Figure 4
The map illustrates the global distribution of research articles related to cement manufacturing, categorized by the number of publications in each country. China has the highest number of publications with 29, followed by Germany with 21, Poland with 19, and Brazil with 12. Europe is a central hub for research, with significant contributions from countries such as England, Spain, Italy, Austria, and Turkey. Other notable contributors include the United States, Canada, India, Indonesia, and Thailand. The map uses a color gradient to indicate the frequency of publications, with darker shades representing higher numbers. The research output from Africa and parts of the Middle East is minimal, highlighting a disparity in global research efforts.Distribution of research articles by country of research. Source: Authors' own work]