Dana Koňáková, Vojtěch Pommer, Kateřina Šádková, Robert Černý, Eva Vejmelková
{"title":"随机分布硅酸铝纤维水泥复合材料的耐高温性能","authors":"Dana Koňáková, Vojtěch Pommer, Kateřina Šádková, Robert Černý, Eva Vejmelková","doi":"10.1016/j.cemconcomp.2023.105339","DOIUrl":null,"url":null,"abstract":"<div><p>Aluminium silicate fibres are known for their low thermal conductivity and specific heat capacity, high thermal shock resistance, low weight and excellent corrosion resistance. However, their use in cement-based composites for high-temperature applications has been very limited. In this paper, the effect of randomly dispersed alumina-silicate fibres on the high-temperature resistance of cement composites is analysed as a function of the mix composition. The measurement of the basic physical, mechanical, hygric and thermal properties shows the most favourable results for the composites containing calcium aluminate cement and basalt aggregates, the fibre dosage of 1 % being an optimal solution. A comparison with the results reported by other researchers shows that in the temperature range up to 1000 °C, aluminium silicate fibres perform better than steel, glass and carbon fibres for both Portland cement and calcium aluminate cement matrices, and their effect is similar to that of basalt fibres.</p></div>","PeriodicalId":9865,"journal":{"name":"Cement & concrete composites","volume":null,"pages":null},"PeriodicalIF":10.8000,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-temperature resistance of cement composites with randomly distributed aluminium silicate fibbers\",\"authors\":\"Dana Koňáková, Vojtěch Pommer, Kateřina Šádková, Robert Černý, Eva Vejmelková\",\"doi\":\"10.1016/j.cemconcomp.2023.105339\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Aluminium silicate fibres are known for their low thermal conductivity and specific heat capacity, high thermal shock resistance, low weight and excellent corrosion resistance. However, their use in cement-based composites for high-temperature applications has been very limited. In this paper, the effect of randomly dispersed alumina-silicate fibres on the high-temperature resistance of cement composites is analysed as a function of the mix composition. The measurement of the basic physical, mechanical, hygric and thermal properties shows the most favourable results for the composites containing calcium aluminate cement and basalt aggregates, the fibre dosage of 1 % being an optimal solution. A comparison with the results reported by other researchers shows that in the temperature range up to 1000 °C, aluminium silicate fibres perform better than steel, glass and carbon fibres for both Portland cement and calcium aluminate cement matrices, and their effect is similar to that of basalt fibres.</p></div>\",\"PeriodicalId\":9865,\"journal\":{\"name\":\"Cement & concrete composites\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.8000,\"publicationDate\":\"2023-10-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cement & concrete composites\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0958946523004134\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cement & concrete composites","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0958946523004134","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
High-temperature resistance of cement composites with randomly distributed aluminium silicate fibbers
Aluminium silicate fibres are known for their low thermal conductivity and specific heat capacity, high thermal shock resistance, low weight and excellent corrosion resistance. However, their use in cement-based composites for high-temperature applications has been very limited. In this paper, the effect of randomly dispersed alumina-silicate fibres on the high-temperature resistance of cement composites is analysed as a function of the mix composition. The measurement of the basic physical, mechanical, hygric and thermal properties shows the most favourable results for the composites containing calcium aluminate cement and basalt aggregates, the fibre dosage of 1 % being an optimal solution. A comparison with the results reported by other researchers shows that in the temperature range up to 1000 °C, aluminium silicate fibres perform better than steel, glass and carbon fibres for both Portland cement and calcium aluminate cement matrices, and their effect is similar to that of basalt fibres.
期刊介绍：
Cement & concrete composites focuses on advancements in cement-concrete composite technology and the production, use, and performance of cement-based construction materials. It covers a wide range of materials, including fiber-reinforced composites, polymer composites, ferrocement, and those incorporating special aggregates or waste materials. Major themes include microstructure, material properties, testing, durability, mechanics, modeling, design, fabrication, and practical applications. The journal welcomes papers on structural behavior, field studies, repair and maintenance, serviceability, and sustainability. It aims to enhance understanding, provide a platform for unconventional materials, promote low-cost energy-saving materials, and bridge the gap between materials science, engineering, and construction. Special issues on emerging topics are also published to encourage collaboration between materials scientists, engineers, designers, and fabricators.
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