Prefabricated well lid

• Main Authors: LYU AIHUA, HU CHENGSHENG, CHEN XIAODONG, TANG LING, ZHENG GUIYU, OU XIRONG, HUANG GUOFENG, WANG HAO, DU PENG, SU KAIZHI
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; SOIL SHIFTING; TREATMENT OF NATURAL STONE; UNDERGROUND OR UNDERWATER STRUCTURES

The invention belongs to the technical field of well lids, and particularly relates to a prefabricated well lid. The prefabricated well lid provided by the invention comprises a decorative layer, a reinforcing net and a structural layer, the decorative layer is prepared from the following raw materials in percentage by mass: 20 to 40 percent of white cement, 2 to 4 percent of white silica fume, 43 to 70 percent of colored sand, 2 to 5 percent of inert filler, 0 to 3 percent of pigment, 0.5 to 2 percent of additive and 5 to 8 percent of water; the structural layer is a structural net composed of reinforcing ribs; the reinforcing rib is prepared from the following raw materials in percentage by mass: 25 to 45 percent of cement, 3 to 6 percent of silica fume, 15 to 35 percent of coarse sand, 10 to 25 percent of medium sand, 5 to 20 percent of fine sand, 0.2 to 2 percent of nano silicon dioxide, 1 to 5 percent of fiber, 0.5 to 2 percent of additive and 5 to 8 percent of water. The prefabricated well lid provided