CN103588411A - High efficiency concrete water reducing agent - Google Patents

High efficiency concrete water reducing agent Download PDF

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Publication number
CN103588411A
CN103588411A CN201310531461.7A CN201310531461A CN103588411A CN 103588411 A CN103588411 A CN 103588411A CN 201310531461 A CN201310531461 A CN 201310531461A CN 103588411 A CN103588411 A CN 103588411A
Authority
CN
China
Prior art keywords
reducing agent
water
lignin sulfonate
depressor
calcium lignin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310531461.7A
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Chinese (zh)
Inventor
王兴文
孙忠
卢祎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU BAIRUIJI NEW MATERIAL CO Ltd
Original Assignee
JIANGSU BAIRUIJI NEW MATERIAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU BAIRUIJI NEW MATERIAL CO Ltd filed Critical JIANGSU BAIRUIJI NEW MATERIAL CO Ltd
Priority to CN201310531461.7A priority Critical patent/CN103588411A/en
Publication of CN103588411A publication Critical patent/CN103588411A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a high efficiency concrete water reducing agent comprising a naphthalene-series high efficiency water reducing agent and a calcium lignosulfonate water reducing agent; the weight ratio of the naphthalene-series high efficiency water reducing agent to the calcium lignosulfonate water reducing agent is 1:1-2.5. The high efficiency concrete water reducing agent uses the naphthalene-series high efficiency water reducing agent and the calcium lignosulfonate water reducing agent for compounding, can effectively reduce production costs, and improves the water reducing ratio.

Description

A kind of concrete high efficiency water reducing agent
Technical field
The present invention relates to a kind of concrete high efficiency water reducing agent.
Background technology
Water reducer refers under concrete workability and the constant condition of cement consumption, can reduce mixing water amount, improve concrete strength; Or under workability and intensity permanence condition, save the admixture of cement consumption.China's turnout is maximum at present, and using the widest high efficiency water reducing agent is naphthalene water reducer.But naphthalene water reducer cost is higher.
Summary of the invention
To the object of the invention is the defect existing in prior art in order solving, the high efficiency water reducing agent that a kind of cost is low to be provided.
In order to achieve the above object, the invention provides a kind of concrete high efficiency water reducing agent, comprise naphthalene series high-efficiency water-reducing agent and calcium lignin sulfonate water depressor; The weight ratio of described naphthalene series high-efficiency water-reducing agent and calcium lignin sulfonate water depressor is 1:1-2.5; Described calcium lignin sulfonate water depressor is prepared by following steps:
1) get liquid waste of pulping by sulfite process and be concentrated into 1/3rd of original volume, add sodium hydroxide to regulate pH value to 8-10, pass into after air reacts 10h at 75 ℃ and obtain reaction soln;
2) to the sodium sulfate adding in the reaction soln of preparation in step (1) with the quality such as described sulphite process spent pulping liquor, replacement(metathesis)reaction 45min at 75 ℃, filters, and obtains described calcium lignin sulfonate water depressor after dry.
Wherein, naphthalene series high-efficiency water-reducing agent and and the preferred weight ratio of calcium lignin sulfonate water depressor be 1:2.
The present invention has the following advantages compared to existing technology: utilize naphthalene series high-efficiency water-reducing agent and calcium lignin sulfonate water depressor to carry out composite, can effectively reduce production costs, improve water-reducing rate.The preparation technology of calcium lignin sulfonate water depressor of the present invention is simple, and few with the precipitation of the composite rear generation of naphthalene series high-efficiency water-reducing agent.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
Calcium lignin sulfonate water depressor: 1) get the liquid waste of pulping by sulfite process (liquid waste of pulping by sulfite process of timber, the natural polymers of the calcium lignin sulphonate that main component is the theme with phenyl-propane, also contain reducing sugar) be concentrated into 1/3rd of original volume, add sodium hydroxide to regulate pH value to 8-10, pass into after air reacts 10h at 75 ℃ and obtain reaction soln;
2) to the sodium sulfate adding in the reaction soln of preparation in step (1) with the quality such as described sulphite process spent pulping liquor, replacement(metathesis)reaction 45min at 75 ℃, filters, and obtains described calcium lignin sulfonate water depressor after dry.
Concrete high efficiency water reducing agent: get naphthalene series high-efficiency water-reducing agent that mass ratio is 1:1 and calcium lignin sulfonate water depressor carry out composite, composite generation be precipitated as 0.1% of naphthalene series high-efficiency water-reducing agent quality, during configuration concrete, volume is 0.25%, water-reducing rate is 18%.
Embodiment 2
Concrete high efficiency water reducing agent: the calcium lignin sulfonate water depressor of getting preparation in naphthalene series high-efficiency water-reducing agent that mass ratio is 1:2 and embodiment 1 carries out composite, composite generation be precipitated as 0.05% of naphthalene series high-efficiency water-reducing agent quality, during configuration concrete, volume is 0.25%, and water-reducing rate is 16%.
Embodiment 3
Concrete high efficiency water reducing agent: the calcium lignin sulfonate water depressor of getting preparation in naphthalene series high-efficiency water-reducing agent that mass ratio is 1:2.5 and embodiment 1 carries out composite, composite generation be precipitated as 0.05% of naphthalene series high-efficiency water-reducing agent quality, during configuration concrete, volume is 0.25%, and water-reducing rate is 15%.

Claims (4)

1. a cement water reducing agent, is characterized in that: comprise naphthalene series high-efficiency water-reducing agent and calcium lignin sulfonate water depressor; The weight ratio of described naphthalene series high-efficiency water-reducing agent and calcium lignin sulfonate water depressor is 1:1-2.5; Described calcium lignin sulfonate water depressor is prepared by following steps:
1) get liquid waste of pulping by sulfite process and be concentrated into 1/3rd of original volume, add sodium hydroxide to regulate pH value to 8-10, pass into after air reacts 10h at 75 ℃ and obtain reaction soln;
2) to the sodium sulfate adding in the reaction soln of preparation in step (1) with the quality such as described sulphite process spent pulping liquor, replacement(metathesis)reaction 45min at 75 ℃, filters, and obtains described calcium lignin sulfonate water depressor after dry.
2. cement water reducing agent according to claim 1, is characterized in that: the weight ratio of described naphthalene series high-efficiency water-reducing agent and calcium lignin sulfonate water depressor is 1:1.
3. cement water reducing agent according to claim 1, is characterized in that: the weight ratio of described naphthalene series high-efficiency water-reducing agent and calcium lignin sulfonate water depressor is 1:2.5.
4. cement water reducing agent according to claim 1, is characterized in that: the weight ratio of described naphthalene series high-efficiency water-reducing agent and calcium lignin sulfonate water depressor is 1:2.
CN201310531461.7A 2013-11-01 2013-11-01 High efficiency concrete water reducing agent Pending CN103588411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310531461.7A CN103588411A (en) 2013-11-01 2013-11-01 High efficiency concrete water reducing agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310531461.7A CN103588411A (en) 2013-11-01 2013-11-01 High efficiency concrete water reducing agent

Publications (1)

Publication Number Publication Date
CN103588411A true CN103588411A (en) 2014-02-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310531461.7A Pending CN103588411A (en) 2013-11-01 2013-11-01 High efficiency concrete water reducing agent

Country Status (1)

Country Link
CN (1) CN103588411A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105801786A (en) * 2016-03-10 2016-07-27 安徽鑫固环保股份有限公司 Low-cost modified naphthalene-based superplasticizer with high slump-keeping property and preparation method thereof
CN106007593A (en) * 2016-05-25 2016-10-12 象州县科学技术局 Method for producing concrete channel prefabricated part from mineral slag
CN106045424A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using construction waste
CN106045423A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using coal gangue
CN106045409A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using steel slag
CN106220088A (en) * 2016-07-25 2016-12-14 陈荣立 Utilize the method that mineral hot furnace slag produces concrete gool prefabricated component
CN111362650A (en) * 2020-03-26 2020-07-03 福建省德化艺飞工艺品有限公司 Method for manufacturing environment-friendly floor tile by using cementing material to replace ceramic material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1970489A (en) * 2006-12-05 2007-05-30 西安建筑科技大学 Low cost modified sulfamate high-effective water-reducing agent and its preparation method
CN102173643A (en) * 2011-01-18 2011-09-07 延边石岘白麓纸业股份有限公司 Concrete water-reducing agent and preparation method thereof
CN102659342A (en) * 2012-05-14 2012-09-12 华北水利水电学院 Retarding superplasticizer composition for roller compacted concrete
CN103172298A (en) * 2011-12-21 2013-06-26 同济大学 Efficient water reducing agent for recycled aggregate concrete as well as preparation method and application thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1970489A (en) * 2006-12-05 2007-05-30 西安建筑科技大学 Low cost modified sulfamate high-effective water-reducing agent and its preparation method
CN102173643A (en) * 2011-01-18 2011-09-07 延边石岘白麓纸业股份有限公司 Concrete water-reducing agent and preparation method thereof
CN103172298A (en) * 2011-12-21 2013-06-26 同济大学 Efficient water reducing agent for recycled aggregate concrete as well as preparation method and application thereof
CN102659342A (en) * 2012-05-14 2012-09-12 华北水利水电学院 Retarding superplasticizer composition for roller compacted concrete

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105801786A (en) * 2016-03-10 2016-07-27 安徽鑫固环保股份有限公司 Low-cost modified naphthalene-based superplasticizer with high slump-keeping property and preparation method thereof
CN105801786B (en) * 2016-03-10 2019-03-01 安徽鑫固环保股份有限公司 A kind of low cost is high to protect the modified naphthalene superplasticizer and preparation method thereof to collapse
CN106007593A (en) * 2016-05-25 2016-10-12 象州县科学技术局 Method for producing concrete channel prefabricated part from mineral slag
CN106045424A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using construction waste
CN106045423A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using coal gangue
CN106045409A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using steel slag
CN106220088A (en) * 2016-07-25 2016-12-14 陈荣立 Utilize the method that mineral hot furnace slag produces concrete gool prefabricated component
CN111362650A (en) * 2020-03-26 2020-07-03 福建省德化艺飞工艺品有限公司 Method for manufacturing environment-friendly floor tile by using cementing material to replace ceramic material

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Application publication date: 20140219