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Feldspar waste concrete and preparation method thereof

A concrete and scrap technology, applied in the field of concrete, can solve the problems of macro cracks, reduction of concrete strength, concrete damage, etc.

Inactive Publication Date: 2021-04-02
梁水明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing concrete is prone to voids, which can easily lead to the development of macroscopic cracks, cause internal damage to the concrete, and reduce the strength of the concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Weigh the corresponding raw materials in parts by weight: 80 parts of feldspar waste, 40 parts of cement, 20 parts of nano-alumina powder, 10 parts of fly ash, 40 parts of coarse aggregate, 200 parts of medium sand, 10 parts of clay, modified 10 parts of agent, 8 parts of water, described modifying agent comprises triethoxy vinyl silane and β-naphthalene sulfonate sodium formaldehyde condensate, in described modifying agent triethoxy vinyl silane and β-naphthalene sulfonate The mass ratio between sodium acid formaldehyde condensation products is 5:1;

[0027] 2) Mix clay and nano-alumina powder, then calcinate the mixture of clay and nano-alumina powder at 1100°C for 60min, at 900°C for 180min, at 800°C for 80min, at 750°C Calcining for 60min at C, calcining for 60min at 550°C, and calcining for 60min at 350°C, and then cooling to obtain the calcined mixture;

[0028] 3) Heating triethoxyvinylsilane in a water bath so that the temperature of triethoxyvinylsilane is ...

Embodiment 2

[0031] 1) Weigh the corresponding raw materials by weight: 85 parts of feldspar waste, 45 parts of cement, 25 parts of nano-alumina powder, 15 parts of fly ash, 45 parts of coarse aggregate, 25 parts of medium sand, 15 parts of clay, modified 10.5 parts of agent, 8.5 parts of water, described modifying agent comprises triethoxyvinyl silane and β-naphthalene sulfonate sodium formaldehyde condensate, in the described modifying agent triethoxy vinyl silane and β-naphthalene sulfonate The mass ratio between sodium acid formaldehyde condensation products is 5:1;

[0032] 2) Mix clay and nano-alumina powder, then calcinate the mixture of clay and nano-alumina powder at 1100°C for 60min, at 900°C for 180min, at 800°C for 80min, at 750°C Calcining for 60min at C, calcining for 60min at 550°C, and calcining for 60min at 350°C, and then cooling to obtain the calcined mixture;

[0033] 3) Heating triethoxyvinylsilane in a water bath so that the temperature of triethoxyvinylsilane is 75°...

Embodiment 3

[0036] 1) Weigh the corresponding raw materials in parts by weight: 90 parts of feldspar waste, 50 parts of cement, 30 parts of nano-alumina powder, 20 parts of fly ash, 50 parts of coarse aggregate, 30 parts of medium sand, 20 parts of clay, modified 11 parts of agent, 9 parts of water, the modifier includes triethoxyvinyl silane and β-naphthalene sulfonate sodium formaldehyde condensate, in the modifier, triethoxy vinyl silane and β-naphthalene sulfonate The mass ratio between sodium acid formaldehyde condensation products is 5:1;

[0037] 2) Mix clay and nano-alumina powder, then calcinate the mixture of clay and nano-alumina powder at 1100°C for 60min, at 900°C for 180min, at 800°C for 80min, at 750°C Calcining for 60min at C, calcining for 60min at 550°C, and calcining for 60min at 350°C, and then cooling to obtain the calcined mixture;

[0038] 3) Heating triethoxyvinylsilane in a water bath so that the temperature of triethoxyvinylsilane is 75°C;

[0039] 4) Mix felds...

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PUM

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Abstract

The invention is applicable to the technical field of concrete, and provides feldspar waste concrete and a preparation method thereof. The feldspar waste concrete is prepared from, by weight, 80-100 parts of feldspar waste, 40-60 parts of cement, 20-40 parts of nanometer aluminum oxide powder, 10-30 parts of coal ash, 40-60 parts of coarse aggregate, 20-40 parts of medium sand, 10-30 parts of argil, 10-12 parts of modifier and 8-10 parts of water, wherein the modifier is prepared from triethoxyvinylsilane and a beta naphthalene sulfonic acid sodium formaldehyde condensate. According to the concrete disclosed by the invention, internal gaps of the concrete can be reduced to a certain extent by adding the nano aluminum oxide powder and the fly ash, and meanwhile, the impact toughness of theconcrete is improved; by adding the modifier, internal gaps of the concrete can be effectively reduced, so the concrete disclosed by the invention has good later strength.

Description

technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to a feldspar waste concrete and a preparation method thereof. Background technique [0002] Concrete is one of the most important civil engineering materials today. It is composed of cementitious materials, granular aggregates (also known as aggregates), water, and if necessary, admixtures and admixtures prepared in a certain proportion, uniformly stirred, densely formed, cured and hardened. artificial stone. Concrete has the characteristics of rich raw materials, low price and simple production process, so its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make it widely used, not only in various civil engineering, but also in shipbuilding, machinery industry, marine development, geothermal engineering, etc. Concrete is also ...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/52
Inventor 梁水明
Owner 梁水明
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