Journal
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
Volume 20, Issue 1, Pages 94-105Publisher
SPRINGER
DOI: 10.1007/s12613-013-0699-2
Keywords
concrete; curing; sensitivity analysis; fly ash; limestone powder; bottom ash
Categories
Funding
- Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission
- National Metal and Materials Technology Center, National Science and Technology Development Agency, Ministry of Science and Technology, Thailand
Ask authors/readers for more resources
The curing sensitivity of concrete with cement Types 1, 3, and 5 as well as multiple powders consisting of cement, fly ash, and limestone powder was studied. Bottom ash was also used in the study as an internal curing agent and a partial substitution of fine aggregate. The curing sensitivity index was calculated by considering the performances of compressive strength and carbonation depth. Specimens were subjected to two curing conditions: continuously water-cured and continuously air-cured. The results show that cement Type 3 has a lower curing sensitivity, while cement Type 5 increases the curing sensitivity. For the mixes without bottom ash, the use of fly ash increases the curing sensitivity, while limestone powder reduces the curing sensitivity of concrete. The use of bottom ash in concrete reduces the curing sensitivity, especially at a lower mass ratio of water to binder. Concrete with limestone powder, together with bottom ash, is least sensitive to curing. The curing sensitivity calculated from carbonation depth also has a similar tendency as that derived by considering compressive strength. From the test results of compressive strength and curing sensitivity, bottom ash has been proven to be an effective internal curing agent.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available