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The ASTM138 deals with the Test Methods for Density, Yield and Air Content of Concrete The equipment required is 1. Balance2. Tamping Rod3. Internal Vibrator4. Measure - A cylindrical container made of steel or other suitable material5. Strike off Plate 6. Mallet
I agree with Mr. Mohamed on the Testing Methods of Density, Yield and Air Content of the Concrete and the6 equipment required.
I agreed with Mr. Mohamed Galal