Fade resistant color cast non-pressing pavement material and preparation method thereof

A pavement material and pouring technology, applied in the field of materials, can solve the problems of fading colored pavement, high strength of cement concrete pavement, and affecting the bonding between aggregates, etc., to improve weather resistance and durability, rapid strength growth, and early high intensity effect

Inactive Publication Date: 2018-05-15
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pigment with fine particle size tends to aggregate in concrete with high viscosity, and the slurry that wraps the pigment fills the gap between the aggregates. On the one hand, the pigment is unevenly distributed, resulting in poor coloring effect on the road; on the other hand, it will affect the aggregate. The cohesion between them affects the overall strength of the concrete, and after a period of use, the colored pavement will fade, affecting the durability and weather resistance of the pavement
In addition, the cement concrete pavement itself has the characteristics of high strength, poor flexibility, long open traffic time, high construction environment requirements, and inconvenient maintenance, which limit the wide application of colored concrete

Method used

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  • Fade resistant color cast non-pressing pavement material and preparation method thereof
  • Fade resistant color cast non-pressing pavement material and preparation method thereof
  • Fade resistant color cast non-pressing pavement material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] Preparation method of anti-fading color pouring type pressure-free pavement material:

[0042] 1) Weigh 10-15 parts of the pigment according to the mass parts and put it into 5-10 parts of water, stir well until the color is uniform;

[0043] 2) Preparation of dry powder: Mix and stir 100 parts of cement, 15-20 parts of fly ash, 100-200 parts of sand, 15-20 parts of expansion agent, 0.05-0.1 part of demulsifier and 0.001-0005 parts of aluminum powder to obtain dry powder ;

[0044] 3) Put 100 parts of dry powder prepared in step 2), 0.1-0.5 parts of water reducing agent, 3-5 parts of antioxidant, and 6-10 parts of anti-ultraviolet aging agent into the mixer at a speed of 200r / min for 60s;

[0045] 4) Add the pigment water prepared in step 1) and 10-20 parts of emulsified asphalt to the raw materials in step 3), and stir in the mixer at a speed of 200r / min for 30s;

[0046] 5) Finally, stir at a speed of 400r / min for 180s to obtain the anti-fading color cast pavement m...

Embodiment 1

[0049] Take the following raw materials according to the parts by mass:

[0050]

[0051] Wherein the dry powder is formed by mixing and stirring the following materials by mass:

[0052]

[0053] Weigh each raw material according to the above mixing ratio, put the weighed pigment into water, and mix it fully and evenly until the color is uniform. Weigh each raw material according to the formula, first put the dry powder and additives (water reducing agent, antioxidant, anti-ultraviolet aging agent) into the mixer and dry mix at a speed of 200r / min for 60s. Then add the prepared colored water and emulsified asphalt, stir at a speed of 200r / min for 30s; finally stir at a speed of 400r / min for 180s. The properties of the prepared mortar materials were tested, and the results are shown in Table 1.

Embodiment 2

[0055] Take the following raw materials according to the parts by mass:

[0056]

[0057] Wherein the dry powder is formed by mixing and stirring the following materials by mass:

[0058]

[0059]

[0060] Weigh each raw material according to the above mixing ratio, put the weighed pigment into water, and mix it fully and evenly until the color is uniform. Weigh each raw material according to the formula, first put the dry powder and admixture into the mixer and dry mix at a speed of 200r / min for 60s. Then add the prepared colored water and emulsified asphalt, stir at a speed of 200r / min for 30s; finally stir at a speed of 400r / min for 180s. The properties of the prepared mortar materials were tested, and the results are shown in Table 1.

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Abstract

The invention discloses a fade resistant color cast non-pressing pavement material and a preparation method thereof. The method comprises the following steps: putting 10 to 15 parts of pigment into 5to 10 parts of water, and sufficiently stirring till the color is uniform; uniformly mixing and stirring 100 parts of cement, 15 to 20 parts of pulverized fuel ash, 100 to 200 parts of sand, 15 to 20parts of an expanding agent, 0.05 to 0.1 part of an emulsion breaker, and 0.001 to 0.005 part of aluminum powder, so as to obtain dry powder; performing dry mixing on 100 parts of the dry powder, 0.1to 0.5 part of a water reducer, 3 to 5 parts of an antioxidant, and 6 to 10 parts of an ultraviolet antiager in a mixer; adding prepared pigment water and 10 to 20 parts of emulsified asphalt into theraw materials, and uniformly stirring, so as to obtain the fade resistant color cast non-pressing pavement material. The fade resistant color cast non-pressing pavement material can be used at normaltemperature, is convenient to operate and low in construction energy consumption, and cannot cause environment pollution. The fade resistant color cast non-pressing pavement material further has excellent expansion degree, elasticity modulus, compressive strength and bending strength.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to an anti-fading color pouring type pressure-free pavement material and a preparation method thereof. Background technique [0002] With the development of urban traffic, the requirements for road surface decoration are also increasing. The traditional road surface has a single color, which is not in harmony with the surrounding environment, which affects the visual beauty, and is easy to cause visual fatigue of drivers and even traffic accidents. In order to create a more comfortable and humanized traffic environment, colored pavements are used more and more widely, and play an important role in planning traffic and beautifying the environment, such as sidewalks, bus lanes, and bicycle lanes of different colors. Visual effects, but also to ensure driving safety and traffic efficiency. [0003] Colored concrete is mostly made of white cement mixed with colored pigmen...

Claims

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Application Information

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IPC IPC(8): C04B28/04E01C7/00
CPCC04B28/04C04B2111/0075C04B2201/50E01C7/00C04B18/08C04B14/06C04B22/124C04B22/04C04B2103/0068C04B24/36C04B2103/302C04B2103/54C04B2103/608C04B2103/605
Inventor 卢东赵媛王帅飞何璐冯国平徐宁贾江波国洋
Owner CHANGAN UNIV
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