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Preparation process and paving method of normal temperature asphalt capable of forming high porosity and high modulus

A normal temperature asphalt, preparation technology, applied in the direction of ceramic products, other household utensils, climate sustainability, etc., to achieve the effect of flexible and fast construction, flexible construction, high strength

Active Publication Date: 2022-08-09
南通福伦利新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems in the prior art of using heat-modified asphalt irrigation to solve road diseases such as serious rutting and congestion in special areas such as light-controlled areas and crossroads.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]Example 1: Non-ionic modified polyurethane thickener is not used

[0043] 1) According to the oil stone ratio of 4.0% (without water), add the weighed wear-resistant normal temperature asphalt composite emulsion without any non-ionic modified polyurethane thickener and OGFC speed-strength mixed aggregate into the cement forced mixer. Stir for 5 minutes, and after the material is evenly stirred, open the material door to discharge;

[0044] 2) Using a tamping machine, the mixture discharged from the cement forced mixer is directly tamped. The surface area is about 2 square meters and the thickness is about 6 cm. After one week, the core is drilled and sampled. The measured void ratio is 13.2%, and the Marshall stability is 5.9kN.

Embodiment 2

[0045] Example 2: FLL fast curing agent is not used

[0046] 1) According to the whetstone ratio of 4.0% (without water), mix the weighed wear-resistant normal temperature asphalt composite emulsion with 0.3%wt of non-ionic modified polyurethane thickener added, and OGFC fast-strength mixture without FLL fast curing agent. Add the material into the cement forced mixer and mix together for 5 minutes. After the material is evenly mixed, open the material door to discharge the material;

[0047] 2) Using a tamping machine, the mixture discharged from the cement forced mixer is directly tamped. The surface area is about 2 square meters and the thickness is about 6 cm. After one week, the core is drilled for sampling. At this time, the measured void ratio is 25.1%, and the Marshall is stable. Degree is 3.3kN.

Embodiment 3

[0048] Embodiment 3: Both non-ionic modified polyurethane thickener and FLL fast curing agent are used

[0049] 1) According to the whetstone ratio of 4.0% (without water), weigh the wear-resistant normal temperature asphalt composite emulsion with 0.3%wt non-ionic modified polyurethane thickener added, and OGFC speed-strength mixed aggregate (added 18% wt FLL fast curing agent), add it to the cement forced mixer, mix together for 5 minutes, after the material is evenly mixed, open the material door to discharge;

[0050] 2) Using a tamping machine, the mixture discharged from the cement forced mixer is directly tamped. The surface area is about 2 square meters and the thickness is about 6 cm. After one week, the core was drilled and sampled. At this time, the void ratio was measured to be 26.7%, and the Marshall stability was 8.6 kN.

[0051] Obviously, among the three examples, the third example: using both the non-ionic modified polyurethane thickener and the high-porosity...

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Abstract

The invention discloses a preparation process and a paving method for forming normal temperature asphalt with high porosity and high modulus. The wear-resistant normal temperature asphalt composite water emulsion, the water-based epoxy resin curing agent and the appropriate amount of water are pre-mixed for 3 minutes, poured into the cement forced mixer, and continue to stir and disperse for more than 5 minutes; The OGFC speed-strength mixed aggregate is added to the cement forced mixer, and mixed with the above materials for 5-10 minutes. The invention utilizes the viscosity-enhancing and toughening effect of the water-based composite polymer to ensure high adhesion and high strength shared with the OGFC mixed aggregate, and at the same time, the high-efficiency thickener achieves the uniform dispersion of the coarse and fine aggregates, and can form The high void ratio ensures the strict requirements for new or repaired rut-resistant pavements in light control areas, intersections, etc.

Description

technical field [0001] The invention relates to the technical field of road construction and maintenance, in particular to a preparation process and a paving method of normal temperature asphalt capable of forming high porosity and high modulus. Background technique [0002] At present, there are rutting-resistant asphalt pavements with high porosity (20%-28% porosity) and can be poured into special cement mortar. Most of them are composite pavements filled with thermally modified asphalt, which mainly solve special problems such as light control areas and intersections. Serious rutting, congestion and other road diseases in the area. [0003] However, the amount of engineering in these areas is small, and the batches of heat-modified asphalt used are not large. If the furnace is prepared in the mixing building, the energy consumption will be large, and heating energy will not only be wasted. Moreover, it is very inconvenient to transport the hot asphalt mixture from the mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B38/00E01C19/10E01C19/48C04B111/20
CPCC04B28/065E01C19/1013E01C19/4833C04B2111/0075C04B2111/2038C04B24/36C04B24/281C04B24/282C04B14/00C04B18/22C04B2103/0068C04B38/00C04B38/0074Y02W30/91
Inventor 蔡海军刘志良沈峰吴新峰毛开明郁讳讳顾健健吴瑞琪
Owner 南通福伦利新材料有限公司
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