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A kind of colored pavement material and its preparation method
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A pavement material and color technology, applied in the direction of ceramic products, other household utensils, applications, etc., can solve problems such as the impact of pavement performance, and achieve the effect of dense texture and high strength
Active Publication Date: 2018-03-16
CHINA PETROLEUM & CHEM CORP +1
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[0015] The purpose of the present invention is to provide a colored pavement material containing phase change material and its preparation method to solve the problem of the influence of the addition of phase change material on the performance of the road surface
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Embodiment 1-3
[0046] Embodiment 1-3: preparation cementing material
[0047] The cementitious materials were prepared according to the materials and compositions shown in Table 1, and the cementitious materials A1, A2, and A3 were respectively obtained corresponding to Examples 1-3.
[0048] Table 1 Composition and formulation of cement
[0049]
Embodiment 4-6
[0050] Example 4-6: Preparation of colored cavity ceramic particles
[0051] The pottery clay used in this example is mainly silty clay mainly composed of kaolinite, montmorillonite, quartz, potassium albite feldspar, etc., and the dyes used are iron oxide red, chromium oxide green, chromium titanium yellow, etc.
[0052] Mix sodium bicarbonate powder, pottery clay powder, and dyes according to the ratio shown in Table 2; add an appropriate amount of water and knead through a kneader to make colored pottery clay containing sodium bicarbonate; pass the pottery clay after the previous step kneading through a screw extruder Extrude and make dense colored clay particles; heat the colored clay particles to the corresponding temperature in a two-stage heating method (see Table 3) and keep for a period of time; continue heating and sintering to make multi-cavity colored ceramic particles. Corresponding to Examples 4-6, the colored cavity ceramic particles B1, B2 and B3 were respectiv...
Embodiment 7-9
[0058] Example 7-9 Preparation of colored pavement materials
[0059] Take the colored cavity ceramic particles B1, B2 and B3 prepared in Examples 4-6, put them into airtight containers respectively, then vacuumize the container and keep it for 5-20 minutes, so that all the cavities in the particles are in a vacuum state , and then spray the PCM phase change material into the container, the injection amount is 10-50% of the aggregate amount, and keep stirring until all the cavities in the particles are filled with the phase change material.
[0060] The colored pavement binders A1, A2, and A3 prepared in Examples 1-3 are mixed with colored ceramic particle aggregates B1, B2, and B3 containing phase change materials respectively to make colored pavement materials C1, C2, and C3. The ratios are: 9 / 100, 10 / 100, 11 / 100. Its road performance is shown in the table below:
[0061] Table 4 Road performance evaluation of colored pavement materials
[0062]
[0063] Table 5 Temper...
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Abstract
The invention provides a colored pavement material, comprising cementing material and aggregates, wherein the cementing material / aggregate=5-20 / 100, wherein the aggregates are colored cavity ceramic particles, and the cavity of the colored cavity ceramic particles is Adsorbed with phase change material. When the multi-cavity ceramic particles are prepared by adding a pore-forming agent, the general cavity ratio can reach 80%, and the volume ratio of the effective adsorption phase change material can reach 40%. In the present invention, the phase change material is adsorbed in the cavities of the multi-cavity ceramic particles, so that the phase change process takes place in the cavities of the multi-cavity ceramic particles. Stress concentration occurs due to tiny defects in the material, and there will be no internal stress, and the color effect of the colored aggregate can also be fully displayed.
Description
technical field [0001] The invention relates to a pavement material and a preparation method thereof, in particular to a colored pavement material and a preparation method thereof. Background technique [0002] Colored pavement has the functions of beautifying the environment and warning traffic. Colored pavement is widely used in Europe to remind road users which part of the road can be used at which time. Colored pavement is widely used in Europe to provide a separate lane for special road users, such as bus lanes dedicated to public transport, bicycle lanes, small motor lanes, electronic toll booths dedicated to emergency services and VIP card holders Lane. Colored roads are distinguished by color on some speed bumps. This distinction is very useful. It can effectively reduce traffic violations and increase traffic safety. In addition, the popularization of colored pavement can greatly change the image of the city and reflect the characteristics of the city. Not onl...
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