Effect of limestone filler on the deterioration of mortars and pastes exposed to sulfate solutions at ambient temperature
- Authors
- Lee, Seung Tae; Hooton, Robert Doug; Jung, Ho-Seop; Park, Du-Hee; Choi, Chang Sik
- Issue Date
- Jan-2008
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- sulfate attack; limestone filler; thaumasite; sodium sulfate; magnesium sulfate
- Citation
- CEMENT AND CONCRETE RESEARCH, v.38, no.1, pp.68 - 76
- Indexed
- SCIE
SCOPUS
- Journal Title
- CEMENT AND CONCRETE RESEARCH
- Volume
- 38
- Number
- 1
- Start Page
- 68
- End Page
- 76
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/172172
- DOI
- 10.1016/j.cemconres.2007.08.003
- ISSN
- 0008-8846
- Abstract
- This paper presents data on engineering properties such as compressive strength, visual change and expansion of mortar specimens incorporating limestone filler subjected to severe sulfate attack at ambient temperature. Specimens with four replacement levels of limestone filler (0, 10, 20 and 30% of cement by mass) were immersed in sodium and magnesium sulfate solutions with 33,800 ppm of SO42- concentration. In order to identify the products formed by sulfate attack, microstructural analyses such as XRD and SEM were also performed on the paste samples with similar replacement levels of limestone filler. The test results demonstrated that mortar and paste samples incorporating higher replacement levels of limestone filler were more susceptible to sulfate attack irrespective of types of attacking sources. However, the deterioration modes were significantly dependent on the types of sulfate solutions. Additionally, although the samples were exposed to sulfate solutions at 20 +/- 1 degrees C, the deterioration was strongly associated with thaumasite formation in both sulfate solutions. The deterioration mechanism and resistance to sulfate attack of cement matrix incorporating limestone filler at ambient temperature is discussed in the light of the test results obtained.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 건축공학부 > 1. Journal Articles
- 서울 공과대학 > 서울 건설환경공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/172172)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.