There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

The American Society for Testing and Materials (ASTM) is an independent organization devoted to the development of standards.

American Society for Testing and Materials

The current utilization rate of steel slag is only 22% in china, far behind the developed countries. At present, the amount of slag deposited in storage yard adds up to 30Mt, leading to the occupation of farm land and serious pollution to the environment. Improving the slag utilization is an important way to resolve these problems. The physical and chemical characteristics of steel slag were analyzed and then the research progress of steel slag utilization at home and abroad as recycled raw material in steel enterprise interior, aggregate of road and hydraulic construction, cement additive and concrete admixture, materials for waste water or gas treatment, construction materials and fertilizer in agriculture production were introduced respectively. At last, the important routes and critical problems for large-scale utilization of steel slag were proposed.

https://cyberleninka.org/article/n/946548.pdf

An Overview of Utilization of Steel Slag

Evaluation of steel slag coarse aggregate in hot mix asphalt concrete.

https://arpi.unipi.it/bitstream/11568/798598/2/polacco%20798598.pdf

Perviz Ahmedzade

Papers

Evaluation of steel slag coarse aggregate in hot mix asphalt concrete.

The investigation and comparison effects of SBS and SBS with new reactive terpolymer on the rheological properties of bitumen

Laboratory investigation of the properties of asphalt concrete mixtures modified with TOP–SBS

Performance evaluation of bitumen modified by various types of waste plastics

Rheological properties of asphalt binders modified with recycled materials: A comparison with Styrene-Butadiene-Styrene (SBS)