Objective:  

This method aims to determine the pullout strength of hardened concrete.

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Procedure:  

The strength is assessed by measuring the force necessary to extract a metal insert along with the concrete fragment it's embedded in from a concrete sample or structure

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Application:  

The insert can either be placed during the pouring of fresh concrete or installed into already hardened concrete.

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Limitations:  

This method specifically focuses on pullout strength and does not include statistical procedures for estimating other strength properties.