碳纤维掺量对高钙粉煤灰基地聚物复合材料性能的影响

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引用格式：. 碳纤维掺量对高钙粉煤灰基地聚物复合材料性能的影响[J]. 当代化工，2026，55（4）：857-861.

ZHANG Yan. Influence of Carbon Fiber Dosage on Performance of High-Calcium Fly Ash-Based Geopolymer Composites[J]. Contemporary Chemical Industry， 2026， 55（4）： 857-861.

（西咸新区沣西新城开发建设集团有限公司，陕西 712000）

中图分类号：TQ317；TU526

文献标志码：A

文章编号：1671-0460（2026）04-0857-05

Influence of Carbon Fiber Dosage on Performance of High-Calcium Fly Ash-Based Geopolymer Composites

ZHANG Yan

（Xixian New Area Fengxi New City Development and Construction Co.， Ltd.， Xi'an Shaanxi 712000， China）

Abstract： To improve the comprehensive performance of geopolymer composites， a high-calcium fly ash-based geopolymer composite was prepared using high-calcium fly ash and slag powder as raw materials， with varying mass fractions of carbon fiber incorporated through alkali activation. The structure was analyzed and characterized via X-ray diffraction （XRD） and scanning electron microscopy （SEM）. The flow performance， mechanical properties， and electrical conductivity of the geopolymer composites were tested using Vebe Consistometer， universal material testing machine， and resistivity meter. The results indicated that as the carbon fiber content increased， the consistency and resistivity of the geopolymer composites decreased relatively， while the mechanical performance parameters initially increased and then decreased. When the carbon fiber mass fraction was 2.0%， the flow degree of the geopolymer composites decreased to 41 mm （25.5% reduction compared to the blank material）， yet the flow performance remained relatively good. The compressive strength， elastic modulus， flexural strength， and tensile strength were 46.8 MPa， 15.9 GPa， 9.3 MPa， and 5.9 MPa， respectively， showing increases of 38.1%， 26.2%， 29.2%， and 28.3% compared to the blank material， indicating significant improvement in mechanical performance. The resistivity decreased to 51 Ω·m （96.5% reduction compared to the blank material）， demonstrating notable enhancement in electrical conductivity.

Keywords： High calcium fly ash; Geopolymer; Carbon fiber; Preparation; Activation; Composite material; Performance evaluation

建筑工程施工对水泥基复合材料的消耗量巨大，而传统的水泥基复合材料又具有碳排放量较大、生产能耗较高以及功能相对单一的缺点，无法满足现代建筑工程施工对建筑材料节能化以及多功能化的需求[1-3]。（剩余7109字）