Year: 2025
Type: article
Abstract: The objective of this study is to examine the physiochemical changes that occur in high‐volume slag cement when additives with varying levels of alkalinity are introduced. The high‐volume slag cement blends were made by substituting 70% Portland cement with slag. For the additives, three different alkaline materials, namely volcanic ash, red mud, and cement kiln dust, were considered. The additives were added at 0%, 5%, 10%, and 15% by mass of high‐volume slag cement. The characteristics of high‐volume slag cement blends were examined by compressive strength, isothermal calorimetry, x‐ray diffraction, thermogravimetric analysis, Fourier transform infrared spectroscopy, and porosity measurement. The results indicated that the alkaline additives have a beneficial effect on the early‐age strength development. However, the long‐term strength is compromised due to the alkalinity of the paste blends.
Source: Structural Concrete
DOI: 10.1002/suco.70203
Authors: Salman Siddique, Ahmed Mahmood Khan, Saheed Kolawole Adekunle, Mohammed A. Al‐Osta, Asad Hanif
Institution: King Fahd University of Petroleum and Minerals
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4411769167