Preparation and key performance sudy of one-part component polymer anti-crack and waterproof plastering mortar
MA Shilong
Abstract：To address issues such as cracking,spalling,leakage,and durability in exterior wall protective mortar layers,one-part component polymer anti-crack and waterproof plastering mortar has been developed.An orthogonal experiment was conducted to in-vestigate the effects of cement,polymer powder,cellulose ether,and water-reducing agent on mortar properties.The results show that cement significantly influences the waterproofing,crack-resistance,and bonding properties of mortar;cellulose ether facilitates the improvement of mortar workability and toughness;and water-reducing agents are the key components for achieving high strength,high durability,and low porosity.The one-part component polymer cement mortar prepared based on the optimized formulation ex-hibits outstanding performance.The mortar exhibits a 2-hour consistency loss rate of 14.2%,water retention rate of 99.91%,bonding strength with cement mortar is 1.07 MPa,bonding strength with thermal insulation substrate is 0.35 MPa,compressive-to-flexural strength ratio is 2.6,water absorption rate is 2.7%,and water resistance pressure reaches 1.6 MPa.
Keywords：one-part component polymer anti-crack and waterproof plastering mortarworking performancebonding performancewaterproof performanceanti-cracking performance
Publication Date：2025-11-25
Online Publishing Date：2025-12-15(First online date of this platform, not the publication date of the document)
Pages：5( 135-138,147 )