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Concrete gel reducing agent

A glue reducer and concrete technology, which is applied in the field of chemical building materials, can solve the problems of negative impact on concrete durability, uneven technical development level, and nowhere to put solid waste, etc., to improve initial flow performance and improve hydration degree, life-prolonging effect

Active Publication Date: 2014-10-29
浙江五龙新材股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the uneven level of technological development in various regions, some civil mixing plants use a large amount of cement materials in order to seek better concrete workability, resulting in about 20% of cement being used as inert filling materials during the cement hydration process. Cement does not play its full role, which not only causes a waste of resources, but more importantly, has a serious negative impact on the durability of concrete
As a result, some civil projects had major quality problems just after they were built more than ten years ago, and they had to be dismantled, resulting in a lot of solid waste with nowhere to put them

Method used

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Embodiment 1

[0013] 1. The components of ZWL-I glue reducer are as follows

[0014] Sodium aminotrimethylene phosphonate 1.2 Kg

[0015] Resorcinol 3.5 Kg

[0016] Triisopropanolamine 7.5 Kg

[0017] N-Methyldiethanolamine 2.8 Kg

[0018] Water (tap water) 85.0 Kg.

[0019] Accurately weigh sodium aminotrimethylene phosphonate, resorcinol, triisopropanolamine and N-methyldiethanolamine, then add to water at 25°C to 35°C and stir until completely dissolved.

[0020] 2. Concrete test material

[0021] Cement: Zhonglida P.O 42.5

[0022] Fly ash: Jiaxing Class II fly ash

[0023] River sand: Ganjiang sand, the fineness modulus is 2.7, the mud content is 1.8%, and the mud content is O

[0024] Stones: New Kaiyuan stones, 5-20mm continuous graded stones.

[0025] Water reducer: ZWL-A-IX polycarboxylate high performance water reducer and ZWL-A-H naphthalene water reducer.

[0026] Glue reducer: ZWL-I type glue reducer.

[0027] Concrete mix ratio:

[0028]

[0029] Specific concret...

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Abstract

The invention relates to a concrete gel reducing agent which comprises the following formula components in percentage by weight: 1%-3% of phosphonic acid ramifications A, 2%-5% of hydroxy aromatic compounds B, 8%-13% of alkylamine C and the balance of water, wherein the total amount of the phosphonic acid ramifications A, the hydroxy aromatic compounds B and the alkylamine C is 15%. A part of organic substances contained in the concrete gel reducing agent used as a novel concrete additive have molecular structures with three-dimensional spaces and have higher micro dispersion property on cement. If the gel reducing agent is doped into concrete, cement particles are sufficiently refined under the condition that the usage amount of the cement is reduced, the initial flowing property of the concrete is improved, and the hydration degree of a cement mineral is enhanced by promoting the hydration of ferrite which is more difficult to hydrate, so that the early strength is enhanced, the later strength of the cement is effectively excited and the compactness of the concrete is enhanced.

Description

technical field [0001] The invention relates to the technical field of chemical building materials, in particular to a concrete glue reducer. Background technique [0002] Cement is currently the most widely used building cementitious material in the world. With the continuous advancement of my country's urbanization process, the use of cement is increasing year by year. According to statistics, in 2013, my country's cement production reached 2 billion tons, accounting for about 40% of the world's cement. In addition, data show that for every 10,000 tons of cement produced, 15,500 tons of limestone, 12 million tons of coal, and 880,000 kilowatt-hours of electricity are consumed, and 10,000 tons of carbon dioxide and more than ten tons of sulfur dioxide and nitrogen oxide pollution are produced. It can be seen that the mass production and application of cement has brought greater pressure on resources and the environment. [0003] Due to the uneven level of technological d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12
Inventor 张建锋霍志梅王政伟
Owner 浙江五龙新材股份有限公司
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