Use of palm oil fuel ash as a supplementary cementitious material for producing high-strength concrete

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Tangchirapat W., Jaturapitakkul C., Chindaprasirt P.

ผู้เผยแพร่: Elsevier

ปีที่เผยแพร่ (ค.ศ.): 2009

วารสาร: Construction and Building Materials (0950-0618)

Volume number: 23

Issue number: 7

หน้าแรก: 2641

หน้าสุดท้าย: 2646

จำนวนหน้า: 6

นอก: 0950-0618

eISSN: 1879-0526

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-67349239681&doi=10.1016%2fj.conbuildmat.2009.01.008&partnerID=40&md5=b67e479342376da8692e877b130a99ef

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

The objective of this study is to investigate the use of ground palm oil fuel ash with high fineness (GPA) as a pozzolanic material to produce high-strength concrete. Samples were made by replacing Type I Portland cement with various proportions of GPA. Properties such as the compressive strength, drying shrinkage, water permeability, and sulfate resistance, were then investigated. After aging for 28 days, the compressive strengths of these concrete samples were found to be in the range of 59.5-64.3 MPa. At 90-day the compressive strength of concrete containing GPA 20% was as high as 70 MPa. The drying shrinkage and water permeability were lower than those of high-strength concrete made from Type I Portland cement. When the concrete samples were immersed in a 10% MgSO4 solution for 180 days, the sulfate resistance in terms of the expansion and loss of compressive strength was improved. The results indicated that GPA is a reactive pozzolanic material and can be used as a supplementary cementitious material for producing high-strength concrete. ฉ 2009 Elsevier Ltd. All rights reserved.

คำสำคัญ

Drying shrinkage, Sulfate resistance