AZA 1146 AIR ENTRAINMENT METER

Description

Air Entrainment Meter is a vital testing instrument used in concrete laboratories and construction quality control sites to determine the air content in freshly mixed concrete. At Azalab, we offer a precision-engineered Air Entrainment Meter that complies with industry standards and ensures reliable and repeatable results for air content measurements.

Entrained air plays a key role in concrete durability, especially in freeze-thaw environments. Too little air can lead to cracking, while too much can reduce strength. The Air Entrainment Meter helps technicians and engineers optimize mix design by accurately determining the percentage of air in the fresh mix.

Azalab’s Air Entrainment Meter operates using the pressure method, as described in ASTM C231. It features a rugged, corrosion-resistant cast aluminum chamber with a sealed lid, pressure gauge, air pump, and petcocks. The pressure is applied to a water-filled chamber that contains the concrete sample, and the corresponding drop in pressure indicates the volume of entrained air.

Designed for both field and laboratory use, this meter is easy to clean, durable, and comes with a high-precision pressure gauge marked specifically for this test. The lid is clamped tightly using sturdy wing nuts or levers to ensure a leak-proof seal during testing. Azalab provides both 6-liter and 8-liter models, accommodating a variety of sample sizes.

Each Air Entrainment Meter comes with a complete calibration kit, including a calibration vessel, syringe, tamping rod, straightedge, rubber mallet, and maintenance tools. Calibration can be performed quickly using water and known volumes to ensure continued accuracy. Some models include a quick-release pressure valve and a shock-resistant gauge, further improving usability in rough environments.

Typical applications include:

• Quality control for ready-mix concrete plants

• On-site inspection for pavement and structural concrete

• Verification of mix design in research labs

• Compliance checks with building codes and civil projects

In regions with freeze-thaw cycles, entrained air protects concrete by creating microscopic air bubbles that relieve internal pressure. Proper air content also improves workability and reduces bleeding. Using an Air Entrainment Meter ensures that concrete batches meet the required air content range (typically 4% to 8%), depending on environmental and structural demands.

All Azalab meters are manufactured under strict ISO-certified processes and thoroughly tested for pressure leakage, calibration, and mechanical durability. This ensures that you receive a reliable, long-lasting tool that performs well in challenging conditions.

To learn more about air entrainment and its role in concrete durability, you can refer to the ASTM C231 Standard Guide for detailed procedures and specifications.

Investing in an Azalab Air Entrainment Meter ensures consistent quality, field efficiency, and long-term performance in concrete mixes. It’s an indispensable device for civil engineers, contractors, material testing labs, and educational institutions involved in concrete technology.

 Specifications:

 FREQUENTLY ASKED QUESTIONS (FAQ):

Q1: What is the purpose of an Air Entrainment Meter?
A1: It measures the air content in fresh concrete to ensure proper freeze-thaw durability and strength.

Q2: Which testing standard does this meter comply with?
A2: It complies with ASTM C231 (Pressure Method) and AASHTO T152.

Q3: Is this meter suitable for field use?
A3: Yes, its rugged design makes it ideal for both field and laboratory applications.

Q4: What is the typical air content range for concrete?
A4: Typically between 4% and 8%, depending on project specifications.

Q5: How is calibration performed?
A5: Calibration is done using the supplied vessel and water volume to simulate known air content.