CIVENG 3J04 Lecture Notes - Ground Granulated Blast-Furnace Slag, Bulk Density, Specific Weight

• School: McMaster University
• Department: Civil Engineering
• Course: CIVENG 3J04
• Professor: Ghani Razaqpur

Document Summary

: 3 % (non-air entrained), 8 % (air entrained) Concrete is a mixture of aggregates + cement + water and air. In order to produce high quality concrete, its ingredients must be carefully chosen and proportioned. Since the aggregates constitute such a large part, we begin our study with the aggregates and their properties, but we will return to concrete and study it in detail in subsequent sections. Aggregates are particles of natural stones, produced either by natural processes such as erosion and weathering or by mechanically crushing rocks. Other types of aggregates are made from slag, which is produced during the making of steel. Although aggregates have a number of applications in construction works, the focus of this course is mainly on their use in concrete mixtures. Aggregates can be classified based on a number of criteria as described below. Aggregates should be sound, well-graded, with maximum achievable density.