Version 1
: Received: 30 May 2019 / Approved: 31 May 2019 / Online: 31 May 2019 (08:14:34 CEST)
How to cite:
Mishra, D.K.; Yu, J.; Leung, C.K.Y. Hydration and Strength Characteristics of Green Cementitious Mortars with Ultrahigh-Volume Limestone-Calcined Clay and Class F Fly Ash. Preprints2019, 2019050372. https://doi.org/10.20944/preprints201905.0372.v1
Mishra, D.K.; Yu, J.; Leung, C.K.Y. Hydration and Strength Characteristics of Green Cementitious Mortars with Ultrahigh-Volume Limestone-Calcined Clay and Class F Fly Ash. Preprints 2019, 2019050372. https://doi.org/10.20944/preprints201905.0372.v1
Mishra, D.K.; Yu, J.; Leung, C.K.Y. Hydration and Strength Characteristics of Green Cementitious Mortars with Ultrahigh-Volume Limestone-Calcined Clay and Class F Fly Ash. Preprints2019, 2019050372. https://doi.org/10.20944/preprints201905.0372.v1
APA Style
Mishra, D.K., Yu, J., & Leung, C.K.Y. (2019). Hydration and Strength Characteristics of Green Cementitious Mortars with Ultrahigh-Volume Limestone-Calcined Clay and Class F Fly Ash. Preprints. https://doi.org/10.20944/preprints201905.0372.v1
Chicago/Turabian Style
Mishra, D.K., Jing Yu and Christopher K. Y. Leung. 2019 "Hydration and Strength Characteristics of Green Cementitious Mortars with Ultrahigh-Volume Limestone-Calcined Clay and Class F Fly Ash" Preprints. https://doi.org/10.20944/preprints201905.0372.v1
Abstract
This study aims to investigate the hydration and strength characteristics of green cementitious mortars with ultrahigh-volume limestone-calcined clay as well as two kinds of Class F fly ash. Using the ASTM C311 strength activity index test method, the effect of different pozzolan replacement levels of cement (0%, 20%, 50%, and 80%, by weight) were investigated. Compressive strength at 3, 7, 14, 28 and 90 days under standard curing was recorded, and hydration heat of the 20% and 80% replacement mixes was studied using iso-thermal calorimetry. It was observed that the effectiveness of the pozzolan in mortars depends on particle size distribution, glassy or amorphous nature, surface area and replacement level. The sum of all these effects can be captured by the strength activity test only if the standard recommended 20% pozzolan mix is substituted with the actual mix composition. The results in this study provide insights into the mix design and applications of ultrahigh-volume pozzolanic cementitious materials specifically made with limestone-calcined clay, and promote greener cement and concrete in construction industry.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
