqueous epoxy resin emulsion. Polyvinyl alcohol (PVA) is used to modify paraffin, PVA is evenly distributed in paraffin to form a three-dimensional water isolation membrane so as to achieve a waterproof effect; acrylic acid monomers are taken as a modification inter-body, K2S2O8 is taken as an initiator, and OP-10 is taken as an emulsifier to prepare a paraffin-acrylic acid-polyvinyl alcohol waterproof agent. Aqueous epoxy resin emulsion has a water reducing effect and is added into cement mortar to improve the performance of cement mortar. Polystyrene particles and vitrified beads are mixed to enhance the fireproof and thermal insulation performance of mortar.

Description

technical field [0001] The invention relates to the field of mortar, in particular to a waterproof and fireproof wheat straw-polystyrene particle composite thermal insulation mortar and a preparation process thereof. Background technique [0002] my country is a large agricultural production country, which produces a large amount of crop straw, direct burning will cause serious environmental problems, such as soil erosion, desertification and so on. Under certain conditions, the crop straw can be widely used after corresponding treatment. [0003] In Zhang Lin's master's degree thesis "Preparation and Performance Research of Vitrified Microbeads-Wheat Straw Composite Thermal Insulation Mortar", wheat straw was treated with alkali, vitrified microspheres and wheat straw were used as thermal insulation aggregates, and fly ash Sand is used as an admixture to prepare a new type of thermal insulation mortar with good thermal insulation performance, but it has insufficient waterp...

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Problems solved by technology

[0003] In Zhang Lin's master's degree thesis "Preparation and Performance Research of Vitrified Microbeads-Wheat Straw Composite Thermal Insulation Mortar", wheat straw was treated with alkali, vitrified microspheres and wheat straw were used as thermal insulation aggregates, and fly ash Sand is used as an admixture to prepare a new type of thermal insulation mortar with good thermal insulation performance, but it has insufficient waterproof and fireproof performance.