What C 1064 test under the Standard ASTM test method?
(a) Test Method for Sampling Freshly Mixed Concrete
(b) Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method
(c) Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
(d) Test Method for Temperature of Freshly Mixed Portland-Cement Concrete
I had been asked this question in a job interview.
My enquiry is from Flaws in Concrete and Remedial Measures, Quality of Concrete in chapter Quality Control of Concrete Technology