材料科学
极限抗拉强度
丁苯橡胶
微晶纤维素
乳状液
水泥
复合材料
抗压强度
苯乙烯
纤维素
聚合物
化学工程
共聚物
工程类
作者
Pornlada Pongmuksuwan,Wanlop Kitisatorn
出处
期刊:Key Engineering Materials
日期:2024-12-13
卷期号:998: 27-34
摘要
In geotechnical engineering, the enhancement of soil properties is crucial for cost-effective construction practices. This study investigates the impact of incorporating microcrystalline cellulose into styrene-butadiene emulsion modified cement-stabilized soils. The mechanical properties, including unconfined compressive strength (UCS) and indirect tensile strength (ITS), were evaluated alongside morphological analysis using scanning electron microscopy. Results indicate that the addition of microcrystalline cellulose influences the mechanical behavior of the composite material in a nuanced manner. At lower microcrystalline cellulose content (1%), an improvement in tensile strength is observed due to enhanced interfacial bonding between cellulose hydroxyl groups and styrene-butadiene emulsion surfactants. However, at higher microcrystalline cellulose content (2% and 3%), a reduction in tensile strength occurs, attributed to hindered cement hydration. Nonetheless, the incorporation of styrene-butadiene emulsion contributes to the transition from brittle to ductile behavior, enhancing toughness. Morphological analysis corroborates these findings, highlighting the complex interactions between microcrystalline cellulose, styrene-butadiene emulsion, and cement-stabilized soils. This study provides valuable insights for optimizing the mechanical performance of polymer-modified cement-stabilized soils, paving the way for the development of sustainable construction materials with improved resilience and durability.
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