Apex Lab Equipment Company | Helping you reach your peak ...
Apex is the leading provider of lab equipment in the Midwest. Combined we bring you 100 years of experience, knowledge and service in the lab equipment industry. At Apex, we understand that service begins with an understanding of your facilities unique needs, and ends with your unconditional satisfaction.
ASTM C231: Testing Air Content of Concrete With a Type B ...
This tests purpose is to get the air content of a sample of concrete using a pressure meter. In the meter you have a known volume of air at a known pressure in a sealed air pot with an unknown volume of air being contained inside the sample of wet concrete. You set it to the percentage of air (your initial pressure) where the pressure is equalized inside the chamber, fill it with concrete and water so that the only air left is the air inside the concrete, and then release the pressure inside of
Welcome to Apex Instruments! Dear valued customer, Over the last 25 years, it’s been our mission to bring high-quality equipment to the source testing industry at competitive prices. This commitment has driven us to continually improve our products and develop solutions for our customers to compete in an ever-changing regulatory landscape.
Humboldt offers a complete line of non-destructive test equipment for concrete testing in the field and lab. Our NDT products conform to ASTM C805, ACI 318, ASTM C876, ASTM C597, AASHTO T358. Schmidt Hammers ASTM C805
APEX is a one - stop supplier of coal testing equipment, chemical instruments, civil engineering lab equipments, soil and petroleum testing equipments, NDT equipments, food lab equipment, pathology lab equipments and other testing equipments. Our professional engineer team provides complete solution and training service for laboratory.
Concrete Testing Equipment | Myers Construction Testing Equipment
We have concrete air meters and roller meters for testing air content. Myers also supplies cylinder molds and compression machines for testing strength. In addition, there is a variety of non-destructive strength testing equipment, including the Windsor Probe, rebar locators, crack monitors.
Concrete air meters and indicators for air entrainment are used for determination of air content, specific gravity and free moisture test of aggregates. Concrete air meters and indicators are ASTM 231 compliant and are part of a complete line of concrete testing equipment available from Humboldt.
Concrete Air Meters | Air Testing Equipment - Gilson Co.
Concrete Air Meters measure the air content of fresh concrete in accordance with ASTM and AASHTO standards test methods. Gilson offers a selection of air meters for use in testing fresh concrete specimens or concrete mixes, lightweight aggregate concrete, or other lightweight mixes.
For Business: Do you have questions about how Apex can help your company get more done in less time? Send us an email and we’ll get in touch shortly, or phone (415) 550-9800. Send us an email and we’ll get in touch shortly, or phone (415) 550-9800.
Comparison of Fresh Concrete Air Content Test Methods ...
finding the root cause of the air content discrepancy observed in concrete made using synthetic AEAs. A laboratory program at multiple scales including concrete air void analysis, the foam drainage test, and fundamental tests for micro-properties of individual bubble shells was conducted. The results showed that the air bubbles in concrete
Volume 19/Number 1 Control of Air Content in Concrete April 1998
Control of Air Content in Concrete Air-Void Analyzer Figure 1. Freeze-thaw deterioration of non-air-entrained concrete railing. (S44517) Control of Air Content in Concrete New manual provides concrete producers and users with tips on achieving and controlling air in concrete. Air entrainment is a necessary com-ponent of concrete mixtures exposed
A LABORATORY AND ON-SITE TEST METHOD FOR AIR PERMEABILITY OF ...
aluminium plate. The concrete surface may be pre-dried with hot air, ensuring, however, that the temperatures remain below 120 °C. Higher temperatures could already lead to micro damage in the concrete. Fig. 1: Laboratory test setup (Disk test), the Fig.2: On-site test setup (Packer test)
Permeability of Concrete | Tests on concrete by RCPT, Salt ...
Aug 20, 2018 · This test is made possible by an equipment which is known as Rapid Chloride Permeability test equipment, The test equipment consists of two reservoirs. One of them has 3.0% of NaCl solution and another reservoir has 0.3M NaOH Solution, Concrete having thickness 50mm and dia 90-100mm is used as a test specimen.