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A kind of low-cost and high-efficiency high-strength waterproof concrete and preparation method thereof

A waterproof concrete, high-strength technology, applied in the field of concrete, can solve the problems of hindering the actual reaction of waterproofing agent, increasing the amount of waterproofing agent used, reducing the efficiency of waterproofing agent, etc., to achieve the effect of improving waterproofing efficiency, reducing dosage, and improving drainage efficiency

Active Publication Date: 2022-04-01
FUJIAN DADI CONCRETE PILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In practical applications, the gravel and sand used in synthetic concrete still contain a large amount of fine powder such as stone powder, and the fly ash fed into the concrete will absorb a large amount during the process of mixing with the waterproofing agent due to the large surface area and the problem of pores. Waterproofing agent, which hinders the actual reaction of the waterproofing agent, reduces the efficiency of the waterproofing agent, and greatly increases the amount of waterproofing agent used

Method used

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  • A kind of low-cost and high-efficiency high-strength waterproof concrete and preparation method thereof
  • A kind of low-cost and high-efficiency high-strength waterproof concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The waterproofing agent formula and concrete formula are shown in Table 1.

[0030] Among them, the hydrophobic component is fluorine-containing polyhedral oligomeric silsesquioxane F-POSS and stearic acid hydroxychromium chloride in a mass ratio of 3:1; the water-reducing component is a polycarboxylic acid-based water reducer, and its weight The percentage concentration is 6%; the causing component is saponin; the dispersing component is heavy calcium carbonate.

[0031] Wherein the fly ash is low-calcium II grade, fineness is 8%, water demand ratio is 95%, and loss on ignition is 2%; described sand is the medium sand whose particle gradation area is the second zone, and the fineness modulus is 2.3, the mud content is 2%, and the mud content is 0.45%.

[0032] Wherein the epoxy resin is bisphenol A epoxy resin; the diluent used to dilute the epoxy resin is toluene, and the addition amount is 70phr-80phr.

[0033] The nano-calcium carbonate is composed of nano-calcium...

Embodiment 2

[0040] The waterproofing agent formula and concrete formula are shown in Table 1.

[0041] Among them, the hydrophobic component is fluorine-containing polyhedral oligomeric silsesquioxane F-POSS and stearic acid hydroxychromium chloride in a mass ratio of 4:1; The percentage concentration is 8%; the causing component is alkylbenzene sulfonic acid; the dispersing component is heavy calcium carbonate.

[0042] Wherein the fly ash is low-calcium II grade, fineness is 10%, water demand ratio is 97%, and loss on ignition is 3.5%; described sand is the medium sand whose particle gradation area is the second zone, and the fineness modulus is 2.5, the mud content is 2.3%, and the mud content is 0.55%.

[0043] Wherein the epoxy resin is bisphenol A epoxy resin; the diluent used to dilute the epoxy resin is benzyl alcohol, and the addition amount is 70phr-80phr.

[0044]The nano-calcium carbonate is composed of nano-calcium carbonate with a particle size of 40nm and nano-calcium car...

Embodiment 3

[0051] The waterproofing agent formula and concrete formula are shown in Table 1.

[0052] Among them, the hydrophobic component is fluorine-containing polyhedral oligomeric silsesquioxane F-POSS and stearic acid hydroxychromium chloride in a mass ratio of 5:1; the water-reducing component is a polycarboxylic acid-based water reducer, and its weight The percentage concentration is 10%; the causing component is rosin thermal polymer; the dispersing component is heavy calcium carbonate.

[0053] Wherein the fly ash is low-calcium II grade, fineness is 13%, water demand ratio is 98%, and loss on ignition is 4.5%; described sand is the medium sand whose particle gradation area is the second zone, and the fineness modulus is 2.6, the mud content is 2.6%, and the mud content is 0.65%.

[0054] Wherein the epoxy resin is bisphenol A epoxy resin; the diluent used to dilute the epoxy resin is benzyl and xylene alcohol, and the addition amount is 70phr-80phr.

[0055] The nano-calcium...

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Abstract

The invention relates to a high-strength waterproof concrete, which contains the following raw materials in parts by weight: 1000-1200 parts of gravel, 600-700 parts of sand, 250-350 parts of Portland cement, 60-80 parts of fly ash, diluted 40-60 parts of epoxy resin, 5-15 parts of waterproofing agent, 150-170 parts of water, and 60-80 parts of nano calcium carbonate. The high-strength waterproof concrete provided by the invention has good compressive strength and the functions of impervious, waterproof and water-repellent, which simplifies construction, shortens the construction period, and can also reduce the loss of waterproofing agent and improve the efficiency of waterproofing agent.

Description

technical field [0001] The invention relates to the technical field of concrete, and relates to a low-cost and high-efficiency high-strength waterproof concrete and a preparation method thereof, especially saves waterproofing agents and improves the efficiency of waterproofing agents, and can also have good compressive strength and anti-seepage, waterproof and hydrophobic properties. function and simplify construction. Background technique [0002] With the development and progress of science and technology, in order to make concrete adapt to the needs of construction, people have studied the reasons that affect the mechanical properties and durability of concrete from various aspects, and the main influencing factors are the defects of concrete itself, and design experiments for these reasons Numerous new types of concrete have been developed to improve their performance, such as recycled concrete, low-strength concrete, lightweight concrete, self-compacting concrete, high-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B14/28C04B111/27C04B103/65
CPCC04B28/04C04B14/28C04B40/0039C04B2103/65C04B2111/00293C04B2201/50C04B14/02C04B14/06C04B18/08C04B24/281C04B2103/302C04B2103/304C04B24/42C04B24/40C04B24/10C04B24/20C04B24/34C04B20/008
Inventor 杨金辉杨晓彬董伟东周艳文冯三苟林丽华林成
Owner FUJIAN DADI CONCRETE PILE
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