High-early-strength concrete for fabricated PC component

• Main Authors: WANG WEISHAN, FU LEFENG
• Format: Patent
• Language: Chinese; English
• Published: 13.04.2021
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses high-early-strength concrete for a fabricated PC component. The high-early-strength concrete is prepared from the following raw materials in parts by weight: 350-400 parts of cement, 50-80 parts of fly ash, 550-630 parts of sand, 1100-1200 parts of stone, a water reducing agent accounting for 1.0-2.0% of the sum of the mass of the cement and the fly ash, an early strength agent accounting for 1.0-10.0% of the sum of the mass of the cement and the fly ash, and mixing water accounting for 30-35% of the sum of the mass of the cement and the fly ash. The preparation method comprises the following steps: weighing a certain mass of cement, fly ash, sand and stones, adding the components into a horizontal concrete mixer for stirring for 1 minute to uniform mixing; weighing a certain mass of the water reducing agent, the early strength agent and the mixing water, performing mixing and full stirring, then, adding the mixed solution into the concrete stirrer, fully stirring for 1.5-3 minutes, an