Utilization of rice husk-bark ash to improve the corrosion resistance of concrete under 5-year exposure in a marine environment

บทความในวารสาร


ผู้เขียน/บรรณาธิการ


กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง


รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่งChalee W., Sasakul T., Suwanmaneechot P., Jaturapitakkul C.

ผู้เผยแพร่Elsevier

ปีที่เผยแพร่ (ค.ศ.)2013

วารสารCement and Concrete Composites (0958-9465)

Volume number37

Issue number1

หน้าแรก47

หน้าสุดท้าย53

จำนวนหน้า7

นอก0958-9465

eISSN1873-393X

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84874652247&doi=10.1016%2fj.cemconcomp.2012.12.007&partnerID=40&md5=5aaac3ad96318baba55c0b388b6229d3

ภาษาEnglish-Great Britain (EN-GB)


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บทคัดย่อ

Waste rice husk-bark ash was utilized to improve the durability of concrete in a marine environment. The effects of ground rice husk-bark ash (GRBA) on compressive strength, chloride diffusion coefficient, chloride binding capacity, and steel corrosion of concrete exposed to a marine site for 5 years were reported and discussed. The GRBA was used as a pozzolanic material to replace Type I Portland cement at 0%, 15%, 25%, 35%, and 50% by weight of the binder. Concrete cube specimens of 200 mm were cast, and steel bars were embedded in concrete. Concrete specimens were exposed to a tidal zone of seawater in the Gulf of Thailand. After 5-year exposure, the specimens were tested for compressive strength, acid soluble and water soluble chlorides and corrosion of embedded steel bar. The results showed that during 5-year exposure, GRBA concretes gained strength faster than Type I Portland cement concretes and no strength loss was found in GRBA concrete. The findings also indicated that the durability of concrete in terms of chloride diffusion coefficient, chloride binding capacity, and resistance to corrosion of embedded steel could be considerably improved by utilizing GRBA as high as 35%.ฉ 2012 Elsevier Ltd. All rights reserved.


คำสำคัญ

Chloride binding capacityChloride diffusion coefficientMarine environmentRice husk-bark ashSteel corrosion


อัพเดทล่าสุด 2023-04-10 ถึง 07:36