A New Pull-Out Technique for In-Place Estimation of Concrete Compressive Strength

Table 2

Stress states considered in the testing campaign.

	Stress field
1	Inhomogeneous; Tensile
2	Inhomogeneous; Compr.
3	Vanishing
4	Homogeneous; Compr. 5 MPa
5	Homogeneous; Compr. 10 MPa