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Glucose high-polymer marine concrete anti-dispersion agent and preparation method thereof

A marine concrete and anti-dispersant technology, which is applied in the field of glucose high polymer marine concrete anti-dispersant, can solve the problems of unfavorable concrete materials such as large-scale use, high price, and difficult production and supply of cellulose, and achieve simple manufacturing process, Low cost, low impact effect

Inactive Publication Date: 2014-12-10
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although the use of cellulose (SCR) and the new UWB-II polysaccharide flocculant developed and produced by Sinopec is good, the price is expensive, about 120 yuan / kg, and the production and supply of cellulose on the market is difficult. Not conducive to extensive use in concrete materials

Method used

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  • Glucose high-polymer marine concrete anti-dispersion agent and preparation method thereof
  • Glucose high-polymer marine concrete anti-dispersion agent and preparation method thereof
  • Glucose high-polymer marine concrete anti-dispersion agent and preparation method thereof

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Embodiment Construction

[0012] 1 Glucose high polymer marine concrete anti-dispersant, the mass ratio of raw materials is starch: water: ethanol: chloroacetic acid: sodium hydroxide = 100:300:200:50:10, and its preparation method is to mix ethanol, chloroacetic acid After mixing with water, heat up to 50°C, add sodium hydroxide and starch, stir at a speed of 100 rpm, heat to 80°C, keep warm for 1 minute, cool down, and filter and dry the finished product.

[0013] Table 1 shows the comparative test of the slump and expansion of the glucose high polymer marine concrete anti-dispersant of the present invention and the existing polyacrylamide flocculants (PAM) and cellulose flocculants (HPMC).

[0014]

[0015] Table 1 Concrete work performance

[0016]

[0017] The concrete mix ratio is shown in Table 2.

[0018] Table 2 Concrete mix ratio

[0019]

[0020] The anti-dispersion agent of glucose high polymer marine concrete of the present invention and the existing polyacrylamide flocculant (PAM...

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Abstract

The invention discloses a marine concrete anti-dispersion agent which adopts cassava starch with a wide source as a raw material, and is prepared by reacting water, ethanol, chloroacetic acid and sodium hydroxide. The marine concrete anti-dispersion agent disclosed by the invention can be applied to underwater mortar and concrete engineering such as fresh water, sea water and the like, ensures that a mixture has anti-dispersion, anti-impact and self-advection properties, can be used for improving the hardening strength, is wide in raw material source without geographical limitation, is cheap in price, and is beneficial for bulk application.

Description

technical field [0001] The invention relates to a glucose high polymer marine concrete anti-dispersant agent, which is used for underwater mortar or concrete to prevent the erosion of sea water and fresh water, and can also be used as a water-retaining agent and a slump-retaining agent for concrete. Background technique [0002] The flocculants for underwater non-dispersible concrete used in existing underwater consolidation seawalls mainly include polyacrylamides and methyl celluloses. Due to the addition of polyacrylamide, the slump of fresh concrete is significantly reduced, and the fluidity tends to decline with the increase of the flocculant content; the addition of polyacrylamide leads to a significant decrease in the compressive strength of concrete, and polyacrylamide The anti-dispersion of concrete is insufficient during underwater construction, and the fluidity loss of concrete during construction is serious, and the adjustment of setting time is difficult; propyle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/40
Inventor 周宗辉逄博程新
Owner UNIV OF JINAN
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