CN1061328C - 利用超细粉煤灰复合混凝土外加剂的制造方法 - Google Patents

利用超细粉煤灰复合混凝土外加剂的制造方法 Download PDF

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CN1061328C
CN1061328C CN97101189A CN97101189A CN1061328C CN 1061328 C CN1061328 C CN 1061328C CN 97101189 A CN97101189 A CN 97101189A CN 97101189 A CN97101189 A CN 97101189A CN 1061328 C CN1061328 C CN 1061328C
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flyash
concrete
superfined flyash
water
superfined
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Expired - Fee Related
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CN97101189A
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CN1193616A (zh
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唐明
李志坚
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SHENYANG LIGHT RAILWAY AND BUILDING AND LAND ESTATE DEVELOPMENT Co
SHENYANG CONSTRUCTION ENGINEERING COLLEGE
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SHENYANG LIGHT RAILWAY AND BUILDING AND LAND ESTATE DEVELOPMENT Co
SHENYANG CONSTRUCTION ENGINEERING COLLEGE
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Priority to CN97101189A priority Critical patent/CN1061328C/zh
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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
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302—Water reducers
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/65—Water proofers or repellants
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00146—Sprayable or pumpable mixtures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

本发明提供一种利用超细粉煤灰复合制作混凝土外加剂的方法，用超细磨将粉煤灰磨至比表面积大于1.0m2/g，用萘系减水剂、木钙、超细灰按1∶0.2～0.5∶8～25的比例制成混凝土泵送剂；用萘系减水剂、超细粉煤灰按1∶8～25的比例配制高强混凝土专用外加剂；用氧化铝、甲基纤维素、减水剂、超细粉煤灰按1∶3～5∶3～5∶20～50，配制粉煤灰防水剂。适用于多种建筑工程和建设工程。

Description

利用超细粉煤灰复合混凝土外加剂的制造方法
本发明涉及一种系列混凝土外加剂，特别是利用工业废渣粉煤灰，经高技术开发，配制混凝土复合外加剂，广泛用建筑、交通、水利、矿山、冶金等行业的各种混凝土工程。
工业废渣粉煤灰的处置和利用是带有全球性的重大课题，在发达国家粉煤灰的开发利用引起了足够重视，有筑路材料、混凝土和砂浆的掺和料、生产水泥、塑料填料、提取有用元素、烧制陶瓷、生产复合肥等。但对粉煤灰进行超细加工应用的却很少。
本发明的目的在于将粉煤灰进行超细加工、表面活化，激发粉煤灰的活性，并将粉煤灰作为活性载体，配制复合外加剂。可广泛用于各种混凝土工程。
本发明的目的是通过以下技术方案来实现的：
利用超磨细粉煤灰为主料，水泥混凝土外加剂配制成粉煤灰复合外加剂，其特征在于用振动磨或气流磨等超细磨将粉煤灰磨至比表面积大于1.0m2/g，与减水剂及其它水泥混凝土外加剂复合，根据不同功能要求，制成多种混凝土外加剂；泵送剂由萘系高效减水剂、木钙减水剂、超细粉煤灰组成，其配制比例依次为1∶0.2～0.5∶8～25，用混凝土机混配均匀；配制高强混凝土专用粉煤灰外加剂，用萘系高效减水剂、超细粉煤灰按1∶8～25的比例，用混料机混配均匀；用氧化铝、甲基纤维素、减水剂、超细粉煤灰按1∶3～5∶3～5∶20～50，准确计量后用混料机混配均匀。
下面举例说明：
实例1：将萘系高效减水剂、木钙、超细粉煤灰按比例1∶0.5∶12，配制成粉煤灰泵送剂。按水泥用量10％掺入混凝土中(同时取代10％水泥)，其泵送混凝土性能如下：
№     坍落度(mm)     抗压强度(Mpa)
初始  0.5小时 1小时 3天 7天 28天 90天
    12     200220     185190  170175  28.245.8  45.383.5  59.779.6  70.888.1
注：№.1水泥用量450kg，砂率0.40，水灰比为0.35,425#
       矿渣水泥
№.2水泥用量500kg，砂率0.40，水灰比为0.30,525#
      普硅水泥
本发明的高强混凝土专用粉煤灰外加剂，用萘系高效减水剂与超细粉煤灰按1∶8-25的比例用混料机均匀混配。根据粉煤灰的细度和减水剂的掺量可配制多种强度等级的高强混凝土和高强泵送混凝土。
实例2：将粉煤灰超细加工至比表面积为1.15m2/g，萘系高效减水剂按1∶10的比例混配均匀。将外加剂按水泥用量的12％加入到混凝土中。

Claims (4)

1．利用超细粉煤灰复合混凝土外加剂的制造方法，利用超磨细粉煤灰为主料，复合不同功能的水泥混凝土外加剂配制成粉煤灰复合外加剂，其特征在于用振动磨或气流磨等超细磨将粉煤灰磨至比表面积大于1.0m2/g，与减水剂及其它水泥混凝土外加剂复合制成多种混凝土外加剂。
2．用权利要求1所述的方法加工超细粉煤灰配制粉煤灰泵送剂，其特征在于：泵送剂由萘系高效减水剂、木钙减水剂、超细粉煤灰组成，其配制比例依次为1∶0.2～0.5∶8～25，用混凝土机混配均匀。
3．按照权利要求1所述的超细粉煤灰复合外加剂制作方法，配制高强混凝土专用粉煤灰外加剂，其特征在于：用萘系高效减水剂、超细粉煤灰按1∶8～25的比例，用混料机混配均匀。
4．用权利要求1所述的方法加工超细粉煤灰，配制粉煤灰防水剂，其特征在于用氧化铝、甲基纤维素、减水剂、超细粉煤灰按1∶3～5∶3～5∶20～50，准确计量后用混料机混配均匀。
CN97101189A 1997-03-18 1997-03-18 利用超细粉煤灰复合混凝土外加剂的制造方法 Expired - Fee Related CN1061328C (zh)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1373157A4 (en) * 2001-03-02 2006-10-11 James Hardie Int Finance Bv ADDITIVE FOR WATER-FREE SOFT INSULATION
CN1331799C (zh) * 2006-04-24 2007-08-15 蒋德双 混凝土泵送剂和制备方法
US7658794B2 (en) 2000-03-14 2010-02-09 James Hardie Technology Limited Fiber cement building materials with low density additives
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
US8209927B2 (en) 2007-12-20 2012-07-03 James Hardie Technology Limited Structural fiber cement building materials
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element

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Publication number Priority date Publication date Assignee Title
CN1091082C (zh) * 1999-11-30 2002-09-18 施无我 一种高抗渗水泥外加剂
CN104370505A (zh) * 2013-08-16 2015-02-25 山西华通蓝天环保有限公司 高掺量活化粉煤灰改性绿色混凝土及其制作方法
CN103588416B (zh) * 2013-11-04 2015-09-09 甘肃省交通规划勘察设计院有限责任公司 一种硫铝酸盐水泥混凝土泵送剂
CN112125609B (zh) * 2020-09-20 2022-03-25 河南理工大学 一种深热井巷热害隔离材料及其制备方法

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Publication number Priority date Publication date Assignee Title
CN1145884A (zh) * 1995-09-21 1997-03-26 上海市建筑科学研究院 粉煤灰矿物减水剂

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混凝土实用手册 1987.5.1 中国建筑工业出版社 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7658794B2 (en) 2000-03-14 2010-02-09 James Hardie Technology Limited Fiber cement building materials with low density additives
US7727329B2 (en) 2000-03-14 2010-06-01 James Hardie Technology Limited Fiber cement building materials with low density additives
US8182606B2 (en) 2000-03-14 2012-05-22 James Hardie Technology Limited Fiber cement building materials with low density additives
US8603239B2 (en) 2000-03-14 2013-12-10 James Hardie Technology Limited Fiber cement building materials with low density additives
EP1373157A4 (en) * 2001-03-02 2006-10-11 James Hardie Int Finance Bv ADDITIVE FOR WATER-FREE SOFT INSULATION
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
CN1331799C (zh) * 2006-04-24 2007-08-15 蒋德双 混凝土泵送剂和制备方法
US8209927B2 (en) 2007-12-20 2012-07-03 James Hardie Technology Limited Structural fiber cement building materials

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