Vibrating-free, high-strength and self-compacting concrete capable of being pumped for super-large height larger than 620 meters and preparation method of concrete

The invention provides vibrating-free, high-strength and self-compacting concrete capable of being pumped for a super-large height larger than 620 meters and a preparation method of the concrete. The concrete is prepared from components of raw materials in percentage by mass as follows: 14%-15% of cement, 3.5%-4.5% of mineral powder, 2.5%-3.5% of ceramic polishing powder, 1%-2% of superfine fly ash, 70% of aggregate, 0.4%-0.6% of a polycarboxylic acid additive and 6.4%-6.6% of mixing water, wherein the aggregate comprises sand and stones, and the sand ratio ranges from 44% to 50%; sand comprises medium sand and fine sand, the stones comprise large stones and small stones, the fineness modulus of the medium sand is 2.4-2.6, and the fineness modulus of the fine sand is 1.9-2.1; the diameter of each large stone is 10-20 mm, and the diameter of each small stone is 5-10 mm. The high-strength concrete can be prepared with a conventional method. The extended degree of the high-strength and self-compacting concrete d