CN104446104A - High-efficiency water reducing agent for improving strength of concrete and preparation method of high-efficiency water reducing agent - Google Patents

Abstract

The invention discloses a high-efficiency water reducing agent for improving strength of concrete. The high-efficiency water reducing agent is characterized by being prepared from the following raw materials in parts by weight: 5-7 parts of zirconium-silicon containing resides, 2-3 parts of nano aluminum oxide, 2-4 parts of hydroxyethyl acrylate, 2-3 parts of per-propyl emulsion powder, 2.5-3.5 parts of alkali lignin, 20-24 parts of methyl alkenyl polyoxyethylene ether, 1-2 parts of dimethyl allyl amine, 3.5-5 parts of methyl methacrylate, 0.1-0.2 part of DSD acid, 1-1.5 parts of sorbitol, 28-30 parts of water and 2-3 parts of a synergist. The high-efficiency water reducing agent is scientific and reasonable in formula, good in dispersity due to addition of the synergist, and good in adaptability to cement quality, the early and later strength and durability of concrete are improved, the peaceability of concrete is improved, the process is easy to operate and control, the water can be reduced, and the use amount of cement is reduced.

Description

A kind of high efficiency water reducing agent increasing concrete strength and preparation method thereof

Technical field

The present invention relates to a kind of preparation method of water reducer, particularly a kind of high efficiency water reducing agent increasing concrete strength and preparation method thereof.

Background technology

After concrete mixes water reducer, because Water-reducing Admixtures To Cements particle has sufficient dissemination, thus improve concrete mobility, enhance its workability; When keeping original workability, can water consumption be reduced, improve concrete intensity.Due to the application of water reducer, its water-reduction can reduce concrete water cement ratio greatly, thus improves concrete intensity.Like this, just can make the concrete of more high strength grade, when ad eundem, can cement consumption be reduced, thus reduce costs, increase economic efficiency.

The present invention fills a prescription rationally, by special process, is added to by synergistic agent in water reducer, and the water reducer made is efficient, can improve concrete dispersiveness and mobility, and add concrete intensity and weather resistance.

Summary of the invention

The object of this invention is to provide a kind of high efficiency water reducing agent increasing concrete strength and preparation method thereof.

In order to realize object of the present invention, the present invention is by following scheme implementation:

Increase a high efficiency water reducing agent for concrete strength, be made up of the raw material of following weight part: zirconium white residue 5-7, nano aluminium oxide 2-3, Hydroxyethyl acrylate 2-4, pure third latex powder 2-3, alkali lignin 2.5-3.5, methyl thiazolinyl Soxylat A 25-7 20-24, DMAA 1-2, methyl methacrylate 3.5-5, DSD acid 0.1-0.2, Sorbitol Powder 1-1.5, water 28-30, synergistic agent 2-3;

Described synergistic agent is prepared from by the raw material of following weight part: ester gum 3-4, quartz sand 6-9, Nano graphite powder 3-5, butyl glycol ether 1-1.5, microcrystalline wax 1.5-2.5, trisodium phosphate 1-2, EVA latex 12-15, aqueous epoxy resins 8-11; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.

A kind of high efficiency water reducing agent increasing concrete strength of the present invention, be made up of following concrete steps:

(1) Sorbitol Powder is dissolved in the water of 3-5 times amount, then adds zirconium white residue, nano aluminium oxide, agitation grinding 2-3 hour;

(2) by Hydroxyethyl acrylate, methyl methacrylate, methyl thiazolinyl Soxylat A 25-7, excess water mixing, be heated to 55 DEG C-70 DEG C, reaction 20-30 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2.5-3 hour under 80 DEG C of-85 DEG C of conditions;

(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 500-800 rev/min and get final product.

The invention has the beneficial effects as follows: scientific formulation of the present invention is reasonable, add synergistic agent, dispersing property is good, improves concrete early stage and later strength and weather resistance; The present invention is good to Cement Quality adaptability, can improve concrete workability, and technique is convenient to manipulation, has water-reduction, has saved cement consumption.

Specific embodiments

Below by specific examples, the present invention is described in detail.

Increase a high efficiency water reducing agent for concrete strength, be made up of the raw material of following weight part (kilogram): zirconium white residue 5, nano aluminium oxide 2, Hydroxyethyl acrylate 2, pure third latex powder 2, alkali lignin 2.5, methyl thiazolinyl Soxylat A 25-7 20, DMAA 1, methyl methacrylate 3.5, DSD acid 0.1, Sorbitol Powder 1, water 28, synergistic agent 2;

Described synergistic agent is prepared from by the raw material of following weight part (kilogram): ester gum 3, quartz sand 6, Nano graphite powder 3, butyl glycol ether 1, microcrystalline wax 1.5, trisodium phosphate 1, EVA latex 12, aqueous epoxy resins 8; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.

A kind of high efficiency water reducing agent increasing concrete strength of the present invention, be made up of following concrete steps:

(1) Sorbitol Powder is dissolved in the water of 3-5 times amount, then adds zirconium white residue, nano aluminium oxide, agitation grinding 2-3 hour;

(2) by Hydroxyethyl acrylate, methyl methacrylate, methyl thiazolinyl Soxylat A 25-7, excess water mixing, be heated to 55 DEG C-70 DEG C, reaction 20-30 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2.5-3 hour under 80 DEG C of-85 DEG C of conditions;

(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 500-800 rev/min and get final product.

The water reducer excellent product performance that the present invention obtains, water-reducing rate can reach 25.8%, and volume of the present invention is the 1%-2% of cement consumption, and in identical water cement ratio situation, the slump can be made to improve more than 15cm, and mobility increases considerably.

Claims (2)

1. one kind increases the high efficiency water reducing agent of concrete strength, it is characterized in that, be made up of the raw material of following weight part: zirconium white residue 5-7, nano aluminium oxide 2-3, Hydroxyethyl acrylate 2-4, pure third latex powder 2-3, alkali lignin 2.5-3.5, methyl thiazolinyl Soxylat A 25-7 20-24, DMAA 1-2, methyl methacrylate 3.5-5, DSD acid 0.1-0.2, Sorbitol Powder 1-1.5, water 28-30, synergistic agent 2-3;

Described synergistic agent is prepared from by the raw material of following weight part: ester gum 3-4, quartz sand 6-9, Nano graphite powder 3-5, butyl glycol ether 1-1.5, microcrystalline wax 1.5-2.5, trisodium phosphate 1-2, EVA latex 12-15, aqueous epoxy resins 8-11; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.

2. a kind of high efficiency water reducing agent increasing concrete strength according to claim 1, is characterized in that, be made up of following concrete steps:

(1) Sorbitol Powder is dissolved in the water of 3-5 times amount, then adds zirconium white residue, nano aluminium oxide, agitation grinding 2-3 hour;

(2) by Hydroxyethyl acrylate, methyl methacrylate, methyl thiazolinyl Soxylat A 25-7, excess water mixing, be heated to 55 DEG C-70 DEG C, reaction 20-30 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2.5-3 hour under 80 DEG C of-85 DEG C of conditions;

(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 500-800 rev/min and get final product.