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Cement concrete pavement renewing material and preparation method thereof

A technology of cement concrete and sulfoaluminate cement is applied in the preparation of the above-mentioned cement concrete pavement renovation materials, and in the field of cement concrete pavement renovation materials to achieve the effects of less construction waste, strong cohesion, and prevention of diffusion and spread

Inactive Publication Date: 2015-09-16
关其焕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first purpose of the present invention is to solve the problems existing in the renovation of the existing cement concrete pavement, and to propose a cement concrete pavement renovation material, which has the characteristics of less time-consuming, energy-saving and environmental protection, and can reduce the cost of pavement renovation. construction waste generation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A cement concrete pavement refurbishment material, its formula composition includes: 275kg of P·Ⅱ 52.5R type Portland cement, 250kg of 42.5# type sulfoaluminate cement, 300kg of medium sand, 27kg of anhydrous gypsum, 15.5 kg of PVA fiber, 1kg of square fiber, 1.5kg of carbon fiber, 1.5kg of steel fiber, 35kg of acrylic redispersible latex powder, 10kg of EVA redispersible latex powder, 2.8kg of polycarboxylate superplasticizer, 2kg Defoamer, 1.2kg of tartaric acid, 2.2kg of silicone water repellent, 1.3kg of lithium carbonate, 0.5kg of hydroxypropyl methylcellulose, 30kg of fly ash and 45kg of slag powder, water for products The amount is 20% of the total weight of the cured product.

[0064] The pavement restoration and opening to traffic of this embodiment takes about 12 hours.

Embodiment 2

[0066] A cement concrete pavement refurbishment material, its formula consists of: 470kg of P·Ⅱ 52.5R type Portland cement, 50kg of 42.5# type sulphoaluminate cement, 200kg of medium sand, 32.5kg of anhydrous gypsum, 12kg of PVA fiber, 5kg of square fiber, 3kg of carbon fiber, 3kg of steel fiber, 80kg of EVA redispersible latex powder, 2.8kg of polycarboxylate superplasticizer, 3.6kg of defoamer, 1.8kg of tartaric acid , 4kg of silicone water repellent, 1.8kg of lithium carbonate, 3.5kg of hydroxypropyl methylcellulose, 80kg of fly ash and 50kg of slag powder, the water consumption of the product is 19% of the total weight of the cured product.

[0067] The pavement restoration and opening to traffic of this embodiment takes about 48 hours.

Embodiment 3

[0069] A cement concrete pavement refurbishment material, its formula composition includes: 150kg of P·Ⅱ 52.5R type Portland cement, 375kg of 42.5# type sulphoaluminate cement, 280kg of medium sand, 12kg of anhydrous gypsum, 2.5 kg of PVA fiber, 5kg of square fiber, 5kg of carbon fiber, 5kg of steel fiber, 30kg of EVA redispersible latex powder, 2.5kg of polycarboxylate superplasticizer, 1.5kg of defoamer, 3.5kg of tartaric acid , 2.3kg of silicone water repellent, 2kg of lithium carbonate, 1.7kg of hydroxypropyl methylcellulose, 40kg of fly ash and 100kg of slag powder, the water consumption of the product is 18% of the total weight of the cured product.

[0070] The pavement restoration and opening to traffic of this embodiment takes about 4 hours.

[0071] The cement concrete pavement renovation material of embodiment 1~3 is obtained by following method:

[0072] (1) Ordinary Portland cement, sulphoaluminate cement, anhydrous gypsum, medium sand, redispersible latex powder...

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PUM

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Abstract

The invention provides a cement concrete pavement renewing material which is composed of 50-500 parts of ordinary Portland cement, 50-450 parts of sulfoaluminate cement, 180-600 parts of medium sand, 30-80 parts of redispersible latex powder, 1.5-7 parts of defoaming agent, 1-5 parts of tartaric acid, 1.5-7 parts of organosilicon water repellent, 0.5-3.5 parts of cellulose ether, 15-180 parts of fly ash and 20-150 parts of slag powder. The invention also provides a preparation method of the renewing material. The preparation method generates less construction waste, can not cause environmental pollution, can implement quick open traffic within 4-48 hours, saves both time and labor, and is beneficial to the state and people.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a cement concrete pavement refurbishment material. The invention also provides a preparation method of the cement concrete pavement refurbishment material. Background technique [0002] Cement concrete pavement has the advantages of large bearing capacity, good stability, long service life, and low daily maintenance costs. It is now widely used in airport runways, expressways, trunk roads, urban roads, factory and mine roads, parking yards, and roads in tunnels. and waterways. However, its disadvantages such as long maintenance time, high cost, poor driving comfort, high noise and easy to raise dust are more and more unable to adapt to the development needs of modern roads. At present, when the pavement surface of cement concrete roads is renovated, the overall removal of the original surface requires a large amount of work, and a large amount of construction waste and environmen...

Claims

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Application Information

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IPC IPC(8): C04B28/12C04B28/06C04B111/72
Inventor 关其焕
Owner 关其焕
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