Comparative flexural performance of compacted cement-fiber-sand

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Jamsawang P., Suansomjeen T., Sukontasukkul P., Jongpradist P., Bergado D.T.

ผู้เผยแพร่: Elsevier

ปีที่เผยแพร่ (ค.ศ.): 2018

วารสาร: Geotextiles and Geomembranes (0266-1144)

Volume number: 46

Issue number: 4

หน้าแรก: 414

หน้าสุดท้าย: 425

จำนวนหน้า: 12

นอก: 0266-1144

eISSN: 1879-3584

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044467843&doi=10.1016%2fj.geotexmem.2018.03.008&partnerID=40&md5=3220852e42e912fda046bfad9ea9a6e4

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

This research investigates the influence of seven different fiber types on the flexural performance of compacted cement-fiber-sand (CCFS) with four fiber fractions (0.5, 1, 1.5 and 2% by volume). The seven types of fibers are 12 mm polypropylene, 19 mm polypropylene, 40 mm polypropylene, 55 mm polypropylene, 33 mm steel, 50 mm steel and 58 mm polyolefin fibers. The overall CCFS performance was divided into seven sub design performance indicators: (1) peak strength; (2) peak strength ratio; (3) residual strength ratio; (4) ductility index; (5) toughness; (6) equivalent flexural strength ratio; and (7) maximum crack width. The interaction mechanism of the fiber/cement-sand interface was investigated by scanning electron microscopy. Finally, the effectiveness of each fiber type was compared and rated in terms of the overall performance. The results show that the 50 mm steel fiber provided the best overall sub performance, resulting in an excellent overall flexural performance; in comparison, the 12 mm polypropylene fiber exhibited very poor performance. However, the 19 mm polypropylene and 33 mm steel fiber specimens provided very good and good overall performances, respectively. The nature of the fiber surface and the fiber length affects the overall performance of CCFS. The surface of the steel fibers, compared to the other synthetic fiber types, is more hydrophilic and is more compacted in a cemented-sand matrix without separation of the interfacial zone, providing the best overall flexural performance. ฉ 2018 Elsevier Ltd

คำสำคัญ

Fiber-reinforced soil, Flexural performance, Pavement materials