CN104860593B - Construction waste recycled aggregate water milled colorful paving brick and preparation method thereof - Google Patents

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

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Publication number
CN104860593B
CN104860593B CN201510243520.XA CN201510243520A CN104860593B CN 104860593 B CN104860593 B CN 104860593B CN 201510243520 A CN201510243520 A CN 201510243520A CN 104860593 B CN104860593 B CN 104860593B
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aggregate
water
cement
parts
polyamide
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CN201510243520.XA
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Chinese (zh)
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CN104860593A (en
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刘勇
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刘勇
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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

A kind of construction refuse regenerated aggregate water mill color paving tile and preparation method thereof
Technical field
The invention belongs to building material field and in particular to a kind of construction refuse regenerated aggregate water mill color paving tile and its Preparation method.
Background technology
Building waste is the key component of municipal refuse, accounts for the 30%-40% of municipal refuse total amount.Only 2004 China just produces about 6,000,000,000 tons of building waste, and the data of 2008~2011 is also far longer than this number certainly.Currently to yet to be built Building refuse with traditional air storage, deep-cut based on landfill, although this mode treating capacity is big, convenient and simple, processing cost is low, But really occupy a large amount of land resources, create the environmental pollution that cannot retrieve.If so substantial amounts of building waste can not Recycle in time, not only pollute environment, also create the serious wasting of resources.
On the other hand, the quickening with the city process and people continuous improvement to aesthetic way, color paving tile is wide The general construction being applied to modern city and towns, various coloured silks have all been laid in the place such as footpath, parking lot, square, greenbelt Color pavior brick, but the common feature of these color paving tiles to be water permeability poor, comprcssive strength is not high, does not have uvioresistant spoke The effect penetrated, is all to the addition of pigment miscellaneous in these color paving tile preparation process simultaneously, increased aesthetics While also increase cost of manufacture.
Content of the invention
For problems of the prior art, the invention provides a kind of construction refuse regenerated aggregate water mill colored road surface Brick.This product utilization discards building waste aggregate as primary raw material, and discarded building waste, because mixing is complicated, presents natural Colourful, thus the operation filling stone material and pigment and expense can be cut.Not only beautify the environment, reduces cost, also save Natural resourcess, recycling economy.
Present invention also offers a kind of preparation method of construction refuse regenerated aggregate water mill color paving tile, the method preparation Operation is simple, and the product water permeability of preparation is high, mechanical performance is high, stronger to ultraviolet and thermal radiation absorption ability, reduces the summer Season urban heat land effect degree.
The present invention employs the following technical solutions:
A kind of construction refuse regenerated aggregate water mill color paving tile is it is characterised in that it is by the raw material of following weight portion Make: fine aggregate 200-260 part, coarse aggregate 60-80 part, aggregate modifying agent 5-10 part, nano silicon 30-80 part, polyamides Amine 50-70 part, water reducer 0.3-0.5 part, cement 100-140 part, water 40-70 part;Described fine aggregate be building waste size-reduced, The particle diameter obtaining after screening, impurities removing is the building waste of 0-5mm;Described coarse aggregate is that building waste is size-reduced, sieves, picks The particle diameter obtaining after impurity removing is that the building waste of 5-10mm, 10-20mm, 20-30mm is mixed to prepare according to the ratio of 2:3:0.6 's.
Described aggregate modifying agent is attapulgite, meerschaum, the kieselguhr and tourmaline ratio system according to 2:1:0.3:0.5 Become.
Described nano silicon particle diameter is 30-50nm.
Described polyamide is polyamide -6, polyamide -66 and polyamide -610.
Described water reducer is high-efficiency water-reducing agent of poly-carboxylic acid.
Described cement is portland cement, sulphate aluminium cement, ferrous aluminate cement or white cement.
A kind of preparation method of construction refuse regenerated aggregate water mill color paving tile is it is characterised in that it includes following step Rapid:
(1) building waste fine aggregate, coarse aggregate and the nano-silica that will obtain after size-reduced, screening, impurities removing respectively Add aggregate modifying agent after SiClx mixing and stirring and stir, stand 24-48 hour;
(2) add to add water after polyamide, cement, water reducer mix homogeneously in the mixing aggregate after standing and stir Mixed slurry, is pressed to mixed slurry process using block machine, and briquetting pressure is 28-35mpa, molding time 10-20s;
(3) in room temperature, humidity processes 7- for carrying out maintenance under conditions of 90-95% to the fragment of brick that step (2) is prepared molding Its surface was carried out after 28 days with grinding and buffing process again get product.
Product of the present invention can be widely used for square, residential district, landscape road, footpath, gardens, warehouse terrace etc. Field, has the advantages such as resistance to compression, folding intensity height, good water permeability, ultra-violet radiation resisting, ageing resistance and chemical resistance, using the longevity Life length, can effectively reduce Summer urban heat island effect degree.
Nano silicon is with the addition of, because it has conventional sio in product of the present invention2The special optical not having Can, it has extremely strong uv absorption and thermal radiation absorption characteristic, and it is up to the uv absorption rate within wavelength 400nm More than 70%, thus add it in pavior brick aggregate, to reach the purpose of anti-ultraviolet radiation and heat ageing, can reduce summer Urban heat land effect degree.Meanwhile, nano silicon has tridimensional network, has huge specific surface area, shows Greatly activity, increased the structural stability of product with building aggregate when being used in mixed way.Additionally, the aggregate improvement in the present invention Agent is mainly the effect that building waste aggregate is played with disinfection, and nano silicon has physiological inertia, high adsorption, It is used as carrier adsorption antibacterial ion when being used in conjunction with modifying agent, improve sterilization antibacterial and the effect of sterilization.
The invention has the beneficial effects as follows: the present invention is by using useless brick and tile, the useless solid waste such as porcelain, waste concrete building Rubbish, sieved, remove impurity removing, metal after carry out pulverization process and be used, so that building waste is become as construction material, give up Abandon building waste because mixing is complicated and present natural colourful, thus any pigment composition need not be added, not only beautify Environment, reduces cost, also saving natural resourcess;The Nano particles of silicon dioxide adding in product makes product have fabulous absorption Ultraviolet and thermal-radiating effect, effectively reduce urban heat land effect;Product is prepared using thick, fine aggregate stepped mixing, both Ensure that the porosity with abundance has reached good water penetration and maintained higher mechanical strength again.
Specific embodiment
With reference to specific embodiment, present disclosure is described in further detail.
Embodiment 1
The preparation of construction refuse regenerated aggregate water mill color paving tile
Dispensing: fine aggregate 200kg, coarse aggregate 60kg, aggregate modifying agent 5kg, nano silicon 30kg, polyamide 50kg, water reducer 0.3kg, cement 100kg, water 40kg.
The building rubbish that above-mentioned fine aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 0-5mm Rubbish;Described coarse aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 5-10mm, 10-20mm, 20- The building waste of 30mm is mixed to prepare according to the ratio of 2:3:0.6.
Above-mentioned aggregate modifying agent is attapulgite, meerschaum, the kieselguhr and tourmaline ratio system according to 2:1:0.3:0.5 Become;Described nano silicon particle diameter is 30nm.
Above-mentioned polyamide is polyamide -6;Above-mentioned water reducer is high-efficiency water-reducing agent of poly-carboxylic acid;Above-mentioned cement is silicate cement Mud.
Preparation method is as follows:
(1) building waste fine aggregate, coarse aggregate and the nano-silica that will obtain after size-reduced, screening, impurities removing respectively Add aggregate modifying agent after SiClx mixing and stirring and stir, stand 48 hours;
(2) add to add water after polyamide, cement, water reducer mix homogeneously in the mixing aggregate after standing and stir Mixed slurry, is pressed to mixed slurry process using block machine, and briquetting pressure is 28mpa, molding time 10- 20s;
(3) in room temperature, humidity processes 7- for carrying out maintenance under conditions of 90-95% to the fragment of brick that step (2) is prepared molding Its surface was carried out after 28 days with grinding and buffing process again get product.
Embodiment 2
The preparation of construction refuse regenerated aggregate water mill color paving tile
Dispensing: fine aggregate 260kg, coarse aggregate 80kg, aggregate modifying agent 10kg, nano silicon 80kg, polyamide 70kg, water reducer 0.5kg, cement 140kg, water 70kg.
The building rubbish that above-mentioned fine aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 0-5mm Rubbish;Described coarse aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 5-10mm, 10-20mm, 20- The building waste of 30mm is mixed to prepare according to the ratio of 2:3:0.6.
Above-mentioned aggregate modifying agent is attapulgite, meerschaum, the kieselguhr and tourmaline ratio system according to 2:1:0.3:0.5 Become;Described nano silicon particle diameter is 50nm.
Above-mentioned polyamide is polyamide -66;Above-mentioned water reducer is high-efficiency water-reducing agent of poly-carboxylic acid;Above-mentioned cement is aluminium sulfate Cement.
Preparation method is as follows:
(1) building waste fine aggregate, coarse aggregate and the nano-silica that will obtain after size-reduced, screening, impurities removing respectively Add aggregate modifying agent after SiClx mixing and stirring and stir, stand 24 hours;
(2) add to add water after polyamide, cement, water reducer mix homogeneously in the mixing aggregate after standing and stir Mixed slurry, is pressed to mixed slurry process using block machine, and briquetting pressure is 35mpa, molding time 10- 20s;
(3) in room temperature, humidity processes 7- for carrying out maintenance under conditions of 90-95% to the fragment of brick that step (2) is prepared molding Its surface was carried out after 28 days with grinding and buffing process again get product.
Embodiment 3
The preparation of construction refuse regenerated aggregate water mill color paving tile
Dispensing: fine aggregate 240kg, coarse aggregate 70kg, aggregate modifying agent 8kg, nano silicon 80kg, polyamide 60kg, water reducer 0.4kg, cement 120kg, water 60kg.
The building rubbish that above-mentioned fine aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 0-5mm Rubbish;Described coarse aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 5-10mm, 10-20mm, 20- The building waste of 30mm is mixed to prepare according to the ratio of 2:3:0.6.
Above-mentioned aggregate modifying agent is attapulgite, meerschaum, the kieselguhr and tourmaline ratio system according to 2:1:0.3:0.5 Become;Described nano silicon particle diameter is 45nm.
Above-mentioned polyamide is polyamide -610;Above-mentioned water reducer is high-efficiency water-reducing agent of poly-carboxylic acid;Above-mentioned cement is white cement.
Preparation method is as follows:
(1) building waste fine aggregate, coarse aggregate and the nano-silica that will obtain after size-reduced, screening, impurities removing respectively Add aggregate modifying agent after SiClx mixing and stirring and stir, stand 36 hours;
(2) add to add water after polyamide, cement, water reducer mix homogeneously in the mixing aggregate after standing and stir Mixed slurry, is pressed to mixed slurry process using block machine, and briquetting pressure is 30mpa, molding time 10- 20s;
(3) in room temperature, humidity processes 7- for carrying out maintenance under conditions of 90-95% to the fragment of brick that step (2) is prepared molding Its surface was carried out after 28 days with grinding and buffing process again get product.
Embodiment 4
The preparation of construction refuse regenerated aggregate water mill color paving tile
Dispensing: fine aggregate 220kg, coarse aggregate 75kg, aggregate modifying agent 7.5kg, nano silicon 40kg, polyamide 55kg, water reducer 0.4kg, cement 130kg, water 68kg.
The building rubbish that above-mentioned fine aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 0-5mm Rubbish;Described coarse aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 5-10mm, 10-20mm, 20- The building waste of 30mm is mixed to prepare according to the ratio of 2:3:0.6.
Above-mentioned aggregate modifying agent is attapulgite, meerschaum, the kieselguhr and tourmaline ratio system according to 2:1:0.3:0.5 Become;Described nano silicon particle diameter is 35nm.
Above-mentioned polyamide is polyamide -610;Above-mentioned water reducer is high-efficiency water-reducing agent of poly-carboxylic acid;Above-mentioned cement is ferrum aluminic acid Salt cement.
Preparation method is as follows:
(1) building waste fine aggregate, coarse aggregate and the nano-silica that will obtain after size-reduced, screening, impurities removing respectively Add aggregate modifying agent after SiClx mixing and stirring and stir, stand 48 hours;
(2) add to add water after polyamide, cement, water reducer mix homogeneously in the mixing aggregate after standing and stir Mixed slurry, is pressed to mixed slurry process using block machine, and briquetting pressure is 35mpa, molding time 10- 20s;
(3) in room temperature, humidity processes 7- for carrying out maintenance under conditions of 90-95% to the fragment of brick that step (2) is prepared molding Its surface was carried out after 28 days with grinding and buffing process again get product.
Reference examples
Dispensing: fine aggregate 220kg, coarse aggregate 75kg, aggregate modifying agent 7.5kg, polyamide 55kg, water reducer 0.4kg, water Mud 130kg, water 68kg.
The building rubbish that above-mentioned fine aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 0-5mm Rubbish;Described coarse aggregate is that building waste is size-reduced, screening, the particle diameter obtaining after impurities removing are 5-10mm, 10-20mm, 20- The building waste of 30mm is mixed to prepare according to the ratio of 2:3:0.6.
Above-mentioned aggregate modifying agent is attapulgite, meerschaum, the kieselguhr and tourmaline ratio system according to 2:1:0.3:0.5 Become;Above-mentioned polyamide is polyamide -610;Above-mentioned water reducer is high-efficiency water-reducing agent of poly-carboxylic acid;Above-mentioned cement is ferrous aluminate water Mud.
Preparation method is as follows:
(1) respectively will be equal to the building waste fine aggregate obtaining after size-reduced, screening, impurities removing, coarse aggregate mix and blend Add aggregate modifying agent after even and stir, stand 48 hours;
(2) add to add water after polyamide, cement, water reducer mix homogeneously in the mixing aggregate after standing and stir Mixed slurry, is pressed to mixed slurry process using block machine, and briquetting pressure is 35mpa, molding time 10- 20s;
(3) in room temperature, humidity processes 7- for carrying out maintenance under conditions of 90-95% to the fragment of brick that step (2) is prepared molding Its surface was carried out after 28 days with grinding and buffing process again get product.
The performance of the product that embodiment 1-4 and reference examples are obtained is detected, testing result such as table 1 below.
Table 1 the performance test results
Data from upper table can be seen that the present invention preparation water mill color paving tile resistance to compression, rupture strength, water penetration And uv absorption property has more preferable effect than reference examples, this is to make product due to the Nano particles of silicon dioxide that the present invention adopts Product have fabulous absorption ultraviolet and thermal-radiating effect, effectively reduce urban heat land effect;Simultaneously product also adopt thick, Prepared by fine aggregate stepped mixing, not only ensure that the porosity with abundance to reach good water penetration but also to maintain higher machine Tool intensity.

Claims (5)

1. a kind of construction refuse regenerated aggregate water mill color paving tile is it is characterised in that it is by the raw material system of following weight portion Become: fine aggregate 200-260 part, coarse aggregate 60-80 part, aggregate modifying agent 5-10 part, nano silicon 30-80 part, polyamide 50-70 part, water reducer 0.3-0.5 part, cement 100-140 part, water 40-70 part;Described fine aggregate is that building waste is size-reduced, sieves Point, the particle diameter that obtains after impurities removing be 0-5mm building waste;Described coarse aggregate is that building waste is size-reduced, sieves, rejects The particle diameter obtaining after debris is that the building waste of 5-10mm, 10-20mm, 20-30mm is mixed to prepare according to the ratio of 2:3:0.6 's;Described aggregate modifying agent is made up according to the ratio of 2:1:0.3:0.5 of attapulgite, meerschaum, kieselguhr and tourmaline;Institute Stating nano silicon particle diameter is 30-50nm.
2. construction refuse regenerated aggregate water mill color paving tile according to claim 1 is it is characterised in that described polyamide For polyamide -6, polyamide -66 and polyamide -610.
3. construction refuse regenerated aggregate water mill color paving tile according to claim 1 is it is characterised in that described water reducer For high-efficiency water-reducing agent of poly-carboxylic acid.
4. construction refuse regenerated aggregate water mill color paving tile according to claim 1 is it is characterised in that described cement is Portland cement, sulphate aluminium cement, ferrous aluminate cement or white cement.
5. the construction refuse regenerated aggregate water mill color paving tile described in a kind of claim 1 preparation method it is characterised in that It comprises the following steps:
(1) building waste fine aggregate, coarse aggregate and the nano silicon that will obtain after size-reduced, screening, impurities removing respectively Add aggregate modifying agent after mixing and stirring and stir, stand 24-48 hour;
(2) add to add water after polyamide, cement, water reducer mix homogeneously in the mixing aggregate after standing and stir and must mix Slurry, is pressed to mixed slurry process using block machine, and briquetting pressure is 28-35mpa, molding time 10- 20s;
(3) in room temperature, humidity is processed 7-28 days the fragment of brick that step (2) is prepared molding for carrying out maintenance under conditions of 90-95% Its surface is carried out with grinding and buffing process afterwards again get product.
CN201510243520.XA 2015-05-13 2015-05-13 Construction waste recycled aggregate water milled colorful paving brick and preparation method thereof CN104860593B (en)

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