一、概述优质的新拌水泥混凝土应具有:满足运输、浇注和振捣要求的流动性;能保持不为外力作用脆断的可塑性;施工时不产生分层、离析、泌水的稳定性和易于振捣致密的密实性,据此可将混凝土工作性归结为流动性、可塑性、稳定性、易密性等四个方面的含义。而新拌混凝土工作性的好坏决定了 First, an overview of the quality of fresh cement concrete should have: to meet the transport, pouring and vibration requirements of mobility; can not be brittle for the external force plasticity; construction does not produce stratification, segregation, bleeding stability and It is easy to vibrate dense compactness, which can be attributed to the concrete workability of mobility, plasticity, stability, density and other four aspects of the meaning. The quality of fresh concrete is determined by the job