Superplasticizer
Superplasticizer is a common additive for grouting materials, and its main function is to provide enough fluidity [16,21,53,58,63].Precisely speaking, it is the superplasticizer adsorption that plays a key role in influencing the flowability of grouts. A model has been proposed by Y. Fang et al. [59] to explain its significant effect on decreasing the flow time.
