A kind of rubber powder modified cement concrete pavement and its manufacturing method

A technology of cement concrete and rubber powder, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve the problems of large load, temperature dry and wet deformation, high rigidity of concrete slab, and unsuitable for large settlement, etc. The effect of reducing black pollution, reducing engineering cost, improving high temperature micro-expansion and residual deformation capacity

Active Publication Date: 2019-05-21
广西航务建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the cement concrete pavement has experienced decades of development and the technology is very mature and advanced, the concrete pavement still faces these typical problems: (1) Many joints
(2) The modulus of the rigid pavement is large, the bounce is large, and the load, temperature, and dry and wet deformation are large
Due to its high rigidity, poor vibration reduction effect and high noise, it affects the driving comfort
At the same time, due to the high rigidity of the concrete slab, it is not suitable for large settlement

Method used

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  • A kind of rubber powder modified cement concrete pavement and its manufacturing method
  • A kind of rubber powder modified cement concrete pavement and its manufacturing method
  • A kind of rubber powder modified cement concrete pavement and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A rubber powder modified cement concrete pavement, the cement concrete pavement comprises the following raw materials in parts by weight:

[0056] Rubber powder 25kg / m³ 425 cement 300kg / m³

[0057] River sand 550kg / m³ gravel 1130kg / m³

[0058] Water 135kg / m³ Water reducer 5.5kg / m³

[0059] Phthalate coupling agent 3kg / m³ Rubber latex 2kg / m³

[0060] Hydrophobic modified cellulose 3kg / m³ lignin 15kg / m³ (recycled by banana stalks, see the content of the invention)

[0061] Granulated blast furnace slag powder 110kg / m³.

[0062] The fineness of the rubber powder is 20 mesh.

[0063] The fineness of the granulated blast furnace slag powder is 200 mesh.

[0064] The fineness modulus of the river sand is 2.2-3.5.

[0065] The grain size of the gravel is 5-37.5mm.

[0066] The manufacturing method comprises the following steps:

[0067] (1) Production and selection of rubber powder; rubber powder (granules) comes from waste tires, and waste tires can be divided into tw...

Embodiment 2

[0071] A rubber powder modified cement concrete pavement, the cement concrete pavement comprises the following raw materials in parts by weight:

[0072] Rubber powder 30kg / m³ 425 cement 330kg / m³

[0073] River sand 590kg / m³ gravel 1180kg / m³

[0074] Water 145kg / m³ Water reducer 6.5kg / m³

[0075] Phthalate coupling agent 4kg / m³ Rubber latex 3kg / m³

[0076] Hydrophobic modified cellulose 4kg / m³ Lignin 20kg / m³ (extracted by papermaking black liquor, see the content of the invention for the method)

[0077] Granulated blast furnace slag powder 100kg / m³.

[0078] The fineness of the rubber powder is 60 mesh.

[0079] The fineness of the granulated blast furnace slag powder is 280 mesh.

[0080] The fineness modulus of the river sand is 2.2-3.5.

[0081] The grain size of the gravel is 5-37.5mm.

[0082] The manufacturing method comprises the following steps:

[0083] (1) Production and selection of rubber powder; rubber powder (granules) comes from waste tires, and waste t...

Embodiment 3

[0087] A rubber powder modified cement concrete pavement, the cement concrete pavement comprises the following raw materials in parts by weight:

[0088] Rubber powder 27kg / m³ 425 cement 315kg / m³

[0089] River sand 570kg / m³ gravel 1110kg / m³

[0090] Water 150kg / m³ Water reducer 6.2kg / m³

[0091] Phthalate coupling agent 3.5kg / m³ Rubber latex 2.5kg / m³

[0092] Hydrophobic modified cellulose 3.5kg / m³ Lignin 17.5kg / m³ (extracted by papermaking black liquor, see the content of the invention for the method)

[0093] Granulated blast furnace slag powder 95kg / m³.

[0094] The fineness of the rubber powder is 40 mesh.

[0095] The fineness of the granulated blast furnace slag powder is 240 mesh.

[0096] The fineness modulus of the river sand is 2.2-3.5.

[0097] The grain size of the gravel is 5-37.5mm.

[0098] The manufacturing method comprises the following steps:

[0099] (1) Production and selection of rubber powder; rubber powder (granules) comes from waste tires, and ...

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Abstract

The invention discloses a rubber powder modified cement concrete pavement and a manufacturing method thereof. The rubber powder modified cement concrete pavement is characterized by being prepared from the following raw materials in parts by weight: 25 to 30kg / m<3> of rubber powder, 300 to 330kg / m<3> of 425 cement, 550 to 590kg / m<3> of river sand, 1080 to 1180kg / m<3> of broken stone, 135 to 165kg / m<3> of water, 5 to 7kg / m<3> of water reducing agents, 3 to 4kg / m<3> of phthalic ester coupling agents, 2 to 3kg / m<3> of rubber latex, 3 to 4kg / m<3> of hydrophobic modification cellulose, 15 to 20kg / m<3> of lignin, 80 to 110kg / m<3> of granulitic blast-furnace ore slag powder and the like. The raw materials are effectively mixed to obtain the concrete. The rubber powder modified cement concrete pavement has the characteristics that the properties of anti-folding intensity, anti-impact performance, bottom plate anti-impact and anti-abrasion performance, wear-resistant performance, temperature shrinkage, dry shrinkage performance, freezing resistance performance, ultimate strain capability, noise reducing performance, volume weight, corrosion resistance and the like of the rubber powder modified cement concrete pavement are superior to those of the ordinary cement concrete pavement; the later-stage maintenance cost is lower than that of the ordinary cement concrete pavement, and the like.

Description

technical field [0001] The invention relates to the field of highway pavement engineering, in particular to a rubber powder modified cement concrete pavement and a manufacturing method thereof. Background technique [0002] my country's cement concrete pavement appeared in the late 1920s, and it has been nearly a century so far. With the development of highway transportation in our country, the construction of cement concrete pavement has developed rapidly. As an important form of advanced pavement structure, cement concrete pavement still accounts for a small proportion in expressways despite its rapid development in recent years. At present, about 90% of paved roads in the world use asphalt surface. Because the driving comfort of asphalt concrete pavement is higher than that of cement concrete pavement, but the fatigue resistance and durability of asphalt concrete pavement are far worse than that of cement concrete pavement. Furthermore, there is less domestic asphalt a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B18/22C04B24/24C04B24/40C04B18/14E01C7/14
CPCC04B18/142C04B18/22C04B24/24C04B24/40C04B28/04C04B2111/0075C04B2201/20C04B2201/50E01C7/142C04B14/068C04B14/02C04B2103/302C04B24/383Y02W30/91
Inventor 何崇雄李育林陆保佐陆宏新唐双美
Owner 广西航务建设工程有限公司
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