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Novel concrete synergist and its manufacturing process

A technology of concrete synergists and reinforcing components, applied in concrete synergists, admixtures that significantly improve various properties of concrete, and in the field of manufacturing technology of the above-mentioned concrete synergists, can solve the problem of large slump loss and changes in concrete Bleeding, high energy consumption and other problems to achieve the effect of reducing slump loss

Active Publication Date: 2017-08-04
广州基业长青新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of concrete is huge. In the concrete mix ratio, the amount of cement is extremely high. Cement production enterprises are enterprises with high energy consumption. Its production produces a large amount of greenhouse gases and emits them into the atmosphere, saving cement consumption and achieving energy saving and emission reduction. The purpose is an important strategic requirement of the country, and the current ready-mixed concrete is easy to bleed, has a large slump loss, and poor waterproof performance. The concrete reinforcement or synergist invented in the past only focuses on the strength. Bleeding, concrete slump, concrete anchorage to steel bars, concrete impermeability and water resistance, concrete anti-seawater corrosion, admixtures instead of cement, etc. have poor effects

Method used

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  • Novel concrete synergist and its manufacturing process
  • Novel concrete synergist and its manufacturing process
  • Novel concrete synergist and its manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The weight ratio of various synergists is as follows: anti-bleeding component 704g, reinforcing component 85g, densifying component 80g, dispersing component 60g, air-entraining component 6g, compounding component 65g. Mix and stir to make a synergist. The dosage of synergist is 0.6%, and the test is carried out according to Table 1, and the results are shown in Table 2.

[0022] The slump loss of the SY-1 test is 13mm less than that of the blank test, that is, 35.1%. The bleeding is reduced from 36.5% to 8%. 4.3, saving 40 kg per cubic concrete cement. The 7-day, 28-day, and 60-day strengths are slightly higher than blank concrete.

[0023] The mix ratio of SY-2 remains the same, 0.6% synergist is added, the test slump loss is 11mm less than that of the blank test, that is, 29.7%, the bleeding is reduced from 36.5% to 0%, the impermeability level is increased to P20, and the steel bar is anchored The strength increased by 30.6%, and the chloride ion diffusion coeffi...

Embodiment 2

[0028] The specific weight ratio of various synergists is as follows: anti-bleeding component 692g, reinforcing component 105g, densifying component 70g, dispersing component 60g, air-entraining component 8g, compounding component 65g. Mix and stir to make a synergist. The dosage of synergist is 0.6%, and the test is carried out according to Table 1, and the results are shown in Table 3.

[0029] The slump loss of the SY-1 test is 18mm less than that of the blank test, that is, 50%, the bleeding is reduced from 37% to 5%, the impermeability level is increased to P22, the anchorage force of the steel bar is increased by 23.5%, and the chloride ion diffusion coefficient is reduced from 4.9 4.1, saving 40 kg per cubic concrete cement. The strength of 7 days, 28 days and 60 days is significantly higher than that of blank concrete, namely 2.2MPa, 2.7 MPa and 3.6MPa.

[0030] The mix ratio of SY-2 remains the same, 0.6% synergist is added, the test slump loss is 15mm less than tha...

Embodiment 3

[0035] The weight ratio of various synergists is as follows: anti-bleeding component 718g, reinforcing component 115g, densifying component 60g, dispersing component 50g, air-entraining component 7g, compounding component 50g. Mix and stir to make a synergist. The dosage of synergist is 0.6%, and the test is carried out according to Table 1, and the results are shown in Table 4.

[0036] The slump loss of the SY-1 test is 11mm less than that of the blank test, which is 30.6%, the bleeding is reduced from 36% to 7%, the impermeability level is increased to P19, the anchorage force of the steel bar is increased by 19.5%, and the chloride ion diffusion coefficient is increased from 4.8 Reduced to 4.4, saving 40 kg per cubic concrete cement. The 7-day, 28-day, and 60-day strengths are slightly higher than blank concrete.

[0037] The mix ratio of SY-2 remains the same, 0.6% synergist is added, the test slump loss is 10mm less than that of the blank test, that is, 27.8%, the blee...

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Abstract

The invention discloses a new type of concrete synergist, the percentages of which are anti-bleeding component: reinforcing component: densifying component: dispersing component: air-entraining component: matching component; the anti-bleeding component The water component includes polysaccharides and / or cellulose ether and / or polyacrylamide, and the strengthening component includes ethylene glycol monoisopropanolamine, ethylene glycol monoisopropanolamine and triethanolamine and triisopropanolamine The composition of propanol, the densification component comprises nano silicon dioxide and / or colloidal silicon dioxide monomer, the dispersion component comprises MF and / or TCL and / or NNO, and the air-entraining component comprises Sodium dodecylbenzenecyclonate and / or sodium dodecylbenzenesulfate, the matching components are polymeric alcohol amines and / or polymeric polyols respectively. The present invention also provides the production process of the above-mentioned novel concrete synergist. The present invention has the following technical effects: 1. It can enhance the strength of concrete; 2. It can reduce the amount of cement under the same strength; 3. It can reduce the chloride ion permeability coefficient and reduce slump loss.

Description

technical field [0001] The invention relates to a concrete synergist, in particular to an admixture which significantly improves various properties of concrete, and belongs to the technical field of construction admixtures. The present invention also relates to the manufacturing process of the above-mentioned concrete synergist. Background technique [0002] At present, with the acceleration of urbanization in our country, in transportation, construction, water conservancy and other industries. The amount of concrete is huge. In the concrete mix ratio, the amount of cement is extremely high. Cement production enterprises are enterprises with high energy consumption. Its production produces a large amount of greenhouse gases and emits them into the atmosphere, saving cement consumption and achieving energy saving and emission reduction. The purpose is an important strategic requirement of the country, and the current ready-mixed concrete is easy to bleed, has a large slump l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B24/28C04B24/26C04B22/06
Inventor 孙林柱孙磊杨芳
Owner 广州基业长青新材料股份有限公司
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