Introduction

• Air content in fresh concrete is commonly measured in the field using the pressure method.
• The pressure method is practical for field-testing most concretes.
• Original volume of Air in the sample is determined by the principle of Boyle’s Law.
• This Meter(DY-300) quickly determine percentage of entrained air in freshly mixed concrete.
• And has a multi-range feature to accurately measure entrained air up to 9.9% by Digital Measuring System.