Cement concrete added with modified waste tire rubber powder as well as preparation method and application of cement concrete

The invention discloses cement concrete added with modified waste tire rubber powder as well as a preparation method and application of the cement concrete, and the cement concrete comprises the following components in parts by weight: 300-400 parts of 52.5 R cement; 1100 to 1400 parts of broken stone; 600 to 800 parts of sand; 10 to 100 parts of waste tire rubber powder; 1-10 parts of a modifier; 0.1 to 1 part of PP fiber; 1-5 parts of a water reducing agent; and 0.1-0.3 part of a defoaming agent. The cement concrete provided by the invention not only can greatly promote the recycling of the waste tires, but also can improve the problem that the cement concrete is easy to crack. 本发明公开了一种添加改性废旧轮胎橡胶粉的水泥混凝土及其制备方法和应用，其中，以重量份计，所述水泥混凝土包括：52.5R水泥300-400份；碎石1100-1400份；砂子600-800份；废旧轮胎橡胶粉10-100份；改性剂1-10份；PP纤维0.1-1份；减水剂1-5份；消泡剂0.1-0.3份。本发明提供的水泥混凝土不仅能够大力促进废旧轮胎的回收再利用，而且能够改善水泥混凝土的易开裂的问题。