Technical Questions

ACI Committees, Membership, and Staff have answered common questions on a variety of concrete related topics.



Measurement of setting time

Q. How is time of setting of concrete measured?

 

A. There are several methods for measuring setting time, among them are the following:

- Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle (ASTM C191)

- Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance (ASTM C403)

- Standard Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore Needles (ASTM C266)

- Standard Test Method for Time of Setting of Grouts for Preplaced-Aggregate Concrete in the Laboratory (ASTM C953)

 

References: SP-1(02); ACI Physical Testing of Cement Training Video; ASTM C403; ASTM C191; ASTM C266; ASTM C953

Topics in Concrete: Cementitious Material; Concrete Fundamentals; Materials

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