Waterproof material for semi-rigid base surface and preparation method thereof

A semi-rigid base and waterproof material technology, applied in the field of road engineering, can solve the problems of less research on semi-rigid base structure optimization, and achieve the effect of simple preparation conditions and preparation process, strong permeability, and excellent impermeability

Inactive Publication Date: 2017-08-08
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the current measures to improve the water stability and durability of the semi-rigid base are mainly to improve the pavement structure or improve the performance of the surface material, while there are few studies on the optimization of the semi-rigid base structure or the material itself.

Method used

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  • Waterproof material for semi-rigid base surface and preparation method thereof
  • Waterproof material for semi-rigid base surface and preparation method thereof
  • Waterproof material for semi-rigid base surface and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The present embodiment provides a waterproof material for the surface of the semi-rigid base, which consists of the following raw materials in terms of mass fraction: 10% glass flakes, 40% diatomaceous earth, 9% water glass, 10% slag powder, 6% Graphene oxide, 6% sodium cocoyl methyl taurate, 3% polysiloxane defoamer, balance 16% water.

[0034] The glass flakes are medium-alkali glass flakes with a diameter of 0.2-0.4mm, a thickness of 5±2μm, and a density of 2.52g / cm 3 , Barcol hardness is 57.

[0035] Diatomaceous earth is white or off-white, SiO 2 The content is greater than or equal to 98%, and the density is 1.9-2.3g / cm 3 .

[0036] The modulus of water glass is 2.5 and the degree of Baume is 37.

[0037] The slag powder is S105 grade slag powder, and its quality coefficient is 1.86.

[0038] Graphene oxide is in the form of amber powder, with a purity greater than or equal to 99%, a sheet diameter of 0.5-10 μm, one layer, and a single-layer rate greater than...

Embodiment 2

[0048] Embodiment 2: This embodiment provides a kind of waterproof material that is used for semi-rigid base surface, by mass fraction, is made up of following raw material: 15% glass flakes, 32% diatomite, 12% water glass, 8% slag powder, 8% graphene oxide, 4% sodium cocoyl methyl taurate, 2% polysiloxane defoamer, and the balance is 19% water.

[0049] The requirements for each raw material are the same as in Example 1 in this example.

[0050] The preparation method of this example is the same as that of Example 1, and finally a waterproof material for the surface of the semi-rigid base layer is prepared, numbered 2#.

Embodiment 3

[0052] The present embodiment provides a waterproof material for the surface of the semi-rigid base, which consists of the following raw materials in terms of mass fraction: 13% glass flakes, 35% diatomaceous earth, 10% water glass, 9% slag powder, 7% Graphene oxide, 5% sodium cocoyl methyl taurate, 2.5% polysiloxane defoamer, balance 18.5% water.

[0053] The requirements for each raw material are the same as in Example 1 in this example.

[0054] The preparation method of this example is the same as the steps of Example 1, and finally a waterproof material for the surface of the semi-rigid base layer is prepared, numbered 3#.

[0055] Effectiveness analysis:

[0056] Firstly, 42.5 ordinary Portland cement is used to prepare cement-stabilized crushed stone semi-rigid base material, and its dosage is 5%. The mineral material gradation is shown in Table 1. Three batches of test pieces were molded separately for unconfined compressive strength test, water permeability test an...

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Abstract

The invention discloses a waterproof material for a semi-rigid base layer surface and a preparing method of the waterproof material. The waterproof material for the semi-rigid base layer surface is prepared from, by mass, 10-15% of glass flakes, 32-40% of kieselguhr, 9-12% of sodium silicate, 8-10% of slag powder, 6-8% of graphene oxide, 4-6% of coconut oil acid diethanolamide, 2-3% of a polysiloxane defoaming agent and the balance water. The waterproof material for the semi-rigid base layer surface can permeate into a semi-rigid base layer, the compactness of the internal structure of the semi-rigid base layer can be improved, and the microstructure can be improved; besides, a smooth hardened layer is formed on the semi-rigid base layer surface, and the anti-permeability, the anti-scouring performance and the water stability of the semi-rigid base layer surface can be effectively improved so that the durability of the semi-rigid base layer can be improved, and the service life of a pavement can be greatly prolonged.

Description

[0001] 【Technical field】 [0002] The invention belongs to the field of road engineering and relates to a waterproof material, in particular to a waterproof material used on the surface of a semi-rigid base and a preparation method thereof. [0003] 【Background technique】 [0004] Semi-rigid base asphalt pavement has gradually developed into the main pavement structure type of high-grade highways in my country. Inorganic binder stabilized materials are widely used in semi-rigid bases because of their advantages such as high strength, good stability, good integrity and obvious economy. However, due to natural factors such as high and low temperature alternation, rainwater infiltration, and the impact of heavy-duty traffic on expressways, the early failure of semi-rigid base asphalt pavement structures has become increasingly serious. Potholes and other phenomena will greatly shorten the service life of asphalt pavement. At present, the overhaul mode proposed for the damage of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B111/27
CPCC04B28/26C04B2111/00482C04B2111/27C04B2201/50C04B14/42C04B14/08C04B18/141C04B14/024C04B24/161C04B24/42C04B22/002
Inventor 何锐郑睢宁黄鑫邵玉张永朋陈华鑫朱永光
Owner CHANGAN UNIV
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