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Warm-mix environment-friendly asphalt and processing technique thereof

An asphalt processing and environmental protection technology, applied in building insulation materials, building components, climate change adaptation, etc., can solve the problems of high high and low temperature viscosity of finished products, high damage rate of construction equipment, easy segregation of EVA, etc., and achieve outstanding high temperature performance and excellent performance Environmental benefits, the effect of low mixing temperature

Inactive Publication Date: 2013-05-08
DONGGUAN TAIHE ASPHALTIC PROD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] ② The high and low temperature viscosity of the finished product is high;
[0007] ③ The storage stability is poor, EVA is easy to segregate, and the indicators vary greatly after storage;
[0009] ⑤ The mixing temperature is high, and it is difficult to mix evenly, resulting in low output;
[0010] During the construction process, the energy consumption is high, the damage rate of construction equipment is high, the requirements are high, and the compaction is difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A warm-mix environment-friendly asphalt meeting the requirements of PG76-16 and Ⅲ-D indicators, its formula is:

[0024] (The following contents are percentages by weight)

[0025] Polyethylene-polypropylene copolymer 3%

[0026] The rest is No. 70 asphalt

[0027] The processing technology is:

[0028] 1) Raise the temperature of base asphalt to 140°C;

[0029] 2) Add polyethylene-polypropylene copolymer according to the calculated ratio and stir for 0.5 hours to produce finished products;

[0030] 3) Detect various indicators of finished products, national standard indicators Ⅲ-D, PG indicators.

Embodiment 2

[0032] A warm-mix environment-friendly asphalt meeting the requirements of PG82-16 and Ⅲ-D indicators, its formula is:

[0033] (The following contents are percentages by weight)

[0034] Polyethylene-polypropylene copolymer 4.5%

[0035] The rest is No. 70 asphalt

[0036] The processing technology is:

[0037] 1) Raise the temperature of base asphalt to 145°C;

[0038] 2) Add polyethylene-polypropylene copolymer according to the calculated ratio and stir for 1 hour to produce finished products;

[0039] 3) Detect various indicators of finished products, national standard indicators Ⅲ-D, PG indicators.

Embodiment 3

[0041] A warm-mix environment-friendly asphalt meeting the requirements of PG88-16 and Ⅲ-D indicators, its formula is:

[0042] (The following contents are percentages by weight)

[0043] Polyethylene-polypropylene copolymer 6%

[0044] The rest is No. 90 asphalt

[0045] The processing technology is:

[0046] 1) Raise the temperature of base asphalt to 150°C;

[0047] 2) Add polyethylene-polypropylene copolymer according to the calculated ratio and stir for 1.5 hours to produce finished products;

[0048] 3) Detect various indicators of finished products, national standard indicators Ⅲ-D, PG indicators.

[0049] The energy saving and environmental protection effects of warm mixed special asphalt are:

[0050] ① The mixing temperature is lowered, which can save about 50% of energy consumption;

[0051] ② The reduction of paving compaction temperature can save fuel consumption by 50%-70%;

[0052] ③ Production and construction emissions are greatly reduced: the mixing te...

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Abstract

The invention provides warm-mix environment-friendly asphalt and a processing technique thereof. The invention relates to the technical field of engineering construction, and particularly relates to a road asphalt material widely applied to public roads and bridges. The warm-mix environment-friendly asphalt comprises 0.1%-6% of a polyethylene-polypropylene copolymer and the balance of 70# asphalt and 90# asphalt. The processing technique comprises the following steps of: heating matrix asphalt to 130-160 DEG C; proportionally adding the polyethylene-polypropylene copolymer to the heated matrix asphalt, and agitating the copolymer and the matrix asphalt for 0.5-2 hours for development, thus producing the finished product; and detecting the indexes, including a national index III-D and a PD index, of the finished product. The warm-mix environment-friendly asphalt has a good temperature-viscosity curve, and is energy-saving and environment-friendly; and compared with an original product, the warm-mix environment-friendly asphalt has the advantages that the production cost can be greatly reduced, and the performance is higher than that of an original American road construction standard (PG) product of the same type.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to a road asphalt material that can be widely used in roads and bridges. Background technique [0002] Since human civilization began to exist, the road --- has extended infinitely forward under people's feet. From the rough trails stepped on by people to the sidewalks paved with cobblestones, from the concrete poured on the cement pavement to the asphalt pavement widely used today, it proves the development history of human civilization from one side. [0003] We know that the asphalt pavement that is widely used today has the advantages of good wear resistance, no dust, good braking performance of motor vehicles, etc. However, it also has the disadvantage of poor high temperature performance. That is to say, in the hot summer, under the high temperature, the black road surface absorbs heat and softens. Under the rolling of motor vehicles, the soft road surface i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/08C08L23/14
CPCY02A30/30
Inventor 叶军翁力邓志明石路
Owner DONGGUAN TAIHE ASPHALTIC PROD
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