【摘要】 本文通过试验研究提出，以低品质原状粉煤灰作混凝土掺合料时，其强度特征及影响抗冻性的因素，为推广应用该项技术提供了理论依据。更多还原

【Abstract】 The study reveals some factors acting on strength and frost-resistance of concretes using poor quality raw fly ash as an addition,and may serve as a theoretical basis for spreading use of the technique.更多还原