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纤维材料及制品

郑 昊1,张国辉1,*,孙俊崇2,顾德锦1,顾艳霜3

摘   要:介绍了钢纤维自密实混凝土(Steel fiber reinforced self-compacting concrete,SFRSCC)的工作性(坍落扩展度、扩展时间、J环扩展度)和力学性能(抗压、抗拉和弯曲性能)研究进展,重点分析了SF掺量对SFRSCC性能的影响规律,揭示了SF的作用机理,并对SFRSCC的未来研究方向进行了展望。Abstract: The progress in research on the workability (slump-flow, slump-flow time, and J-ring flow) and mechanical properties (compressive, tensile, and flexural performance) of steel fiber reinforced self-compacting concrete (SFRSCC) is introduced. The influence of SF content on the performance of SFRSCC is analyzed in detail, the mechanism of SF is revealed, and the future research directions for SFRSCC are discussed.
郑昊,张国辉,孙俊崇,等.钢纤维自密实混凝土(SFRSCC)工作性和力学性能研究进展[J].混凝土与水泥制品,2025(11):57-61. ZHENG H,ZHANG G H,SUN J C,et al.Research progress on workability and mechanical properties of steel fiber reinforced self-compacting concrete (SFRSCC)[J].China Concrete and Cement Products,2025(11):57-61.

王德辉1,2,冷发光1,杨 敏2,陈 榕3,陈 燃4,翁林铖5

王德辉,冷发光,杨敏,等.环境温度和暴露时间对玻璃纤维增强聚合物(GFRP)筋海水海砂混凝土性能的影响[J].混凝土与水泥制品,2025(11):52-55. WANG D H,LENG F G,YANG M,et al.Influence of environmental temperature and exposure time on performance of glass fiber reinforced polymer (GFRP) reinforced seawater sea sand concrete[J].China Concrete and Cement Products,2025(11):52-55.

贾陆军1,2,3,胥有利3,赵 平3,蒋 勇1,2,3,霍冀川1,2,*

摘   要:研究了玄武岩纤维(BF)的掺量(0.1%、0.2%、0.3%)和长度(6 mm、9 mm)对砂浆力学性能、干燥收缩性能和耐不同溶液(Ca(OH)2溶液、KCl溶液、Na2SO4溶液)腐蚀性能的影响,并与清水养护(水养)组进行了对比,同时分析了BF对砂浆性能的微观作用机理。结果表明:当BF长度为9 mm、掺量为0.2%时,砂浆的抗压和抗折强度最大;随着养护龄期的增加,试件的抗折强度、抗压强度和干缩率均增大;试件经不同溶液浸泡后的抗折和抗压强度大小顺序为清水>Ca(OH)2溶液>KCl溶液>Na2SO4溶液,干缩率大小顺序为清水<Ca(OH)2溶液<KCl溶液<Na2SO4溶液;BF的耐腐蚀性较好,其通过桥接作用改善了砂浆内部的界面过渡区,增强了砂浆的抗裂性能和耐久性能。Abstract: The effects of the content (0.1%, 0.2%, 0.3%) and length (6 mm, 9 mm) of basalt fiber (BF) on the mechanical properties, drying shrinkage, and corrosion resistance of mortar in different solutions (Ca(OH)2 solution, KCl solution, Na2SO4 solution) were studied, and compared with the water curing group. At the same time, the micro mechanism of BF on mortar properties was analyzed. The results show that when the length of BF is 9 mm and the content of BF is 0.2%, the compressive strength and flexural strength of the mortar are the highest. With the increase of the curing age, the flexural strength, compressive strength, and drying shrinkage rate of the specimens in different solutions all increase. The order of flexural and compressive strength of specimens soaked in different solutions is as follows: water > Ca(OH)2 solution > KCl solution > Na2SO4 solution, and the order of drying shrinkage rate is water < Ca(OH)2 solution < KCl solution < Na2SO4 solution. BF has good corrosion resistance, which improves the interface transition zone inside the mortar through bridging effect, enhancing the crack resistance and durability of the mortar.
贾陆军,胥有利,赵平,等.不同腐蚀环境下BF对砂浆性能的影响及机理研究[J].混凝土与水泥制品,2025(11):47-51. JIA L J,XU Y L,ZHAO P,et al.Study on influence and mechanism of BF on mortar performance under different corrosive environments[J].China Concrete and Cement Products,2025(11):47-51.