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The purpose of this study is to study the influence of temperature on the chemical shrinkage and hydration characteristics of Portland cement pastes and calcium sulphoaluminate cement pastes with different contents of fly ash.Pastes were prepared using a water to cement (w/c) ratio of 0.4.Chemical shrinkage at various temperatures of 20 ℃, 30 ℃ and 40 ℃ were measured by dilatometry according to ASTM C1608-12 during 72 h, respectively.Furthermore, the heat evolution during 72 h was tested by isothermal calorimetric method.The relationship between chemical shrinkage and heat of hydration was investigated.The results show that the relationship between chemical shrinkage and heat of hydration appears to be roughly linear.It has been found that the degree of hydration of calcium sulphoaluminate cement was largely irrelevant to the content of fly ash during 72 h, but it was not the case for the Portland cement.