ASTM C188

Full Name

ASTM C188 – Standard Test Method for Density of Hydraulic Cement

Scope

ASTM C188 outlines the procedure to determine the density of hydraulic cement, which is defined as the mass per unit volume of the solid material. This property is particularly useful in the design and control of concrete mixtures.

The scope of ASTM C188 includes:

  • Purpose: the main purpose is to measure the density of hydraulic cement to aid in concrete mix design and quality control.
  • Principle: the method is based on liquid displacement. A known mass of cement is added to a liquid of known density (kerosene or naphtha) in a Le Chatelier flask. The volume of liquid displaced by the cement is measured, allowing for the calculation of density.
  • Apparatus: the standard specifies the use of a Le Chatelier flask, which is a specifically designed flask with graduated markings for accurate volume measurement.
  • Procedure: the standard details the step-by-step procedure, including sample preparation, flask filling, cement addition, and volume reading.
  • Calculations: it provides the formula for calculating density based on the measured values.
  • Precision and bias: the standard provides information on the precision and bias of the test method.

It’s important to note that ASTM C188 is specific to hydraulic cement and doesn’t cover other materials like aggregates or admixtures. Also, while the standard mentions using kerosene or naphtha, alternative liquids can be used if they meet certain requirements.

ASTM C188 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C188 standard.

Contact us today to learn more about our testing capabilities and how we can support your business.

Resources

Keywords

density; hydraulic cement; Le Chatelier flask; kerosene; naphtha; liquid displacement; mass; volume