Construction waste recycled aggregate water milled colorful paving brick and preparation method thereof

A technology of construction waste and recycled aggregate, which is applied in the field of building materials, can solve the problems of not having anti-ultraviolet radiation, occupying land resources, and low compressive strength, and achieves the effects of good water permeability, beautifying the environment, and long service life

Active Publication Date: 2015-08-26
刘勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, construction waste is mainly treated by traditional open-air stacking and deep excavation for landfill. Although this method has a large processing capacity, is convenient and simple, and has low processing costs, it actually occupies a large amount of land resources and produces irreparable environmental pollution.
If such a large amount of construction waste cannot be recycled in time, it will not only pollute the environment, but also cause a serious waste of resources.
[0003] On the other hand, with the acceleration of the urban process and the continuous imp

Method used

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  • Construction waste recycled aggregate water milled colorful paving brick and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0022] Preparation of water-milled colored pavement bricks from recycled aggregates from construction waste

[0023] Ingredients: fine aggregate 200kg, coarse aggregate 60kg, aggregate improver 5kg, nano-silica 30kg, polyamide 50kg, water reducing agent 0.3kg, cement 100kg, water 40kg.

[0024] The above-mentioned fine aggregate is the construction waste with a particle size of 0-5 mm obtained after the construction waste is crushed, sieved, and removed from the sundries; The construction waste with a diameter of 5-10mm, 10-20mm and 20-30mm is mixed according to the ratio of 2:3:0.6.

[0025] The above-mentioned aggregate modifier is made of attapulgite, sepiolite, diatomite and tourmaline in a ratio of 2:1:0.3:0.5; the particle size of the nano-silica is 30nm.

[0026] The above-mentioned polyamide is polyamide-6; the above-mentioned water-reducer is polycarboxylate high-efficiency water-reducer; the above-mentioned cement is Portland cement.

[0027] The preparation method...

Embodiment 2

[0032] Preparation of water-milled colored pavement bricks from recycled aggregates from construction waste

[0033] Ingredients: fine aggregate 260kg, coarse aggregate 80kg, aggregate improver 10kg, nano-silica 80kg, polyamide 70kg, water reducing agent 0.5kg, cement 140kg, water 70kg.

[0034] The above-mentioned fine aggregate is the construction waste with a particle size of 0-5 mm obtained after the construction waste is crushed, sieved, and removed from the sundries; The construction waste with a diameter of 5-10mm, 10-20mm and 20-30mm is mixed according to the ratio of 2:3:0.6.

[0035] The above-mentioned aggregate modifier is made of attapulgite, sepiolite, diatomite and tourmaline in a ratio of 2:1:0.3:0.5; the particle size of the nano-silica is 50nm.

[0036] The above-mentioned polyamide is polyamide-66; the above-mentioned water-reducer is polycarboxylate high-efficiency water-reducer; the above-mentioned cement is sulphoaluminate cement.

[0037] The preparati...

Embodiment 3

[0042] Preparation of water-milled colored pavement bricks from recycled aggregates from construction waste

[0043] Ingredients: 240kg of fine aggregate, 70kg of coarse aggregate, 8kg of aggregate improver, 80kg of nano-silica, 60kg of polyamide, 0.4kg of water reducing agent, 120kg of cement, and 60kg of water.

[0044] The above-mentioned fine aggregate is the construction waste with a particle size of 0-5 mm obtained after the construction waste is crushed, sieved, and removed from the sundries; The construction waste with a diameter of 5-10mm, 10-20mm and 20-30mm is mixed according to the ratio of 2:3:0.6.

[0045] The above-mentioned aggregate modifier is made of attapulgite, sepiolite, diatomite and tourmaline in a ratio of 2:1:0.3:0.5; the particle size of the nano-silica is 45nm.

[0046] The above-mentioned polyamide is polyamide-610; the above-mentioned water-reducer is polycarboxylate high-efficiency water-reducer; the above-mentioned cement is white cement.

[004...

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Abstract

The invention discloses a construction waste recycled aggregate water milled colorful paving brick and a preparation method thereof, and belongs to the field of building materials. The colorful paving brick is prepared by the following raw materials in parts by weight: 200-260 parts of fine aggregates, 60-80 parts of rough aggregates, 5-10 parts of aggregate modifier, 30-80 parts of nanometer silicon dioxide, 50-70 parts of polyamide, 0.3-0.5 parts of water reducing agent, 100-140 parts of cement and 40-70 parts of water. The product adopts construction waste recycled aggregates as the main raw material, thus being naturally multicolored, reducing processes and expenses for doping stones and pigments, beautifying the environment, reducing cost and saving natural resources. Meanwhile, the invention also provides a preparation method of the water milled colorful paving brick, the preparation method is simple in process, the prepared product is high in permeability performance and mechanical performance, and strong in ultraviolet ray and thermal radiation absorbing ability, and reduces urban heat island effect in the summer.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a water-milled colored pavement brick made of recycled aggregate from construction waste and a preparation method thereof. Background technique [0002] Construction waste is the main component of urban waste, accounting for about 30%-40% of the total amount of urban waste. In 2004 alone, my country produced about 6 billion tons of construction waste, and the data from 2008 to 2011 must be far greater than this number. At present, construction waste is mainly treated by traditional open-air stacking and deep excavation and landfill. Although this method has a large processing capacity, is convenient and simple, and has low processing costs, it actually occupies a large amount of land resources and produces irreversible environmental pollution. If such a large amount of construction waste cannot be recycled in time, it will not only pollute the environment, but also ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/04C04B28/06C04B18/16
CPCY02A30/60Y02W30/91
Inventor 刘勇
Owner 刘勇
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