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Effect of cement, limestone and hydrated lime on setting time and compressive strength of local gypsum
Other Title(s)
تأثير السمنت, الحجر الجيري والنورة المطفأة على زمن التماسك ومقاومة الانضغاط للجص المحلي
Author
Source
Journal of Engineering and Sustainable Development
Issue
Vol. 23, Issue 2 (31 Mar. 2019), pp.120-132, 13 p.
Publisher
al-Mustansyriah University College of Engineering
Publication Date
2019-03-31
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Social Sciences (Multidisciplinary)
Topics
Abstract EN
This paper consists of studying the effect of adding different ratios of cement, limestone powder and hydrated lime on setting time and compressive strength of gypsum which available in local market which does not conform to Iraqi Standard Specification (I.
Q.
S) No.28/1988.
The adding materials are low-cost and available in local market and can be used to improve setting time and compressive strength for gypsum which are considered as the most important properties if it used as mortar or in finishing.
The adding ratios of cement were (10, 20, 30, 40 and 50) % from gypsum weight, the ratio of (50% ) was the best ratio as regarded to setting time and compressive strength.
They are (10.33 minutes), (8.04 N/mm2) respectively.
For the limestone powder addition, the ratios were (10, 20, 30, 40, 50 and 60) % from gypsum weight.
The results showed that, the ratio of (10% ) was the best in compressive strength (6.2 N/mm2) and ratio of (60% ) was the best in setting time.
At adding hydrated lime, the ratio of addition (2.5% ) gave compressive strength (7.51 N/mm2) and the ratio of (12.5% ) gave setting time (14.15 min.
).
This paper consists of studying the effect of adding different ratios of cement, limestone powder and hydrated lime on setting time and compressive strength of gypsum which available in local market which does not conform to Iraqi Standard Specification (I.
Q.
S) No.28/1988.
The adding materials are low-cost and available in local market and can be used to improve setting time and compressive strength for gypsum which are considered as the most important properties if it used as mortar or in finishing.
The adding ratios of cement were (10, 20, 30, 40 and 50) % from gypsum weight, the ratio of (50% ) was the best ratio as regarded to setting time and compressive strength.
They are (10.33 minutes), (8.04 N/mm2) respectively.
For the limestone powder addition, the ratios were (10, 20, 30, 40, 50 and 60) % from gypsum weight.
The results showed that, the ratio of (10% ) was the best in compressive strength (6.2 N/mm2) and ratio of (60% ) was the best in setting time.
At adding hydrated lime, the ratio of addition (2.5% ) gave compressive strength (7.51 N/mm2) and the ratio of (12.5% ) gave setting time (14.15 min.
).
American Psychological Association (APA)
Abd al-Husayn, Sana Taha. 2019. Effect of cement, limestone and hydrated lime on setting time and compressive strength of local gypsum. Journal of Engineering and Sustainable Development،Vol. 23, no. 2, pp.120-132.
https://search.emarefa.net/detail/BIM-1113584
Modern Language Association (MLA)
Abd al-Husayn, Sana Taha. Effect of cement, limestone and hydrated lime on setting time and compressive strength of local gypsum. Journal of Engineering and Sustainable Development Vol. 23, no. 2 (Mar. 2019), pp.120-132.
https://search.emarefa.net/detail/BIM-1113584
American Medical Association (AMA)
Abd al-Husayn, Sana Taha. Effect of cement, limestone and hydrated lime on setting time and compressive strength of local gypsum. Journal of Engineering and Sustainable Development. 2019. Vol. 23, no. 2, pp.120-132.
https://search.emarefa.net/detail/BIM-1113584
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1113584