CN101624857B - Environmental-friendly cement tile mixed with biological power plant residual dust and preparation method thereof - Google Patents

Environmental-friendly cement tile mixed with biological power plant residual dust and preparation method thereof Download PDF

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CN101624857B
CN101624857B CN2009100900663A CN200910090066A CN101624857B CN 101624857 B CN101624857 B CN 101624857B CN 2009100900663 A CN2009100900663 A CN 2009100900663A CN 200910090066 A CN200910090066 A CN 200910090066A CN 101624857 B CN101624857 B CN 101624857B
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environment
cement tile
mixed
tile
cement
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CN101624857A (en
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李清海
孙蓓
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China Building Materials Academy CBMA
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00017—Aspects relating to the protection of the environment
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses an environmental-friendly cement tile mixed with biological power plant residual dust and a preparation method thereof. The environmental-friendly cement tile is prepared by adding biological power plant residual dust on the basis of a common cement tile raw material and comprises the following raw materials: 5-40 parts of biological power plant residual dust, 50-125 parts of cement, 120-170 parts of sand, 0-2.0 parts of water repellent and 20-39 parts of water. Tests prove that the residual dust added into the cement tile leads the breaking strength of the cement tile to meet the standard requirement and can consume dust removal residues of a plurality of waste heat power plants; and the invention utilizes the waste, saves resources and protects the environment. The invention plays an important role in the field of construction and has wide market prospect.

Description

Be mixed with environment-friendly cement tile of biological power plant residual dust and preparation method thereof
Technical field
The present invention relates to building materials field, relate generally to utilization again, be specifically related to a kind of environment-friendly cement tile that is mixed with biological power plant residual dust and preparation method thereof industrial waste.
Background technology
In China, the steam power station distributes extensively, makes electric power plant residual dust spread all over the whole nation, and distributed pole is wide.In recent years, the energy industry stable development of China, the generating capacity annual growth is 7.3%, electric power plant residual dust has become one of bigger industrial residue of the current discharge capacity of China.Developing rapidly of power industry makes electric power plant residual dust total amount increase year by year, and these electric power plant residual dusts are contaminated environment not only, and the waste resource, thereby the processing of electric power plant residual dust has become serious social concern.
The historical far away stream of cement tile (having another name called concrete tile) is long, the sector be China tradition, also be one of small investment, widespread production industry.Common cement tile is a basic material with cement, sand and water, and the main cementitious material of using when cement tile is produced is a cement, and Cement Production belongs to high energy consumption, high pollution, and is very big to resource and environment damage.Existing document introduction can be mixed flyash or heavy blast furnace slag (Zhou Zhihong in the cement tile batching; Chen Xun; Cui Tiansheng; Zhang Yun's ripple. utilize heavy blast furnace slag and flyash to produce colour concrete watt. brick and tile; 2003 (6): 42-45.), utilize wherein active silica and alundum (Al under the high situation of calcium hydroxide content with calcium hydroxide generation secondary response formation hydrated calcium silicate gel (C-S-H gel) and drated calcium aluminate gel, the result is in cement tile behind adding coal ash or the heavy blast furnace slag; On the basis that utilizes industrial residues such as flyash or heavy blast furnace slag, cement tile each item performance all reaches the requirement of JC 746-2007 " concrete tile " standard high-class product.But, there is not bibliographical information so far for the application of surplus ash in cement tile.Surplus grey aboundresources, cheap, mix in the cement tile and can reduce production costs; Surplus on the other hand grey resource is utilized again, is beneficial to environmental protection.Thereby with surplus ash preparation cement tile technology be a kind of press for to have energy-conservation profit useless and reduce the novel surplus ash concrete watt preparation technique of advantages such as product cost.
Summary of the invention
The invention provides a kind of environment-friendly cement tile that can use surplus ash, utilizing waste resource, when reducing part cement, river sand consumption, can also work in coordination with other cement tile batching and play a role as preparation of raw material.
For reducing the cement tile production cost; Solve the problem of environmental pollution that surplus ash brings; The present invention takes following technical scheme: a kind of environment-friendly cement tile that is mixed with surplus ash is on the basis of ordinary Portland cement watt raw materials for production, to add the environment-friendly cement tile that biological power plant residual dust is processed.
Said biological power plant residual dust is the smoke evacuation clout by the steam power station, and average particle size range is 0.1-0.3mm.
Specifically; The said composition of raw materials that is mixed with the environment-friendly cement tile of surplus ash comprises following components by weight portion: surplus grey 5-40 part, cement 50-125 part, sand 120-170 part; Hydrophober (calcium stearate, dolomol class) 0-2.0 part is (PowderA class) 0-0.12 part perhaps, water 20-39 part.
Said cement is preferably silicate series cement or sulphate aluminium cement.
It is that 2.3-3.0, mud content are the natural sand of 0-2.0% that said sand is preferably fineness modulus.
Said hydrophober is preferably calcium stearate, dolomol class or PowderA class etc.Consumption selects for use PowderA time-like consumption at 0.12 part 1.3-2.0 part when selecting calcium stearate or dolomol for use.
Second purpose of the present invention provides a kind of preparation method of environment-friendly cement tile.
The preparation method of environment-friendly cement tile provided by the present invention can may further comprise the steps:
1) proportioning is got the material mixing by weight, and above-mentioned raw materials is mixed;
2) compression moulding; Pressure 6-20MPa, the pressurization retention time is more than 2 seconds;
3) maintenance: after the demoulding, maintenance immersion after 24 hours under the situation of trickle not, trickle or natural curing.Obtain environment-friendly cement tile.
The invention provides a kind of environment-friendly cement tile that is mixed with surplus ash.This material is to adopt discarded surplus ash to substitute the part cement in traditional cement tile, and it is evenly mixed the environment-friendly cement tile that obtains by a certain percentage with cement, sand, water etc.Experiment showed, the biological power plant residual dust that adds in this material when the cement tile rupture strength satisfies standard-required, consume large number of biological electricity power plant residual dust, reduce part cement, river sand consumption, utilized discarded object, practiced thrift resource and protected environment.
The specific embodiment
The present invention is mixed with the environment-friendly cement tile of biological power plant residual dust, is on the basis of ordinary Portland cement watt raw materials for production, to add the environment-friendly cement tile that biological power plant residual dust prepares.Suitable the present invention is mixed with the environment-friendly cement tile raw material of surplus ash, comprises following components by weight portion: biological power plant residual dust 5-40 part, cement 50-125 part, sand 120-170 part, hydrophober 0-2.0 part, water 20-39 part.
Here, biological power plant residual dust is preferably the smoke evacuation clout of steam power station, average particle size range 0.1-0.3mm.It mainly acts on is the consumption of physical replacement cement and sand.The inventor sums up in research practice: say that from mechanism when surplus grey volume was low, surplus ash particle was thinner; Its on the one hand can filling concrete stone and aggregate between hole, improved the grain composition of cementitious material, simultaneously under the lower situation of surplus grey volume; Mixing of surplus ash can disperse cement granules, makes hydrated cementitious more abundant, improved the compactness of cement paste; Reduce concrete bleeding, help the raising of aggregate cement paste boundary strength in the concrete.But because surplus ash does not almost have activity, along with the increase of surplus grey volume, cement amount reduces gradually, can not get compensation by the substituted that part of cement intensity of surplus ash, is unfavorable for the development of intensity.Even so, through detecting, the cement tile that in the certain numerical value scope, adds surplus ash still meets standard (JC/T 746-2007) requirement of strength of ordinary Portland cement watt, therefore, in the cement tile raw material, uses surplus ash to be mainly reflected in aspect the twice laid.The present invention will play a great role at building field, and market prospects are wide.
Cement is preferably silicate series cement or sulphate aluminium cement.
The preferred fineness modulus of sand is that 2.3-3.0, mud content are the natural sand of 0-2.0%.
Hydrophober is preferably calcium stearate, dolomol class or Powder A (German Wa Ke company commodity) type etc., and consumption selects for use PowderA time-like consumption at 0.12 part 1.3-2.0 part when selecting calcium stearate or dolomol for use.Hydrophober is used to reduce water absorption rate to meet the cement tile standard-required in the present invention.
Below in conjunction with specific embodiment the present invention is explained further details.Method therefor is conventional method if no special instructions among the embodiment.
Embodiment 1, be mixed with the preparation and the Performance Detection thereof of the environment-friendly cement tile of surplus ash
Prepare surplus ash concrete watt with following method, concrete grammar may further comprise the steps:
1) weighs and get material: surplus ash (average grain diameter 0.15mm) 5kg; Portland cement (the P.O42.5 model is available from Hebei province Ji Dong Cement Group Co., Ltd) 95kg, river sand (fineness modulus is 2.5) 150kg; Water 26kg is mixed into wet feed with above-mentioned raw materials;
2) wet feed is inserted compression moulding in the Standard Module; Pressure 10MPa, 3 seconds retention times of pressurization;
3) standard curing: after the demoulding, maintenance is 24 hours under the situation of trickle not, the maintenance of back immersion bubble;
Obtain being mixed with the environment-friendly cement tile of surplus ash.
According to the method for testing performance among " concrete tile " the standard JC/T 746-2007 (table 1) environment-friendly cement tile that the present invention is mixed with surplus ash is detected.Testing result is as shown in table 2, shows that the environment-friendly cement tile that is mixed with surplus ash with the inventive method preparation not only meets standard, and the rupture strength index also is higher than standard figures.
The performance indications of cement tile among table 1 " concrete tile " the standard JC/T 746-2007
Project Unit Index
Rupture strength N ≥1200
Water absorption rate ％ ≤10
Anti-permeability performance ?- The phenomenon that seeps water must not appear in the tile back side
After 25 freeze thawing circulation, rupture strength N ≥1200
After 25-20 ℃ to+20 ℃ freeze thawing circulation, anti-permeability performance ?- The phenomenon that seeps water must not appear in the tile back side
Table 2 is pressed the testing result of JC/T 746-2007 standard
Project Unit Index
Rupture strength N 2893.86
Water absorption rate ％ 8.1
Anti-permeability performance - The tile back side does not have the infiltration phenomenon
After 25-20 ℃ to+20 ℃ freeze thawing circulation, rupture strength ?N ?2765.24
After 25 freeze thawing circulation, anti-permeability performance - The tile back side does not have the infiltration phenomenon
Embodiment 2, be mixed with the preparation and the Performance Detection thereof of the environment-friendly cement tile of surplus ash
Prepare the environment-friendly cement tile that is mixed with surplus ash with following method, concrete grammar may further comprise the steps:
1) weigh and get material: surplus ash (average grain diameter 0.1mm) 40kg, sulphate aluminium cement (the R-SAC42.5 model is available from Tangshan six or nine cement Co., Ltds) 80kg, river sand (fineness modulus is 3.0) 130kg, calcium stearate 2.0kg, water 32kg mixes above-mentioned raw materials;
2) compression moulding; Pressure 20MPa, 2 seconds retention times of pressurization;
3) standard curing: after the demoulding, maintenance is 24 hours under the situation of trickle not, back showering curing.
Obtain being mixed with the environment-friendly cement tile of surplus ash.
According to the method for testing performance among " concrete tile " the standard JC/T 746-2007 (table 1) environment-friendly cement tile that the present invention is mixed with surplus ash is detected.Testing result is as shown in table 3, shows that the environment-friendly cement tile that is mixed with surplus ash with the inventive method preparation meets standard, and the rupture strength index also is higher than standard figures.
Table 3 is pressed the testing result of JC/T 746-2007 standard
Project Unit Index
Rupture strength N 1864.93
Water absorption rate ％ 9.7
Anti-permeability performance - The tile back side does not have the infiltration phenomenon
After 25-20 ℃ to+20 ℃ freeze thawing circulation, rupture strength ?N ?1639.85
After 25 freeze thawing circulation, anti-permeability performance - The tile back side does not have the infiltration phenomenon
Embodiment 3, be mixed with the preparation and the Performance Detection thereof of the environment-friendly cement tile of surplus ash
Prepare the environment-friendly cement tile that is mixed with surplus ash with following method, concrete grammar may further comprise the steps:
1) weighs and get material: surplus ash (average grain diameter 0.25mm) 30kg, Portland cement (the P.O42.5 model is available from Hebei province Ji Dong Cement Group Co., Ltd) 50kg; River sand (fineness modulus is 2.3) 170kg; Calcium stearate 1.3kg, water 20kg mixes above-mentioned raw materials;
2) compression moulding; Pressure 6MPa, 3 seconds retention times of pressurization;
3) standard curing: after the demoulding, maintenance is 24 hours under the situation of trickle not, back natural curing;
Obtain being mixed with the environment-friendly cement tile of surplus ash.
According to the method for testing performance among " concrete tile " the standard JC/T 746-2007 (table 1) environment-friendly cement tile that the present invention is mixed with surplus ash is detected.Testing result is as shown in table 4, shows that the environment-friendly cement tile that is mixed with surplus ash with the inventive method preparation meets standard, and the rupture strength index also is higher than standard figures.
Table 4 is pressed the testing result of JC/T 746-2007 standard
Project Unit Index
Rupture strength N 1511.24
Water absorption rate ％ 9.8
Anti-permeability performance - The tile back side does not have the infiltration phenomenon
After 25-20 ℃ to+20 ℃ freeze thawing circulation, rupture strength ?N ?1382.62
After 25 freeze thawing circulation, anti-permeability performance - The tile back side does not have the infiltration phenomenon
Embodiment 4～6, be mixed with preparation and the Performance Detection thereof (increasing several embodiment) of the environment-friendly cement tile of slag to support the claim number range
Get material by table 5 proportioning; Use the method preparation identical to be mixed with the environment-friendly cement tile of slag with embodiment 1-3; According to the method for testing performance among " concrete tile " the standard JC/T 746-2007 (table 1) environment-friendly cement tile that is mixed with slag that obtains is detected; Testing result is as shown in table 5, shows that the environment-friendly cement tile that is mixed with slag with the inventive method preparation meets standard, and the rupture strength index also is higher than standard figures.
The proportioning raw materials of table 5 embodiment 4～6 and product testing result
Figure G2009100900663D00061
Above embodiment shows that the present invention can utilize discarded surplus ash preparation environment-friendly cement tile, and its product meets existing concrete tile standard fully, and, on performance indications such as rupture strength, be much higher than standard-required, have excellent performance.And the present invention has utilized waste resource, does not also have new pollution to produce in the preparation process, adapts to environmental protection concept, and the present invention will play a great role at building field, and market prospects are wide.

Claims (8)

1. an environment-friendly cement tile that is mixed with surplus ash is on the basis of ordinary Portland cement watt raw material, to add the cement tile that biological power plant residual dust prepares, and said biological power plant residual dust is the smoke evacuation clout of biological power plant thermal power generation, and average particle size range is 0.1-0.3mm.
2. the environment-friendly cement tile that is mixed with surplus ash according to claim 1; It is characterized in that: the composition of raw materials of said environment-friendly cement tile comprises following components by weight portion: biological power plant residual dust 5-40 part, cement 50-125 part, sand 120-170 part; Hydrophober 0-2.0 part, water 20-39 part.
3. the environment-friendly cement tile that is mixed with surplus ash according to claim 2 is characterized in that: said cement is silicate series cement or sulphate aluminium cement.
4. the environment-friendly cement tile that is mixed with surplus ash according to claim 2 is characterized in that: said sand is that fineness modulus is 2.3-3.0, and mud content is a 0-2.0% nature sand.
5. the environment-friendly cement tile that is mixed with surplus ash according to claim 2 is characterized in that: said hydrophober is calcium stearate, dolomol class or PowderA class.
6. the environment-friendly cement tile that is mixed with surplus ash according to claim 5 is characterized in that: said hydrophober is selected calcium stearate or dolomol for use, and its consumption in said environment-friendly cement tile raw material is the 1.3-2.0 weight portion.
7. the environment-friendly cement tile that is mixed with surplus ash according to claim 5 is characterized in that: said hydrophober is selected PowderA for use, and its consumption in said environment-friendly cement tile raw material is 0.12 weight portion.
8. one kind prepares the arbitrary said method that is mixed with the environment-friendly cement tile of surplus ash of claim 2 to 7, may further comprise the steps:
1) proportioning is got material by weight, and raw material stirring is mixed into wet feed;
2) wet feed is inserted compression moulding in the mould, pressure 6-20MPa, the pressurization retention time is no less than 2 seconds;
3) standard curing: after the demoulding, maintenance immersion after 24 hours under the situation of trickle not, trickle or natural curing obtain being mixed with the environment-friendly cement tile of surplus ash.
CN2009100900663A 2009-07-27 2009-07-27 Environmental-friendly cement tile mixed with biological power plant residual dust and preparation method thereof Active CN101624857B (en)

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CN106277969A (en) * 2016-08-07 2017-01-04 淄博精诚专利信息咨询有限公司 A kind of high impermeable cement tile and preparation method thereof
CN106278055B (en) * 2016-08-19 2019-01-15 徐州对河建材有限公司 A kind of cement tile and preparation method thereof mixed with modified basalt mountain flour
CN106278053B (en) * 2016-08-19 2018-10-30 陈朱亨 A kind of cement tile and preparation method thereof

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