Concrete Laboratory

Concrete Laboratory

1. Setting Time of Hydraulic Cement Using Vicat Needle
• Scope: This test determines the setting time of hydraulic cement using the Vicat needle.
2. Sieve Analysis of Fine and Coarse Aggregates
• Scope: This test explains how to determine the particle size distribution of fine and coarse aggregates using a sieve.
3. Abrasion Resistance of Coarse Aggregates Using Los Angeles Machine
• Scope:Using the Los Angeles machine, this test determines the abrasion resistance of coarse aggregates smaller than 37.5 mm.
4. Density and Water Absorption of Fine Aggregates
• Scope: This test determines fine aggregates' bulk apparent density and water absorption. The densities are calculated for aggregates soaked in water for 24 hours and based on the saturated surface-dry weight of the particles.
5. Slump Test for Fresh Concrete
• Objective and Scope: This standard specifies the method for measuring the slump of fresh concrete in both laboratory and site conditions. It applies to cohesive,plastic concretes with up to 40 mm aggregate sizes.
6. Air Content of Fresh Concrete Using the Pressure Method
• Scope: This test determines the air content of fresh concrete based on its volume change under applied pressure.
7. Compressive Strength of Cylindrical and Cubical Specimens
• Scope: This is the most common test for evaluating concrete quality regarding compressive strength.
8. Schmidt Hammer Test
• Scope: This test is based on the principle that the rebound of a spring-loaded mass depends on the hardness of the surface it strikes.