Method and system for ensuring the quality of a multi-component mixture for rock reinforcement

A system for ensuring the quality of a multi-component mixture comprising at least two components for use in rock reinforcement, wherein the system comprises a first and a second channel for a respective first and second component to inject in a rock hole, wherein the respective channel comprises a pump and a container intended for the respective component, wherein said pumps pump the respective component from the respective container, into a rock hole, through the respective channel wherein the system further comprises a flow meter arranged in the respective first and second channel, a control unit configured to continuously compare the flow of said first component in said first channel to the flow of said second component in said second channel, wherein the control unit is further configured to maintain a pre-defined volume ratio between the first component and the second component by controlling the pumps individually, based on the comparison of the flows and in such a way that a deviation from the pre-defined volume ratio is below a pre-determined first threshold.