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Heat-contraction and cold-expansion pavement crack repairing agent and production process thereof

A technology for pavement cracks and production technology, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of poor water sealing effect, great manpower consumption, material strength, etc., and achieve simple manufacturing process, long service life, and sticky knot firm effect

Active Publication Date: 2017-02-15
HEBEI ROAD & BRIDGE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the water sealing effect is poor
[0004] Due to defects in pavement crack repair materials, the joints can only be maintained for a short time after filling, and a joint needs to be processed repeatedly, which consumes a lot of manpower and material resources

Method used

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  • Heat-contraction and cold-expansion pavement crack repairing agent and production process thereof
  • Heat-contraction and cold-expansion pavement crack repairing agent and production process thereof
  • Heat-contraction and cold-expansion pavement crack repairing agent and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of embodiment 1 pavement crack repairing agent (winter use type) of the present invention

[0027] composition:

[0028]

[0029] The production process includes the following steps:

[0030] (1) Grinding fluorinated butyl rubber into powder with a fineness greater than 50 mesh;

[0031] (2) Grinding nickel sulfide, aluminum titanate and lithium aluminum silicon into powder with a fineness greater than 100 mesh;

[0032] (3) Add Grade A No. 50 petroleum asphalt into the heating kettle and heat it to 175 degrees;

[0033] (4) Add fluorinated butyl rubber, stir vigorously for not less than 10 minutes, and keep the temperature at 160°C to 175°C during stirring;

[0034] (5) drop the temperature to 80°C;

[0035] (6) Add nickel sulfide, aluminum titanate and lithium aluminum silicon, stir vigorously for not less than 20 minutes, and keep the temperature at 75°C to 80°C during stirring;

[0036] (7) Take it out from the heating kettle, cool to normal ...

Embodiment 2

[0037] The preparation of embodiment 2 pavement crack repairing agent (summer type) of the present invention

[0038] composition:

[0039]

[0040] The production process includes the following steps:

[0041] (1) Grinding fluorinated butyl rubber into powder with a fineness greater than 50 mesh;

[0042] (2) Grinding nickel sulfide, aluminum titanate and lithium aluminum silicon into powder with a fineness greater than 100 mesh;

[0043] (3) Add Grade A No. 50 petroleum asphalt into the heating kettle and heat it to 175 degrees;

[0044] (4) Add fluorinated butyl rubber, stir vigorously for not less than 10 minutes, and keep the temperature at 160°C to 175°C during stirring;

[0045] (5) drop the temperature to 80°C;

[0046] (6) Add nickel sulfide, aluminum titanate and lithium aluminum silicon, stir vigorously for not less than 20 minutes, and keep the temperature at 75°C to 80°C during stirring;

[0047] (7) Take it out from the heating kettle, cool to normal temp...

Embodiment 3

[0048] Embodiment 3 Preparation of pavement crack repairing agent (spring and autumn type) according to the present invention

[0049] composition:

[0050]

[0051]

[0052] The production process includes the following steps:

[0053] (1) Grinding fluorinated butyl rubber into powder with a fineness greater than 50 mesh;

[0054] (2) Grinding nickel sulfide, aluminum titanate and lithium aluminum silicon into powder with a fineness greater than 100 mesh;

[0055] (3) Add Grade A No. 50 petroleum asphalt into the heating kettle and heat it to 175 degrees;

[0056] (4) Add fluorinated butyl rubber, stir vigorously for not less than 10 minutes, and keep the temperature at 160°C to 175°C during stirring;

[0057] (5) drop the temperature to 80°C;

[0058] (6) Add nickel sulfide, aluminum titanate and lithium aluminum silicon, stir vigorously for not less than 20 minutes, and keep the temperature at 75°C to 80°C during stirring;

[0059] (7) Take it out from the heatin...

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Abstract

The invention relates to a heat-contraction and cold-expansion pavement crack repairing agent and a production process thereof. The pavement crack repairing agent is prepared from 35 percent to 40 percent of A-grade No. 50 petroleum asphalt, 30 percent to 50 percent of butyl rubber fluoride, 5 percent to 10 percent of nickel sulfide, 5 percent to 10 percent of aluminium titanate and 5 percent to 10 percent of lithium aluminum silicate. The pavement crack repairing agent provided by the invention can be contracted by heat and expanded by cold along with the change of air temperature, and the expansion rate and the contraction rate are respectively 30 percent or above, so that the pavement crack repairing agent can meet the requirement on heat-expansion and cold-contraction of a road. The pavement crack repairing agent provided by the invention is high in stickiness, firm to bond, and long in service life, the manufacturing process of the pavement crack repairing agent provided by the invention is simple, and the pavement crack repairing agent is suitable to be volume-produced.

Description

technical field [0001] The invention relates to a material and a production process thereof, in particular to a pavement crack repair material and a production process thereof, and belongs to the technical field of road construction. Background technique [0002] In the 1960s, lime-stabilized soil-based residual oil pavement began to be applied in my country, and became one of the three important scientific and technological achievements in the highway industry at that time. After entering the 1970s, cement, lime, fly ash and other inorganic binders stabilized aggregate bases became the mainstream, forming the prototype of semi-rigid base asphalt pavement technology. From the 1980s to the present, through the research of the "Sixth Five-Year Plan", "Seventh Five-Year Plan" and "Eighth Five-Year Plan" scientific and technological research projects, the complete set of semi-rigid base asphalt pavement structure technology has gradually formed, and it has become the main paveme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/28C08K3/30C08K3/24C08K3/34
CPCC08L23/283C08L95/00C08K2003/3009C08K3/24C08K3/34
Inventor 平长德韩永红韩清辉张红春刘策丁三刚王彦炜李强
Owner HEBEI ROAD & BRIDGE GROUP
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