A new type of reinforced concrete drainage pipe and its manufacturing method

Abstract

The invention discloses a novel reinforced concrete drainage pipe and a manufacturing method thereof. For the existing problem in the reinforced concrete drainage pipeline, the invention provides the key technology for manufacturing a novel reinforced concrete pipe in the following three aspects that: a novel anti-corrosion measure and a port type are used against the environmental factors to improve durability of the pipeline and tightness of the port; with regard to the pipeline itself, formulation of reactive powder concrete (RPC) suited for a drainage pipe is employed as the raw material, so that the strength is higher, the stability is better and the structure is more compact to block the possibly formed permeation passage; and the pipe is cheaper and lighter. The method fundamentally improves the basic performance of the reinforced concrete drainage pipeline. Due to the reduced weight and tighter port, the standard length (2.5 m) of the drainage pipeline is lengthened to 4-6 m.

Description

[0001] Technical field: [0002] The invention belongs to the field of water supply and drainage engineering and water conservancy engineering, and in particular relates to a novel reinforced concrete drainage pipe and a manufacturing method thereof. [0003] Background technique: [0004] Concrete drainage pipes laid underground for a long time are generally used well, and the cost of the pipe itself is very low. However, due to the heavy weight of the pipe, it is difficult to transport and install, and the requirements for the foundation are relatively high (concrete foundation is often used), so the overall cost is not high. Low, and when there are corrosive media inside or outside, corrosion damage will occur, resulting in a decrease in structural strength, failing to meet the requirements of the service life, resulting in waste of energy and resources. In recent years, due to the lack of tightness of the interface of the drainage pipeline, the ground subsidence accidents c...

AI Technical Summary

Problems solved by technology

Conventional anti-corrosion methods for concrete pipelines generally use lining PVC or rubber materials. Due to the problems that PVC and rubber materials are not tightly connected with concrete and are easy to age, after a period of operation, the lining materials will fall off, thus making the pipeline lose its anti-corrosion performance; There are also concrete pipelines that use epoxy anti-corrosion coatings (such as epoxy asphalt, etc.). Since the epoxy coating has no air permeability, the concrete surface of the component must be dry during construction, otherwise the coating is easy to bubble and peel off. anticorrosion failure

Images