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Preparation process of ceramsite asphalt pavement material

A technology of asphalt pavement and preparation process, which is applied in the field of preparation of ceramsite asphalt pavement materials, which can solve problems such as aging, easy water seepage and cracks on the pavement, and achieve the effect of increasing interlayer aggregation, improving mechanical properties, and high mechanical properties

Inactive Publication Date: 2021-03-26
武汉极限光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many deficiencies in the asphalt pavement materials currently used, which are prone to various forms of cracks, and the pavement is prone to water seepage and aging

Method used

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  • Preparation process of ceramsite asphalt pavement material

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Comparison scheme
Effect test

Embodiment 1

[0032] A preparation process of ceramsite asphalt pavement material, comprising the following steps:

[0033] The first step is to prepare the following raw materials by weight: 30 parts of asphalt, 1 part of modified nano filler, 10 parts of modified shale ceramsite, 5 parts of SBS modifier, 3 parts of basalt fiber, 2 parts of diatomite, rubber powder 5 parts, 0.3 parts of dispersant, 0.1 part of crosslinking agent, 0.1 part of antioxidant;

[0034]The second step is to add asphalt into the reaction kettle, control the reaction temperature to 180°C, add rubber powder and SBS modifier to the reaction kettle, and react for 2 hours at a speed of 1000r / min, then add dispersant, Cross-linking agent and antioxidant, under the condition of constant temperature and rotating speed, react for 20 minutes to obtain the basic pavement material;

[0035] Step 3: Add modified nano filler, modified shale ceramsite, basalt fiber and diatomaceous earth to the basic pavement material obtained ...

Embodiment 2

[0048] A preparation process of ceramsite asphalt pavement material, comprising the following steps:

[0049] The first step, prepare the following raw materials by weight, 35 parts of asphalt, 1 part of modified nano filler, 11 parts of modified shale ceramsite, 6 parts of SBS modifier, 4 parts of basalt fiber, 3 parts of diatomite, rubber powder 6 parts, 0.4 parts of dispersant, 0.2 parts of crosslinking agent, 0.2 parts of antioxidant;

[0050] The second step is to add asphalt into the reaction kettle, control the reaction temperature to 185°C, add rubber powder and SBS modifier to the reaction kettle, and react for 2.5 hours at a speed of 1200r / min, then add dispersant to the reaction kettle , cross-linking agent and antioxidant, under the condition of constant temperature and rotation speed, react for 23 minutes to obtain the basic pavement material;

[0051] Step 3: Add modified nano filler, modified shale ceramsite, basalt fiber and diatomaceous earth to the basic pav...

Embodiment 3

[0064] A preparation process of ceramsite asphalt pavement material, comprising the following steps:

[0065] The first step, prepare the following raw materials by weight, 40 parts of asphalt, 1.5 parts of modified nano filler, 12 parts of modified shale ceramsite, 8 parts of SBS modifier, 4 parts of basalt fiber, 3 parts of diatomite, rubber powder 8 parts, 0.4 parts of dispersant, 0.2 parts of crosslinking agent, 0.2 parts of antioxidant;

[0066] The second step is to add asphalt into the reaction kettle, control the reaction temperature to 190°C, add rubber powder and SBS modifier to the reaction kettle, and react for 3 hours at a speed of 1300r / min, then add dispersant, Cross-linking agent and antioxidant, under the condition of constant temperature and rotating speed, react for 25 minutes to obtain the basic pavement material;

[0067] Step 3: Add modified nano filler, modified shale ceramsite, basalt fiber and diatomaceous earth to the basic pavement material obtained...

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Abstract

The invention discloses a preparation process of a ceramsite asphalt pavement material. The preparation proces comprises the following steps: preparing the following raw materials in parts by weight:30-50 parts of asphalt, 1-2 parts of modified nano filler, 10-13 parts of modified shale ceramsite, 5-10 parts of SBS modifier, 3-5 parts of basalt fiber, 2-4 parts of diatomite, 5-10 parts of rubberpowder, 0.3-0.5 part of dispersing agent, 0.1-0.3 part of cross-linking agent and 0.1-0.3 part of antioxidant; the ceramsite asphalt pavement material is prepared by mixing the modified shale ceramsite, the modified nano-filler, asphalt and other fillers, and the modified nano-filler is added into the ceramsite asphalt pavement material, so that the mechanical property, barrier property and thermal stability of the ceramsite asphalt pavement material are improved, and the ceramsite asphalt pavement material has fatigue resistance, low-temperature crack resistance and water stability by utilizing a special physical structure of the diatomite and high damping and shock absorption characteristics of the basalt fibers.

Description

technical field [0001] The invention belongs to the technical field of pavement material preparation, and in particular relates to a preparation process of ceramsite asphalt pavement material. Background technique [0002] Asphalt pavement refers to various types of road surfaces paved with asphalt materials mixed with mineral materials. Asphalt binder improves the ability of paving aggregates to resist road damage from driving and natural factors, making the road smooth, less dusty, impermeable and durable. Therefore, asphalt pavement is the most widely used high-grade pavement in road construction. [0003] Ceramsite, as the name suggests, is ceramic particles, which is a kind of lightweight aggregate produced by foaming in a rotary kiln. The characteristics of low and high strength, especially because of the small density of ceramsite, the interior is porous, the shape and composition are relatively uniform, and it has a certain strength and firmness, so it has light we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B20/02C04B14/10C04B18/02
CPCC04B26/26C04B20/023C04B18/023C04B14/106C04B2111/0075C04B2201/50C04B14/4643C04B14/08C04B18/22C04B2103/408C04B2103/608C04B24/00
Inventor 吴苏州李娇任嵬
Owner 武汉极限光科技有限公司
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