Aggregate quality plays a crucial role in determining the strength, durability, and overall performance of concrete structures. The properties of aggregates, such as particle size distribution, shape, surface texture, and mineralogy, significantly influence the mechanical and physical characteristics of concrete. For instance, well-graded aggregates with a continuous particle size distribution, ranging from 75 μm to…
Graded aggregates are aggregates that have been specifically sorted by size into appropriate classifications. The sorting of aggregates by size is known as grading. A well or properly graded aggregate will have a range of particle sizes that allow for strength, workability, and other properties needed for construction applications. Graded aggregates are used extensively in…
Aggregates also provide strength, durability, stability and resistance to various environmental factors. However, not all aggregates are suitable for every purpose. Some aggregates may have defects or impurities that can affect their performance and quality. Therefore, it is important to test aggregates before using them in construction projects. Testing aggregates can help to determine their…
Before getting straight to the topic, let’s have a small discussion regarding aggregates. Did you ever wonder, why aggregates are typically used in construction and engineering projects? Have you asked yourself why is it necessary to use aggregates and what is their importance? What happens if at all aggregates are not available in a particular…
Specific gravity is defined as the ratio of weight of the aggregate to the weight of an equal volume of water at a specified temperature. Procedure Where, A = Weight in gm of the saturated aggregate in water (A1- A2) B = Weight in gm of the saturated surface dry aggregate in air C =…
Procedure (Los Angeles Abrasion test) Specified Abrasive Charge Note The percentage of wear should not be more than 16% for concrete aggregates.