A high-strength and low-cost composite manhole cover

Abstract

A high-strength and low-cost composite well lid comprises a fiber-reinforced bottom layer, a reinforcing steel bar padding layer and a high-hardness wearproof top layer. Pulverescent self-fabricated curing agents are formed by mixing the following materials, by weight ratio, 0.025 part of tertiary butyl ester, 0.015 part of methyl ethyl ketone peroxide, 0.6 part of zinc stearate, 0.02 part of calcium hydroxide, 0.8 part of styrene and 0.4 part of polystyrene, and different reinforcing materials are used in different parts of the well lid. The lower portion of the well lib is reinforced by using fibers to guarantee the bearing capacity of the well lid, net-shaped reinforcing steel bars and a large amount of padding are used in the middle portion of the well lid to improve the non-deformability of products, materials with high hardness and good wearproof and weather resistance performance are used on the upper portion of the well lid, and different patterns and different colors are designed and adopted. Thus, the manufactured well lid can meet the wearproof and weather resistance requirements, and has the advantages of being attractive and beautiful.

Description

technical field [0001] The invention relates to a high-strength and low-cost composite manhole cover of multilayer composite material, which belongs to the field of road building materials. Background technique [0002] The manhole cover is the closure on the top of the outlet leading to the underground facilities. It is necessary to install the manhole cover wherever public facilities such as tap water, telecommunications, electricity, gas, heat, fire protection, and sanitation are installed. With the rapid development of my country's economy, my country's infrastructure construction has ushered in a new cycle, and the market demand for manhole covers in urban planning and road construction is huge. Most of the materials used for manhole covers were reinforced concrete. Because reinforced concrete has defects such as high brittleness, easy aging, and easy fracture, it has been replaced by materials such as cast iron and ductile iron. At present, the amount of cast iron ...

AI Technical Summary

Problems solved by technology

However, cast iron manhole covers have recycling value and are often stolen, resulting in car crashes and deaths from time to time

In order to solve the problem of manhole cover being stolen, an anti-theft device is installed on the cast iron manhole cover, but the use of the anti-theft device increases the cost, but cannot solve the problem fundamentally, and brings a lot of inconvenience to the use