Plastic inner lining barrel faucet prestress glass fiber reinforced plastic concrete pipe

Abstract

The invention relates to a prestressed glass fiber reinforced plastic (GFRP) reinforced concrete pipe with a plastic inner bush, a mouthing and a socket, which comprises the mouthing, the socket, a concrete wick and a prestressed steel wire. The mouthing and the socket are coaxially and fixedly arranged on the two ends of the concrete wick respectively and the prestressed steel wire twines on the outer wall of the concrete wick. The concrete pipe is characterized in that: the outer wall of the concrete wick is coaxially and fixedly provided with a GFRP jacket and the inner wall of the concrete wick is coaxially and fixedly provided with the plastic inner bush. The reinforced concrete pipe has simple integral structure, scientific and reasonable design, relatively good durability, noncorrosibility, impermeability, uneven settling resistance, small friction resistance coefficient of the inner wall of the pipe, low cost of raw materials and construction, simple construction process and convenient maintenance and is a relatively highly innovative prestressed glass fiber reinforced plastic (GFRP) reinforced concrete pipe with the plastic inner bush, the mouthing and the socket.

Description

technical field [0001] The invention relates to a concrete pipe, in particular to a prestressed fiberglass reinforced concrete pipe with a plastic inner sleeve socket. Background technique [0002] Reinforced concrete pipe is an industrial product made of cement as the base material through deep processing. It has excellent physical and mechanical properties, corrosion resistance, long service life, and low maintenance costs. It is widely used in urban and rural areas, industrial and mining enterprises, farmland water conservancy and energy, It has been widely used in engineering construction such as transportation and communication, and has achieved remarkable social and economic benefits. It has become an indispensable and important building material product in national economic construction. Reinforced concrete pipes mainly include socket-type self-stressed reinforced concrete pipes and prestressed reinforced concrete pipes. Reinforced concrete pipes can withstand a work...

AI Technical Summary

Problems solved by technology

The disadvantages are 1. The impermeability of the pipe body is poor; 2. The friction coefficient of the inner wall of the pipe is large, the flow rate is slow, and the pipe is easy to block; 3. The repair and maintenance costs are high; 4. The weight of the pipe body is heavy, and the transportation and construction costs are high

[0003] After searching, a PCCP pipe was found. On the basis of the existing concrete pipe, a thin steel cylinder was coaxially embedded in the pipe core, and the two ends of the thin steel cylinder were welded on the socket and the socket. Although it can It meets the requirements of good impermeability, but today, the cost of raw materials is increasing, and the manufacturing process is very complicated; and as the pipeline is laid underground for a long time, its steel cylinder will also Corrosion occurs, the repair and maintenance cost is high, and the mortar of the outer protective layer of the pipe is relatively brittle, and micro-cracks are prone to occur during hoisting, transportation and installation. maintenance cost

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