前言灌注水下混凝土,常用的方法为竖管灌注。在灌注过程中,必须避免混凝土“洗澡”。新灌注的混凝土一旦受到水洗,水泥浆就会被水洗掉,使砂石骨料露馅,从而造成混凝土的重大质量事故。现在要介绍的水下不分散混凝土,就具有不怕水洗的特性。 Foreword Infusion underwater concrete, the commonly used method for the riser perfusion. During the pouring process, concrete “bathing” must be avoided. Once the newly poured concrete is washed with water, the cement slurry will be washed away and the gravel aggregate will be exposed to the ground, causing significant mass concrete accidents. Now you want to introduce the underwater non-dispersive concrete, it is not afraid of washing characteristics.