A high-efficiency water reducer for high-strength concrete

A high-efficiency water reducer and high-strength concrete technology, which is applied to high-efficiency water reducers; special equipment for preparing the high-efficiency water reducer, pressure mixing vessels, and the field of preparation of high-efficiency water reducers can solve the problem of low water-reducing rate and flow Problems such as poor sex and low strength

Active Publication Date: 2020-05-12
江苏昆腾新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water reducing agents currently used in the market have the disadvantages of low water reducing rate, poor fluidity, and low strength, which cannot meet the requirements of the market.

Method used

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  • A high-efficiency water reducer for high-strength concrete
  • A high-efficiency water reducer for high-strength concrete
  • A high-efficiency water reducer for high-strength concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A high-efficiency water reducer for high-strength concrete, consisting of the following raw materials in parts by weight: 3 parts of decaglyceryl myristate, 8 parts of sodium tripolyphosphate, 3 parts of sodium polyacrylate, dodecylbenzenesulfonic acid 7 parts of sodium, 11 parts of polymaleic acid (HPMA), 6 parts of zinc salt, 5 parts of maltodextrin, 8 parts of N,N'-dinitrosopentamethylenetetramine, 8 parts of azodicarbonamide , 3 parts of N,N-dimethylcyclohexylamine, 6 parts of polyacrylamide (PAM), 15 parts of hydroxyethyl cellulose, 12 parts of sodium carboxymethyl cellulose, 14 parts of naphthalenesulfonate formaldehyde condensate and 6 parts of auxiliary agent;

[0060] The auxiliary agent is composed of the following raw materials in parts by weight: 12 parts of 2-ethylhexyl phosphate, 10 parts of octylphenol polyoxyethylene ether, 5 parts of N,N'-ethylene bisstearamide, lignin sulfonate 10 parts of calcium chloride, 8 parts of β-naphthalene sulfonate formaldeh...

Embodiment 2

[0068] Example 2: A high-efficiency water reducer for high-strength concrete, consisting of the following raw materials in parts by weight: 6 parts of decaglyceryl myristate, 7 parts of sodium tripolyphosphate, 2 parts of sodium polyacrylate, dodecane 8 parts of sodium phenylsulfonate, 10 parts of polymaleic acid (HPMA), 6 parts of zinc salt, 5 parts of maltodextrin, 6 parts of N,N'-dinitrosopentamethylenetetramine, azobis 6 parts of formamide, 4 parts of N,N-dimethylcyclohexylamine, 6 parts of polyacrylamide (PAM), 16 parts of hydroxyethyl cellulose, 8 parts of sodium carboxymethyl cellulose, naphthalenesulfonate formaldehyde condensation 14 parts and 5 parts of additives;

[0069] The auxiliary agent is composed of the following raw materials in parts by weight: 12 parts of 2-ethylhexyl phosphate, 9 parts of octylphenol polyoxyethylene ether, 6 parts of N,N'-ethylene bisstearamide, lignin sulfonate 10 parts of calcium chloride, 10 parts of β-naphthalene sulfonate formaldehy...

Embodiment 3

[0078] A high-efficiency water reducer for high-strength concrete, consisting of the following raw materials in parts by weight: 5 parts of decaglyceryl myristate, 6 parts of sodium tripolyphosphate, 4 parts of sodium polyacrylate, dodecylbenzenesulfonic acid 6 parts of sodium, 10 parts of polymaleic acid (HPMA), 4 parts of zinc salt, 8 parts of maltodextrin, 8 parts of N,N'-dinitrosopentamethylenetetramine, 5 parts of azodicarbonamide , 4 parts of N,N-dimethylcyclohexylamine, 6 parts of polyacrylamide (PAM), 15 parts of hydroxyethyl cellulose, 10 parts of sodium carboxymethyl cellulose, 15 parts of naphthalenesulfonate formaldehyde condensate and 4 parts of auxiliary agent;

[0079] The auxiliary agent is composed of the following raw materials in parts by weight: 12 parts of 2-ethylhexyl phosphate, 8 parts of octylphenol polyoxyethylene ether, 5 parts of N,N'-ethylene bisstearamide, lignin sulfonate 10 parts of calcium chloride, 7 parts of β-naphthalene sulfonate formaldehy...

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Abstract

The invention belongs to the technical field of concrete admixtures, and particularly relates to a high-efficiency water reducing agent for high-strength concrete. The high-efficiency water reducing agent is prepared from, by weight, 3-6 parts of polyglyceryl-10 myristate, 5-8 parts of sodium tripolyphosphate, 2-5 parts of sodium polyacrylate, 4-9 parts of sodium dodecylbenzene sulfonate, 10-12 parts of hydrolyzed polymaleic anhydride (HPMA), 3-7 parts of zinc salt, 5-12 parts of maltodextrin, 5-10 parts of N,N'-dinitrosopentamethylenetetramine, 5-10 parts of azodicarbonamide, 3-4 parts of N,N-dimethylcyclohexylamine, 6-8 parts of polyacrylamide (PAM), 15-20 parts of hydroxyethyl cellulose, 8-16 parts of sodium carboxymethylcellulose, 13-20 parts of a naphthalenesulfonate formaldehyde condensate and 3-6 parts of an auxiliary agent. The water reducing agent has various types of hydrophilic groups, high water-reducing efficiency and good fluidity, can obviously improve the fluidity of the concrete, has a remarkable early strengthening effect after final setting, and can significantly improve the strength of the concrete at various ages.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, in particular to a high-efficiency water reducer for high-strength concrete; [0002] The invention also discloses a preparation method of the high-efficiency water reducer; [0003] The invention also discloses special equipment for preparing the high-efficiency water reducer, that is, a pressure mixing container. Background technique [0004] Concrete admixtures, referred to as admixtures for short, refer to substances that are added to improve the performance of concrete before or during the mixing of concrete. Because admixtures can effectively improve the performance of concrete and have good economic benefits, they have been widely used in many countries, and their application in engineering has attracted more and more attention, becoming an indispensable material in concrete. Among them, the water reducer is the most important admixture in concrete. It can reduce the mixing w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B103/30
CPCC04B40/0039C04B2103/302C04B24/283C04B24/26C04B24/20C04B24/2664C04B24/38C04B24/121C04B24/124C04B24/2652C04B24/226C04B24/383C04B24/32C04B24/18C04B24/003C04B24/06C04B24/04C04B24/24C04B14/042C04B14/28C04B14/305C04B22/12C04B22/08
Inventor 李双双
Owner 江苏昆腾新材料科技有限公司
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