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Sisal fiber graded broken stone mixed material and preparation method thereof

A technology of sisal fiber and graded crushed stone, which is applied in the field of road engineering materials, can solve the problems of high cost, insufficient strength of graded crushed stone mixture, and insufficient strength, so as to achieve improved service life, good economy and engineering application Value, effect of improving mechanical properties

Active Publication Date: 2019-10-08
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of insufficient strength and high cost of the graded crushed stone mixture prepared by adding fiber materials such as steel fiber and glass fiber, a new type of sisal fiber graded crushed stone mixture and its preparation method are proposed, which solves the problem of its strength. It has the advantages of good performance, high shear strength, good resistance to plastic deformation and low cost.

Method used

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  • Sisal fiber graded broken stone mixed material and preparation method thereof
  • Sisal fiber graded broken stone mixed material and preparation method thereof
  • Sisal fiber graded broken stone mixed material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of sisal fiber graded crushed stone mixture is made of the following components by weight percentage:

[0039] Graded gravel: 94.8%;

[0040] Drinking water: 4.7%;

[0041] Sisal fiber: 0.5%.

[0042] The above-mentioned sisal fiber has a length of 1-3 cm, soaked in NaOH solution with a mass concentration of 1% for 15 minutes, washed with clean water and dried.

[0043] The above graded crushed stone has the following grades:

[0044]

[0045] The preparation method of sisal fiber graded gravel is realized by the following steps:

[0046] (1) Raw material selection:

[0047] The basalt stone materials used are screened step by step according to the full sieve hole from 0.075-31.5mm, and the aggregates are divided into single-size stones from small to large, and graded crushed stones with the following gradation range are used:

[0048]

[0049] (2) Stir the above graded gravel evenly;

[0050] (3) cutting the sisal fiber into 1-3 cm, soaking it in 1% ...

Embodiment 2

[0058] A kind of sisal fiber graded gravel mixture, is made up of following mass percentage content:

[0059] Graded gravel: 94.7%;

[0060] Drinking water: 4.8%;

[0061] Sisal fiber: 0.5%.

[0062] The above-mentioned sisal fiber has a length of 1-3 cm, soaked in NaOH solution with a mass concentration of 1% for 15 minutes, washed with clean water and dried.

[0063] The above graded crushed stone has the following grades:

[0064]

[0065] The preparation method of the sisal fiber graded crushed stone that the present invention proposes is realized by the following steps:

[0066] (1) Raw material selection:

[0067] The basalt stone materials used are screened step by step according to the full sieve hole from 0.075-31.5mm, and the aggregates are divided into single-size stones from small to large, and graded crushed stones with the following gradation range are used:

[0068]

[0069] (2) Stir the above graded gravel evenly;

[0070] (3) cutting the sisal fibe...

Embodiment 3

[0078] A kind of sisal fiber graded gravel mixture, is made up of following mass percentage content:

[0079] Graded gravel: 93.2%;

[0080] Drinking water: 6%;

[0081] Sisal fiber: 0.8%.

[0082] The above-mentioned sisal fiber has a length of 1-3 cm, soaked in NaOH solution with a mass concentration of 1% for 15 minutes, washed with clean water and dried.

[0083] The above graded crushed stone has the following grades:

[0084]

[0085] The preparation method of the sisal fiber graded crushed stone that the present invention proposes is realized by the following steps:

[0086] (1) Raw material selection:

[0087] The basalt stone materials used are screened step by step according to the full sieve hole from 0.075-31.5mm, and the aggregates are divided into single-size stones from small to large, and graded crushed stones with the following gradation range are used:

[0088]

[0089] (2) Stir the above graded gravel evenly;

[0090] (3) cutting the sisal fiber ...

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Abstract

The invention belongs to the technical field of road engineering materials and in particular relates to a novel sisal fiber graded broken stone mixed material and a preparation method thereof. The novel sisal fiber graded broken stone mixed material is prepared from 93.2-94.5% by mass of graded broken stone, 0.5-0.8% by mass of a sisal fiber and 4.5-6% by mass of water. The preparation method comprises procedures of selecting materials, stirring the materials, adding the fiber, confirming an optimal water content and an optimal density, adding water, performing stirring, and the like. The novel sisal fiber graded broken stone mixed material has the advantages of being good in performance, high in anti-shearing strength, good in plastic deformation resistance and low in preparation cost.

Description

technical field [0001] The invention belongs to the technical field of road engineering materials, and in particular relates to a sisal fiber graded gravel mixture and a preparation method thereof. Background technique [0002] Semi-rigid base materials have many advantages such as high strength and good stability. In the past 50 years of highway construction in my country, semi-rigid base asphalt pavement structures were mostly used. However, due to the temperature shrinkage and dry shrinkage of the semi-rigid base, the cracks will eventually form reflective cracks, resulting in early pavement diseases, which seriously affect the performance and service life of the pavement, and greatly increase the maintenance and repair costs of the pavement. [0003] At present, the graded macadam flexible base with low cost and no reflective cracks has been widely concerned and applied. However, graded macadam has low strength and low shear resistance, and is prone to plastic deformatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/02
CPCC04B30/02C04B2111/0075C04B2201/20C04B2201/50C04B18/248C04B14/02C04B22/062
Inventor 裴建中邢向阳黄建友张久鹏李蕊李阳赵东亮
Owner CHANGAN UNIV
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