Concrete air entraining agent with good foam stability

A technology of concrete and air-entraining agent, which is applied in the field of building materials, can solve the problems of foam stability and compatibility to be further improved, and achieve the effect of improving the stability of bubbles, good compounding, and improving the workability of concrete

Inactive Publication Date: 2020-05-19
石旭艳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this air-entraining agent still has the defects of foam stability and compatibility to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A concrete air-entraining agent with good foam stability is characterized in that it is made of the following raw materials in parts by weight: 20 parts of rosin-based hyperbranched surfactants, 1,4-cyclohexanedimethanol bis(3,4- Epoxy cyclohexane carboxylate) ester / 4,4'-diamino-3,3'-biphenyl disulfonic acid condensation polymer 5 parts, pokeweed saponin C 0.1 part, 2-acrylic acid-hexahydro-4,7- Methylene-1H-indenyl ester / 2-hydroxy-3-butenyl glucosinolate / vinyltrimethoxysilane / polyethylene glycol monoallyl ether copolymer 5 parts, hyperbranched polyglycerin 8 parts, 70 parts of water.

[0032] The preparation method of the 1,4-cyclohexanedimethanol bis(3,4-epoxycyclohexanecarboxylic acid) ester / 4,4'-diamino-3,3'-biphenyldisulfonic acid polycondensate, Including the following steps: oxidizing 1,4-cyclohexanedimethanol bis(3,4-epoxycyclohexanecarboxylate), 4,4'-diamino-3,3'-biphenyldisulfonic acid, hydrogen Sodium was added to tetrahydrofuran, and the reaction was stirr...

Embodiment 2

[0036] A concrete air-entraining agent with good foam stability is characterized in that it is made of the following raw materials in parts by weight: 23 parts of rosin-based hyperbranched surfactants, 1,4-cyclohexanedimethanol bis(3,4- Epoxy cyclohexane carboxylate) ester / 4,4'-diamino-3,3'-biphenyl disulfonic acid condensation polymer 6 parts, pokeweed saponin C 0.5 part, 2-acrylic acid-hexahydro-4,7- Methylene-1H-indenyl ester / 2-hydroxy-3-butenyl glucosinolate / vinyltrimethoxysilane / polyethylene glycol monoallyl ether copolymer 6 parts, hyperbranched polyglycerin 9 parts, 75 parts of water.

[0037] The preparation method of the 1,4-cyclohexanedimethanol bis(3,4-epoxycyclohexanecarboxylic acid) ester / 4,4'-diamino-3,3'-biphenyldisulfonic acid polycondensate, Including the following steps: oxidizing 1,4-cyclohexanedimethanol bis(3,4-epoxycyclohexanecarboxylate), 4,4'-diamino-3,3'-biphenyldisulfonic acid, hydrogen Potassium was added to N,N-dimethylformamide, stirred and react...

Embodiment 3

[0041] A concrete air-entraining agent with good foam stability is characterized in that it is made of the following raw materials in parts by weight: 25 parts of rosin-based hyperbranched surfactants, 1,4-cyclohexanedimethanol bis(3,4- Epoxy cyclohexane carboxylate) ester / 4,4'-diamino-3,3'-biphenyl disulfonic acid condensation polymer 7.5 parts, pokeweed saponin C 0.9 part, 2-acrylic acid-hexahydro-4,7- Methylene-1H-indenyl ester / 2-hydroxy-3-butenyl glucosinolate / vinyltrimethoxysilane / polyethylene glycol monoallyl ether copolymer 7.5 parts, hyperbranched polyglycerol 12 parts, 80 parts of water.

[0042] The preparation method of the 1,4-cyclohexanedimethanol bis(3,4-epoxycyclohexanecarboxylic acid) ester / 4,4'-diamino-3,3'-biphenyldisulfonic acid polycondensate, Including the following steps: oxidizing 1,4-cyclohexanedimethanol bis(3,4-epoxycyclohexanecarboxylate), 4,4'-diamino-3,3'-biphenyldisulfonic acid, hydrogen Sodium was added to N,N-dimethylacetamide, stirred and rea...

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PUM

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Abstract

The invention discloses a concrete air entraining agent with good foam stability. Characterized in that it is characterized in that it comprises, the feed additive is prepared from the following raw materials in parts by weight: 20 to 30 parts of a rosin-based hyperbranched surfactant, 5 to 10 parts of 1,4-cyclohexanedimethanol bis(3,4-epoxycyclohexaneformic acid)ester/4,4-cyclohexanedimethanol bis(3,4-epoxycyclohexaneformic acid) ester, 0.1 to 1.5 parts of phytolaccaside C, 5 to 10 parts of 2-acrylic-hexahydro-4,7-methylene-1H-indenyl ester/2-hydroxy-3-butenyl glucosinolate/vinyltrimethoxysilane/polyethylene glycol monoallyl ether copolymer, 8 to 15 parts of hyperbranched polyglycerol and 70 to 90 parts of water. The invention also discloses a preparation method of the concrete air entraining agent. The concrete air entraining agent disclosed by the invention is good in air entraining effect, good in compounding property with other additives and high in adaptability to concrete, and can effectively improve the bubble stability of fresh concrete, remarkably improve the strength of the concrete and improve the workability, durability and freezing resistance of the concrete.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a concrete air-entraining agent with good foam stabilizing properties and a preparation method thereof. Background technique [0002] In recent years, with the increasing construction of modern cities in our country, various construction projects have come one after another, and all kinds of buildings have sprung up like mushrooms after rain. Behind them, the use of concrete is inseparable. 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 additives and admixtures added when necessary, 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, concret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42C04B103/30
CPCC04B40/0039C04B2103/304C04B24/34C04B24/045C04B24/20C04B22/062C04B24/10C04B24/06C04B24/16C04B24/42C04B24/32C04B24/129C04B24/28
Inventor 石旭艳
Owner 石旭艳
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