A New Penetration Depth Method Using Proctor Compaction Test for Determining the Optimal Starting Time of Hardening...

Area of Science:

• Construction Materials Science
• Civil Engineering

Background:

• Current methods for determining concrete floor floating time are informal and error-prone.
• Existing probe time methods have significant limitations.
• Lack of a scientifically verified method leads to defects in concrete flooring.

Purpose of the Study:

• To develop and validate a precise method for determining the setting time of concrete flooring.
• To establish correlations between concrete strength and the Proctor Compaction Test.
• To provide a reliable technique for the Dry Shake Topping method.

Main Methods:

• Development of a new method based on penetration depth using the Proctor Compaction Test Apparatus.
• Laboratory, pilot, and technical-scale testing for validation.
• Correlation analysis between Proctor Compaction Test results and early concrete strength.

Main Results:

• The optimal floating time is achieved when the Proctor Compaction Test Apparatus penetration depth is 4-7 mm.
• This penetration depth ensures sufficient strength for equipment support and plasticity for bonding.
• Established correlations between Proctor Compaction Test results and early concrete strength.

Conclusions:

• The developed Proctor Compaction Test method provides accurate and immediate results for concrete flooring.
• This method enhances the quality of dry shake topping applications by ensuring correct floating timing.
• The technique is applicable to all concrete mixes used in flooring.