Hollow composite powder concrete cover plate

A technology of concrete cover and composite powder, which is applied in the field of concrete, can solve the problems of easy carbonization, corrosion and damage of the surface, and easy theft of stainless steel metal cover plates, etc., so as to improve the mechanical index performance and durability performance, impact resistance and durability The effect of improving performance and increasing the speed of laying and installation works

Active Publication Date: 2013-07-31
广东泷江源水泥制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology relates to improved strength and durableness for building components such as cables or pipes. By adding specialized reinforcement elements (fiberglass), these compositions can improve their ability to resist damage caused during construction operations without losing effectiveness over time due to environmental concerns associated therewith. Additionally, this new method allows for more flexible and tougher designs while reducing manufacturing expenses compared to traditional methods like casting plaster moldings. Overall, it provides technical benefits to create stronger yet lighter structures suitable for various applications where high levels of safety standards require them.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving powder concrete' properties such as compressive stress capacity (CS), tensile strength, harden time, water absorption rate, perpendicular force response behavior, weatherproof ability, electrical conductivity, thermal insulation, etc., while also reducing its size without compromising safety or usable lifetime. Existing covers made from common cement suffer issues like being too bulky for applications that require lightweight but strong components due to low bending rigidity and lack of sufficient protection against rust. Additionally, existing covers may lose effectiveness over longer periods when exposed to harsh environments where they could become damaged quickly during construction work hours.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Prepare concrete raw materials according to the following proportions:

[0059] 555 parts of low-alkali Portland cement or ordinary Portland cement with an average particle size of 30-60 μm;

[0060] Average particle size 0.18μm, SiO 2 105 parts of silica fume with content ≥85%;

[0061] 150 parts of low-calcium grade I fly ash with an average particle size of 20-40 μm (calcium oxide content ≤ 10%);

[0062] 165 parts of slag powder above grade S95 with an average particle size of 10-30 μm;

[0063] 1180 parts of river sand with a particle size of 0.16~4.75mm (silt content less than 0.5%);

[0064] 22 parts of composite high-efficiency water reducer with a water reducing rate greater than 30%;

[0065] 9.5 parts of rust inhibitor;

[0066] 27.5 parts of water-soluble epoxy resin;

[0067] 136 parts of water;

[0068] 80 parts of copper-coated steel fibers with a diameter of 0.18~0.25mm and a length of 10~15mm;

[0069] 25 parts of end hook steel fibers with a di...

Embodiment 2

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

[0090] 510 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] 130 parts of low-calcium Class I fly ash with an average particle size of 10-20 μm (calcium oxide content ≤ 10%);

[0093] 150 parts of mineral powder above S95 grade with an average particle size of 10-30 μm;

[0094] 1150 parts of river sand with particle size of 0.16~4.75mm (mud content less than 0.5%);

[0095] 20 parts of composite high-efficiency water reducer with a water reducing rate greater than 30%;

[0096] 7 parts of rust inhibitor;

[0097] 25 parts of water-soluble resin;

[0098] 130 parts of water;

[0099] 70 parts of copper-coated steel fibers with a diameter of 0.18~0.25mm and a length of 10~15mm;

[0100] 20 parts of end hook steel fibers with a diameter of 0...

Embodiment 3

[0116] Prepare concrete raw materials according to the following proportions:

[0117] 600 parts of low-alkali Portland cement or ordinary Portland cement with an average particle size of 30-60 μm;

[0118] Average particle size 0.18μm, SiO 2 120 parts of silica fume with content ≥85%;

[0119] 170 parts of low-calcium grade I fly ash with an average particle size of 10-20 μm (calcium oxide content ≤ 10%);

[0120] 185 parts of S95 grade or above slag powder with an average particle size of 10-30 μm;

[0121] 1210 parts of river sand with a particle size of 0.16~4.75mm (silt content less than 0.5%);

[0122] 26 parts of composite high-efficiency water reducer with a water reducing rate greater than 30%;

[0123] 12 parts of rust inhibitor;

[0124] 30 parts of water-soluble epoxy resin;

[0125] 142 parts of water;

[0126] 90 parts of copper-coated steel fibers with a diameter of 0.18~0.25mm and a length of 10~15mm;

[0127] 30 parts of end hook steel fibers with a di...

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Abstract

The invention relates to a hollow structured composite powder concrete cover plate. The composite powder concrete cover plate is prepared by the following raw materials by mass: 510-600 parts of low-alkaline portland cement or ordinary portland cement, 90-120 parts of silica fume, 130-170 parts of I grade fly ash, 150-185 parts of mineral powder higher than S95 grade with average particle sizes of 10-30 [mu]m, 1,150-1,210 parts of river sand with average particle sizes of 0.16-4.75 mm, 20-24 parts of a high-efficiency compound water-reducing agent, 7-12 parts of a corrosion inhibitor, 25-30 parts of a water-soluble epoxy resin, 130-142 parts of water, 70-80 parts of copper-coated ultrafine steel fibers with diameters of 0.18-0.25 mm and lengths of 10-15 mm, 20-30 parts of end hook steel fibers with diameters of 0.4-0.6 mm, lengths 20-25 mm and tensile strength higher than or equal to 1,000 MPa and 0.8-1.5 parts of polypropylene fibers.

Description

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Claims

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Application Information

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Owner 广东泷江源水泥制品有限公司
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