Crack seamless cold-welding construction technology for semi-rigid base asphalt pavement
A semi-rigid base and construction technology technology, applied in the direction of roads, roads, pavement details, etc., can solve the problems of not detecting the depth and compactness of the filling material, the cracks are easy to crack again, and the properties are different. Solve the problem of structural damage, strong permeability and expansion, high consistency of thermal expansion and cold contraction
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Embodiment 1
[0034] A kind of non-trace cold welding construction process of semi-rigid base asphalt pavement cracks in the present invention is divided into the trace-free cold welding of cracks with a width greater than 5 mm and the trace-free cold welding of cracks with a width less than 5 mm: wherein the trace-free cold welding of cracks with a width greater than 5 mm Welding construction process: it includes the following steps:
[0035] Step 1. Detection: Use ground penetrating radar to detect the position, depth and width of cracks in the semi-rigid base and asphalt surface, and record them;
[0036] Step 2, preparation and selection of welding material: determine the used welding material according to the width of the crack detected in step 1: non-mixed polymer concrete prepared from aggregates with a material diameter of 0.5-3 mm for cracks with a width greater than 5 mm, the The non-mixed polymer concrete is made of 80kg of aggregates with a material diameter of 0.5-3mm, 15kg of ...
Embodiment 2
[0053] A kind of non-trace cold welding construction process of semi-rigid base asphalt pavement cracks in the present invention is divided into the trace-free cold welding of cracks with a width greater than 5 mm and the trace-free cold welding of cracks with a width less than 5 mm: wherein the trace-free cold welding of cracks with a width greater than 5 mm Welding construction process: it includes the following steps:
[0054] Step 1. Detection: Use ground penetrating radar to detect the position, depth and width of cracks in the semi-rigid base and asphalt surface, and record them;
[0055] Step 2, preparation and selection of welding material: determine the used welding material according to the width of the crack detected in step 1: non-mixed polymer concrete prepared from aggregates with a material diameter of 0.5-3 mm for cracks with a width greater than 5 mm, the The non-mixed polymer concrete is made of 83kg of aggregates with a material diameter of 0.5-3mm, 13kg of ...
Embodiment 3
[0072] A kind of non-trace cold welding construction process of semi-rigid base asphalt pavement cracks in the present invention is divided into the trace-free cold welding of cracks with a width greater than 5 mm and the trace-free cold welding of cracks with a width less than 5 mm: wherein the trace-free cold welding of cracks with a width greater than 5 mm Welding construction process: it includes the following steps:
[0073] Step 1. Detection: Use ground penetrating radar to detect the position, depth and width of cracks in the semi-rigid base and asphalt surface, and record them;
[0074] Step 2, preparation and selection of welding material: determine the used welding material according to the width of the crack detected in step 1: non-mixed polymer concrete prepared from aggregates with a material diameter of 0.5-3 mm for cracks with a width greater than 5 mm, the For every 100kg of non-mixing polymer concrete, 85kg of aggregates with a material diameter of 0.5-3mm, 10...
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