CN106116419A - A kind of asphalt pavement material of seawater corrosion resistance and preparation method thereof - Google Patents
A kind of asphalt pavement material of seawater corrosion resistance and preparation method thereof Download PDFInfo
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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
- C04B28/14—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 calcium sulfate 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
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Abstract
本发明涉及一种耐海水腐蚀的沥青路面材料及其制备方法，属于路面材料技术领域。包括按重量份计的如下组分：沥青10～15份、半水石膏5～20份、硅酸盐水泥15～20份，二氧化硅5～10份、碳化硅陶瓷粉3～5份、玻璃空心微珠1～3份、石蜡3～6份、硅藻土6～12份、粉煤灰20～40份、防霉剂0.5～2份、表面活性剂0.5～2份、水50～100份。本发明提供的沥青路面材料，通过各组分的合理搭配，具有较好的耐海水腐蚀性能，具有强度高的优点。The invention relates to a seawater corrosion-resistant asphalt pavement material and a preparation method thereof, belonging to the technical field of pavement materials. It includes the following components in parts by weight: 10-15 parts of asphalt, 5-20 parts of hemihydrate gypsum, 15-20 parts of Portland cement, 5-10 parts of silicon dioxide, 3-5 parts of silicon carbide ceramic powder, 1-3 parts of glass hollow microspheres, 3-6 parts of paraffin, 6-12 parts of diatomaceous earth, 20-40 parts of fly ash, 0.5-2 parts of antifungal agent, 0.5-2 parts of surfactant, 50-50 parts of water 100 copies. The asphalt pavement material provided by the invention has good seawater corrosion resistance and high strength through reasonable matching of various components.
Description
技术领域technical field
本发明涉及一种耐海水腐蚀的沥青路面材料及其制备方法，属于路面材料技术领域。The invention relates to a seawater corrosion-resistant asphalt pavement material and a preparation method thereof, belonging to the technical field of pavement materials.
背景技术Background technique
沥青混凝土是用具有一定黏度和适当用量的沥青材料与一定级配的矿物集料，经过充分拌合形成的混合物。沥青混凝土作为沥青路面材料，在使用过程中要承受行使车辆荷载的反复作用，以及环境因素的长期影响。所以沥青混凝土在具备一定的承受能力的同时，还必须具备良好的抵抗自然因素作用的耐久性。也就是说，要能表现出足够的高温环境下的稳定性、低温状况下的抗裂性、良好的水稳定性、持久的抗老化性和利于安全的抗滑性等特点，以保证沥青路面良好的服务功能。Asphalt concrete is a mixture formed by fully mixing asphalt materials with a certain viscosity and appropriate dosage and mineral aggregates of a certain grade. Asphalt concrete, as an asphalt pavement material, has to bear the repeated action of running vehicle loads and the long-term impact of environmental factors during its use. Therefore, while asphalt concrete has a certain bearing capacity, it must also have good durability against natural factors. That is to say, it should be able to show sufficient stability in high temperature environment, crack resistance in low temperature condition, good water stability, long-lasting anti-aging and good anti-skid property to ensure asphalt pavement Good service function.
不少靠海的路面因海水腐蚀仅几年就已出现明显的剥蚀、开裂等现象。仅仅单方面考虑路面的腐蚀过程和路面的使用条件是不够的，还要考虑沥青混凝土与海洋环境的相互作用，所以在许多情况下必须对沥青混凝土路面采取适当的应对措施，否则，海水及其环境可能损坏路面，甚至使其丧失使用价值。Many roads close to the sea have obvious erosion and cracking due to seawater corrosion in just a few years. It is not enough to only consider the corrosion process of the pavement and the service conditions of the pavement, but also consider the interaction between the asphalt concrete and the marine environment, so in many cases it is necessary to take appropriate countermeasures for the asphalt concrete pavement, otherwise, seawater and its The environment can damage pavement and even render it useless.
专利CN104030609A公开一种抑制排水性沥青路面石料飞散的特种沥青混合料及制备方法，所述特种沥青混合料包括：集料、填料、高粘度改性沥青及外添加剂。其中，所述集料包括玄武岩、辉绿岩和/或石灰岩；所述填料为石灰石矿粉；所述高粘度改性沥青由SBS、70号石油沥青和稳定剂高温下经搅拌、高剪切制成；所述外添加剂为若干细金属丝。CN103773039A涉及一种复合环氧沥青路面材料及其制备方法，复合环氧沥青路面材料由以下成分按照重量比组成：煤焦沥青为50～55份、酚醛树脂为24～29份、双酚F型环氧树脂为15～17份、硬脂酸二乙醇酰胺为3～5份、苯甲酸酐为6～12份、碳酸铝为5～9份。通过将组成材料加热熔融、搅拌、粉碎、反应等程序制备得到复合环氧沥青路面材料。Patent CN104030609A discloses a special asphalt mixture that suppresses the scattering of drainage asphalt pavement stones and a preparation method thereof. The special asphalt mixture includes: aggregates, fillers, high-viscosity modified asphalt and external additives. Wherein, the aggregate includes basalt, diabase and/or limestone; the filler is limestone powder; the high-viscosity modified asphalt is made of SBS, No. 70 petroleum asphalt and stabilizer under high temperature stirring, high shear Made; the external additives are several fine metal wires. CN103773039A relates to a composite epoxy asphalt pavement material and a preparation method thereof. The composite epoxy asphalt pavement material is composed of the following components according to the weight ratio: 50-55 parts of coal tar pitch, 24-29 parts of phenolic resin, bisphenol F type 15-17 parts of epoxy resin, 3-5 parts of stearic acid diethanolamide, 6-12 parts of benzoic anhydride, and 5-9 parts of aluminum carbonate. The composite epoxy asphalt pavement material is prepared by heating and melting the constituent materials, stirring, pulverizing, and reacting.
但是上述的沥青路面材料存在着在海水浸泡后强度下降的问题。However, the above-mentioned asphalt pavement materials have the problem that the strength decreases after soaking in seawater.
发明内容Contents of the invention
本发明的目的是：解决常规沥青路面材料受到盐水浸泡后强度下降的问题。The purpose of the invention is to solve the problem that the strength of conventional asphalt pavement materials decreases after being soaked in salt water.
技术方案是：The technical solution is:
一种耐海水腐蚀的沥青路面材料，包括按重量份计的如下组分：沥青10～15份、半水石膏5～20份、硅酸盐水泥15～20份，二氧化硅5～10份、碳化硅陶瓷粉3～5份、玻璃空心微珠1～3份、石蜡3～6份、硅藻土6～12份、粉煤灰20～40份、防霉剂0.5～2份、表面活性剂0.5～2份、水50～100份。An asphalt pavement material resistant to seawater corrosion, comprising the following components in parts by weight: 10-15 parts of asphalt, 5-20 parts of hemihydrate gypsum, 15-20 parts of Portland cement, and 5-10 parts of silicon dioxide , 3-5 parts of silicon carbide ceramic powder, 1-3 parts of glass hollow microspheres, 3-6 parts of paraffin, 6-12 parts of diatomaceous earth, 20-40 parts of fly ash, 0.5-2 parts of mold inhibitor, surface Active agent 0.5-2 parts, water 50-100 parts.
玻璃空心微珠粒径范围是400～800目。The particle size range of glass hollow microspheres is 400-800 mesh.
硅藻土粒径范围是200～400目。The particle size range of diatomite is 200-400 mesh.
所述的二氧化硅是羟基硅油改性的。The silicon dioxide is modified by hydroxyl silicone oil.
所述的碳化硅陶瓷粉是经过碳酸钠刻蚀处理过的。The silicon carbide ceramic powder is etched by sodium carbonate.
沥青路面材料的制备方法，包括如下步骤：The preparation method of asphalt pavement material, comprises the steps:
第1步，称取半水石膏、硅酸盐水泥、二氧化硅，进行预分散；Step 1, weigh hemihydrate gypsum, Portland cement, silicon dioxide, and carry out pre-dispersion;
第2步，再将上述的半水石膏、硅酸盐水泥、二氧化硅混合均匀；In the second step, mix the above-mentioned hemihydrate gypsum, portland cement and silicon dioxide evenly;
第3步，称取碳化硅陶瓷粉、玻璃空心微珠、石蜡、硅藻土、粉煤灰，混合均匀；The 3rd step, weigh silicon carbide ceramic powder, glass hollow microspheres, paraffin, diatomaceous earth, fly ash, mix evenly;
第4步，将第2步和第3步所得的混合物与防霉剂、表面活性剂、水、沥青进行混合均匀，得成品。In step 4, the mixture obtained in steps 2 and 3 is uniformly mixed with antifungal agent, surfactant, water and asphalt to obtain a finished product.
有益效果Beneficial effect
本发明提供的沥青路面材料，通过各组分的合理搭配，具有较好的耐海水腐蚀性能，具有强度高的优点。The asphalt pavement material provided by the invention has good seawater corrosion resistance and high strength through reasonable matching of various components.
具体实施方式detailed description
实施例1Example 1
沥青路面材料，包括按重量份计的如下组分：沥青10份、半水石膏5份、硅酸盐水泥15份，二氧化硅5份、碳化硅陶瓷粉3份、400～800目玻璃空心微珠1份、石蜡3份、200～400目硅藻土6份、粉煤灰20份、防霉剂0.5份、表面活性剂0.5份、水50份。Asphalt pavement materials, including the following components by weight: 10 parts of asphalt, 5 parts of hemihydrate gypsum, 15 parts of Portland cement, 5 parts of silicon dioxide, 3 parts of silicon carbide ceramic powder, 400-800 mesh glass hollow 1 part of microbeads, 3 parts of paraffin, 6 parts of 200-400 mesh diatomite, 20 parts of fly ash, 0.5 parts of antifungal agent, 0.5 parts of surfactant, and 50 parts of water.
沥青路面材料的制备方法，包括如下步骤：The preparation method of asphalt pavement material, comprises the steps:
第1步，称取半水石膏、硅酸盐水泥、二氧化硅，进行预分散；Step 1, weigh hemihydrate gypsum, Portland cement, silicon dioxide, and carry out pre-dispersion;
第2步，再将上述的半水石膏、硅酸盐水泥、二氧化硅混合均匀；In the second step, mix the above-mentioned hemihydrate gypsum, portland cement and silicon dioxide evenly;
第3步，称取碳化硅陶瓷粉、玻璃空心微珠、石蜡、硅藻土、粉煤灰，混合均匀；The 3rd step, weigh silicon carbide ceramic powder, glass hollow microspheres, paraffin, diatomaceous earth, fly ash, mix evenly;
第4步，将第2步和第3步所得的混合物与防霉剂、表面活性剂、水、沥青进行混合均匀，得成品。In step 4, the mixture obtained in steps 2 and 3 is uniformly mixed with antifungal agent, surfactant, water and asphalt to obtain a finished product.
实施例2Example 2
沥青路面材料，包括按重量份计的如下组分：沥青15份、半水石膏20份、硅酸盐水泥20份，二氧化硅10份、碳化硅陶瓷粉5份、400～800目玻璃空心微珠3份、石蜡6份、200～400目硅藻土12份、粉煤灰40份、防霉剂2份、表面活性剂2份、水100份。Asphalt pavement materials, including the following components by weight: 15 parts of asphalt, 20 parts of hemihydrate gypsum, 20 parts of Portland cement, 10 parts of silicon dioxide, 5 parts of silicon carbide ceramic powder, 400-800 mesh glass hollow 3 parts of microbeads, 6 parts of paraffin, 12 parts of 200-400 mesh diatomite, 40 parts of fly ash, 2 parts of antifungal agent, 2 parts of surfactant, and 100 parts of water.
沥青路面材料的制备方法，包括如下步骤：The preparation method of asphalt pavement material, comprises the steps:
第1步，称取半水石膏、硅酸盐水泥、二氧化硅，进行预分散；Step 1, weigh hemihydrate gypsum, Portland cement, silicon dioxide, and carry out pre-dispersion;
第2步，再将上述的半水石膏、硅酸盐水泥、二氧化硅混合均匀；In the second step, mix the above-mentioned hemihydrate gypsum, portland cement and silicon dioxide evenly;
第3步，称取碳化硅陶瓷粉、玻璃空心微珠、石蜡、硅藻土、粉煤灰，混合均匀；The 3rd step, weigh silicon carbide ceramic powder, glass hollow microspheres, paraffin, diatomaceous earth, fly ash, mix evenly;
第4步，将第2步和第3步所得的混合物与防霉剂、表面活性剂、水、沥青进行混合均匀，得成品。In step 4, the mixture obtained in steps 2 and 3 is uniformly mixed with antifungal agent, surfactant, water and asphalt to obtain a finished product.
实施例3Example 3
沥青路面材料，包括按重量份计的如下组分：沥青12份、半水石膏8份、硅酸盐水泥18份，二氧化硅8份、碳化硅陶瓷粉4份、400～800目玻璃空心微珠2份、石蜡5份、200～400目硅藻土8份、粉煤灰30份、防霉剂1份、表面活性剂1份、水80份。Asphalt pavement materials, including the following components by weight: 12 parts of asphalt, 8 parts of hemihydrate gypsum, 18 parts of Portland cement, 8 parts of silicon dioxide, 4 parts of silicon carbide ceramic powder, 400-800 mesh glass hollow 2 parts of microbeads, 5 parts of paraffin, 8 parts of 200-400 mesh diatomite, 30 parts of fly ash, 1 part of antifungal agent, 1 part of surfactant, and 80 parts of water.
沥青路面材料的制备方法，包括如下步骤：The preparation method of asphalt pavement material, comprises the steps:
第1步，称取半水石膏、硅酸盐水泥、二氧化硅，进行预分散；Step 1, weigh hemihydrate gypsum, Portland cement, silicon dioxide, and carry out pre-dispersion;
第2步，再将上述的半水石膏、硅酸盐水泥、二氧化硅混合均匀；In the second step, mix the above-mentioned hemihydrate gypsum, portland cement and silicon dioxide evenly;
第3步，称取碳化硅陶瓷粉、玻璃空心微珠、石蜡、硅藻土、粉煤灰，混合均匀；The 3rd step, weigh silicon carbide ceramic powder, glass hollow microspheres, paraffin, diatomaceous earth, fly ash, mix evenly;
第4步，将第2步和第3步所得的混合物与防霉剂、表面活性剂、水、沥青进行混合均匀，得成品。In step 4, the mixture obtained in steps 2 and 3 is uniformly mixed with antifungal agent, surfactant, water and asphalt to obtain a finished product.
实施例4Example 4
与实施例3的区别在于：所述的二氧化硅是羟基硅油改性的。改性的方法：在反应器中加入按重量份计的加入40份硅酸钠、6份硫酸钠和水500份，在30℃下搅拌30min，升温至85℃，滴加12wt%的硫酸溶液至体系pH为10.5，陈化20min，再加12wt%硫酸调整pH至4.7，加入羟基硅油40份，搅拌1h后，陈化1.5h；过滤，滤饼经水洗至洗液中无SO4 2-，乙醇洗涤除去水分，干燥得白色粉末。The difference from Example 3 is that the silicon dioxide is modified by hydroxyl silicone oil. Modification method: add 40 parts of sodium silicate, 6 parts of sodium sulfate and 500 parts of water in parts by weight into the reactor, stir at 30°C for 30min, raise the temperature to 85°C, and add 12wt% sulfuric acid solution dropwise When the pH of the system is 10.5, age for 20 minutes, add 12wt% sulfuric acid to adjust the pH to 4.7, add 40 parts of hydroxyl silicone oil, stir for 1 hour, and age for 1.5 hours; filter, and wash the filter cake with water until there is no SO 4 2- , washed with ethanol to remove water, and dried to obtain a white powder.
沥青路面材料，包括按重量份计的如下组分：沥青12份、半水石膏8份、硅酸盐水泥18份，羟基硅油改性二氧化硅8份、碳化硅陶瓷粉4份、400～800目玻璃空心微珠2份、石蜡5份、200～400目硅藻土8份、粉煤灰30份、防霉剂1份、表面活性剂1份、水80份。Asphalt pavement materials, including the following components by weight: 12 parts of asphalt, 8 parts of hemihydrate gypsum, 18 parts of Portland cement, 8 parts of hydroxyl silicone oil modified silicon dioxide, 4 parts of silicon carbide ceramic powder, 400～ 2 parts of 800 mesh glass hollow microspheres, 5 parts of paraffin wax, 8 parts of 200-400 mesh diatomite, 30 parts of fly ash, 1 part of antifungal agent, 1 part of surfactant, 80 parts of water.
沥青路面材料的制备方法，包括如下步骤：The preparation method of asphalt pavement material, comprises the steps:
第1步，称取半水石膏、硅酸盐水泥、二氧化硅，进行预分散；Step 1, weigh hemihydrate gypsum, Portland cement, silicon dioxide, and carry out pre-dispersion;
第2步，再将上述的半水石膏、硅酸盐水泥、羟基硅油改性二氧化硅混合均匀；In the second step, the above-mentioned hemihydrate gypsum, Portland cement, and hydroxyl silicone oil modified silica are mixed evenly;
第3步，称取碳化硅陶瓷粉、玻璃空心微珠、石蜡、硅藻土、粉煤灰，混合均匀；The 3rd step, weigh silicon carbide ceramic powder, glass hollow microspheres, paraffin, diatomaceous earth, fly ash, mix evenly;
第4步，将第2步和第3步所得的混合物与防霉剂、表面活性剂、水、沥青进行混合均匀，得成品。In step 4, the mixture obtained in steps 2 and 3 is uniformly mixed with antifungal agent, surfactant, water and asphalt to obtain a finished product.
实施例5Example 5
与实施例3的区别在于：所述的碳化硅陶瓷粉是经过碳酸钠刻蚀处理过的。刻蚀方法是：按重量份，取SiC 15份、碳酸钠20份，混合均匀后，放置于石英舟中，加热升温至750℃，升温速度是10℃/分，保温，保温时间是4分钟，放冷后，将固体物用稀盐酸洗涤至恒重，得到刻蚀SiC。The difference from Example 3 is that the silicon carbide ceramic powder is etched by sodium carbonate. The etching method is: by weight, take 15 parts of SiC and 20 parts of sodium carbonate, mix them evenly, place them in a quartz boat, heat up to 750°C, the heating rate is 10°C/min, keep warm, and keep warm for 4 minutes , after cooling, the solid was washed with dilute hydrochloric acid to constant weight to obtain etched SiC.
沥青路面材料，包括按重量份计的如下组分：沥青12份、半水石膏8份、硅酸盐水泥18份，二氧化硅8份、碳酸钠刻蚀碳化硅陶瓷粉4份、400～800目玻璃空心微珠2份、石蜡5份、200～400目硅藻土8份、粉煤灰30份、防霉剂1份、表面活性剂1份、水80份。Asphalt pavement materials, including the following components by weight: 12 parts of asphalt, 8 parts of hemihydrate gypsum, 18 parts of Portland cement, 8 parts of silicon dioxide, 4 parts of sodium carbonate etched silicon carbide ceramic powder, 400～ 2 parts of 800 mesh glass hollow microspheres, 5 parts of paraffin wax, 8 parts of 200-400 mesh diatomite, 30 parts of fly ash, 1 part of antifungal agent, 1 part of surfactant, 80 parts of water.
沥青路面材料的制备方法，包括如下步骤：The preparation method of asphalt pavement material, comprises the steps:
第1步，称取半水石膏、硅酸盐水泥、二氧化硅，进行预分散；Step 1, weigh hemihydrate gypsum, Portland cement, silicon dioxide, and carry out pre-dispersion;
第2步，再将上述的半水石膏、硅酸盐水泥、二氧化硅混合均匀；In the second step, mix the above-mentioned hemihydrate gypsum, portland cement and silicon dioxide evenly;
第3步，称取碳酸钠刻蚀碳化硅陶瓷粉、玻璃空心微珠、石蜡、硅藻土、粉煤灰，混合均匀；The 3rd step, take by weighing sodium carbonate etching silicon carbide ceramic powder, glass hollow microspheres, paraffin, diatomaceous earth, fly ash, mix uniformly;
第4步，将第2步和第3步所得的混合物与防霉剂、表面活性剂、水、沥青进行混合均匀，得成品。In step 4, the mixture obtained in steps 2 and 3 is uniformly mixed with antifungal agent, surfactant, water and asphalt to obtain a finished product.
采用以下分析测试方法考察本路面材料耐海水腐蚀的性能：The following analysis and test methods are used to investigate the seawater corrosion resistance performance of this pavement material:
将各实施例的路面材料砂浆，制备成200 mm×200 mm×5 mm试块，将试块置于不同溶液中，每1个月更换一次新鲜溶液，24个月后取出。对试块的抗压强度、抗折强度、失重、表面平整度(目测法)进行考察。试验结果如表1～表3。The pavement material mortar of each example was prepared into a 200 mm × 200 mm × 5 mm test block, and the test block was placed in different solutions, and the fresh solution was replaced every 1 month, and it was taken out after 24 months. The compressive strength, flexural strength, weight loss and surface smoothness (visual method) of the test block were investigated. The test results are shown in Table 1-Table 3.
表1路面试样的耐海水试验数据(溶液：真实海水)Seawater resistance test data of table 1 pavement sample (solution: real seawater)
表2实施例1～4的路面的耐海水试验数据(溶液：模拟海水)The seawater resistance test data (solution: simulated seawater) of the road surface of table 2 embodiment 1～4
表3 实施例1～4的路面的耐海水试验数据(溶液：苦咸水)Table 3 Seawater Resistance Test Data (Solution: Brackish Water) of the Pavements of Examples 1-4
从以上实验数据看出，本发明提供的路面材料在试验溶液中浸泡24个月后，仍然具有较高的强度以及较小的失重，耐海水腐蚀性能好。实施例4相对于对照例3中通过对二氧化硅进行改性，可以显著提高材料的抗压强度；实施例5相对于对照例3，通过对碳化硅进行刻蚀也能够起到提高耐海水腐蚀的效果，可能是由于经过腐蚀后，使表面产生凹凸空间，与其它的颗粒可以更好地相容，提高材料的整体成型效果。It can be seen from the above experimental data that the pavement material provided by the present invention still has high strength and small weight loss after soaking in the test solution for 24 months, and has good seawater corrosion resistance. Compared with Comparative Example 3, in Example 4, the compressive strength of the material can be significantly improved by modifying silicon dioxide; in Example 5, compared with Comparative Example 3, silicon carbide can also be etched to improve seawater resistance. The effect of corrosion may be due to the uneven space on the surface after corrosion, which can be better compatible with other particles and improve the overall molding effect of the material.
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