Study on the influence of composite starch based hydration heat inhibitor on the properties of cement-based materials
FANG Zhou
HOU Weihong
Abstract：Based on modified starch,a composite starch based hydration heat inhibitor was prepared using various functional components such as chitosan-polyacrylate coating material,disodium EDTA,sodium methylsilicate,and active siliceous reinforcement material,and the effects of the composite starch based hydration heat inhibitor on the temperature rise performance,crack resis-tance,and waterproof performance of cement-based materials were studied.The results showed that compared with inhibitors without any admixture,composite starch based hydration heat inhibitors exhibit better temperature suppression,crack resistance,and water-proofing effects on cement-based materials.Mixed with 1%composite starch based hydration heat inhibitor FY-3 which prepared with 20%modified starch,15%chitosan-polyacrylate coating material,25%EDTA disodium,20%sodium methylsilicate,and 20%active siliceous reinforcement materials,the temperature suppression rate of cement paste reached 42.0%,the compressive strength ratio of 28 day concrete reached 106.3%,the concrete penetration height was 1.9～3.3 cm,and the anti cracking performance ratio of flat mortar reached 85.1%.
Keywords：starch basedhydration heatinhibitorscrack resistance
Publication Date：2025-12-25
Online Publishing Date：2026-01-13(First online date of this platform, not the publication date of the document)
Pages：5( 99-102,106 )