目前,我国现行的混凝土配合比设计,通常采用的有绝对体积法(简称体积法)和假定密度法(简称密度法)两种方法。砂石混合密度法是以绝对体积法为基础而开发的计算混凝土配合比的新方法,文章对其计算原理、特点及适用性作了具体介绍,本方法计算简单且计算值精确的配合比。对无特殊要求的普通混凝土配合比设计,可用此方法取代绝对体积法。 At present, China's current concrete mix design, commonly used are the absolute volume method (referred to as the volume method) and the assumed density method (referred to as density method) two methods. Gravel density method is a new method to calculate concrete mix ratio based on absolute volume method. The article introduces the calculation principle, characteristics and applicability. The method is simple and the calculated value is accurate. For no special requirements of ordinary concrete mix design, this method can be used to replace the absolute volume method.