How should the thermometer be placed in concrete?

The correct placement of the thermometer in concrete is crucial for obtaining accurate temperature readings. A minimum distance of 3 inches in all directions from the sides of the concrete mass ensures that the thermometer is well immersed in the mix, allowing it to measure the temperature of the concrete itself instead of the surrounding air or surface. This distance helps in minimizing the influence of any temperature variations that might be present from the edges or external environment, which could skew the reading.

Using 3 inches as a standard provides a balance between ensuring a reliable measurement while allowing for practical positioning of the thermometer during placement and curing. Overall, this practice contributes to better understanding the concrete's properties and behavior during the curing process, which is essential for quality control in construction.