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Preparation method of flame-retardant and wear resistant foam asphalt

A technology of foamed asphalt and asphalt, which is applied in the field of preparation of flame-retardant and wear-resistant foamed asphalt, can solve the problems of high melting temperature, waste, and high viscosity of old asphalt materials, and achieve excellent wear resistance and flame retardancy, expansion rate and half-life High and good stability effect

Inactive Publication Date: 2018-10-30
FOSHAN LUBANG ASPHALT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A certain amount of harmful substances will be discharged during the high-temperature heating process, which will seriously affect the health of construction workers and bring a series of environmental problems; Problems such as high viscosity make the recovery rate of asphalt old materials low and cause a lot of waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The preparation method of flame-retardant and wear-resistant foamed asphalt in the present embodiment is:

[0037] Step 1, weighing raw materials according to the following components and parts by mass:

[0038] No. 70 base asphalt: 88 parts

[0039] Sodium bicarbonate: 1.5 parts

[0040] Butyl xanthate: 5 parts

[0041] Calcium chloride: 4 parts

[0042] 10Z molecular sieve: 4 parts

[0043] Methyltrichlorosilane: 6 parts

[0044] Flame retardant: 3 parts

[0045] Filler: 10 servings

[0046] Water: 5 parts;

[0047] The flame retardant is formed by mixing ammonium octamolybdate and decabromodiphenylethane in a mass ratio of 1:1.3;

[0048] The filler is prepared by ball milling polyvinyl fluoride, silicon oxide, water glass, and graphite powder in a ceramic ball mill for 1.5 hours in a mass ratio of 1:0.5:0.3:0.1.

[0049]Step 2, preparation of the mixed adsorbent: add the calcium chloride, 10Z molecular sieve, and methyltrichlorosilane into a microwave irrad...

Embodiment 2

[0055] The preparation method of flame-retardant and wear-resistant foamed asphalt in the present embodiment is:

[0056] Step 1, weighing raw materials according to the following components and parts by mass:

[0057] No. 70 base asphalt: 90 parts

[0058] Sodium bicarbonate: 2 parts

[0059] Butyl xanthate: 10 parts

[0060] Calcium chloride: 2.5 parts

[0061] 10Z molecular sieve: 6 parts

[0062] Methyltrichlorosilane: 4 parts

[0063] Flame retardant: 4 parts

[0064] Filler: 8 servings

[0065] Water: 5 parts;

[0066] The flame retardant is formed by mixing ammonium octamolybdate and decabromodiphenylethane in a mass ratio of 1:1.3;

[0067] The filler is prepared by ball milling polyvinyl fluoride, silicon oxide, water glass, and graphite powder in a ceramic ball mill for 1.5 hours in a mass ratio of 1:0.5:0.3:0.1.

[0068] Step 2, preparation of the mixed adsorbent: add the calcium chloride, 10Z molecular sieve, and methyltrichlorosilane into a microwave irra...

Embodiment 3

[0074] The preparation method of flame-retardant and wear-resistant foamed asphalt in the present embodiment is:

[0075] Step 1, weighing raw materials according to the following components and parts by mass:

[0076] No. 70 base asphalt: 85 parts

[0077] Sodium bicarbonate: 2.5 parts

[0078] Isopropyl xanthate: 3 parts

[0079] Calcium Chloride: 3 parts

[0080] 4A molecular sieve: 8 parts

[0081] Methyltrichlorosilane: 3 parts

[0082] Flame retardant: 7 parts

[0083] Filler: 6 servings

[0084] Water: 6 parts;

[0085] The flame retardant is formed by mixing ammonium octamolybdate and decabromodiphenylethane in a mass ratio of 1:1.3;

[0086] The filler is prepared by ball milling polyvinyl fluoride, silicon oxide, water glass, and graphite powder in a ceramic ball mill for 1.5 hours in a mass ratio of 1:0.5:0.3:0.1.

[0087] Step 2, preparation of mixed adsorbent: add the calcium chloride, 4A molecular sieve, and methyltrichlorosilane into a microwave radiati...

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PUM

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Abstract

The invention discloses a preparation method of flame-retardant and wear resistant foam asphalt. The preparation method comprises the steps of firstly taking and weighing asphalt, blowing agent, alkylxanthate, calcium chloride, molecular sieve, silicone resin, flame retardant, filler and water by weight, secondly adding the calcium chloride, the molecular sieve and the silicone resin to a microwave-radiation reaction vessel and then heating, stirring and reacting to obtain a hybrid adsorbent, thirdly heating the asphalt to 110 to 120 DEG C and then adding sequentially the blowing agent, thealkyl xanthate, the flame retardant and the filler to produce modified asphalt, fourthly stirring and mixing the hybrid adsorbent in step two and the modified asphalt in step three under 110 to 120 DEG C and then adding water to produce the flame-retardant and wear resistant foam asphalt. The flame-retardant and wear resistant foam asphalt has the advantages of high expansion rate, large half lifevalue, good liquidity, high wettability, good flame-retardant and smoke suppression effect, and excellent wear resistant property.

Description

technical field [0001] The invention belongs to the technical field of asphalt, and in particular relates to a preparation method of flame-retardant and wear-resistant foam asphalt. Background technique [0002] With the rapid development of economy and society, road construction has become one of the key construction projects of national infrastructure. In the process of road construction, asphalt, as one of the basic raw materials, consumes a huge amount; at the same time, the annual road renovation also consumes a large amount of asphalt resources. During the use of traditional asphalt, it is usually necessary to raise the temperature of the asphalt to 180°C to ensure the normal spreading and rolling of the asphalt, so that the asphalt can be used normally. A certain amount of harmful substances will be discharged during the high-temperature heating process, which will seriously affect the health of construction workers and bring a series of environmental problems; Prob...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L83/04C08L27/18C08L27/16C08L27/14C08K13/06C08K7/24C08K3/16C08K5/38C08K9/12C08K3/38C08K3/28C08K3/22C08K5/03C08K5/1515C08K5/1539C08K3/36C08K3/34C08K3/04C08J9/12
CPCC08J9/125C08J9/0019C08J9/0023C08J9/0033C08J9/0061C08J9/0066C08J9/009C08J9/0095C08J2203/10C08J2395/00C08J2427/14C08J2427/16C08J2427/18C08J2483/04C08K3/04C08K3/28C08K3/34C08K3/36C08K5/03C08K5/1515C08K5/1539C08K5/38C08K7/24C08K9/12C08K13/06C08K2003/162C08K2003/2255C08K2003/387
Inventor 何岳霖何元发陈宇轩杜小挺傅世君
Owner FOSHAN LUBANG ASPHALT CO LTD
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