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用来自煤炭的闪光石墨烯取代混凝土聚合物

Paul A Advincula1, Wei Meng2, Lucas J Eddy1,3,4

  • 1Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005-1892, United States.

ACS applied materials & interfaces
|December 29, 2023
PubMed
概括

研究人员从煤炭衍生的金焦炭中开发了闪光石墨烯聚合物 (FGA),以取代混凝土中的天然沙子. 这项创新创造了更轻,更坚固的混凝土,解决了全球沙子短缺问题,并支持可持续的城市发展.

关键词:
总体替换的总体替换混凝土混凝土混凝土是什么建筑材料 建筑材料闪光 焦勒加热 焦勒加热闪光灯 石墨烯 石墨烯

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Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
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Pozzolans are siliceous or aluminous materials blended with Portland cement. They interact with the calcium hydroxide produced during the hydration of Portland cement and contribute to improved strength and durability of concrete. The pozzolanic activity, a measure of a pozzolan's effectiveness, is typically assessed using the strength activity index, as defined in ASTM C 618-93, which calculates the ratio of the compressive strength of cement mixtures with and without pozzolan.
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