Asphalt concrete and preparation process thereof

A kind of asphalt concrete and preparation technology, which is applied in the field of concrete production and manufacturing, can solve the problems of easy cracking and low internal bonding strength, and achieve the effects of not being easy to break, saving land and money, and extending the service life

Inactive Publication Date: 2019-02-01
平湖市中建沥青混凝土工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problem that asphalt concrete in the prior art is prone to cracking due to its low internal bonding strength during use, the first object of the present invention is to provide a kind of asphalt concrete, which has good structural strength after use and is not prone to cracking. fracture

Method used

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  • Asphalt concrete and preparation process thereof
  • Asphalt concrete and preparation process thereof
  • Asphalt concrete and preparation process thereof

Examples

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Embodiment 1

[0053] Embodiment 1: a kind of asphalt concrete, each component and its corresponding parts by weight are as shown in Table 1, and are prepared through the following steps:

[0054] Step 1, stirring and drying the basalt masterbatch corresponding to the weight part in the drying barrel, the temperature is controlled at 120°C, the time is 150min, and the stirring speed is 1500rpm, to obtain the dried basalt masterbatch;

[0055] Step 2: Sieve the dried basalt masterbatch to obtain basalt particles with particle sizes of 3mm, 5mm, and 18mm respectively, and mix them evenly according to the weight ratio of 2:3:5, and add mineral powder and iron tailings The master batch is stirred evenly together to obtain the basalt ingredient;

[0056] Step 3, put basalt ingredients, talc powder, RA anti-rutting agent and silicon carbide into the mixing tank for dry mixing, the time is 10s, and the stirring speed is 1500rpm;

[0057] Step 4: Heat the asphalt in corresponding parts by weight to...

Embodiment 2-8

[0059] Embodiment 2-8: an asphalt concrete, the difference from Embodiment 1 is that each component and its corresponding parts by weight are shown in Table 1.

[0060] Each component and parts by weight thereof in table 1 embodiment 1-8

[0061]

Embodiment 9

[0062] Embodiment 9: a kind of asphalt concrete, the difference from embodiment 1 is that the talcum powder in step 3 is replaced by dolomite powder.

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Abstract

The invention discloses an asphalt concrete and a preparation process thereof, which relate to the technical field of concrete production and manufacture, and solves the problem that the asphalt concrete in the prior art is prone to cracking due to low internal bonding strength during use. The asphalt concrete comprises the following components in parts by weight: 70-80 parts of basalt masterbatch; 6-12 parts of asphalt; 2-4 parts of ore powder; 8-10 parts of iron tailings masterbatch; 1.5-2.5 parts of a cementing agent; 0.7-1.4 parts of an anti-rutting agent; and 1.1 to 1.8 parts of silicon carbide. The asphalt concrete obtained by the invention has good structural strength after use and is not easily cracked.

Description

technical field [0001] The invention relates to the technical field of concrete production, more specifically, it relates to an asphalt concrete and a preparation process thereof. Background technique [0002] Asphalt concrete, commonly known as asphalt concrete, is artificially selected with a certain gradation composition of mineral materials, crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions made mixture. [0003] In the Chinese invention patent whose publication number is CN103553443A, a sericite-modified asphalt concrete is disclosed, which is made of the following raw materials in parts by weight: 100 parts of mineral material, 4-7 parts of asphalt, 0.5-2 parts of sericite powder, and even 0.1-4 parts of coupling agent; the coupling agent is silane coupling agent, titanate coupling agent or aluminate coupling agent, and the gradation type of the min...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B111/34
CPCC04B26/26C04B2111/343C04B2201/50C04B14/14C04B18/141C04B18/12C04B14/042C04B14/324C04B2103/0068C04B14/28C04B18/26
Inventor 顾建良
Owner 平湖市中建沥青混凝土工程有限公司
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