{"title":"利用混凝土细粉和再生骨料开发土工聚合物混凝土","authors":"Paramveer Singh, K. Kapoor","doi":"10.1680/jmacr.23.00360","DOIUrl":null,"url":null,"abstract":"The paper investigates the efficacy of Fine Recycled Concrete Powder (FRCP) and Recycled Aggregates (RA) as partial replacements of Fly Ash (FA) and Natural Aggregates (NA) respectively to develop sustainable Geopolymer Concrete (GC). The strength of GC was measured in terms of Compression Strength. To evaluate durability performance, such as Capillary Suction Test (CST), Initial Surface of Absorption (ISA) test and Acid Attack were performed at ambient curing. The compression strength of GC made with 50% RA (both coarse and fine) along with FRCP is comparable to that of GC made with NA. Similarly, the inclusion of FRCP in GC mixes results in a pore-blocking effect to restrict the water ingress in GC through Capillary Suction and Surface Absorption even with 50% Coarse and 25% Fine RA. The study has demonstrated that sustainable GC can be developed using appropriate doses of FRCP and RA.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":"209 3","pages":""},"PeriodicalIF":16.4000,"publicationDate":"2024-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Developing geopolymer concrete using fine recycled concrete powder and recycled aggregates\",\"authors\":\"Paramveer Singh, K. Kapoor\",\"doi\":\"10.1680/jmacr.23.00360\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The paper investigates the efficacy of Fine Recycled Concrete Powder (FRCP) and Recycled Aggregates (RA) as partial replacements of Fly Ash (FA) and Natural Aggregates (NA) respectively to develop sustainable Geopolymer Concrete (GC). The strength of GC was measured in terms of Compression Strength. To evaluate durability performance, such as Capillary Suction Test (CST), Initial Surface of Absorption (ISA) test and Acid Attack were performed at ambient curing. The compression strength of GC made with 50% RA (both coarse and fine) along with FRCP is comparable to that of GC made with NA. Similarly, the inclusion of FRCP in GC mixes results in a pore-blocking effect to restrict the water ingress in GC through Capillary Suction and Surface Absorption even with 50% Coarse and 25% Fine RA. The study has demonstrated that sustainable GC can be developed using appropriate doses of FRCP and RA.\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":\"209 3\",\"pages\":\"\"},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-04-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1680/jmacr.23.00360\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jmacr.23.00360","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
本文研究了细再生混凝土粉(FRCP)和再生骨料(RA)分别作为粉煤灰(FA)和天然骨料(NA)的部分替代品对开发可持续土工聚合物混凝土(GC)的功效。土工聚合物混凝土的强度以压缩强度来衡量。为了评估耐久性能,在常温固化条件下进行了毛细管吸力试验(CST)、初始表面吸力试验(ISA)和酸侵蚀试验。使用 50% RA(包括粗粒和细粒)和 FRCP 制成的 GC 的压缩强度与使用 NA 制成的 GC 相当。同样,在 GC 混合料中加入 FRCP 会产生孔隙阻塞效应,通过毛细管吸力和表面吸力限制 GC 中的水分渗入,即使粗 RA 含量为 50%,细 RA 含量为 25%。该研究表明,使用适当剂量的 FRCP 和 RA 可以开发出可持续的 GC。
Developing geopolymer concrete using fine recycled concrete powder and recycled aggregates
The paper investigates the efficacy of Fine Recycled Concrete Powder (FRCP) and Recycled Aggregates (RA) as partial replacements of Fly Ash (FA) and Natural Aggregates (NA) respectively to develop sustainable Geopolymer Concrete (GC). The strength of GC was measured in terms of Compression Strength. To evaluate durability performance, such as Capillary Suction Test (CST), Initial Surface of Absorption (ISA) test and Acid Attack were performed at ambient curing. The compression strength of GC made with 50% RA (both coarse and fine) along with FRCP is comparable to that of GC made with NA. Similarly, the inclusion of FRCP in GC mixes results in a pore-blocking effect to restrict the water ingress in GC through Capillary Suction and Surface Absorption even with 50% Coarse and 25% Fine RA. The study has demonstrated that sustainable GC can be developed using appropriate doses of FRCP and RA.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.