迄今为止，有关负温高强泵送混凝土的预养成熟度问题一直被冬期施工界所关注，但负温高强泵送混凝土的抗冻临界成熟度及抗冻临界强度的研究却未见报道。因此，本实验结合负温高强泵送混凝土的冬施特点，从混凝土预养成熟度的角度，对这一问题进行了初步探索。１试验材料的选用 Up till now, the pre-culture maturity of high-strength pumped concrete with negative temperature has been paid attention to by the winter construction industry. However, the research on the criticality of frost-resistant and anti-freeze critical strength of high-strength pumped concrete with negative temperature has not been reported. Therefore, this experiment combines the characteristics of winter application of negative temperature high-strength pump concrete, and from the perspective of pre-concrete maturity of concrete, a preliminary exploration of this issue has been conducted. 1 Selection of test materials