CA-3 concrete air content measuring instrument air content wholesale price

Type (Japanese-style, direct-reading, digital display) concrete air content measuring instrument air content wholesale price
Direct-reading concrete air content measuring instrument applicable scope
This instrument is widely applicable to Construction, highways, railways, water conservancy and hydropower, ports. Determination of air content in concrete at various construction sites such as airport construction, supervision and management of project quality, and scientific research and teaching experiments on concrete materials. Stable and accurate measurement results provide reliable data basis for scientific research and testing, and play an important role in the essential air content control of concrete. Simple operating methods and concise safety facilities bring the greatest convenience to the operator, especially in construction environments with harsh climate conditions, reducing the operator's labor intensity, improving work efficiency, and reliably guaranteeing construction quality
Overview of direct-reading concrete air content tester
This product is suitable for measuring the air content in concrete mixtures with aggregate particle size not greater than 1, air content not greater than 1, and slump, in compliance with the Ministry of Communications All the provisions of the "Testing Procedures for Cement and Cement Concrete in Highway Engineering", the measurement method of this instrument complies with the standards.
Technical parameters of direct-reading concrete air content tester
, volume liter, air content range, maximum particle size of coarse aggregate in millimeters, minimum reading
, maximum design pressure, maximum working pressure, Air tightness test pressure and weight
Working principle of direct-reading concrete air content measuring instrument
The measuring principle of this instrument is based on the gas equation, between an air chamber that maintains a certain pressure and a container filled with sample, When the opening and closing pressures are balanced and the pressures of the two containers reach equilibrium, the amount of reduction in the air chamber pressure is the percentage of the air content in the mortar, and what is shown on the pressure gauge is the air content in the sample.
The direct-reading mortar air content meter is an instrument used to measure the air content in the mortar according to the "Interim Technical Conditions for Cement Emulsified Asphalt Mortar of Type II Slab Ballastless Track of Passenger Dedicated Line Railway".
Operating instructions for direct-reading concrete air content tester
Use a damp cloth to wipe the inner surface of the measuring bowl and cover, then load the concrete sample and smooth it with a vibrator or tamper until the There should be no bubbles
. After smoothing, weigh the total mass of the container and the concrete sample.
. Paste a small piece of tissue paper or plastic film on the concrete surface facing the operating valve hole, clean the flange, cover the measuring bowl cover, tighten the clamp, and open the exhaust valve.
, close the operating valve, compress the air from the air inlet valve, so that the pressure pointer is /.
, close the operating valve, open the water inlet valve, add a small amount of water, close the water inlet valve and the exhaust valve to make them sealed and airtight.
Open the operating valve and allow the compressed solvent in the air chamber to enter the measuring bowl. After the pressure gauge pointer stabilizes, read the value.