CN106830776A - 一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管及其制备方法 - Google Patents

一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管及其制备方法 Download PDF

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CN106830776A
CN106830776A CN201611157969.5A CN201611157969A CN106830776A CN 106830776 A CN106830776 A CN 106830776A CN 201611157969 A CN201611157969 A CN 201611157969A CN 106830776 A CN106830776 A CN 106830776A
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sewer pipe
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张振华
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    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/29—Frost-thaw resistance

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Abstract

本发明公开了一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管及其制备方法，其特征在于，以粉煤灰、矿渣粉、偏高岭土、石膏、硫酸钠、萘系高效减水剂、砂、碎石、双酚A型环氧树脂E‑44、过氧化苯甲酰、丙烯酸、N,N‑二甲基乙醇胺、有机蒙脱土、水泥、钢纤维、煅烧硅藻土、钢筋、ZnCl2、二水石膏、引气剂等为原料。本发明通过接枝共聚的方法制备了水性环氧树脂，得到聚合物与水泥基体材料互穿的网络结构；以有机蒙脱土为填料，采用高聚物溶液插层法将其添加到水性环氧树脂基体中，制备出水性环氧树脂/蒙脱土纳米复合材料；对钢纤维混凝土拌合物施加匀强磁场，制备出单向分布的钢纤维混凝土，纤维利用率高，增强效果好。

Description

一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管及其制备 方法
技术领域
本发明涉及一种钢筋混凝土排水管的制备方法，具体涉及一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管及其制备方法。
背景技术
随着城市建设的发展，开始兴建污水处理厂，大量的工业废水和生活污水需要通过排水管进入污水处理厂，而废水和污水常常含有酸性或其它腐蚀性物质且浓度不同，这就要求排水管具有较强的耐腐蚀性能。
刘远祥在《碱激发矿渣粉煤灰混凝土性能的研究及在排水管中的应用》一文中，以粉煤灰、矿渣、碱性激发剂、FKJ专用外加剂、砂石骨料等为原料，制备了碱矿渣粉煤灰混凝土；喂料时先投入石子，然后投入粉料，再投入砂子，最后加入液体激发剂和水，用悬辊法制管工艺生产了耐酸、耐碱腐蚀混凝土排水管；混凝土排水管采用蒸汽养护，蒸汽养护制度分为静停、升温、恒温、降温四个阶段。但所得排水管存在耐腐蚀性能不足。
本发明添加了偏高岭土，在混凝土中具有良好的填充效应和火山灰效应；本发明以环氧树脂、丙烯酸为原料，加入成盐剂N,N-二甲基乙醇胺，通过接枝共聚的方法制备了水性环氧树脂，应用于改性水泥混凝土中，得到聚合物与水泥基体材料互穿的网络结构；本发明以有机蒙脱土为填料，采用高聚物溶液插层法将其添加到水性环氧树脂基体中，制备出水性环氧树脂/蒙脱土纳米复合材料；煅烧硅藻土具有比表面积高、颗粒尺寸细的特点，用来填充混凝土水泥基体内部孔隙，从而提高了混凝土基体的密实度、力学性能、抗渗抗冻性；对钢纤维混凝土拌合物施加匀强磁场，制备出单向分布的钢纤维混凝土，纤维利用率高，增强效果好；本发明通过加入ZnCl2、引气剂、二水石膏，提高了混凝土的密实度、改善其孔结构，降低了混凝土的碳化程度，提高了混凝土的抗碳化能力；得到一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管。
发明内容
本发明主要解决的技术问题是提供一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管及其制备方法，依照该工艺制备的钢筋混凝土排水管力学性能好、强度高、耐腐蚀性能好、抗碳化能力强。
本发明所要解决的技术问题采用以下的技术方案来实现：
粉煤灰8-12，矿渣粉13-17，偏高岭土3-5，石膏1-2，硫酸钠5-7，萘系高效减水剂1-3，砂15-18，碎石7-12，双酚A型环氧树脂E-44 4-6，过氧化苯甲酰4-6，丙烯酸3-5，N,N-二甲基乙醇胺1-3，有机蒙脱土3-6，水泥4-9，钢纤维4-7，煅烧硅藻土3-6，钢筋7-12，ZnCl2 2-3，二水石膏2-4，引气剂1-3，丙二醇甲醚、水适量。
一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管的制备方法，其特征在于，按以下步骤进行：
a. 将粉煤灰经机械磨细后与矿渣粉、ZnCl2、二水石膏、偏高岭土混合，搅
拌均匀得胶凝材料；
b. 将石膏、硫酸钠混合球磨均匀得激发剂，与萘系高效减水剂加入a中所得物料，再以2:4-6加入砂和水，搅拌得砂浆，加入粒径5-25mm的碎石，搅拌30-50min；
c. 将双酚A型环氧树脂E-44以1:3-5溶解于丙二醇甲醚，加入过氧化苯甲酰、丙烯酸，升温至105-115℃反应2-3h，搅拌下1:4-6加入N,N-二甲基乙醇胺和水，调pH为7-8，加入有机蒙脱土、引气剂，80-90℃反应1-2h，待用；
d. 将a、b、c中所得物料混合，加入水泥、钢纤维、煅烧硅藻土，搅拌均匀，对混合物施加匀强磁场；
e. 将钢筋处理得到钢筋骨架成型，将d中所得物料投入其中，启动悬辊制管机，悬辊成型、蒸汽养护、脱模，得到一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管。
本发明的反应机理如下：
（1）偏高岭土是一种高活性矿物掺合料，在混凝土中具有良好的填充效应和火山灰效应，能改善混凝土的显微结构、强度和耐久性。
（2）以环氧树脂、丙烯酸为原料，加入成盐剂N,N-二甲基乙醇胺，通过接枝共聚的方法制备了水性环氧树脂，应用于改性水泥混凝土中，得到聚合物与水泥基体材料互穿的网络结构，复合材料具有拉伸强度高、吸水率低，压缩强度损失小的特点。
（3）以有机蒙脱土为填料，采用高聚物溶液插层法将其添加到水性环氧树脂基体中，制备出水性环氧树脂/蒙脱土纳米复合材料，具有高韧性、抗冲击性、耐腐蚀性能强、力学性能好的特点。
（4）本发明通过加入ZnCl2、引气剂、二水石膏，提高了混凝土的密实度、改善其孔结构，降低了混凝土的碳化程度，提高了混凝土的抗碳化能力。
（5）煅烧硅藻土具有比表面积高、颗粒尺寸细的特点，用来填充混凝土水泥基体内部孔隙，从而提高了混凝土基体的密实度、力学性能、抗渗抗冻性。
（6）对钢纤维混凝土拌合物施加匀强磁场，钢纤维受到磁场作用，使得大部分钢纤维方向与磁场方向一致或接近，形成单向分布，制备出单向分布的钢纤维混凝土，纤维利用率高，增强效果好。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施例，进一步阐述本发明。
实施例
一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管，由下述重量份(g)的原料制得：
粉煤灰12，矿渣粉17，偏高岭土5，石膏2，硫酸钠7，萘系高效减水剂3，砂18，碎石12，双酚A型环氧树脂E-44 6，过氧化苯甲酰4，丙烯酸5，N,N-二甲基乙醇胺3，有机蒙脱土6，水泥9，钢纤维7，煅烧硅藻土6，钢筋12，ZnCl2 3，二水石膏4，引气剂3，丙二醇甲醚、水适量。
一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管的制备方法，其特征在于，按以下步骤进行：
a. 将粉煤灰经机械磨细后与矿渣粉、ZnCl2、二水石膏、偏高岭土混合，搅
拌均匀得胶凝材料；
b. 将石膏、硫酸钠混合球磨均匀得激发剂，与萘系高效减水剂加入a中所得物料，再以2:6加入砂和水，搅拌得砂浆，加入粒径10-20mm的碎石，搅拌30-40min；
c. 将双酚A型环氧树脂E-44以1:5溶解于丙二醇甲醚，加入过氧化苯甲酰、丙烯酸，升温至105-115℃反应3h，搅拌下1:6加入N,N-二甲基乙醇胺和水，调pH为7-8，加入有机蒙脱土、引气剂，80-90℃反应1h，待用；
d. 将a、b、c中所得物料混合，加入水泥、钢纤维、煅烧硅藻土，搅拌均匀，对混合物施加匀强磁场；
e. 将钢筋处理得到钢筋骨架成型，将d中所得物料投入其中，启动悬辊制管机，悬辊成型、蒸汽养护、脱模，得到一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管。
上述实施例制备的一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管性能检测结果如下所示：
耐酸和耐碱腐蚀系数≥0.87，排水管裂缝荷载≥61kN/m，破坏荷载≥89kN/m，达到Ø1200mm钢筋混凝土排水管Ⅰ级管要求。

Claims (2)

1.一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管，其特征在于，由下述重量份的原料制得：
粉煤灰8-12，矿渣粉13-17，偏高岭土3-5，石膏1-2，硫酸钠5-7，萘系高效减水剂1-3，砂15-18，碎石7-12，双酚A型环氧树脂E-44 4-6，过氧化苯甲酰4-6，丙烯酸3-5，N,N-二甲基乙醇胺1-3，有机蒙脱土3-6，水泥4-9，钢纤维4-7，煅烧硅藻土3-6，钢筋7-12，ZnCl2 2-3，二水石膏2-4，引气剂1-3，丙二醇甲醚、水适量。
2.根据权利要求1所述的一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管的制备方法，其特征在于，按以下步骤进行：
将粉煤灰经机械磨细后与矿渣粉、ZnCl2、二水石膏、偏高岭土混合，搅拌均匀得胶凝材料；
b. 将石膏、硫酸钠混合球磨均匀得激发剂，与萘系高效减水剂加入a中所得物料，再以2:4-6加入砂和水，搅拌得砂浆，加入粒径5-25mm的碎石，搅拌30-50min；
c. 将双酚A型环氧树脂E-44以1:3-5溶解于丙二醇甲醚，加入过氧化苯甲酰、丙烯酸，升温至105-115℃反应2-3h，搅拌下1:4-6加入N,N-二甲基乙醇胺和水，调pH为7-8，加入有机蒙脱土、引气剂，80-90℃反应1-2h，待用；
d. 将a、b、c中所得物料混合，加入水泥、钢纤维、煅烧硅藻土，搅拌均匀，对混合物施加匀强磁场；
e. 将钢筋处理得到钢筋骨架成型，将d中所得物料投入其中，启动悬辊制管机，悬辊成型、蒸汽养护、脱模，得到一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管。
CN201611157969.5A 2016-12-15 2016-12-15 一种抗碳化性能好的耐腐蚀型钢筋混凝土排水管及其制备方法 Pending CN106830776A (zh)

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