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Coral reef sand strengthened material and using method thereof

A technology for strengthening materials and coral reefs, applied in the field of coral reef sand strengthening materials, can solve problems such as limited effect, lack of fresh water, and difficulty in cleaning with chloride ions, etc., to reduce water absorption, overcome low fluidity, and compensate for the loss of concrete fluidity Effect

Inactive Publication Date: 2018-10-12
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited effect of water washing to eliminate chloride ions, it is difficult to clean the chloride ions, and many coral reef sand resources lack fresh water, especially the fresh water on many islands is extremely precious, so the "water washing" method is very important for coral reef sand. It is rarely used in dechlorination treatment

Method used

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  • Coral reef sand strengthened material and using method thereof
  • Coral reef sand strengthened material and using method thereof
  • Coral reef sand strengthened material and using method thereof

Examples

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Effect test

Embodiment 1- Embodiment 4

[0023] Embodiment 1-embodiment 4, steps are as follows:

[0024] According to the material formula in Table 1, 4 kinds of coral reef sand strengthening materials of Examples 1-Example 4 were respectively prepared, which were recorded as A1, 2, A3 and A4.

[0025] Table 1 Formula of coral reef sand strengthening materials (mass, parts)

[0026]

[0027] The 4 kinds of coral reef sand strengthening materials are first prepared in the following order:

[0028] (1) Add 1 part of polyacrylamide to 100 parts of water, let it stand for 12-24 hours to fully dissolve, then stir evenly to make polyacrylamide aqueous solution;

[0029] (2) Add 20-25 parts of water-soluble thermosetting glue and 5-10 parts of polyvinyl acetate emulsion into the above-mentioned polyacrylamide aqueous solution, stir well to make water-soluble thermosetting glue, polyvinyl acetate Mixed solution of ester emulsion and polyacrylamide;

[0030] Then spray all the above four kinds of mixed solutions evenly...

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Abstract

The invention provides a coral reef sand strengthened material and a using method thereof. The coral reef sand strengthened material consists of 100 parts of water, 1 part of polyacrylamide, 20-25 parts of water-soluble thermosetting glue, 5-10 parts of a polyvinyl acetate emulsion and 50-100 parts of cement, wherein the water-soluble thermosetting glue can be one selected from phenolic resin or acrylic resin. The manufacturing method and using method of the material are simple, the preparation raw materials are easy to obtain, the cost of strengthening treatment on coral reef sand is low, andthe material is convenient to use in islands and coastal areas. Through the adoption of the strengthened coral reef sand, the strength of cement mortar or concrete prepared by the coral reef sand isobviously improved, and chloride ions contained in the coral reef sand can be effectively prevented from diffusing to the outside, so that the corrosion probability of steel bars in coral reef sand concrete is reduced, and meanwhile, the fluidity of the mortar or the concrete prepared by the coral reef sand is also improved.

Description

technical field [0001] The invention relates to a coral reef sand strengthening material and its application method. Background technique [0002] Coral reef sand contains a lot of porous particles, and its particle strength is lower than that of ordinary river sand or mountain sand. Correspondingly, the strength of mortar or concrete prepared from it is also lower; coral reef sand is also easy to absorb water, resulting in its mortar, The fluidity of concrete is reduced; at the same time, coral reef sand contains high chloride ions, which will erode the steel bars in concrete, so it cannot be applied to structural concrete containing steel bars, which seriously restricts its application in construction projects. [0003] In recent years, the country has added a lot of infrastructure projects in coastal and island areas. These areas usually have rich coral reef sand resources but lack river sand or natural mountain sand. In fact, most coral reef sand producing areas lack riv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B20/10C04B14/28
CPCC04B20/1077C04B20/1033C04B14/28C04B20/1037
Inventor 朱洪波苟鸿翔
Owner TONGJI UNIV
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