Modified decorative concrete material and preparation method thereof

The invention relates to a modified decorative concrete material and a preparation method thereof. The material comprises cement, fiber, polymer, quartz sand, silica fume, fly ash, an additive, modified nano titanium dioxide and a modified nano silver antibacterial agent. The concrete material has the beneficial effects that through the addition and application of the modified nano titanium dioxide, the concrete material is combined with nitric oxide in the sun and converted into harmless nitrate, and nitric oxides in air can be cleaned; through addition and application of the modified nano-silver antibacterial agent, the concrete material has a very good antibacterial property, and mildew spots and pollution resistance on the surface of concrete can be effectively prevented. 本发明为涉及一种改性装饰混凝土材料及其制备方法，该材料包括水泥、纤维、聚合物、石英砂、微硅粉、粉煤灰、外加剂、改性纳米二氧化钛、改性纳米银抗菌剂。有益效果是：通过改性纳米二氧化钛的添加应用，使得混凝土材料在阳光下结合出氧化氮并转化成无害的硝酸盐，能够对空气中的氮氧化物进行清洁；通过改性纳米银抗菌剂的添加应用，使得混凝土材料具有非常好的抗菌特性，能够有效防止混凝土表面出现霉斑，抗污性。