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CN102079641A - Compound early strength agent for concrete - Google Patents

Compound early strength agent for concrete Download PDF

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Publication number
CN102079641A
CN102079641A CN 200910220168 CN200910220168A CN102079641A CN 102079641 A CN102079641 A CN 102079641A CN 200910220168 CN200910220168 CN 200910220168 CN 200910220168 A CN200910220168 A CN 200910220168A CN 102079641 A CN102079641 A CN 102079641A
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China
Prior art keywords
concrete
early strength
early
strength
agent
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Pending
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CN 200910220168
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Chinese (zh)
Inventor
梁克民
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Shenyang University of Technology
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Shenyang University of Technology
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Priority to CN 200910220168 priority Critical patent/CN102079641A/en
Publication of CN102079641A publication Critical patent/CN102079641A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

本发明提供了一种新的复合混凝土早强剂，本发明与现有技术相比，具有下列优点：低成本、原材料易得、无毒无害，对使用的环境无污染，抗渗、抗炭化、防冻、加快水泥的水化反应，明显提高混凝土的各龄期的抗压强度，有效阻止氯离子对钢筋的腐蚀作用，促进混凝土的终凝，减少混凝土初终凝时间间隔。本发明是由早强组分、减水组分、稳定剂、调节剂组成。The invention provides a new composite concrete early strength agent. Compared with the prior art, the invention has the following advantages: low cost, easy to obtain raw materials, non-toxic and harmless, no pollution to the environment used, impermeability, anti-corrosion Carbonization, antifreeze, speed up the hydration reaction of cement, significantly improve the compressive strength of concrete at all ages, effectively prevent the corrosion of steel bars by chloride ions, promote the final setting of concrete, and reduce the time interval between initial and final setting of concrete. The invention is composed of early strength components, water-reducing components, stabilizers and regulators.

Description

一种复合混凝土早强剂 A composite concrete early strength agent

技术领域：本发明涉及一种复合混凝土早强剂，用于建筑业混凝土施工，提高混凝土早后期强度和缩短硬化时间。Technical field: The present invention relates to a composite concrete early strength agent, which is used for concrete construction in the building industry to improve the early and late strength of concrete and shorten the hardening time.

背景技术：随着经济的迅速发展，对混凝土的要求也越来越高。为满足施工的高标准要求。现在，混凝土外加剂不断的向高效、多功能和复合化的方向发展。采用外加剂能够显著改善混凝土的各种理化指标。如提高混凝土的稳定性、匀质性、不离析、不泌水、早强、高强等。早期的早强剂大部分由硫酸亚铁、工业盐、粉煤灰、碳酸钙粉配置而成，可以提高混凝土的早期强度，但没有同时兼顾到后期强度的问题。研究一种既可以提高混凝土的早期强度，又可以提高后期强度的早强剂，是建筑业的迫切需要。Background technology: With the rapid development of the economy, the requirements for concrete are getting higher and higher. In order to meet the high standard requirements of construction. Now, concrete admixtures are constantly developing in the direction of high efficiency, multi-function and compounding. The use of admixtures can significantly improve various physical and chemical indicators of concrete. Such as improving the stability, homogeneity, non-segregation, non-bleeding, early strength and high strength of concrete. Most of the early strength accelerators were composed of ferrous sulfate, industrial salt, fly ash, and calcium carbonate powder, which could improve the early strength of concrete, but did not take into account the problem of later strength. It is an urgent need for the construction industry to study an early strength agent that can improve both the early strength and the later strength of concrete.

提供一种不但能够大幅度提高混凝土的早期强度和后期强度，还可以优化混凝土的各种理化指标的混凝土早强剂。是本发明的目的。The invention provides a concrete early strength agent which can not only greatly improve the early strength and later strength of concrete, but also optimize various physical and chemical indexes of concrete. is the purpose of the present invention.

发明内容：本发明提供了一种新的复合混凝土早强剂，本发明与现有技术相比，具有下列优点：低成本、原材料易得、无毒无害，对使用的环境无污染，抗渗、抗炭化、防冻、加快水泥的水化反应，明显提高混凝土的各龄期的抗压强度，有效阻止氯离子对钢筋的腐蚀作用，促进混凝土的终凝，减少混凝土初终凝时间间隔。Summary of the invention: The present invention provides a new composite concrete early strength agent. Compared with the prior art, the present invention has the following advantages: low cost, easy to obtain raw materials, non-toxic and harmless, no pollution to the environment used, and Penetration, anti-carbonization, antifreeze, speed up the hydration reaction of cement, significantly improve the compressive strength of concrete at all ages, effectively prevent the corrosion of steel bars by chloride ions, promote the final setting of concrete, and reduce the time interval between initial and final setting of concrete.

本发明是由早强组分、减水组分、稳定剂、调节剂组成。The invention is composed of early strength components, water-reducing components, stabilizers and regulators.

早强组分可以是硫酸镁、硫酸铝、硅酸钠，其中的一种、两种或三种；减水组分是萘磺酸甲醛缩合物；稳定剂可以是三乙醇胺，尿素、甲醛，其中的一种、两种或三种；调节剂是一乙醇胺。The early strength component can be magnesium sulfate, aluminum sulfate, sodium silicate, one, two or three of them; the water reducing component is naphthalenesulfonic acid formaldehyde condensate; the stabilizer can be triethanolamine, urea, formaldehyde, One, two or three of them; the regulator is monoethanolamine.

本发明各组成按质量比为：早强组分(5-70％)、减水组分(2-30％)、稳定剂(2-25％)、调节剂(1-25％)。The compositions of the present invention are: early strength component (5-70%), water-reducing component (2-30%), stabilizer (2-25%), regulator (1-25%) according to mass ratio.

具体实施方式1：硫酸镁(30％)、硫酸铝(40％)、萘磺酸甲醛缩合物(15％)、三乙醇胺(10％)、一乙醇胺(5％)。Embodiment 1: magnesium sulfate (30%), aluminum sulfate (40%), naphthalenesulfonic acid formaldehyde condensate (15%), triethanolamine (10%), monoethanolamine (5%).

具体实施方式2：硫酸镁(30％)、硅酸钠(40％)、萘磺酸甲醛缩合物(10％)、尿素(15％)、一乙醇胺(5％)。Embodiment 2: magnesium sulfate (30%), sodium silicate (40%), naphthalenesulfonic acid formaldehyde condensate (10%), urea (15%), monoethanolamine (5%).

具体实施方式3：硫酸铝(70％)、萘磺酸甲醛缩合物(10％)、三乙醇胺(15％)、一乙醇胺(5％)。Embodiment 3: aluminum sulfate (70%), naphthalenesulfonic acid formaldehyde condensation product (10%), triethanolamine (15%), monoethanolamine (5%).

具体实施方式4：硫酸镁(30％)、硫酸铝(20％)、硅酸钠(20％)、萘磺酸甲醛缩合物(10％)、尿素(15％)、一乙醇胺(5％)。Embodiment 4: Magnesium sulfate (30%), aluminum sulfate (20%), sodium silicate (20%), naphthalenesulfonic acid formaldehyde condensate (10%), urea (15%), monoethanolamine (5%) .

具体实施方式5：硫酸镁(20％)、硫酸铝(30％)、硅酸钠(20％)、萘磺酸甲醛缩合物(10％)、尿素(10％)、甲醛(5％)、一乙醇胺(5％)。Specific embodiment 5: magnesium sulfate (20%), aluminum sulfate (30%), sodium silicate (20%), naphthalenesulfonic acid formaldehyde condensate (10%), urea (10%), formaldehyde (5%), Monoethanolamine (5%).

具体实施方式6：硫酸镁(20％)、硫酸铝(30％)、硅酸钠(20％)、萘磺酸甲醛缩合物(10％)、三乙醇胺(5％)尿素(5％)、甲醛(5％)、一乙醇胺(5％)。Specific embodiment 6: magnesium sulfate (20%), aluminum sulfate (30%), sodium silicate (20%), naphthalenesulfonic acid formaldehyde condensate (10%), triethanolamine (5%) urea (5%), Formaldehyde (5%), Monoethanolamine (5%).

Claims (6)

1.一种新的复合混凝土早强剂，其特征在于：早强剂由早强组分、减水组分、稳定剂、调节剂组成。1. A new composite concrete early-strength agent is characterized in that: the early-strength agent is made up of an early-strength component, a water-reducing component, a stabilizing agent, and a regulator. 2.按权利要求1所述的早强剂，其特征在于：早强组分可以是硫酸镁、硫酸铝、硅酸钠，其中的一种、两种或三种。2. The early strength agent according to claim 1, characterized in that: the early strength component can be magnesium sulfate, aluminum sulfate, sodium silicate, one, two or three of them. 3.按权利要求1-2所述的早强剂，其特征在于：减水组分是萘磺酸甲醛缩合物。3. The accelerator according to claim 1-2, characterized in that: the water-reducing component is naphthalenesulfonic acid formaldehyde condensate. 4.按权利要求1-3所述的早强剂，其特征在于：稳定剂可以是三乙醇胺，尿素、甲醛，其中的一种、两种或三种。4. The strength accelerator according to claim 1-3, characterized in that: the stabilizing agent can be triethanolamine, urea, formaldehyde, one, two or three of them. 5.按权利要求1-4所述的早强剂，其特征在于所用调节剂是一乙醇胺。5. according to the described early strengthening agent of claim 1-4, it is characterized in that used regulator is monoethanolamine. 6.按权利要求1-5所述的早强剂，其特征在于各组成按质量比为：早强组分(5-70％)、减水组分(2-30％)、稳定剂(2-25％)、调节剂(1-25％)。6. by the described early strength agent of claim 1-5, it is characterized in that each composition is by mass ratio: early strength component (5-70%), water-reducing component (2-30%), stabilizer ( 2-25%), modifiers (1-25%).
CN 200910220168 2009-11-26 2009-11-26 Compound early strength agent for concrete Pending CN102079641A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102617066A (en) * 2012-03-12 2012-08-01 清华大学 Liquid accelerator for calcium-containing aluminosilicate cementing material and preparation method for liquid accelerator
CN104402286A (en) * 2014-11-11 2015-03-11 安徽创业机电设备有限公司 Concrete early strong agent and preparation method thereof
CN104710128A (en) * 2015-03-11 2015-06-17 东南大学 Super early strength accelerator for portland cement concrete
CN105060756A (en) * 2015-08-07 2015-11-18 马鞍山十七冶工程科技有限责任公司 Steel skeleton light board early strength agent and preparation method thereof
CN105503006A (en) * 2015-12-30 2016-04-20 卓达新材料科技集团威海股份有限公司 Early strength agent used for ordinary Portland cement fiberboards
CN105503020A (en) * 2015-12-30 2016-04-20 卓达新材料科技集团威海股份有限公司 Early strength agent used for ordinary Portland cement fiberboards
CN108249845A (en) * 2017-12-13 2018-07-06 镇江建科建设科技有限公司 A kind of Organic-inorganic composite early strength agent and the self-compacting concrete prepared using the early strength agent
CN108892413A (en) * 2018-09-12 2018-11-27 十堰市郧阳区成林工贸有限责任公司 Concrete complex accelerator and preparation method thereof
CN109336443A (en) * 2018-09-26 2019-02-15 南通久拓混凝土有限公司 A kind of concrete potent dose and its preparation process

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102617066A (en) * 2012-03-12 2012-08-01 清华大学 Liquid accelerator for calcium-containing aluminosilicate cementing material and preparation method for liquid accelerator
CN102617066B (en) * 2012-03-12 2014-01-01 清华大学 Liquid quick-setting agent for calcium-aluminosilicate gelling material and preparation method thereof
CN104402286A (en) * 2014-11-11 2015-03-11 安徽创业机电设备有限公司 Concrete early strong agent and preparation method thereof
CN104710128A (en) * 2015-03-11 2015-06-17 东南大学 Super early strength accelerator for portland cement concrete
CN105060756A (en) * 2015-08-07 2015-11-18 马鞍山十七冶工程科技有限责任公司 Steel skeleton light board early strength agent and preparation method thereof
CN105503006A (en) * 2015-12-30 2016-04-20 卓达新材料科技集团威海股份有限公司 Early strength agent used for ordinary Portland cement fiberboards
CN105503020A (en) * 2015-12-30 2016-04-20 卓达新材料科技集团威海股份有限公司 Early strength agent used for ordinary Portland cement fiberboards
CN105503020B (en) * 2015-12-30 2018-01-30 卓达新材料科技集团威海股份有限公司 A kind of early strength agent for Portland cement fiberboard
CN108249845A (en) * 2017-12-13 2018-07-06 镇江建科建设科技有限公司 A kind of Organic-inorganic composite early strength agent and the self-compacting concrete prepared using the early strength agent
CN108892413A (en) * 2018-09-12 2018-11-27 十堰市郧阳区成林工贸有限责任公司 Concrete complex accelerator and preparation method thereof
CN109336443A (en) * 2018-09-26 2019-02-15 南通久拓混凝土有限公司 A kind of concrete potent dose and its preparation process
CN109336443B (en) * 2018-09-26 2021-06-25 南通盛茂建材科技有限公司 Concrete strong-effect agent and preparation process thereof

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Application publication date: 20110601