CN105907113A - 一种阳离子复合改性沥青的制备方法 - Google Patents

一种阳离子复合改性沥青的制备方法 Download PDF

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CN105907113A
CN105907113A CN201610429987.8A CN201610429987A CN105907113A CN 105907113 A CN105907113 A CN 105907113A CN 201610429987 A CN201610429987 A CN 201610429987A CN 105907113 A CN105907113 A CN 105907113A
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刘谦
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TIANJIN KANGYUAN ENGINEERING MACHINERY Co Ltd
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Abstract

本发明提供一种阳离子复合改性沥青的制备方法,首先将沥青加热至60‑100℃,将表面活性剂加入沥青中,搅拌10‑30min,得到改性沥青;将水加热至40‑60℃,然后依次将改性剂、调和剂和乳化剂加入水中,搅拌5‑10min后得到混合皂液;将改性沥青和混合皂液混合机械搅拌30‑40min,搅拌温度为80‑100℃,搅拌均匀后降温至20‑25℃即得到阳离子复合改性沥青。本发明方法原料易得,配制工艺简单,路用性能优良,各项技术指标均明显优于普通的乳化改性沥青。

Description

一种阳离子复合改性沥青的制备方法
技术领域
本发明涉及路面整修材料技术领域,更具体地说涉及一种阳离子复合改性沥青的制备方法。
背景技术
目前公路建设中普遍用作超薄磨耗层粘层油以及石屑封层的乳化沥青大都是快裂型的普通乳化改性沥青。超薄磨耗层用粘层油要求乳化沥青不单单起到粘结表面层与下承层的作用,更重要的是可以部分进入上部沥青混合料中,起到封层作用。然而普通乳化改性沥青往往很难满足实际的交通和气候条件,其路用性能较差。普通的乳化改性沥青用作超薄磨耗层粘层油或石屑封层粘结材料时,往往由于其粘度很小,喷洒量较大时会出现流淌,使乳化改性沥青不能或极少量进入热拌混合料中,导致封层效果很差,路面渗水严重,通车后不久便会出现推移、剥离、坑槽、裂缝等路面病害。即使有些乳化改性沥青的粘度满足使用要求,但其破乳后的改性沥青高温、低温、弹性恢复等指标达不到超薄磨耗层技术要求,最终仍会出现上述路面病害。
发明内容
本发明克服了现有技术中的不足,提供了一种阳离子复合改性沥青的制备方法。
本发明的目的通过下述技术方案予以实现。
一种阳离子复合改性沥青的制备方法,按照下述步骤进行:
步骤1,首先将50-70重量份沥青加热至60-100℃,将20-40重量份表面活性剂加入沥青中,搅拌10-30min,得到改性沥青;
步骤2,将15-25重量份水加热至40-60℃,然后依次将1-5重量份改性剂、2-4重量份调和剂和5-10重量份乳化剂加入水中,搅拌5-10min后得到混合皂液;
步骤3,将步骤1制备得到的改性沥青和步骤2制备得到的混合皂液混合机械搅拌30-40min,搅拌温度为80-100℃,搅拌均匀后降温至20-25℃即得到阳离子复合改性沥青。
在所述步骤1中,沥青的用量为55-68重量份,表面活性剂的用量为24-35重量份,搅拌温度为70-90℃,表面活性剂为tween-80、tween-60、十六烷基三甲基氯化铵、十六烷基三甲基溴化铵中的一种或一种以上的混合物。
在所述步骤2中,水的用量为17-21重量份,加热温度为50-55℃,改性剂的用量为2-4重量份,调和剂的用量为3-4重量份,乳化剂的用量为6-8重量份,改性剂为环氧树脂、聚氨酯胶乳、聚丙烯酸酯胶乳、天然胶乳、聚乙酸乙烯酯胶乳、丁基橡胶胶乳中的一种或一种以上的混合物,调和剂为脂肪酸下脚料、石油炼制减压蒸馏侧线油或润滑油糠醛精制抽出油,搅拌时间为6-8min。
在所述步骤3中,机械搅拌的时间为32-36min,搅拌温度为85-90℃。
本发明的有益效果为:是对微裂地面裂缝的封堵更致密,在微裂地面裂缝表面的吸附能力更强,可在地面裂缝表面不渗透隔层,防止表面的雨水等向地层渗透,延长路面使用时间;本发明方法原料易得,配制工艺简单,路用性能优良,各项技术指标均明显优于普通的乳化改性沥青,解决了常用超薄磨耗层用粘层油粘结效果不好、石屑封层易泛油和强度低(尤其是低温抗裂性能)的技术问题,用作粘层油时可以明显提高层间粘结力,用于石屑封层时可以明显提高封层强度及其抵抗变形的能力,具有很好的应用前景。
具体实施方式
下面通过具体的实施例对本发明的技术方案作进一步的说明。
一种阳离子复合改性沥青的制备方法,按照下述步骤进行:
步骤1,首先将沥青加热至60-100℃,将表面活性剂加入沥青中,搅拌10-30min,得到改性沥青;
步骤2,将水加热至40-60℃,然后依次将改性剂、调和剂和乳化剂加入水中,搅拌5-10min后得到混合皂液;
步骤3,将步骤1制备得到的改性沥青和步骤2制备得到的混合皂液混合机械搅拌30-40min,搅拌温度为80-100℃,搅拌均匀后降温至20-25℃即得到阳离子复合改性沥青。
各个实施例中物料加入量如下表所示:
是对微裂地面裂缝的封堵更致密,在微裂地面裂缝表面的吸附能力更强,可在地面裂缝表面不渗透隔层,防止表面的雨水等向地层渗透,延长路面使用时间;本发明方法原料易得,配制工艺简单,路用性能优良,各项技术指标均明显优于普通的乳化改性沥青,解决了常用超薄磨耗层用粘层油粘结效果不好、石屑封层易泛油和强度低(尤其是低温抗裂性能)的技术问题,用作粘层油时可以明显提高层间粘结力,用于石屑封层时可以明显提高封层强度及其抵抗变形的能力,具有很好的应用前景。
以上对本发明做了示例性的描述,应该说明的是,在不脱离本发明的核心的情况下,任何简单的变形、修改或者其他本领域技术人员能够不花费创造性劳动的等同替换均落入本发明的保护范围。

Claims (4)

1.一种阳离子复合改性沥青的制备方法,其特征在于:按照下述步骤进行:
步骤1,首先将50-70重量份沥青加热至60-100℃,将20-40重量份表面活性剂加入沥青中,搅拌10-30min,得到改性沥青;
步骤2,将15-25重量份水加热至40-60℃,然后依次将1-5重量份改性剂、2-4重量份调和剂和5-10重量份乳化剂加入水中,搅拌5-10min后得到混合皂液;
步骤3,将步骤1制备得到的改性沥青和步骤2制备得到的混合皂液混合机械搅拌30-40min,搅拌温度为80-100℃,搅拌均匀后降温至20-25℃即得到阳离子复合改性沥青。
2.根据权利要求1所述的一种阳离子复合改性沥青的制备方法,其特征在于:在所述步骤1中,沥青的用量为55-68重量份,表面活性剂的用量为24-35重量份,搅拌温度为70-90℃,表面活性剂为tween-80、tween-60、十六烷基三甲基氯化铵、十六烷基三甲基溴化铵中的一种或一种以上的混合物。
3.根据权利要求1所述的一种阳离子复合改性沥青的制备方法,其特征在于:在所述步骤2中,水的用量为17-21重量份,加热温度为50-55℃,改性剂的用量为2-4重量份,调和剂的用量为3-4重量份,乳化剂的用量为6-8重量份,改性剂为环氧树脂、聚氨酯胶乳、聚丙烯酸酯胶乳、天然胶乳、聚乙酸乙烯酯胶乳、丁基橡胶胶乳中的一种或一种以上的混合物,调和剂为脂肪酸下脚料、石油炼制减压蒸馏侧线油或润滑油糠醛精制抽出油,搅拌时间为6-8min。
4.根据权利要求1所述的一种阳离子复合改性沥青的制备方法,其特征在于:在所述步骤3中,机械搅拌的时间为32-36min,搅拌温度为85-90℃。
CN201610429987.8A 2016-06-15 2016-06-15 一种阳离子复合改性沥青的制备方法 Pending CN105907113A (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109535751A (zh) * 2018-12-27 2019-03-29 山东高速建设材料有限公司 应力吸收层用高固含量乳化沥青及其制备和施工方法
CN110105968A (zh) * 2019-06-18 2019-08-09 大连地拓环境科技有限公司 一种高陡边坡喷播用稳定剂及其制备方法
CN113025071A (zh) * 2021-03-17 2021-06-25 山西黄河前沿新材料研究院有限公司 一种厂拌冷再生用高掺量sbs改性乳化沥青及其制备方法

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US20140076199A1 (en) * 2012-09-14 2014-03-20 Barry Payne Cationic minimal tracking asphalt emulsion
CN104387780A (zh) * 2014-05-23 2015-03-04 江苏苏博特新材料股份有限公司 一种高渗透性的废旧沥青混合料冷再生用乳液及其制备方法

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US20140076199A1 (en) * 2012-09-14 2014-03-20 Barry Payne Cationic minimal tracking asphalt emulsion
CN104387780A (zh) * 2014-05-23 2015-03-04 江苏苏博特新材料股份有限公司 一种高渗透性的废旧沥青混合料冷再生用乳液及其制备方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109535751A (zh) * 2018-12-27 2019-03-29 山东高速建设材料有限公司 应力吸收层用高固含量乳化沥青及其制备和施工方法
CN110105968A (zh) * 2019-06-18 2019-08-09 大连地拓环境科技有限公司 一种高陡边坡喷播用稳定剂及其制备方法
CN113025071A (zh) * 2021-03-17 2021-06-25 山西黄河前沿新材料研究院有限公司 一种厂拌冷再生用高掺量sbs改性乳化沥青及其制备方法

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Application publication date: 20160831