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The ability to control the setting of cement is essential in several applications such as slip forming, oil well cements or in normal concrete if challenging climatic conditions or time constraints are required.This is normally done by using retarders or accelerators but very rarely by the combination of both.In this study we propose to wake up a heavily delayed cement mixture by the use of mineral addition that cancels the effect of the set retarder.Specifically, concrete is put to sleep with a high dosage of superplasticizer and woken up "on demand" by the use of bentonite with a high affinity to bind PCE superplasticizers.Isothermal calorimetry technique has been used to investigate the impact of the different admixtures on the hydration kinetics of cement and adsorption isotherms have been conducted on a bentonite suspension and on cement pastes to study the interaction between the retarding superplasticizer and the bentonite.The combination of set retarding properties of superplasticizers and the physical interaction of the clays such as bentonite with the superplasticizer changes the setting time of a cement paste.This can be used to control the setting time in the range of high (excess) superplastieizer dosages.