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Green environmentally-friendly powder reinforced concrete water delivery pipe

A reinforced concrete, green and environmental protection technology, applied in the field of water conveyance engineering, can solve the problems of poor seismic performance, poor impermeability, and many installation interfaces, and achieve the effect of improving durability, reducing brittleness index, and small roughness coefficient.

Active Publication Date: 2013-07-31
黄贺明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country's transmission / drainage pipelines mainly use ordinary concrete drainage pipelines, prestressed three-stage concrete pipes, and PCCP steel cylinder concrete pipes. Disadvantages such as poor corrosion of sewage, high construction costs, and poor earthquake resistance limit the development of the industry
At present, there is no industrially available concrete water pipe that can solve the bottleneck of industry development, reduce the comprehensive construction cost of the project, and improve the durability of the pipe

Method used

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  • Green environmentally-friendly powder reinforced concrete water delivery pipe
  • Green environmentally-friendly powder reinforced concrete water delivery pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Prepare concrete raw materials according to the following proportions:

[0053] 475 parts of low-alkali Portland cement or ordinary Portland cement with an average particle size of 30-60 μm;

[0054] Average particle size 0.18μm, SiO 2 110 parts of silica fume with content ≥85%;

[0055] 115 parts of Class I fly ash with an average particle size of 10-20 μm (calcium oxide content ≤ 10%);

[0056] 145 parts of S95 grade or above slag powder with an average particle size of 10-30 μm;

[0057] 560 parts of quartz sand with a particle size of 0.16~1.63mm;

[0058] 845 parts of stones with a particle size of 5~14mm (crushing index less than 10%, needle flake content less than 5%, mud content less than 0.5%);

[0059] 17 parts of composite high-efficiency water reducer with a water reducing rate greater than 30%;

[0060] 9 parts of rust inhibitor;

[0061] 47.5 parts of high-efficiency expansion agent;

[0062] 140 parts of water;

[0063] Polypropylene fiber 1.0 parts...

Embodiment 2

[0089] Prepare concrete raw materials according to the following proportions:

[0090] 450 parts of low-alkali Portland cement or ordinary Portland cement with an average particle size of 30-60 μm;

[0091] Average particle size 0.18μm, SiO 2 90 parts of silica fume with content ≥85%;

[0092] 100 parts of Class I fly ash with an average particle size of 10-20 μm (calcium oxide content ≤ 10%);

[0093] 130 parts of S95 grade or above slag powder with an average particle size of 10-30 μm;

[0094] 520 parts of quartz sand with a particle size of 0.16~1.63mm;

[0095] 800 parts of stones with a particle size of 5~14mm (crushing index less than 10%, needle flake content less than 5%, mud content less than 0.5%);

[0096] 12 parts of composite high-efficiency water reducer with a water reducing rate greater than 30%;

[0097] 7 parts of rust inhibitor;

[0098] 45 parts of high-efficiency expansion agent;

[0099] 130 parts of water;

[0100] 0.8 parts of polypropylene fib...

Embodiment 3

[0118] Prepare concrete raw materials according to the following proportions:

[0119] 500 parts of low-alkali Portland cement or ordinary Portland cement with an average particle size of 30-60 μm;

[0120] Average particle size 0.18μm, SiO 2 130 parts of silica fume with content ≥85%;

[0121] 130 parts of Class I fly ash with an average particle size of 10-20 μm (calcium oxide content ≤ 10%);

[0122] 160 parts of S95 grade or above slag powder with an average particle size of 10-30 μm;

[0123] 600 parts of quartz sand with a particle size of 0.16~1.63mm;

[0124] 880 parts of stones with a particle size of 5-14mm (crushing index less than 10%, needle flake content less than 5%, mud content less than 0.5%);

[0125] 20 parts of composite high-efficiency water reducer with a water reducing rate greater than 30%;

[0126] 12 parts of rust inhibitor;

[0127] High-efficiency expansion agent: 50 parts

[0128] 150 parts of water;

[0129] 1.2 parts of polypropylene fibe...

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Abstract

The invention belongs to the field of water delivery engineering and relates to a green environmentally-friendly powder reinforced concrete water delivery pipe. The green environmentally-friendly powder reinforced concrete water delivery pipe is manufactured by uniform distribution of concrete on a reinforcement mat. The concrete is prepared from 450 to 500 weight parts of ordinary portland cement or low-alkaline portland cement having the average grain diameter of 30 to 60 microns, 90 to 130 weight parts of silica fume having the average grain diameter of 0.18 microns and SiO2 content greater than or equal to 85%, 100 to 130 weight parts of I-grade coal ash having the average grain diameter of 10 to 20 microns, 130 to 160 weight parts of more than S95 grade of slag powder having the average grain diameter of 10 to 30 microns, 520 to 600 weight parts of quartz sand having the grain diameter of 0.16 to 1.63 millimeters, 800 to 880 weight parts of crushed stone having the grain diameter of 5 to 14 millimeters, 12 to 20 weight parts of a composite high-efficiency water reducer having a water-reducing rate more than 30%, 7 to 12 weight parts of a corrosion inhibitor, 45 to 50 weight parts of a high-efficiency expanding agent, 130 to 150 weight parts of water, 0.8 to 1.2 weight parts of polypropylene fibers, and 80 to 160 weight parts of copper-coated steel fibers having the diameter of 0.18 to 0.25 millimeters and the length of 10 to 15 millimeters. The reinforcement mat is manufactured by weaving hard-drawn wires having the diameter of 4.0 to 6.0 millimeters as reinforcements and cold-rolled ribbed bars having the diameter of 5.0 to 10.0 millimeters as hoop reinforcements.

Description

technical field [0001] The invention belongs to the field of water delivery engineering, and in particular relates to a concrete water delivery pipe. Background technique [0002] Reactive powder concrete is a new type of concrete material with ultra-high strength, high toughness, high durability and stable volume developed by France and other western countries in the early 1990s. The performance of this material is divided into 200MPa and 800MPa. At present, the main application and promotion level in foreign countries is 200MPa, the performance compressive index can reach 130~200MPA, the flexural strength can reach 16~50MPA, the elastic modulus is above 45GPa, the impermeability performance is generally above P30, and the carbonization detection in 28 days is 0 , The electric flux is less than 40 coulombs. In China, RPC materials have been continuously researched and developed. They are mainly used in railway engineering and bridge prefabrication, and their application in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04B28B21/30B28B21/16B28B11/24
Inventor 黄贺明刘福财
Owner 黄贺明
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