High-water-retention anti-segregation high-durability precast beam artificial-vibration-free concrete and preparation method thereof

The invention discloses high-water-retention anti-segregation high-durability precast beam manual-vibration-free concrete which comprises the following raw materials: cement, fly ash, granulated blast-furnace slag powder, fine aggregate, coarse aggregate, a water reducing agent, a water-retaining agent, a defoaming agent, an air entraining agent, sodium gluconate, white sugar and water. The water reducing agent is formed by compounding an ether water reducing master batch with the solid content of 40% and an ether slump retaining master batch with the solid content of 40% according to the proportion of 1: 1, the cohesiveness and the water-retaining property of a mixture of the prepared manual-vibration-free concrete for the precast beam are improved under the vibration of a large-scale integral vibration table of a precast yard, the segregation resistance is remarkably improved, and the labor intensity of workers is reduced. And the compactness of the concrete is improved to a certain degree, the solid streng