CN104402298A - Synergist-added water-reducing agent causing no corrosion to reinforcement steel bar, and preparation method thereof - Google Patents

Synergist-added water-reducing agent causing no corrosion to reinforcement steel bar, and preparation method thereof Download PDF

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Publication number
CN104402298A
CN104402298A CN201410598448.8A CN201410598448A CN104402298A CN 104402298 A CN104402298 A CN 104402298A CN 201410598448 A CN201410598448 A CN 201410598448A CN 104402298 A CN104402298 A CN 104402298A
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China
Prior art keywords
parts
water
corrosion
synergistic agent
reducing agent
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Pending
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CN201410598448.8A
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Chinese (zh)
Inventor
李磊
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ANHUI FUNAN LVYUAN CHEMICAL Co Ltd
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ANHUI FUNAN LVYUAN CHEMICAL Co Ltd
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Priority to CN201410598448.8A priority Critical patent/CN104402298A/en
Publication of CN104402298A publication Critical patent/CN104402298A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a synergist-added water-reducing agent causing no corrosion to reinforcement steel bars. The water-reducing agent is characterized in that the water-reducing agent is prepared from the following raw materials, by weight: 23-26 parts of methoxy polyethylene glycol, 1-2 parts of cellobiose, 2-4 parts of calcium sulfate, 3-4 parts of styrene sodium sulfonate, 1-1.5 parts of dimethicone, 2-3 parts of maleic anhydride, 0.5-0.8 parts of hydrogen peroxide, 0.8-1 parts of acrylamide, 0.6-1 parts of sodium pyrithione, 0.5-0.8 parts of OP-10, 4-6 parts of an aggregate, 2-3 parts of bone meal, 28-30 parts of water and 2-3 parts of the synergist. According to the invention, through development, sodium pyrithione is added, such that good corrosion-resisting effect is provided. Besides the resistance against chemical corrosion, the corrosion to reinforcement steel bars is reduced. With the added synergist, dispersion performance is good, concrete early and late strengths are improved, and concrete durability is improved. According to the invention, on the basis of high water-reducing rate and high strength, the water-reducing agent has excellent construction performances such as excellent working performance, easy pumping, easy compaction, and the like. The water-reducing agent is suitable for popularization.

Description

A kind of add synergistic agent to free from corrosion water reducer of reinforcing bar and preparation method thereof
Technical field
The present invention relates to a kind of preparation method of water reducer, particularly a kind of add synergistic agent to free from corrosion water reducer of reinforcing bar and preparation method thereof.
Background technology
Concrete admixture refers to before mixing concrete mixing or mixes to improve the material of concrete performance in mix process.Because admixture can improve concrete performance effectively, and have good economic benefit, be all widely used in many countries, the application in engineering more and more comes into one's own, and becomes material indispensable in concrete.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, adds the synergistic agent through especial manufacture, enhances dispersiveness, improves concrete intensity, and has long-term weather resistance; Resistance to chemical corrosion is strong, but corrosion-free to reinforcing bar, can be used in various special engineering.It possesses serviceability excellence, easily pumping, the easily excellent workability such as closely knit on high water reducing rate, high strength basis simultaneously.
Summary of the invention
The object of this invention is to provide a kind of add synergistic agent to free from corrosion water reducer of reinforcing bar and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
Add synergistic agent to the free from corrosion water reducer of reinforcing bar, be made up of the raw material of following weight part: methoxy poly (ethylene glycol) 23-26, cellobiose 1-2, calcium sulfate 2-4, Sodium styrene sulfonate 3-4, dimethyl silicone oil 1-1.5, MALEIC ANHYDRIDE 2-3, hydrogen peroxide 0.5-0.8, acrylamide 0.8-1, sodium pyrithione 0.6-1, OP-10 0.5-0.8, aggregate 4-6, bone meal 2-3, 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.
Of the present invention a kind of add synergistic agent to the free from corrosion water reducer of reinforcing bar, be made up of following concrete steps:
(1) cellobiose is water-soluble, then add OP-10, calcium sulfate, aggregate, bone meal, stir 25-35 minute with the speed of 800-1000 rev/min;
(2) by Sodium styrene sulfonate, MALEIC ANHYDRIDE, methoxy poly (ethylene glycol), excess water, hydrogen peroxide mixing, be heated to 50 DEG C-70 DEG C, reaction 30-40 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 1.5-2.5 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 600-800 rev/min and get final product.
The invention has the beneficial effects as follows: the present invention, by development, adds sodium pyrithione, has good preservative effect, except opposing chemical corrosion, reduce the corrosion to reinforcing bar; Add synergistic agent, dispersing property is good, improves concrete early stage and later strength and weather resistance; The present invention possesses serviceability excellence, easily pumping, the easily excellent workability such as closely knit on high water reducing rate, high strength basis simultaneously, is worthy to be popularized.
Specific embodiments
Below by specific examples, the present invention is described in detail.
Add synergistic agent to the free from corrosion water reducer of reinforcing bar, be made up of the raw material of following weight part (kilogram): methoxy poly (ethylene glycol) 23, cellobiose 1, calcium sulfate 2, Sodium styrene sulfonate 3, dimethyl silicone oil 1, MALEIC ANHYDRIDE 2, hydrogen peroxide 0.5, acrylamide 0.8, sodium pyrithione 0.6, OP-10 0.5, aggregate 4, bone meal 2, 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.
Of the present invention a kind of add synergistic agent to the free from corrosion water reducer of reinforcing bar, be made up of following concrete steps:
(1) cellobiose is water-soluble, then add OP-10, calcium sulfate, aggregate, bone meal, stir 25-35 minute with the speed of 800-1000 rev/min;
(2) by Sodium styrene sulfonate, MALEIC ANHYDRIDE, methoxy poly (ethylene glycol), excess water, hydrogen peroxide mixing, be heated to 50 DEG C-70 DEG C, reaction 30-40 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 1.5-2.5 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 600-800 rev/min and get final product.
The water reducer excellent product performance that the present invention obtains, water-reducing rate can reach 26.9%, 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 add synergistic agent to the free from corrosion water reducer of reinforcing bar, it is characterized in that, be made up of the raw material of following weight part: methoxy poly (ethylene glycol) 23-26, cellobiose 1-2, calcium sulfate 2-4, Sodium styrene sulfonate 3-4, dimethyl silicone oil 1-1.5, MALEIC ANHYDRIDE 2-3, hydrogen peroxide 0.5-0.8, acrylamide 0.8-1, sodium pyrithione 0.6-1, OP-10 0.5-0.8, aggregate 4-6, bone meal 2-3, 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. according to claim 1 a kind of add synergistic agent to the free from corrosion water reducer of reinforcing bar, it is characterized in that, be made up of following concrete steps:
(1) cellobiose is water-soluble, then add OP-10, calcium sulfate, aggregate, bone meal, stir 25-35 minute with the speed of 800-1000 rev/min;
(2) by Sodium styrene sulfonate, MALEIC ANHYDRIDE, methoxy poly (ethylene glycol), excess water, hydrogen peroxide mixing, be heated to 50 DEG C-70 DEG C, reaction 30-40 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 1.5-2.5 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 600-800 rev/min and get final product.
CN201410598448.8A 2014-10-31 2014-10-31 Synergist-added water-reducing agent causing no corrosion to reinforcement steel bar, and preparation method thereof Pending CN104402298A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105330793A (en) * 2015-11-25 2016-02-17 科之杰新材料集团有限公司 Preparation method of ether polycarboxylic acid water reducing agent
CN105985055A (en) * 2016-01-15 2016-10-05 安徽鑫润新型材料有限公司 Environment-friendly efficient water reducing agent with excellent corrosion resistance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186462A (en) * 2007-11-26 2008-05-28 江苏博特新材料有限公司 Liquid, chlorine-free, early-strength anti-freezing polycarboxylate composite water reducing agent and preparation method thereof
CN101830663A (en) * 2010-05-28 2010-09-15 浙江五龙化工股份有限公司 Collapse protective poly-carboxylic acid water reducing agent and preparation method thereof
CN102101758A (en) * 2010-12-22 2011-06-22 马清浩 Polyether carboxylic acid water reducer and preparation method thereof
CN102515615A (en) * 2011-12-29 2012-06-27 上海三瑞高分子材料有限公司 Anti-freezing concrete water reducer
CN103224341A (en) * 2013-05-13 2013-07-31 十九冶成都建设有限公司 High-early-strength antifreezing polycarboxylic-acid composite water reducing agent and application thereof
CN103755202A (en) * 2013-12-24 2014-04-30 贵州瑞帝斯建材有限公司 Environment-friendly concrete early-strength anti-freezing water reducing agent

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186462A (en) * 2007-11-26 2008-05-28 江苏博特新材料有限公司 Liquid, chlorine-free, early-strength anti-freezing polycarboxylate composite water reducing agent and preparation method thereof
CN101830663A (en) * 2010-05-28 2010-09-15 浙江五龙化工股份有限公司 Collapse protective poly-carboxylic acid water reducing agent and preparation method thereof
CN102101758A (en) * 2010-12-22 2011-06-22 马清浩 Polyether carboxylic acid water reducer and preparation method thereof
CN102515615A (en) * 2011-12-29 2012-06-27 上海三瑞高分子材料有限公司 Anti-freezing concrete water reducer
CN103224341A (en) * 2013-05-13 2013-07-31 十九冶成都建设有限公司 High-early-strength antifreezing polycarboxylic-acid composite water reducing agent and application thereof
CN103755202A (en) * 2013-12-24 2014-04-30 贵州瑞帝斯建材有限公司 Environment-friendly concrete early-strength anti-freezing water reducing agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105330793A (en) * 2015-11-25 2016-02-17 科之杰新材料集团有限公司 Preparation method of ether polycarboxylic acid water reducing agent
CN105985055A (en) * 2016-01-15 2016-10-05 安徽鑫润新型材料有限公司 Environment-friendly efficient water reducing agent with excellent corrosion resistance

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Application publication date: 20150311