Preparation method of mixed recycled aggregate concrete and mixed recycled aggregate concrete

• Main Authors: ZHAO YIJUE, TANG XUEMEI, GAO ZHILIAN, LIANG ZHENSHENG, LIANG RUIQING, ZHANG BOTAO, HONG CHUANHAI
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2023
• 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 a preparation method of mixed recycled aggregate concrete and the mixed recycled aggregate concrete. The preparation method of the mixed recycled aggregate concrete comprises the step of preparing the mixed recycled aggregate concrete from cement, mixed recycled aggregate, mixed sand, fly ash and an additive, the mixed recycled aggregate is formed by mixing recycled aggregate and primary aggregate, the mixed sand material is formed by mixing recycled fine particles and natural sand, and the mortar is prepared from the mixed sand material. The mass ratio of the recycled aggregate to the mixed recycled aggregate and the non-uniform coefficient, the grading coefficient and the void ratio of the mixed recycled aggregate are specifically limited, so that the reasonable range of the non-uniform coefficient and the grading coefficient of the mixed recycled aggregate with large stacking density and small void ratio and the corresponding filling mixed sand material are determined; therefore, th