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Preparation and analysis method of basalt fiber transparent mixture

A technology of basalt fibers and mixtures, applied in image analysis, image data processing, instruments, etc., can solve the problems of difficult evaluation and analysis of basalt fiber dispersion

Pending Publication Date: 2022-02-08
LIAONING PROVINCIAL TRANSPORTATION PLANNING & DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the dispersion of basalt fiber in asphalt mixture is difficult to evaluate and analyze, to provide a preparation and analysis method of basalt fiber transparent mixture, in order to improve the quality control of basalt fiber asphalt mixture, Improve the stability of its performance

Method used

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  • Preparation and analysis method of basalt fiber transparent mixture
  • Preparation and analysis method of basalt fiber transparent mixture
  • Preparation and analysis method of basalt fiber transparent mixture

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0026] Specific embodiment 1: This embodiment discloses a method for preparing a basalt fiber transparent mixture, and the method includes the following steps:

[0027] Step 1. Select the particle size and proportion of the transparent crystal stone according to the gradation characteristics of the target asphalt mixture (for the prior art), so that its composition is close to the gradation of the asphalt mixture, and measure the skeleton gap of the transparent crystal stone rate (the test method of skeleton gap ratio is the prior art, JTG E42-2005 (T0309)), and determine the consumption of transparent binder based on the skeleton gap ratio; the transparent binder is made of epoxy resin and epoxy resin Composition of resin curing agent;

[0028] Step 2. Stir the basalt fiber with a mass fraction of 0.3% and the transparent crystal stone at room temperature for 60-90s, then add epoxy resin curing agent and stir for 60-90s, and finally add epoxy resin and continue stirring for 6...

specific Embodiment approach 2

[0031] Embodiment 2: This embodiment is a further description of Embodiment 1. In step 1, the volume of the transparent cement is 70% to 80% of the porosity of the skeleton.

specific Embodiment approach 3

[0032] Specific implementation mode three: This implementation mode is a further description of specific implementation mode one. In step one, the particle size and proportion of transparent crystal stones are selected according to the gradation characteristics of the target asphalt mixture as follows:

[0033] The particle sizes of transparent crystal stones are selected as 9-12mm, 7-9mm, 5-7mm and 2-5mm respectively. According to the target SMA-13 ​​asphalt mixture gradation, the mass proportion range values ​​of the above four crystal stones are respectively 30%-45%, 20%-35%, 25%-40%, 5%-12%.

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Abstract

The invention discloses a preparation and analysis method of a basalt fiber transparent mixture, and belongs to the field of road engineering. The method comprises the steps: selecting the particle size and proportion of the transparent crystal according to the grading characteristics of the target asphalt mixture, enabling the composition of the transparent crystal to be close to the grading of the asphalt mixture, measuring the skeleton void rate of the transparent crystal, and determining the use amount of the transparent adhesive binder on the basis of the skeleton void rate; mixing the basalt fibers with the mass fraction of 0.3% and transparent crystal stone for 60-90 s at the normal temperature, adding an epoxy resin curing agent for mixing for 60-90 s, finally adding epoxy resin for mixing for 60-90 s, and obtaining a basalt fiber transparent mixture; loading the basalt fiber transparent mixture into a mold to prepare a test piece, compacting by using a rubber hammer, curing at room temperature for 2-4 hours, and performing demolding; slicing the test piece, wherein the thickness is not larger than 8 mm; polishing the surface of the test piece slice through 400-mesh fine sandpaper till the surface is smooth, and finally removing the slurry on the surface of the test piece slice. The method is used for perfecting the quality control of the basalt fiber asphalt mixture and improving the performance stability of the basalt fiber asphalt mixture.

Description

technical field [0001] The invention belongs to the field of road engineering, and in particular relates to a method for preparing and analyzing a fiber transparent mixture for exploring the distribution of basalt fibers in an asphalt mixture. Background technique [0002] How to improve the performance of asphalt mixture and enhance its resistance to traffic load and unfavorable natural environment is a continuous concern in the field of road engineering. As a special additive and stabilizer, fiber can play the role of reinforcement, adsorption, stabilization and viscosity increase in asphalt mixture, thereby improving the resistance of asphalt mixture to high temperature permanent deformation, low temperature cracking, water damage, fatigue cracking, etc. disease capacity. At the same time, compared with other reinforcement methods, the use of fiber stabilizers usually does not require complicated construction procedures and equipment, and has a lower cost. Basalt fiber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/14C04B14/46G06T7/00G06T7/11G06T7/136G06T7/62
CPCC04B26/14C04B14/4656G06T7/0004G06T7/11G06T7/136G06T7/62G06T2207/30132G06T2207/30242C04B2111/0075C04B2111/00991C04B2103/0068C04B14/06
Inventor 郭少华程鹏健刘立安易军艳刘宁赵金成裴忠实常利靳慧炜林森林
Owner LIAONING PROVINCIAL TRANSPORTATION PLANNING & DESIGN INST
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