{"title":"热带泥炭的物理岩土特性及其稳定性","authors":"P. Kolay, S. Taib","doi":"10.5772/INTECHOPEN.74173","DOIUrl":null,"url":null,"abstract":"The chapter presents the physical and engineering properties of tropical peat treated with various types of stabilizers. Quick lime (QL), fly ash (FA), and ordinary Portland cement (OPC) were used as stabilizers. The amounts of QL, FA, and OPC added with the peat samples are in the range of 2 – 8, 5 – 20, and 5 – 20%, respectively. Various physical or index and engineering tests have been conducted to characterize the peat samples. Unconfined compressive strength (UCS) tests were conducted on original and treated peat samples cured for 7, 14, and 28 days. The results show that the UCS value increases with the increase of all stabilizers used and with curing period. The UCS tests were also conducted on the peat samples with the combination of QL and FA to study the combined effects of the stabilizers. The present study established different correlations between physical and engineering properties of original peat and UCS results on treated peat samples with different types of stabilizers. Geotechnical engineers can refer to these correlations to determine the bearing capacity of treated peat. In addition, scanning electron microscope (SEM) studies were conducted on original and treated peat samples to investigate the microstructure of the samples.","PeriodicalId":48721,"journal":{"name":"Mires and Peat","volume":"80 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"Physical and Geotechnical Properties of Tropical Peat and Its Stabilization\",\"authors\":\"P. Kolay, S. Taib\",\"doi\":\"10.5772/INTECHOPEN.74173\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The chapter presents the physical and engineering properties of tropical peat treated with various types of stabilizers. Quick lime (QL), fly ash (FA), and ordinary Portland cement (OPC) were used as stabilizers. The amounts of QL, FA, and OPC added with the peat samples are in the range of 2 – 8, 5 – 20, and 5 – 20%, respectively. Various physical or index and engineering tests have been conducted to characterize the peat samples. Unconfined compressive strength (UCS) tests were conducted on original and treated peat samples cured for 7, 14, and 28 days. The results show that the UCS value increases with the increase of all stabilizers used and with curing period. The UCS tests were also conducted on the peat samples with the combination of QL and FA to study the combined effects of the stabilizers. The present study established different correlations between physical and engineering properties of original peat and UCS results on treated peat samples with different types of stabilizers. Geotechnical engineers can refer to these correlations to determine the bearing capacity of treated peat. In addition, scanning electron microscope (SEM) studies were conducted on original and treated peat samples to investigate the microstructure of the samples.\",\"PeriodicalId\":48721,\"journal\":{\"name\":\"Mires and Peat\",\"volume\":\"80 1\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2018-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Mires and Peat\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.5772/INTECHOPEN.74173\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mires and Peat","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.5772/INTECHOPEN.74173","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Physical and Geotechnical Properties of Tropical Peat and Its Stabilization
The chapter presents the physical and engineering properties of tropical peat treated with various types of stabilizers. Quick lime (QL), fly ash (FA), and ordinary Portland cement (OPC) were used as stabilizers. The amounts of QL, FA, and OPC added with the peat samples are in the range of 2 – 8, 5 – 20, and 5 – 20%, respectively. Various physical or index and engineering tests have been conducted to characterize the peat samples. Unconfined compressive strength (UCS) tests were conducted on original and treated peat samples cured for 7, 14, and 28 days. The results show that the UCS value increases with the increase of all stabilizers used and with curing period. The UCS tests were also conducted on the peat samples with the combination of QL and FA to study the combined effects of the stabilizers. The present study established different correlations between physical and engineering properties of original peat and UCS results on treated peat samples with different types of stabilizers. Geotechnical engineers can refer to these correlations to determine the bearing capacity of treated peat. In addition, scanning electron microscope (SEM) studies were conducted on original and treated peat samples to investigate the microstructure of the samples.
期刊介绍：
Mires and Peat is a peer-reviewed internet journal focusing specifically on mires, peatlands and peat. As a truly “free-to-users” publication (i.e. NO CHARGES to authors OR readers), it is immediately accessible to readers and potential authors worldwide. It is published jointly by the International Peatland Society (IPS) and the International Mire Conservation Group (IMCG).
Mires and Peat is indexed by Thomson Reuters Web of Science (2017 Impact Factors: 1.326 [two-year] and 1.638 [five-year]), Elsevier Scopus, EBSCO Environment Complete, CABI Abstracts, CSA Proquest (including their Aquatic Science and Fisheries Abstracts ASFA, Ecology, Entomology, Animal Behavior, Aqualine and Pollution databases) and Directory of Open Access Journals (DOAJ). Mires and Peat also participates in the CABI Full Text Repository, and subscribes to the Portico E-journal Preservation Service (LTPA).
Mires and Peat publishes high-quality research papers on all aspects of peatland science, technology and wise use, including:
ecology, hydrology, survey, inventory, classification, functions and values of mires and peatlands;
scientific, economic and human aspects of the management of peatlands for agriculture, forestry, nature conservation, environmental protection, peat extraction, industrial development and other purposes;
biological, physical and chemical characteristics of peat; and
climate change and peatlands.
Short communications and review articles on these and related topics will also be considered; and suggestions for special issues of the Journal based on the proceedings of conferences, seminars, symposia and workshops will be welcomed. The submission of material by authors and from countries whose work would otherwise be inaccessible to the international community is particularly encouraged.
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