Ultra-large-area concrete floor and crack control method thereof

The invention provides an ultra-large-area concrete floor and a crack control method thereof, and relates to the field of buildings; the ultra-large-area concrete floor sequentially comprises a concrete surface layer, a stress absorption layer, a concrete cushion layer and a gravel layer from top to bottom; and raw materials of the concrete surface layer contain steel fibers and polypropylene fibers. The steel fibers and the polypropylene fibers are mixed into lightweight aggregate concrete, the cube compressive strength and the splitting tensile strength of the concrete are greatly improved, and therefore cracks can be controlled or reduced. 超大面积混凝土地面及其裂缝控制方法涉及建筑领域。超大面积混凝土地面，自上而下依次为混凝土面层、应力吸收层、混凝土垫层、碎石层；所述混凝土面层的原料中含有钢纤维和聚丙烯纤维。本发明将钢纤维和聚丙烯纤维掺入轻骨料混凝土中，大大提高了混凝土的立方体抗压强度和劈裂抗拉强度，从而有利于控制或减少裂缝的出现。