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Novel flame-retardant warm mix asphalt and preparation method thereof

A new type of warm mix asphalt technology, applied in building thermal insulation materials, building components, climate change adaptation and other directions, can solve the problems of poor flame retardant effect, poor adhesion between asphalt and stone, and achieve good flame retardant performance.

Active Publication Date: 2016-08-24
成都科宏达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The new flame-retardant warm-mix asphalt has good flame-retardant performance, and after mixing, it fully meets the warm-mix asphalt formula in "GB / T29051-2012 Flame-Retardant Asphalt Concrete for Roads", and overcomes the poor mixing of conventional flame retardants and asphalt It leads to the problem of poor flame retardant effect, and solves the problem of poor adhesion between asphalt and stone after adding a single flame retardant

Method used

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  • Novel flame-retardant warm mix asphalt and preparation method thereof
  • Novel flame-retardant warm mix asphalt and preparation method thereof
  • Novel flame-retardant warm mix asphalt and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0020] In this example, the raw material components and dosages for preparing the new flame-retardant warm-mix asphalt are:

[0021] 760kg of warm asphalt; 65kg of silicone resin; 170kg of diatomite (325 mesh, produced by Tianda filter aid factory in Xinle City, Hebei Province); 5kg of viscosity reducer.

[0022] The preparation process is as follows: first premix the silicone resin and the viscosity reducer, add it to the warm asphalt at about 60°C and mix it thoroughly through the mixing equipment, and finally add diatomaceous earth to the asphalt mixture, and heat it at about 60°C Quickly mix and fully stir in the mixer to obtain flame-retardant warm-mix asphalt, and then seal it for storage.

Embodiment 2

[0024] The preparation process is the same as in Example 1, except that the consumption of the novel flame-retardant warm-mix asphalt is:

[0025] 500kg of warm asphalt; 65kg of silicone resin; 170kg of diatomite (325 mesh, produced by Tianda filter aid factory in Xinle City, Hebei Province); 5kg of viscosity reducer.

Embodiment 3

[0027] The preparation process is the same as in Example 1, except that the consumption of the novel flame-retardant warm-mix asphalt is:

[0028] 350kg of warm asphalt; 65kg of silicone resin; 170kg of diatomaceous earth (325 mesh, produced by Tianda filter aid factory in Xinle City, Hebei Province); 5kg of viscosity reducer.

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Abstract

The invention belongs to the technical field of chemical preparation, and relates to the field of pavement materials of roads, bridges or tunnels, in particular to novel flame-retardant warm mix asphalt and a preparation method thereof. The novel flame-retardant warm mix asphalt is prepared from, by weight, 75-85 parts of warm mix asphalt, 5-10 parts of silicon resin, 15-20 parts of kieselguhr and 0.5-2 parts of viscosity reducer. By adding a composite flame retardant and a relevant surface active agent to warm mix asphalt, the novel flame-retardant warm mix asphalt is prepared and can be used for tunnel construction. Due to the formula, the problems that because the mixing effect of a conventional inorganic or single organic flame retardant and warm mix asphalt is not good, the mixing amount of the flame retardant is increased and the flame retardance effect is poor are solved; the problem that because a single flame retardant component is added to asphalt, the adhesion of stone and asphalt becomes poor is solved.

Description

technical field [0001] The invention belongs to the technical field of chemical preparation, especially the field of paving materials for roads, bridges or tunnels, and specifically relates to a novel flame-retardant warm-mix asphalt and a preparation method thereof. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof and anti-corrosion organic gelling material. Pitch can be mainly divided into three types: coal tar pitch, petroleum pitch and natural pitch. Among them, coal tar pitch is a by-product of coking. Petroleum asphalt is the residue after distillation of crude oil. Natural bitumen is stored underground, and some form ore layers or accumulate on the surface of the earth's crust. Asphalt is mainly used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L83/04C08K3/34
CPCC08L95/00C08L2201/02C08L83/04C08K3/34Y02A30/30
Inventor 张豫红白芸雷欣卢阳
Owner 成都科宏达科技有限公司