Natural sodium lignosulfonate water reducing agent for buildings

A technology for sodium lignosulfonate, used in construction, applied in the field of building materials, can solve the problems of the environment, serious air haze, burden, etc., and achieve the effects of uniform appearance and color, product safety and stable performance

Inactive Publication Date: 2018-06-08
钟建军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently commonly used naphthalene-based water reducer has a good tax reduction effect, and a large amount of sulfide will be

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Example 1

[0014] 1. A natural lignin sulfonate sodium salt water reducing agent for construction, the raw materials by weight include: natural extracted lignin 20Kg, sulfur 1Kg, 15% sodium hydroxide solution 15Kg, 98% concentrated sulfuric acid 2Kg, formaldehyde 6Kg, casein 2Kg, 1Kg of tricyclic aromatic hydrocarbons.

[0015] 2. The naturally extracted lignin is a polymer of mellow and coniferyl alcohol.

Example Embodiment

[0016] Example 2

[0017] 1. A natural lignin sulfonate sodium salt construction water reducing agent, the raw materials by weight include: natural extracted lignin 24Kg, sulfur 3Kg, 15% sodium hydroxide solution 18Kg, 98% concentrated sulfuric acid 3Kg, formaldehyde 7Kg, casein 3Kg, 3Kg of tricyclic aromatic hydrocarbons.

[0018] 2. The natural extracted lignin is mellow.

Example Embodiment

[0019] Example 3

[0020] 1. A natural lignin sulfonate sodium salt construction water reducing agent, the raw materials by weight include: natural extracted lignin 28Kg, sulfur 4Kg, 15% sodium hydroxide solution 22Kg, 98% concentrated sulfuric acid 5Kg, formaldehyde 8Kg, casein 4Kg, 3Kg of tricyclic aromatic hydrocarbons.

[0021] 2. The naturally extracted lignin is a polymer of coniferyl alcohol and sinapyl alcohol.

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PUM

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Abstract

The invention belongs to the field of building materials, and provides a natural sodium lignosulfonate water reducing agent for buildings. The water reducing agent is prepared from the following raw materials in parts by weight: 20-30 parts of natural extracted lignin, 1-5 parts of sulfur, 15-25 parts of a 15% sodium hydroxide solution, 1-5 parts of 98% concentrated sulfuric acid, 5-10 parts of formaldehyde, 1-5 parts of casein and 1-5 parts of tricyclic aromatic hydrocarbons. Use of sulfide is reduced, and discharge of sulfide waste and environmental pollution are reduced; natural lignin is adopted as the main raw material, and a product is safe and stable in performance; prepared concrete has excellent workability, and is free of segregation and bleeding and uniform in appearance color.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a natural lignin sulfonate sodium salt building water reducer. Background technique [0002] The rapid development of the modern construction industry and the continuous improvement of construction technology have also put forward higher and higher requirements for the performance of concrete. High-efficiency water-reducing agent helps to improve the performance of concrete. Water-reducing agent refers to the condition that the workability of concrete and the amount of cement remain unchanged, which can reduce the amount of mixing water and increase the strength of concrete; Under the condition, the admixture that saves the amount of cement is used. At present, the commonly used naphthalene-based water reducer has a good tax reduction effect, but a large amount of sulfide will be produced in the production process, which has caused a huge burden on the increasingly ...

Claims

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Application Information

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IPC IPC(8): C04B24/18C08H7/00C04B103/30
CPCC04B24/18C04B2103/302C08H6/00
Inventor 钟建军
Owner 钟建军
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