一、补偿收缩混凝土的抗裂原理补偿收缩混凝土是一种适度膨胀的混凝土,其原理是:当混凝土膨胀时,混凝土中的钢筋(或相邻边界)对它的膨胀产生限制作用。钢筋本身也因与混凝土一起膨胀而产生拉应力,同时在混凝土中就产生相应的压应力。这种压应力能够抵消导致混凝土开裂的全部或大 1. Principle of anti-cracking for shrink-shrink concrete The compensated shrinkage concrete is a kind of moderately-expanded concrete. The principle is: When the concrete expands, the reinforcement (or adjacent boundary) in the concrete will limit its expansion. The steel bar itself also generates tensile stress due to expansion with the concrete, and at the same time generates corresponding compressive stress in the concrete. This compressive stress can offset all or large cracking of the concrete