Formula and preparation method of fiber suspension and noise-reducing anti-cracking slurry seal process

一种悬浮液、纤维的技术，应用在道路、现场铺筑的凝结性铺面、建筑等方向，能够解决聚酯纤维在混合料分散困难等问题，达到解决不能修复反射裂缝、提高柔性的效果

Inactive Publication Date: 2021-10-19
AVIC LUTONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a fiber suspension formula and its preparation method as well as a noise-reducing and anti-cracking slurry sealing process. By adding selected polyester fibers, the existing slurry sealing layer and micro-surface treatment can be improved. Excellent flexibility, resistance to bending deflection and longitudinal shearing force, to achieve the purpose of noise reduction and repair of reflective cracks on the original road surface; through the pre-dispersion, infiltration and slipping treatment of polyester fibers, a special fiber suspension is made, To solve the problem of difficult dispersion of polyester fiber in the mixture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Asphalt binder: SBR latex modified emulsified asphalt, with a solid content of 62.6%, its performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004); the dosage is 10.4%.

[0036] Fiber: No fiber suspension added.

[0037] Filler: 425# ordinary Portland cement, its performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004); the addition amount is 1.2%.

[0038] Mineral material: limestone is used for fine aggregate, basalt is used for coarse aggregate, and its various performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004).

[0039] Mineral grading (washing method):

[0040] Sieve hole(mm) 9.5 4.75 2.36 1.18 0.6 0.3 0.15 0.075 Passing rate(%) 100.0 78.7 57.6 40.6 27.0 17.3 2.7 6.5

Embodiment 2

[0042] Asphalt binder: SBR latex modified emulsified asphalt, with a solid content of 62.6%, its performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004); the amount of emulsified asphalt is 11.5%.

[0043] Fiber: Add 2.5% fiber suspension.

[0044] Filler: 425# ordinary Portland cement, its performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004); the addition amount is 1.2%.

[0045] Mineral material: limestone is used for fine aggregate, basalt is used for coarse aggregate, and its various performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004).

[0046] Mineral grading (washing method):

[0047] Sieve hole(mm) 9.5 4.75 2.36 1.18 0.6 0.3 0.15 0.075 Passing rate(%) 100.0 78.7 57.6 40.6 27.0 17.3 2.7 6.5

Embodiment 3

[0049] Asphalt binder: SBR latex modified emulsified asphalt, with a solid content of 62.6%, its performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004); the amount of emulsified asphalt is 12.2%.

[0050] Fiber: Add 4.2% fiber suspension.

[0051] Filler: 425# ordinary Portland cement, its performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004); the addition amount is 1.2%.

[0052]Mineral material: limestone is used for fine aggregate, basalt is used for coarse aggregate, and its various performance indicators meet the requirements of "Technical Specification for Highway Asphalt Pavement Construction" (JTG F40-2004).

[0053] Mineral grading (washing method):

[0054] Sieve hole(mm) 9.5 4.75 2.36 1.18 0.6 0.3 0.15 0.075 Passing rate(%) 100.0 78.7 57.6 40.6 27.0 17.3 2.7 6.5

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Abstract

The invention relates to the technical field of road maintenance materials, in particular to a fiber suspension formula, a preparation method thereof and a noise-reducing anti-cracking slurry seal process. By adding selected polyester fibers, the flexibility, bending deflection resistance and longitudinal shearing resistance of an existing slurry seal and the micro-surfacing are improved, and the purposes of reducing noise and repairing reflection cracks of an original pavement are achieved; and the special fiber suspension is prepared by dispersing, infiltrating and slipping polyester fibers in advance, so that the problem that the polyester fibers are difficult to disperse in a mixture is solved.

Description

technical field [0001] The invention relates to the technical field of highway maintenance materials, in particular to a fiber suspension formulation and a preparation method thereof, and a noise reduction and crack-resistant slurry sealing process. Background technique [0002] After nearly 40 years of rapid development, the golden construction period of my country's expressways is coming to an end. The expressway network with "five verticals and seven horizontals" as the backbone will be fully completed. By the end of 2020, the total mileage of expressways in my country will be nearly 200,000 kilometers. , ranking first in the world. How to ensure the preservation and appreciation of such a huge expressway asset and give full play to its maximum economic and social benefits is a daunting systematic problem that takes into account both the engineering and the economy. It is the most basic requirement to maintain and increase the value of expressway assets to maintain and ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B16/06C04B28/04E01C7/35C04B111/52
CPCC04B40/0039C04B40/0046C04B16/0683C04B28/04E01C7/358C04B2111/0075C04B2111/52C04B2201/50C04B22/06C04B24/121C04B24/383C04B24/36C04B14/14C04B14/28
Inventor 邵荣新胡吉良匡志娟
Owner AVIC LUTONG CO LTD
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