A paving asphalt filler and process for its preparation
By adding a composite oil of wood wax oil, perilla seed oil and pine oil to asphalt, and combining it with walnut shell powder, rice husk and sugarcane bagasse, the aggregate composition is optimized, and a paving asphalt filler that is crack-resistant at low temperatures and deformation-resistant at high temperatures is prepared. This solves the problems of easy cracking and deformation in the existing technology and improves the stability and service life of the road surface.
Patent Information
- Application Number
- CN202311583328.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-24
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2043-11-24
AI Technical Summary
Existing asphalt filler for paving is prone to cracking under low temperature conditions, leading to frequent repairs of the asphalt pavement at the edges of manhole covers. Furthermore, it is prone to softening and deformation under high temperature conditions, making it difficult to maintain stability.
Asphalt was modified with a composite oil of wood wax oil, perilla seed oil and pine oil, and walnut shell powder, rice husk and sugarcane bagasse were added as composite fillers to optimize the aggregate composition. Paving asphalt filler was prepared by heating at a specific temperature and mixing process.
It improves the low-temperature crack resistance and high-temperature deformation resistance of asphalt filler, reduces the frequency of repairs, enhances the bonding force and stability between asphalt and aggregate, reduces rutting and indentation, and extends service life.
Smart Images
Figure BDA0004569166310000131 
Figure BDA0004569166310000141
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of asphalt materials, in particular to a road paving asphalt filler and a preparation process thereof. BACKGROUND
[0002] The asphalt pavement is a pavement paved with asphalt material, which has high water permeability, soft pavement and other advantages, and the driving comfort is higher, and has been widely used.
[0003] With the development of cities, the coverage of urban infrastructure is wider and wider, and various pipelines are more and more, in order to better manage, the pipeline is usually laid under the road surface, in order to facilitate the maintenance of underground pipeline and line, a plurality of inspection wells connected with underground passage are set, the top of the inspection well is covered with a well cover, the inspection well and the well cover will damage the road surface, after covering the well cover, the gap between the well cover and the road surface needs to be repaired, mainly by filling the gap with road paving asphalt filler, so that the road surface is restored to be flat.
[0004] In the actual construction process, the top of the well cover is usually difficult to keep at the same level as the road surface, resulting in a height difference between the road surface and the well cover, and the well cover is usually lower than the road surface level, so that when the vehicle passes, the wheel reaches the surface of the well cover, and in the process of leaving the surface of the well cover and returning to the road surface, the wheel not only rolls and rubs with the asphalt at the edge of the well cover, but also causes a certain transverse impact on the asphalt at the edge of the well cover, and the higher the speed, the greater the transverse impact. However, due to the performance characteristics of the existing asphalt filler, the asphalt will harden at low temperature, and the hardened asphalt is prone to cracking under the action of multiple forces such as transverse impact and longitudinal pressure, which causes the asphalt at the edge of the well cover to crack more easily, and then spreads to the road surface, resulting in frequent repair of the asphalt pavement. Therefore, there is still room for improvement. SUMMARY
[0005] In order to improve the crack resistance of the road paving asphalt filler at low temperature, the present application provides a road paving asphalt filler and a preparation process thereof.
[0006] In the first aspect, the present application provides a road paving asphalt filler, which adopts the following technical scheme:
[0007] A road paving asphalt filler, comprising the following components by mass fraction:
[0008] Asphalt 3-4 parts;
[0009] Aggregate 91-99 parts;
[0010] Compound oil 1-1.3 parts;
[0011] Compound filler 9-12 parts;
[0012] The composite oil is a compound of wood wax oil, perilla seed oil and pine oil.
[0013] By adding the composite oil composed of wood wax oil, perilla seed oil and pine oil into the asphalt, the low-temperature crack resistance of the asphalt can be effectively improved, the asphalt is not easy to harden at low temperature, and the flexibility is better to buffer the impact force through flexible deformation, so that the asphalt filler filled in the edge of the well lid is not easy to crack, and then the crack is not easy to spread to the road surface, the maintenance frequency of the asphalt pavement is effectively reduced, and the quality is better.
[0014] By adding wood wax oil, perilla seed oil and pine oil, the adhesion of the asphalt to the aggregate can be improved, the connection between the asphalt and the aggregate is stronger, the stability is higher, the anti-rutting performance is higher, the asphalt filler is not easy to crack at low temperature and is not easy to soften and deform at high temperature, and the quality is better.
[0015] Preferably, the mass ratio of the wood wax oil, perilla seed oil and pine oil is 0.5-0.6:0.1-0.2:0.4-0.5.
[0016] By adopting the above technical scheme, by specifically selecting the mass ratio of wood wax oil, perilla seed oil and pine oil, the modification effect on the asphalt is better, and the prepared asphalt filler is not easy to crack and deform, and the quality is better.
[0017] Preferably, the composite filler is a compound of walnut shell powder, rice husk and sugarcane residue.
[0018] By adopting the above technical scheme, by adding walnut shell powder, rice husk and sugarcane residue, the performance of the asphalt filler resisting deformation can be further improved, the anti-rutting performance of the asphalt filler at high temperature is better, the repair frequency is better reduced, and the application prospect is higher.
[0019] Preferably, the mass ratio of the walnut shell powder, rice husk and sugarcane residue is 2-3:4-5:3-4.
[0020] By adopting the above technical scheme, by specifically selecting the mass ratio of walnut shell powder, rice husk and sugarcane residue, the effect of improving the anti-deformation of the asphalt filler is better, and the quality is better.
[0021] Preferably, the aggregate is a compound of large broken stone, medium broken stone, small broken stone and fine sand, the particle size of the large broken stone is 20-30mm, the particle size of the medium broken stone is 10-20mm, and the particle size of the small broken stone is 5-10mm.
[0022] By adopting the above technical scheme, by specifically selecting the compound of large broken stone, medium broken stone, small broken stone and fine sand, the stability of the asphalt filler is higher, the asphalt filler is not easy to deform, the bearing capacity is higher, the asphalt filler is not easy to deform under pressure, and the quality is better.
[0023] Preferably, the mass ratio of large crushed stone, medium crushed stone, small crushed stone, and fine sand is 20-22:24-26:17-19:30-32.
[0024] By adopting the above technical solution and by specifically selecting the mass ratio of large crushed stone, medium crushed stone, small crushed stone, and fine sand, the aggregate distribution is more reasonable, the asphalt filler is more stable, and it is less prone to deformation.
[0025] Secondly, this application provides a method for preparing paving asphalt filler, which adopts the following technical solution:
[0026] A preparation process for the above-mentioned paving asphalt filler includes the following steps:
[0027] Step 1), heat and mix asphalt and compound oil to obtain a premix;
[0028] Step 2) Add aggregates and composite fillers to the premix and mix them evenly to obtain paving asphalt filler.
[0029] By adopting the above technical solution, the asphalt filler has good crack resistance and deformation resistance, high stability, and is not easily damaged, which greatly reduces the frequency of repairs and has high application prospects.
[0030] Preferably, in step 1), the heating temperature is 150-160℃.
[0031] By adopting the above technical solution and heating at a specific temperature, the composite oil is fully mixed into the asphalt, resulting in a more significant modification effect of the composite oil on the asphalt. This improves the low-temperature crack resistance and high-temperature deformation resistance of the asphalt filler, leading to a higher quality asphalt filler.
[0032] In summary, this application has the following beneficial effects:
[0033] 1. Because this application adds a composite oil made of wood wax oil, perilla seed oil and pine oil to asphalt, it can effectively improve the low-temperature crack resistance of asphalt, making the asphalt less likely to harden at low temperatures, better maintain its flexibility to buffer impact through flexible deformation, making the asphalt filler filling the edge of the manhole cover less likely to crack, and also improve the adhesion of asphalt to aggregate, making the connection between asphalt and aggregate stronger, more stable, and with higher rutting resistance, making the asphalt filler less likely to crack at low temperatures and less likely to soften and deform at high temperatures, resulting in better quality.
[0034] 2. In this application, the preferred method is to select the specific mass ratio of wood wax oil, perilla seed oil, and pine oil to achieve better modification effect on asphalt, and the resulting asphalt filler is less prone to cracking and deformation, resulting in better quality.
[0035] 3. In this application, the addition of walnut shell powder, rice husk, and sugarcane bagasse can further improve the deformation resistance of asphalt filler, making the asphalt filler more resistant to rutting at high temperatures, reducing the frequency of repairs, and showing high application prospects. Detailed Implementation
[0036] The present application will be further described in detail below with reference to the embodiments.
[0037] Example 1
[0038] A paving asphalt filler is made from the following components:
[0039] Asphalt, aggregates, compound oils, and compound fillers.
[0040] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0041] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0042] Large crushed stone has a particle size of 20-30mm.
[0043] The particle size of medium-sized crushed stone is 10-20mm.
[0044] The particle size of the small gravel is 5-10mm.
[0045] The fine sand is river sand, 10-20 mesh.
[0046] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0047] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0048] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0049] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0050] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0051] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0052] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0053] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0054] The preparation process of paving asphalt filler is as follows:
[0055] Step 1): Add 3 kg of asphalt, 0.5 kg of wood wax oil, 0.1 kg of perilla seed oil, and 0.4-0.5 kg of pine oil to a mixing tank, heat to 150°C, rotate at 20 r / min, stir for 10 min, and mix evenly to obtain a premix.
[0056] Step 2): Add 20kg of large crushed stone, 24kg of medium crushed stone, 17kg of small crushed stone, 30kg of fine sand, 2kg of walnut shell powder, 4kg of rice husk, and 3kg of sugarcane bagasse to the premix. Maintain a constant temperature of 150℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0057] Example 2
[0058] A paving asphalt filler is made from the following components:
[0059] Asphalt, aggregates, compound oils, and compound fillers.
[0060] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0061] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0062] Large crushed stone has a particle size of 20-30mm.
[0063] The particle size of medium-sized crushed stone is 10-20mm.
[0064] The particle size of the small gravel is 5-10mm.
[0065] The fine sand is river sand, 10-20 mesh.
[0066] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0067] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0068] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0069] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0070] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0071] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0072] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0073] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0074] The preparation process of paving asphalt filler is as follows:
[0075] Step 1): Add 3.25 kg asphalt, 0.525 kg wood wax oil, 0.125 kg perilla seed oil and 0.425 kg pine oil to a mixing tank, heat to 152℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0076] Step 2): Add 20.5 kg of large crushed stone, 24.5 kg of medium crushed stone, 17.5 kg of small crushed stone, 30.5 kg of fine sand, 2.25 kg of walnut shell powder, 4.25 kg of rice husk, and 3.25 kg of sugarcane bagasse to the premix. Maintain a constant temperature of 152℃ and a rotation speed of 40 r / min, and stir for 10 min until the mixture is homogeneous to obtain paving asphalt filler.
[0077] Example 3
[0078] A paving asphalt filler is made from the following components:
[0079] Asphalt, aggregates, compound oils, and compound fillers.
[0080] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0081] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0082] Large crushed stone has a particle size of 20-30mm.
[0083] The particle size of medium-sized crushed stone is 10-20mm.
[0084] The particle size of the small gravel is 5-10mm.
[0085] The fine sand is river sand, 10-20 mesh.
[0086] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0087] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0088] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0089] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0090] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0091] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0092] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0093] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0094] The preparation process of paving asphalt filler is as follows:
[0095] Step 1): Add 3.5 kg asphalt, 0.55 kg wood wax oil, 0.15 kg perilla seed oil and 0.45 kg pine oil to a mixing tank, heat to 155℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0096] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of walnut shell powder, 4.5kg of rice husk, and 3.5kg of sugarcane bagasse to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0097] Example 4
[0098] A paving asphalt filler is made from the following components:
[0099] Asphalt, aggregates, compound oils, and compound fillers.
[0100] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0101] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0102] Large crushed stone has a particle size of 20-30mm.
[0103] The particle size of medium-sized crushed stone is 10-20mm.
[0104] The particle size of the small gravel is 5-10mm.
[0105] The fine sand is river sand, 10-20 mesh.
[0106] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0107] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0108] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0109] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0110] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0111] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0112] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0113] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0114] The preparation process of paving asphalt filler is as follows:
[0115] Step 1): Add 3.75 kg asphalt, 0.575 kg wood wax oil, 0.175 kg perilla seed oil and 0.475 kg pine oil to a mixing tank, heat to 158℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0116] Step 2): Add 21.5 kg of large crushed stone, 25.5 kg of medium crushed stone, 18.5 kg of small crushed stone, 31.5 kg of fine sand, 2.75 kg of walnut shell powder, 4.75 kg of rice husk, and 3.75 kg of sugarcane bagasse to the premix. Maintain a constant temperature of 158℃ and a rotation speed of 40 r / min, and stir for 10 min until the mixture is homogeneous to obtain paving asphalt filler.
[0117] Example 5
[0118] A paving asphalt filler is made from the following components:
[0119] Asphalt, aggregates, compound oils, and compound fillers.
[0120] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0121] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0122] Large crushed stone has a particle size of 20-30mm.
[0123] The particle size of medium-sized crushed stone is 10-20mm.
[0124] The particle size of the small gravel is 5-10mm.
[0125] The fine sand is river sand, 10-20 mesh.
[0126] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0127] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0128] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0129] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0130] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0131] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0132] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0133] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0134] The preparation process of paving asphalt filler is as follows:
[0135] Step 1): Add 4 kg of asphalt, 0.6 kg of wood wax oil, 0.2 kg of perilla seed oil and 0.5 kg of pine oil into a mixing tank, heat to 160℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0136] Step 2): Add 22kg of large crushed stone, 26kg of medium crushed stone, 19kg of small crushed stone, 32kg of fine sand, 3kg of walnut shell powder, 5kg of rice husk, and 4kg of sugarcane bagasse to the premix. Maintain a constant temperature of 160℃ and a rotation speed of 40r / min, and stir for 10 minutes until the mixture is uniform to obtain paving asphalt filler.
[0137] Comparative Example 1
[0138] A paving asphalt filler is made from the following components:
[0139] Asphalt, aggregates, compound oils, and compound fillers.
[0140] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0141] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0142] Large crushed stone has a particle size of 20-30mm.
[0143] The particle size of medium-sized crushed stone is 10-20mm.
[0144] The particle size of the small gravel is 5-10mm.
[0145] The fine sand is river sand, 10-20 mesh.
[0146] The compound oil is a blend of white mineral oil, perilla seed oil, and pine oil.
[0147] The white mineral oil was purchased from Guangzhou Weichi Lubrication Technology Co., Ltd.
[0148] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0149] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0150] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0151] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0152] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0153] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0154] The preparation process of paving asphalt filler is as follows:
[0155] Step 1): Add 3.5 kg asphalt, 0.55 kg white mineral oil, 0.15 kg perilla seed oil and 0.45 kg pine oil to a mixing tank, heat to 155℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0156] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of walnut shell powder, 4.5kg of rice husk, and 3.5kg of sugarcane bagasse to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0157] Comparative Example 2
[0158] A paving asphalt filler is made from the following components:
[0159] Asphalt, aggregates, compound oils, and compound fillers.
[0160] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0161] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0162] Large crushed stone has a particle size of 20-30mm.
[0163] The particle size of medium-sized crushed stone is 10-20mm.
[0164] The particle size of the small gravel is 5-10mm.
[0165] The fine sand is river sand, 10-20 mesh.
[0166] The compound oil is a blend of wood wax oil, dimethyl silicone oil, and pine oil.
[0167] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0168] Dimethyl silicone oil was purchased from Jinan Silicon Port Chemical Co., Ltd.
[0169] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0170] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0171] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0172] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0173] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0174] The preparation process of paving asphalt filler is as follows:
[0175] Step 1): Add 3.5 kg asphalt, 0.55 kg wood wax oil, 0.15 kg dimethyl silicone oil and 0.45 kg pine oil to a mixing tank, heat to 155℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0176] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of walnut shell powder, 4.5kg of rice husk, and 3.5kg of sugarcane bagasse to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0177] Comparative Example 3
[0178] A paving asphalt filler is made from the following components:
[0179] Asphalt, aggregates, compound oils, and compound fillers.
[0180] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0181] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0182] Large crushed stone has a particle size of 20-30mm.
[0183] The particle size of medium-sized crushed stone is 10-20mm.
[0184] The particle size of the small gravel is 5-10mm.
[0185] The fine sand is river sand, 10-20 mesh.
[0186] The compound oil is a blend of wood wax oil, perilla seed oil, and aromatic oil.
[0187] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0188] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0189] The aromatic oil was purchased from Cangzhou Zhitong Co., Ltd.
[0190] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0191] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0192] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0193] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0194] The preparation process of paving asphalt filler is as follows:
[0195] Step 1): Add 3.5 kg asphalt, 0.55 kg wood wax oil, 0.15 kg perilla seed oil, and 0.45 kg aromatic oil to a mixing tank, heat to 155°C, rotate at 20 r / min, stir for 10 min, and mix evenly to obtain a premix.
[0196] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of walnut shell powder, 4.5kg of rice husk, and 3.5kg of sugarcane bagasse to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0197] Comparative Example 4
[0198] A paving asphalt filler is made from the following components:
[0199] Asphalt, aggregates, compound oils, and compound fillers.
[0200] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0201] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0202] Large crushed stone has a particle size of 20-30mm.
[0203] The particle size of medium-sized crushed stone is 10-20mm.
[0204] The particle size of the small gravel is 5-10mm.
[0205] The fine sand is river sand, 10-20 mesh.
[0206] The compound oil is a blend of white mineral oil, dimethyl silicone oil, and aromatic oil.
[0207] The white mineral oil was purchased from Guangzhou Weichi Lubrication Technology Co., Ltd.
[0208] Dimethyl silicone oil was purchased from Jinan Silicon Port Chemical Co., Ltd.
[0209] The aromatic oil was purchased from Cangzhou Zhitong Co., Ltd.
[0210] The composite filler is a mixture of walnut shell powder, rice husk, and sugarcane bagasse.
[0211] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0212] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0213] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0214] The preparation process of paving asphalt filler is as follows:
[0215] Step 1): Add 3.5 kg asphalt, 0.55 kg white mineral oil, 0.15 kg dimethyl silicone oil and 0.45 kg aromatic oil to a mixing tank, heat to 155°C, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0216] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of walnut shell powder, 4.5kg of rice husk, and 3.5kg of sugarcane bagasse to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0217] Comparative Example 5
[0218] A paving asphalt filler is made from the following components:
[0219] Asphalt, aggregates, compound oils, and compound fillers.
[0220] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0221] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0222] Large crushed stone has a particle size of 20-30mm.
[0223] The particle size of medium-sized crushed stone is 10-20mm.
[0224] The particle size of the small gravel is 5-10mm.
[0225] The fine sand is river sand, 10-20 mesh.
[0226] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0227] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0228] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0229] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0230] The composite filler is a mixture of mineral powder, rice husk, and sugarcane bagasse.
[0231] The mineral powder was purchased from Huixin Mining Processing Plant in Lingshou County; it is grade S95.
[0232] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0233] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0234] The preparation process of paving asphalt filler is as follows:
[0235] Step 1): Add 3.5 kg asphalt, 0.55 kg wood wax oil, 0.15 kg perilla seed oil and 0.45 kg pine oil to a mixing tank, heat to 155℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0236] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of mineral powder, 4.5kg of rice husk, and 3.5kg of sugarcane bagasse to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0237] Comparative Example 6
[0238] A paving asphalt filler is made from the following components:
[0239] Asphalt, aggregates, compound oils, and compound fillers.
[0240] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0241] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0242] Large crushed stone has a particle size of 20-30mm.
[0243] The particle size of medium-sized crushed stone is 10-20mm.
[0244] The particle size of the small gravel is 5-10mm.
[0245] The fine sand is river sand, 10-20 mesh.
[0246] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0247] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0248] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0249] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0250] The composite filler is a mixture of walnut shell powder, marble powder, and sugarcane bagasse.
[0251] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0252] Marble powder, 80 mesh, was purchased from Yutong Mineral Products Processing Plant in Lingshou County.
[0253] The sugarcane bagasse was purchased from Guangxi Qiumingshan Agricultural Development Co., Ltd.
[0254] The preparation process of paving asphalt filler is as follows:
[0255] Step 1): Add 3.5 kg asphalt, 0.55 kg wood wax oil, 0.15 kg perilla seed oil and 0.45 kg pine oil to a mixing tank, heat to 155℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0256] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of walnut shell powder, 4.5kg of marble powder, and 3.5kg of sugarcane bagasse to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0257] Comparative Example 7
[0258] A paving asphalt filler is made from the following components:
[0259] Asphalt, aggregates, compound oils, and compound fillers.
[0260] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0261] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0262] Large crushed stone has a particle size of 20-30mm.
[0263] The particle size of medium-sized crushed stone is 10-20mm.
[0264] The particle size of the small gravel is 5-10mm.
[0265] The fine sand is river sand, 10-20 mesh.
[0266] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0267] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0268] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0269] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0270] The composite filler is a mixture of walnut shell powder, rice husk, and glass fiber.
[0271] The walnut shell powder was purchased from Shijiazhuang Zede Mineral Products Co., Ltd., 100 mesh.
[0272] The rice husks were purchased from Shuochuan Mineral Products Processing Plant in Lingshou County.
[0273] The fiberglass was purchased from Lingshou County Jiashuo Building Materials Processing Co., Ltd., with a length of 3mm.
[0274] The preparation process of paving asphalt filler is as follows:
[0275] Step 1): Add 3.5 kg asphalt, 0.55 kg wood wax oil, 0.15 kg perilla seed oil and 0.45 kg pine oil to a mixing tank, heat to 155℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0276] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of walnut shell powder, 4.5kg of rice husk, and 3.5kg of glass fiber to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is homogeneous to obtain paving asphalt filler.
[0277] Comparative Example 8
[0278] A paving asphalt filler is made from the following components:
[0279] Asphalt, aggregates, compound oils, and compound fillers.
[0280] The asphalt is high-temperature asphalt, purchased from Hebei Fengtaiyuan Energy Technology Co., Ltd., model: zl001.
[0281] The aggregate is a mixture of large crushed stone, medium crushed stone, small crushed stone, and fine sand.
[0282] Large crushed stone has a particle size of 20-30mm.
[0283] The particle size of medium-sized crushed stone is 10-20mm.
[0284] The particle size of the small gravel is 5-10mm.
[0285] The fine sand is river sand, 10-20 mesh.
[0286] The compound oil is a blend of wood wax oil, perilla seed oil, and pine oil.
[0287] The wood wax oil was purchased from Shanghai Cherish Chemical Co., Ltd.
[0288] The perilla seed oil was purchased from Hubei Xinghengye Technology Co., Ltd.
[0289] The pine oil was purchased from Jiangsu Pules Biotechnology Co., Ltd.
[0290] The composite filler is a mixture of mineral powder, marble powder, and glass fiber.
[0291] The mineral powder was purchased from Huixin Mining Processing Plant in Lingshou County; it is grade S95.
[0292] Marble powder, 80 mesh, was purchased from Yutong Mineral Products Processing Plant in Lingshou County.
[0293] The fiberglass was purchased from Lingshou County Jiashuo Building Materials Processing Co., Ltd., with a length of 3mm.
[0294] The preparation process of paving asphalt filler is as follows:
[0295] Step 1): Add 3.5 kg asphalt, 0.55 kg wood wax oil, 0.15 kg perilla seed oil and 0.45 kg pine oil to a mixing tank, heat to 155℃, rotate at 20 r / min, stir for 10 min, mix evenly to obtain a premix.
[0296] Step 2): Add 21kg of large crushed stone, 25kg of medium crushed stone, 18kg of small crushed stone, 31kg of fine sand, 2.5kg of mineral powder, 4.5kg of marble powder, and 3.5kg of glass fiber to the premix. Maintain a constant temperature of 155℃ and a rotation speed of 40r / min, and stir for 10min until the mixture is uniform to obtain paving asphalt filler.
[0297] Experiment 1
[0298] The flexural strain energy density of the samples made from paving asphalt fillers in each example and comparative example was tested according to GB / T 38948-2020 "Evaluation Method for Low-Temperature Crack Resistance of Asphalt Mixtures".
[0299] Test temperature: -10℃.
[0300] Experiment 2
[0301] Rutting tests were conducted on asphalt mixture samples made from paving asphalt fillers in each embodiment and comparative example under standard conditions of 60℃ and 0.7MPa using a rutting tester.
[0302] During sample preparation, asphalt concrete is poured into a mold, compacted, and left to stand for 90 days to obtain the sample. The dynamic stability of the sample is then tested and recorded (times / mm).
[0303] The specific test data for Experiments 1-2 are detailed in Table 1.
[0304] Table 1
[0305]
[0306]
[0307] According to the data comparison between the embodiments and comparative examples in Table 1, the bending strain energy density of each embodiment is significantly higher than that of comparative examples 1-4. It can be seen that by using wood wax oil, perilla seed oil and pine oil, each embodiment can effectively improve the low-temperature crack resistance of asphalt filler. When used to fill the edge of manhole cover, the asphalt filler at the edge of the manhole cover is not easy to crack and has better quality.
[0308] The dynamic stability of each embodiment is higher than that of comparative examples 1-4. It can be seen that by using wood wax oil, perilla seed oil and pine oil, each embodiment can also improve the deformation resistance of asphalt filler to a certain extent, and the pressure bearing capacity is higher. It is not easy to cause rutting and depression. When used to fill the edge of manhole cover, the asphalt filler at the edge of the manhole cover is not easy to be depressed and deformed, and the quality is better.
[0309] The dynamic stability of each embodiment is significantly higher than that of comparative examples 5-8. The dynamic stability of each embodiment is significantly improved by compounding walnut shell powder, rice husk and sugarcane bagasse. This significantly improves the deformation resistance and pressure bearing capacity of the asphalt filler, making it less prone to rutting and depression. When used to fill the edge of manhole cover, the asphalt filler at the edge of the manhole cover is less prone to depression and deformation, making it durable, long-lasting, and reducing the frequency of repairs, resulting in better quality.
[0310] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.
Claims
1. A paving asphalt filler, characterized by: Comprise the following components in mass fraction: Asphalt 3-4 parts; Aggregate 91-99 parts; Compound oil 1-1.3 parts; Compound filler 9-12 parts; The compound oil is a compound of wood wax oil, perilla seed oil and pine oil; The mass ratio of the wood wax oil, perilla seed oil and pine oil is 0.5-0.6:0.1-0.2:0.4-0.
5.
2. A paving asphalt filler according to claim 1, characterized in that: The compound filler is a compound of walnut shell powder, rice husk and bagasse.
3. A paving asphalt filler as claimed in claim 2, characterised in that: The mass ratio of the walnut shell powder, rice husk and bagasse is 2-3:4-5:3-4.
4. A paving asphalt filler as defined in claim 1, wherein: The aggregate is a compound of large broken stone, medium broken stone, small broken stone and fine sand, the particle size of the large broken stone is 20-30mm, the particle size of the medium broken stone is 10-20mm, and the particle size of the small broken stone is 5-10mm.
5. A paving asphalt filler as claimed in claim 4, characterised in that: The mass ratio of the large broken stone, medium broken stone, small broken stone and fine sand is 20-22:24-26:17-19:30-32.
6. A process for the preparation of a paving asphalt filler according to any one of claims 1 to 5, characterized in that: Comprise the following steps: Step 1), heat and mix asphalt and compound oil to obtain a premix; Step 2), put aggregate and compound filler into the premix and mix uniformly to obtain the paving asphalt filler.
7. A process for the preparation of a paving asphalt filler according to claim 6, characterized in that: In step 1), the heating temperature is 150-160℃.
Citation Information
Patent Citations
Asphalt concrete pavement construction method
CN112012068A
process for producing asphalt mixtures
FR923838A