CN101250043B - 机场道面微细裂缝快速修补剂及其制备方法 - Google Patents
机场道面微细裂缝快速修补剂及其制备方法 Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
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- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims abstract description 4
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- CDULGHZNHURECF-UHFFFAOYSA-N 2,3-dimethylaniline 2,4-dimethylaniline 2,5-dimethylaniline 2,6-dimethylaniline 3,4-dimethylaniline 3,5-dimethylaniline Chemical group CC1=CC=C(N)C(C)=C1.CC1=CC=C(C)C(N)=C1.CC1=CC(C)=CC(N)=C1.CC1=CC=C(N)C=C1C.CC1=CC=CC(N)=C1C.CC1=CC=CC(C)=C1N CDULGHZNHURECF-UHFFFAOYSA-N 0.000 claims description 7
- 235000013312 flour Nutrition 0.000 claims description 5
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- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims 2
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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
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Abstract
本发明涉及一种机场道面微细裂缝快速修补剂及其制备方法,属新型化学建材技术领域。按质量份数由粘度为100mPa·s-200mPa·s的甲基丙烯酸甲酯预聚体100份;二甲基苯胺1.0-2.0份;比表面积大于400m 2/kg的无机改性剂,其中含水泥5-16份,SiC粉1.0-5.0份,石墨粉0.1-0.5份,石粉3-12份;抗氧化剂1010 0.1-0.5份组成。本发明的修补剂具有粘度低(150mPa·s-300mPa·s)、可灌性好、粘结强度高、固化速度快、收缩小,且生产和使用方便的优点。
Description
技术领域
本发明涉及一种主要用于机场道面(包括跑道、滑行道、停机坪等)结构微细裂缝的快速修补剂,属化学建筑材料领域。
背景技术
机场道面结构在长期的使用过程中,时常要经受不同飞机轴载的冲击、疲劳和磨损以及自然环境的冻融循环、干湿交替和腐蚀等作用,会出现大量宽度小于0.2mm的微细裂缝,如果不及时进行修补,在各种劣化因素的反复作用下,裂缝会不断扩展、加剧,出现掉角、断板等现象,降低道面结构的使用寿命、影响了飞机的起降。目前,关于机场道面微细裂缝修补材料的研究与应用鲜有报道,主要是集中在公路道面和建筑物结构物以及较大裂缝的修补上。常用的修补材料主要有三类:第一类,无机修补材料,主要由普通水泥和集料配制的砂浆和混凝土以及使用特种水泥(如高铝水泥、硫铝酸盐水泥、氟铝酸盐水泥)和功能组分(如微膨胀组分、减水组分等)配制的水泥基材料;第二类,无机材料和有机材料复合的聚合物修补材料,主要有聚合物(如丙烯酸乳液、丁苯乳液等)改性砂浆及混凝土等;第三类,有机高分子材料,如环氧树脂、聚氨酯和丙烯酸等各种树脂材料,主要用来修补沥青混凝土道面的开裂。现有的修补材料或存在与旧混凝土粘结强度低、固化时间长、只适用于大面积破损修补等缺点,或存在收缩变形大、粘度高、脆性大等不足,很难满足机场道面微细裂缝的修补工艺以及修补后能快速放飞的要求。
发明内容
本发明的目的是在于提供一种粘度低(150mPa·s-300mPa·s)、可灌性好、粘结强度高、固化速度快、收缩小,且生产和使用方便的机场道面微细裂缝快速修补剂及制备方法。
一种机场道面微细裂缝快速修补剂,其特征在于其质量份数为:
组分1:甲基丙烯酸甲酯预聚体,粘度为100mPa·s-200mPa·s,100份;
组分2:二甲基苯胺,1.0-2.0份;
组分3:无机改性剂,其比表面积大于400m2/kg,含水泥5-16份,SiC粉1.0-5.0份,石墨粉0.1-0.5份,石粉3-12份;
组分4:抗氧化剂1010,0.1-0.5份。
一种机场道面微细裂缝快速修补剂的制备方法,其特征在于:
(1)用常规方法制备甲基丙烯酸甲酯预聚体,将其粘度控制在100mPa·s-200mPa·s时,将反应物取出并迅速冷却至常温备用;
(2)将第(1)步制得的甲基丙烯酸甲酯预聚体,与二甲基苯胺、无机改性剂和抗氧化剂1010,按以下质量份数均匀拌合即可:
组分1:甲基丙烯酸甲酯预聚体,100份;
组分2:二甲基苯胺,1.0-2.0份;
组分3:无机改性剂,其比表面积大于400m2/kg,含水泥5-16份,SiC粉1.0-5.0份,石墨粉0.1-0.5份,石粉3-12份;
组分4:抗氧化剂1010,0.1-0.5份。
本发明中的甲基丙烯酸甲酯预聚体,是快速修补剂的主体材料,渗透性强,通过不饱和双键的二次聚合固化,产生粘结强度,达到裂缝修补的效果。将甲基丙烯酸甲酯预聚体的粘度控制在100mPa·s-200mPa·s,确保了快速修补剂的初始粘度约为150mPa·s-300mPa·s。将甲基丙烯酸甲酯预聚体作为快速修补剂的一个组分,不仅可减小聚合物反应体系在后期的体积收缩,还便于本发明能方便、快捷地施工,提高修补效率。二甲基苯胺是固化促进剂,加速甲基丙烯酸甲酯预聚体的固化反应,实现快速修补的功能要求。无机改性剂系由水泥、SiC粉、石墨粉和石粉按一定比例组成,不仅可减少本发明的生产成本,更能改善和提高快速修补剂的抗冲击、收缩和力学性能。无机改性剂比表面积大于400m2/kg,有利于提高修补剂的匀质性,并易于渗入微细裂缝中。抗氧化剂1010是为了提高修补剂在大气环境中的抗老化性能。
Claims (4)
1.一种机场道面微细裂缝快速修补剂,其特征在于其质量份数为:
组分1:甲基丙烯酸甲酯预聚体,粘度为100mPa·s-200mPa·s,100份;
组分2:二甲基苯胺,1.0-2.0份;
组分3:无机改性剂,其比表面积大于400m2/kg,含水泥5-16份,SiC粉1.0-5.0份,石墨粉0.1-0.5份,石粉3-12份;
组分4:抗氧化剂1010,0.1-0.5份。
2.如权利要求1所述的机场道面微细裂缝快速修补剂,其特征在于:所述水泥为42.5级及以上的硅酸盐水泥,
3.一种机场道面微细裂缝快速修补剂的制备方法,其特征在于:
(1)用常规方法制备甲基丙烯酸甲酯预聚体,将其粘度控制在100mPa·s-200mPa·s时,将反应物取出并迅速冷却至常温备用;
(2)将第(1)步制得的甲基丙烯酸甲酯预聚体,与二甲基苯胺、无机改性剂和抗氧化剂1010,按以下质量份数均匀拌合即可:
组分1:甲基丙烯酸甲酯预聚体,100份;
组分2:二甲基苯胺,1.0-2.0份;
组分3:无机改性剂,其比表面积大于400m2/kg,含水泥5-16份,SiC粉1.0-5.0份,石墨粉0.1-0.5份,石粉3-12份;
组分4:抗氧化剂1010,0.1-0.5份。
4.根据权利要求3所述的机场道面微细裂缝快速修补剂的制备方法,其特征在于所述的制备甲基丙烯酸甲酯预聚体的方法为:按质量份数将甲基丙烯酸甲酯100份、过氧化二苯甲酰0.6-0.7份、邻苯二甲酸二丁酯20-40份,在75-80℃水浴中本体聚合约30-40分钟,当其粘度增长到100mPa·s-200mPa·s时,将反应物取出并迅速在冰水中冷却至常温,备用。
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CN101786831B (zh) * | 2010-01-19 | 2012-09-05 | 南京航空航天大学 | 低粘度高性能混凝土结构快速修补剂 |
CN105218058A (zh) * | 2015-11-04 | 2016-01-06 | 江苏名和集团有限公司 | 一种混凝土速硬灌浆修补剂 |
CN106479299A (zh) * | 2016-10-19 | 2017-03-08 | 天津佰思特新材料科技有限公司 | 一种新型混凝土快速表面修复剂及施工方法 |
CN111747713A (zh) * | 2020-07-30 | 2020-10-09 | 贵州省交通规划勘察设计研究院股份有限公司 | 早强型自流平混凝土道面快速修补材料及其制备方法 |
CN113045255A (zh) * | 2021-04-08 | 2021-06-29 | 王勇 | 防冻耐高温混凝土修补剂及其制备方法 |
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