Concrete additive and preparation method thereof

A technology for concrete and additives, applied in the field of concrete, can solve the problems that the performance of concrete additives needs to be improved, the rheological properties of concrete mixture are poor, and the concrete is difficult to set, so as to improve the waterproof and anti-leakage ability, reduce the water consumption for mixing, and reduce the cost. Effect

Inactive Publication Date: 2016-06-08
萧县良宇混凝土有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to add a protective agent to the concrete to protect the concrete. The existing concrete additives have single functions, the rheological properties of the concrete mixture are poor, the concrete is difficult to set, and the demoulding is slow. The performance of the concrete additives needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The concrete additive of this embodiment is made of the following raw materials in percentage by weight: kaolin 15%, latex powder 10%, slag 15%, polyacrylamide 1.5%, butoxy polyalkylene glycol ether 0.5%, lauryl 1% mercaptan, 1.5% glycerol, 2% organic water-soluble polysaccharides, 0.8% initiator, 0.5% waterproof agent, 1% antifreeze, 0.5% anticorrosion agent, and the balance is cement and limestone.

[0023] The preparation method comprises the following steps:

[0024] S1. Weigh each raw material by weight percentage, mix cement, kaolin, limestone, latex powder, and slag together according to weight percentage, burn the clinker at a high temperature of 130-150°C, and then use a grinder to grind the clinker The material is ground until the particle size is 5-10 μm, and the fine powder is obtained, which is set aside;

[0025] S2. Add the fine powder obtained in step S1 and polyacrylamide, butoxy polyalkylene glycol ether, lauryl mercaptan, glycerol, and organic water-...

Embodiment 2

[0028] The concrete additive of this embodiment is made of the following raw materials in percentage by weight: kaolin 35%, latex powder 25%, slag 25%, polyacrylamide 3.5%, butoxy polyalkylene glycol ether 2%, dodecyl 3.2% mercaptan, 3% glycerol, 4% organic water-soluble polysaccharides, 2.5% initiator, 3% waterproof agent, 3% antifreeze, 1.5% anti-corrosion agent, and the balance is cement and limestone.

[0029] The preparation method comprises the following steps:

[0030] S1. Weigh each raw material by weight percentage, mix cement, kaolin, limestone, latex powder, and slag together according to weight percentage, burn the clinker at a high temperature of 150°C, and then grind the fired clinker with a grinder As fine as 10 μm in particle size, fine powder is prepared for use;

[0031] S2. Add the fine powder obtained in step S1 and polyacrylamide, butoxy polyalkylene glycol ether, lauryl mercaptan, glycerol, and organic water-soluble polysaccharides into a mixer for stirr...

Embodiment 3

[0034] The concrete additive of this embodiment is made of the following raw materials in percentage by weight: kaolin 25%, latex powder 20%, slag 18%, polyacrylamide 2.5%, butoxy polyalkylene glycol ether 1.3%, lauryl 2.2% mercaptan, 2.3% glycerol, 3% organic water-soluble polysaccharides, 1.7% initiator, 1.8% waterproof agent, 2% antifreeze, 1% anticorrosion agent, and the balance is cement and limestone.

[0035] The preparation method comprises the following steps:

[0036] S1. Weigh each raw material by weight percentage, mix cement, kaolin, limestone, latex powder, and slag together according to weight percentage, burn the clinker at a high temperature of 140°C, and then grind the fired clinker with a grinder Fine to a particle size of 8 μm, the fine powder is prepared and set aside;

[0037] S2. Add the fine powder obtained in step S1 and polyacrylamide, butoxy polyalkylene glycol ether, lauryl mercaptan, glycerol, and organic water-soluble polysaccharides into a mixer...

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Abstract

The invention provides a concrete additive and a preparation method thereof, relating to the technical field of concrete. The additive is prepared from the following raw materials: cement, kaolin, limestone, latex powder, mineral slag, polyacrylamide, butoxy polyalkaneneglycol ether, dodecathiol, glycerol, organic water-soluble polysaccharides, an initiator, a waterproofing agent, an antifreezing agent and an anticorrosive agent. The concrete additive can greatly reduce the quantity of water for mixing, improves the rheological properties of the concrete mixture, promotes the setting and demolding of the concrete, and accelerates the construction progress. The concrete additive improves the concrete strength and enhances the engineering quality.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete additive 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 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, 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 an importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B14/106C04B24/24C04B18/141C04B24/26C04B24/32C04B24/02C04B24/38C04B7/00C04B14/28C04B2103/60
Inventor 陶根月
Owner 萧县良宇混凝土有限责任公司
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