Concrete protective agent as well as preparation method and application thereof

A concrete and protective agent technology, which is applied in the field of construction engineering, can solve the problems of heavy load wear, affecting the service life of concrete, and the difficulty of realizing concrete protection functions, etc., to achieve convenient construction, improve chemical medium erosion ability and durability, and super penetration and the effect of crystallization ability

Active Publication Date: 2013-09-11
山东高新岩土科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical engineering applications, concrete is often exposed to various harsh environments, such as the intrusion of corrosive media around the environment, changes in ambient temperature and humidity, freeze-thaw cycle damage, and some concrete projects are often subject to heavy load wear, etc. These external conditions will seriously affect the service life of concrete
Therefore, the use of a simple concrete curing agent is difficult to achieve the concrete protection function during pouring.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The composition and weight percent of this embodiment are vinyl acetate polymer powder: 20%, propylene glycol solution: 0.15%, ammonium persulfate: 1.5%, anhydrous sodium carbonate powder: 2%, tartaric acid: 2%, deionized water: 74.35% %. To prepare a 100kg sample for trial mixing.

[0035] Step 1: Weigh 49.56 kg of deionized water and place it in the reactor, stir, slowly add 20 kg of soluble vinyl acetate polymer powder, stir for 15 minutes, slowly add 0.15 kg of propylene glycol, stir for 10 minutes, and form solution 1.

[0036] The second step, weigh 24.75kg of deionized water and put it in the reactor, stir, slowly add 2kg of tartaric acid and keep stirring until it is completely dissolved, continue stirring for 15 minutes; slowly add 2kg of sodium carbonate, stir for 15 minutes until it is completely dissolved Then slowly add solution 1 and stir for 10 minutes, add ammonium persulfate 1.5kg and stir for 15 minutes, then leave it to stand for 1 hour to seal and f...

Embodiment 2

[0039] The composition and weight percent of this embodiment are vinyl acetate polymer powder: 5%, propylene glycol solution: 0.10%, ammonium persulfate: 1.0%, anhydrous sodium carbonate powder: 3%, tartaric acid: 1.5%, deionized water: 88.4% %. To prepare a 100kg sample for trial mixing.

[0040] Step 1: Weigh 58.93 kg of deionized water and place it in the reactor, stir, slowly add 5 kg of soluble vinyl acetate polymer powder, stir for 15 minutes, slowly add 0.10 kg of propylene glycol, stir for 10 minutes, and form solution 1.

[0041] The second step, take 29.47kg of deionized water and place it in the reactor, stir, slowly add 1.5kg of tartaric acid and continue to stir until it is completely dissolved, continue to stir for 15 minutes; slowly add 3kg of sodium carbonate, stir for 15 minutes until all Dissolve; then slowly add solution 1 and stir for 10 minutes, add 1.0 kg of ammonium persulfate and stir for 15 minutes, then let stand for 1 hour to seal and form a sample....

Embodiment 3

[0044] The composition and weight percent of this embodiment are vinyl acetate polymer powder: 15%, propylene glycol solution: 0.20%, ammonium persulfate: 2.0%, anhydrous sodium carbonate powder: 1.5%, tartaric acid: 1.0%, deionized water: 79.3% %. To prepare a 100kg sample for trial mixing.

[0045] Step 1: Weigh 52.2kg of deionized water and place it in the reactor, stir, slowly add 15kg of soluble vinyl acetate polymer powder, stir for 15 minutes, slowly add 0.12kg of propylene glycol, stir for 10 minutes, and form solution 1.

[0046] Second step, the deionized water that takes by weighing 26.1kg is placed in the reactor, stirs, slowly adds 1.0kg tartaric acid and constantly stirs, until all dissolvings, continues to stir for 15 minutes; Slowly adds the sodium carbonate of 1.5kg, stirs for 15 minutes until All dissolved; then slowly add solution 1 and stir for 10 minutes, add 2.0 kg of ammonium persulfate and stir for 15 minutes, then let stand for 1 hour to seal and form...

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Abstract

The invention relates to a concrete protective agent as well as a preparation method and application thereof. The protective agent comprises the following compositions in percentage by weight: 5-20% of dispersible rubber powder, 0.1-0.2% of humectation dispersant, 1-2% of stabilizer, 2-3% of carbonate, 1-2% of tartaric acid and 74.35-88.4% of deionized water. According to the preparation method, all the compositions are added when the concrete is initially poured, thus realizing maintenance function. Compared with the prior art, the concrete protective agent disclosed by the invention has the advantages of simple production process, low cost, obvious protection effect, no toxicity and no pollution; the function of a curing agent is realized at the initial stage of pouring concrete; the function of the protective agent is played after the concrete is hardened; and the ability of concrete on resisting erosion of various media is greatly improved so that the service life of the concrete is prolonged. The concrete protective agent belongs to environment-friendly building materials.

Description

technical field [0001] The invention relates to a material in the technical field of construction engineering and its preparation method and construction application, in particular to a concrete protective agent and its preparation method and application. Background technique [0002] As a bulk and widely used building material, concrete plays a huge role in modern construction projects. Usually concrete is composed of granular coarse aggregate, fine aggregate and cement hydrate. During the pouring process and use, due to various reasons, some quality problems often occur and affect its service life. In the process of pouring and curing, because cement hydration and water evaporation are easy to cause concrete cracking, resulting in poor concrete strength development, therefore, many technical means are applied to newly poured concrete to improve curing performance. Such as Chinese Patent Document No. CN 101219867A, open date: 2008.07.16, has recorded a kind of concrete cur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/26
Inventor 陈兵
Owner 山东高新岩土科技有限公司
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