Cold-state splicing adhesive for new and old water-stabilized base layers of roads
A kind of adhesive, new and old technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem of unsuitable for fine and large-scale seam disposal, poor durability, low bond strength, etc. problem, achieving reduced risk of cracking, good durability, and increased tensile and shear strength
Active Publication Date: 2022-08-09
SHANDONG TRANSPORTATION INST +1
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AI Technical Summary
Problems solved by technology
At present, some scholars have made preliminary explorations on the splicing of old and new water-stabilized bases, but the method is too simple. They just use conventional cement slurry or smear emulsified asphalt. These materials have low bonding strength and poor durability, and are not suitable for fine, large-scale Therefore, it is necessary to study a joint bonding material for the characteristics of new and old water-stabilized base materials
Method used
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Embodiment 1
[0043] 【Raw materials and proportions】
[0044] Raw material description:
[0045] Red mud: electrolytic aluminum red mud, taken from Shandong Aluminum Factory;
[0046] Fly ash: from Jinan Thermal Power Plant;
[0047] Dispersible polymer powder: Wacker Chemical (China) Co., Ltd., model 4115N;
[0048] Other raw materials are commercially available conventional products.
[0049] The ratio of raw materials is shown in Table 1.
[0050] Table 1 Raw materials and proportions
[0051]
[0052]
[0053] 【Preparation】
[0054] Preparation of powder:
[0055] After weighing each powder raw material according to the material dosage in Table 1, the cement, fine sand, fly ash and red mud were first mixed and stirred evenly, and then the water reducing agent, swelling agent, thickening agent, defoaming agent 1, thixotropic agent were added. agent and redispersible latex powder, fully stirred to obtain the powders of Example 1-Example 9.
[0056] Preparation of liquid comp...
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The invention discloses a cold-state splicing adhesive for new and old water-stabilized base layers of roads, which belongs to the field of road engineering. The binder is composed of powder and liquid components, and the powder is composed of cement, fine sand, red mud, fly ash, water reducing agent, swelling agent, thickening agent, defoaming agent, thixotropic agent in a specific weight ratio. The liquid component is mixed with chloroether resin emulsion, water, defoamer II and stabilizer. Compared with the prior art, the cold-state splicing adhesive for the new and old water-stabilized base layers of the road prepared by the invention can realize the effective bonding of the joints of the old and new water-stabilized base layers, improve the integrity of the pavement structure, and reduce the longitudinal joints and seals of the road. It can improve the bearing capacity and life of the road, and has a good promotion and application value.
Description
technical field [0001] The invention relates to the field of road engineering, in particular to a cold-state splicing adhesive for new and old water-stabilized base layers of roads. Background technique [0002] With the gradual formation of my country's road network in recent years, the maintenance, repair and expansion of roads have become the main directions of road development in recent years. For the splicing of the sub-base, according to the traditional splicing and disposal methods for new and old water stability, most of them are geogrids or waterproof geotextiles. However, a large number of engineering practices have proved that the effectiveness of this disposal method is not ideal. Horizontal and vertical cracks often occur at the splices, which affect the service life of the road. Therefore, how to effectively dispose and splicing the longitudinal or transverse joints is a problem that needs to be solved. [0003] The vertical and horizontal splicing of the old an...
Claims
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IPC IPC(8): C04B28/04C04B18/04C04B24/26C04B111/70
CPCC04B28/04C04B2111/0075C04B2111/00672C04B2111/00637C04B2111/70C04B2201/50C04B14/06C04B18/0409C04B18/08C04B2103/302C04B2103/0068C04B24/383C04B24/42C04B22/00C04B24/2623C04B24/2682C04B24/32Y02W30/91
Inventor 董昭苏建明郭洪马士杰朱振祥韦金城王娜柳久伟苏春华徐书东李昌辉赵凯符东绪
Owner SHANDONG TRANSPORTATION INST