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A construction technology of cold mixing and paving of normal temperature asphalt pavement

A technology of normal temperature asphalt and construction technology, applied in the direction of roads, roads, coagulation pavement paved on site, etc., can solve the problems of easy generation of pockmarks on the surface and easy sticking of drum rollers.

Active Publication Date: 2017-01-18
蔡海军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compaction effect of the rubber tire roller is better, while the steel wheel roller is easy to stick to the material, and the surface is easy to produce pockmarks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] S234 Jianhu section room temperature asphalt slurry seal

[0027] 1. Project scale: 2km (45,000㎡) first-class road.

[0028] 2. Construction time: July 2013.

[0029] 3. Main defects of the original road: the surface layer is severely worn, with some vertical and horizontal cracks, most of which are horizontal cracks, and the ruts are 2-3cm deep.

[0030] Fourth, the treatment plan:

[0031] (1) Milling the original surface to eliminate rutting;

[0032] (2) Oil filling and sealing of cracks;

[0033] (3) Add room temperature asphalt slurry seal

[0034] 5. Construction machinery: one milling machine, two transport vehicles, one seam cutting machine, one small seam filling machine, one hair dryer, one pneumatic pick machine, one 16-ton tire roller, 400L cement concrete forced mixer One, one slurry seal paver, one asphalt distribution truck.

[0035] 6. Construction and sequence:

[0036] 1. Line drawing: use lime lines to draw the construction scope;

[0037] 2....

Embodiment 2

[0048] S331 Yandu section room temperature asphalt mixture AC-10 surface course

[0049] 1. Project scale: 850-meter-wide (7650 square meters) secondary road.

[0050] 2. Construction time: December 3-5, 2013.

[0051] 3. Existing road defects: the surface layer is relatively flat, severely worn, exposed in a large area, and has some vertical and horizontal cracks.

[0052] 4. Treatment plan: Fill larger cracks, sprinkle sticky layer oil, and add 2.5cm AC-10 normal temperature asphalt mixture surface.

[0053] 5. Construction machinery: one small joint filling machine, one blower, one asphalt distributor, one 400L forced mixer, one paver, one 10t steel drum roller, two 16t tire rollers tower.

[0054] 6. Construction and sequence:

[0055] 1. Clean the surface layer and fill the joints.

[0056] 2. Spray sticky layer oil.

[0057] 3. Draw the sideline and centerline of the paving.

[0058] 4. Measure the elevation. On the side, nail brazing brackets at intervals of 5m ...

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Abstract

The invention discloses a normal-temperature asphalt pavement cold-mixed and cold-paved construction technology. The construction technology comprises the following steps: preparation before construction, mixing of mixed materials, transportation of mixed materials, spreading and paving of the mixed materials, grinding and detection of results, wherein the blending refers to blending of a basalt aggregate, normal-temperature rapidly-strong asphalt liquid, a curing and water, with the sequence of firstly basalt aggregate, then the curing agent and water, and finally normal-temperature rapidly-strong asphalt liquid; the traditional thermal asphalt spreading and paving machine is adopted in and a manner of controlling the elevation under the guidance of a steel wire is adopted in the spreading and paving, and in the grinding step, a rubber tire type tire roller is adopted to roll the road surface. The normal-temperature asphalt pavement cold-mixed and cold-paved construction technology basically follows up the construction requirement and procedures of the hot-mix asphalt mixture pavement, the thermal-insulating heating link can be omitted due to no temperature control requirement, and the normal-temperature asphalt pavement cold-mixed and cold-paved construction technology is more convenient.

Description

technical field [0001] The invention relates to a construction technology of asphalt pavement, in particular to a construction technology of cold mixing and paving of asphalt pavement at normal temperature. Background technique [0002] Normal temperature asphalt pavement is cold-mixed cold-paved cold-pressed asphalt mixture pavement, which is significantly different from hot-mixed hot-paved asphalt mixture pavement, so it must have its special requirements in construction technology. [0003] The design, construction equipment and construction technology of normal temperature asphalt mixture were systematically studied, and a test road was paved. Theoretical research and practical experience have proved that hot-mix asphalt pavement construction machinery can be used for normal temperature asphalt pavement construction. The compaction effect of the rubber tire roller is better, but the steel wheel roller is easy to stick to the material, and the surface is easy to produce ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/26
CPCE01C7/26
Inventor 蔡海军
Owner 蔡海军