Cement stabilized macadam material and preparation process thereof

A technology for cement-stabilized crushed stone and a preparation process, which is applied in the field of roadbed materials, can solve problems such as the overall quality reduction of cement-stabilized crushed stone, achieve good compounding and synergistic effects, improve structural strength and stability, and reduce the effect of impurity content.

Inactive Publication Date: 2019-07-12
上海家根路基材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problem in the prior art that the overall quality of cement-stabilized crushed stone is greatly reduced due to the direct mixing of recycled aggregate with voids and micro-cracks with cement, the first purpose of the present invention is to provide a cement-stabilized crushed stone, through Add silicone resin solution and rubber powder, and play a good compounding and synergistic effect between the components to solve the above technical problems, which is conducive to environmental protection and has good quality

Method used

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  • Cement stabilized macadam material and preparation process thereof
  • Cement stabilized macadam material and preparation process thereof
  • Cement stabilized macadam material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: A cement stabilized crushed stone material. The components and their corresponding weight parts are shown in Table 1, and are prepared through the following steps:

[0050] Step 1. Mix and dry the new aggregates, stone chips and Portland cement in the drying barrel with the corresponding weight parts of new aggregate, stone chips and Portland cement. The rotational speed of the drying barrel is 900 rpm, the time is 30 minutes, and the temperature is controlled at 90 ℃ to obtain the mixture. material;

[0051] Step 2: Add polypropylene fiber and rubber powder in corresponding parts by weight to the mixture, stir and dry, control the temperature at 80°C, the time is 20min, and the stirring speed is 600rpm to obtain the base material;

[0052] Step 3: Put the corresponding parts by weight of water and the silicone resin solution into a stirring tank for stirring for 10 minutes and stirring at 300 rpm to obtain a mixed solution;

[0053] Step 4: Soak the recycled aggrega...

Embodiment 2-8

[0055] Example 2-8: A cement stabilized crushed stone material. The difference from Example 1 is that the components and their corresponding weight parts are shown in Table 1.

[0056] Table 1 Components and parts by weight in Examples 1-8

[0057]

Embodiment 9

[0058] Example 9: A cement stabilized crushed stone material. The difference from Example 1 is that the new aggregate in step one is mainly composed of limestone with a particle size range of 5-15mm and 15-31.5mm by weight. The ratio is 1:1.8.

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Abstract

The invention discloses a cement stabilized macadam material and a preparation process thereof, relates to the technical field of roadbed materials, and solves the problem that the overall quality ofcement stabilized macadam is greatly reduced due to direct mixing of cement and recycled aggregates with voids and microcracks. The cement stabilized macadam material is prepared from the following components in parts by weight: 10-20 parts of new aggregate, 4-8 parts of silicate cement, 3-5 parts of water, 30-35 parts of aggregate chips, 40-50 parts of recycled aggregate, 3-7 parts of fiber filler, 2-6 parts of an organic silicon resin solution and 4-8 parts of rubber powder. The cement stabilized macadam material is mainly prepared from the recycled aggregate, is green and environmentally friendly, has good structural strength integrally after use, is less likely to produce dry shrinkage cracks during use and has good quality.

Description

Technical field [0001] The invention relates to the technical field of roadbed materials, more specifically, it relates to a cement stabilized crushed stone material and a preparation process thereof. Background technique [0002] Cement stabilized crushed stone refers to the crushed stone of a certain grade, mixed with sufficient cement and water, and the mixture obtained by mixing is obtained after compaction and curing. [0003] A Chinese invention patent with publication number CN106336173A discloses a high-performance cement stabilized crushed stone and its preparation method. It is mainly made of cement and aggregate as raw materials. In terms of mass percentage, the cement is 5-15%, and the rest is Aggregate, including: in parts by mass, 80-90 parts of construction waste recycled aggregate, and 10-20 parts of mountain gravel. The preparation method of cement stabilized crushed stone includes: using construction waste raw materials to crush to obtain construction waste recyc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/0075C04B2201/50C04B14/02C04B18/16C04B16/0633C04B24/24C04B24/42C04B14/46C04B14/48C04B16/0641
Inventor 邵坤刘绘管永强
Owner 上海家根路基材料有限公司
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