CN101666139B - Environment-friendly cement tile mixed with limestone powder and preparation method thereof - Google Patents

Environment-friendly cement tile mixed with limestone powder and preparation method thereof Download PDF

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Publication number
CN101666139B
CN101666139B CN200910090063XA CN200910090063A CN101666139B CN 101666139 B CN101666139 B CN 101666139B CN 200910090063X A CN200910090063X A CN 200910090063XA CN 200910090063 A CN200910090063 A CN 200910090063A CN 101666139 B CN101666139 B CN 101666139B
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cement
agstone
environment
tile
mixed
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CN101666139A (en
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李清海
孙蓓
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China Building Materials Academy CBMA
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China Building Materials Academy CBMA
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Abstract

The invention discloses environment-friendly cement tile mixed with limestone powder and a preparation method thereof. The environmental-friendly cement tile is prepared by adding limestone powder into the raw materials of the common cement tiles, and the raw materials comprise 5 to 50 parts of limestone powder, 50 to 125 parts of cement, 120 to 170 parts of sand and 20 to 39 parts of water. Through experiments, by adding the limestone powder to the cement tiles, the breaking strength of the cement tiles is improved, and a great amount of waste limestone powder and machine-made sand powder are consumed, thereby the waste is utilized, the resources are saved, and the environment is protected. The environmental-protection cement has a great function in the building field and wide market prospect.

Description

Be mixed with environment-friendly cement tile of agstone 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 agstone and preparation method thereof industrial waste.
Background technology
Along with the fast development of Building Trade in China, to concrete demand also rapid growth, natural sandstone is difficult to satisfy human needs, and increasing broken limestone or the machine-processed sand of using is used for substituting river sand.But in fragmentation, supervene a large amount of aggregate chips powder (agstone), these agstones are directly discharging mostly, causes the pollution of environment and the waste of resource, and has worsened the production environment of stone ore, has influenced the economic benefit of stone ore.
The historical far away stream of cement tile (having another name called concrete tile) is long, the sector be China the most traditional, 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, to form hydrated calcium silicate gel (C-S-H gel) and drated calcium aluminate gel with calcium hydroxide generation secondary response, 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, the every performance of cement tile 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 agstone in cement tile.The agstone aboundresources, cheap, mix in the cement tile and can reduce production costs; The agstone resource is utilized again on the other hand, is beneficial to environmental protection.Thereby with agstone preparation cement tile technology be a kind of press for to have energy-conservation profit useless and reduce the novel concrete watt preparation technique of advantages such as product cost.
Summary of the invention
The invention provides a kind of can be the environment-friendly cement tile of raw material preparation with agstone, is utilizing waste resource, when reducing part cement, river sand consumption, can also work in coordination with other cement tile batching and play a role, and improves the cement tile performance.
For reducing the cement tile production cost, solve the problem of environmental pollution that agstone brought, the present invention takes following technical scheme: a kind of environment-friendly cement tile that is mixed with agstone is to be added with the environment-friendly cement tile that agstone prepares on the basis of ordinary Portland cement watt raw material.
Described agstone is when producing limestone, machine-processed sand etc. and gather materials, a large amount of aggregate chips and/or the stone flour of generation.The specific area of described agstone is at 600~800kg/m 2
Specifically, the described raw material that is mixed with the environment-friendly cement tile of agstone comprises following components by weight portion: agstone 5-50 part, cement 50-125 part, sand 120-170 part, water 20-39 part.
Described 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 described sand is preferably fineness modulus.
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) getting material by following parts by weight proportioning mixes: agstone 5-50 part, and cement 50-125 part, sand 120-170 part, water 20-39 part mixes above-mentioned raw materials;
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 agstone.This material is the part cement that adopts in the alternative traditional cement tile of discarded agstone, and itself and cement, sand, water etc. are evenly mixed the environment-friendly cement tile that obtains by a certain percentage.Experiment showed, that the agstone that adds in this material not only can improve the rupture strength of cement tile, can also consume the large quantities of lime stone flour, reduce part cement, river sand consumption, utilized discarded object, saved resource and protected environment.
The specific embodiment
The present invention is mixed with the environment-friendly cement tile of agstone, is the environment-friendly cement tile that is added with agstone on the basis of ordinary Portland cement watt production component.The raw material that the present invention is mixed with the environment-friendly cement tile of agstone comprises following components by weight portion: agstone 5-50 part, cement 50-125 part, sand 120-170 part, water 20-39 part.
Wherein: agstone is when producing limestone, machine-processed sand etc. and gather materials, a large amount of aggregate chips and/or the stone flour of generation.All below 0.15mm, specific area is at 600~800kg/m for the particle diameter of described lime, stone flour 2The inventor sums up in research practice: on mechanism, the agstone particle is thinner, its on the one hand can filling concrete and aggregate (sand) between hole, improve the grain composition of cementitious material, on the other hand, the agstone particulate has tangible nucleus effect, the Ca (OH) that in early days cement aquation is produced at hydrated cementitious 2Play the nucleus effect with the formation of C-S-H, make Ca (OH) 2Crystal growth is on the calcium carbonate granule surface, the favourable Ca (OH) that prevented 2Become megacryst at cement stone with the interface growth that gathers materials, make water mudrock structure and interfacial structure more fine and close, strengthened the gluing of gathering materials, improve its rupture strength with matrix.Moreover the limestone particulate quickens hydrated cementitious and participates in the hydration reaction of cement, has quickened particularly C of clinker mineral 3The aquation of S mineral, and itself can also with aluminum-containing mineral C in the cement 3The A reaction forms calcium aluminate of hydrated carbon, and formed cenotype crystalline size increases rapidly, and is converted into the crystallization aggressiveness of firm adhesion, and the interface that has strengthened limestone particle and hardened cement paste is beneficial to the development of intensity.Therefore, use agstone not only to be embodied in the twice laid aspect, also have the advantage that promotes cement tile quality aspect.
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 sand is preferably fineness modulus.
Below in conjunction with specific embodiment the present invention is described in 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 agstone
Prepare the agstone cement tile with following method, concrete grammar may further comprise the steps:
1) weigh and get material: (the stone flour discarded object that limestone is collected in producing, specific area is 614kg/m to agstone 2) 20kg, Portland cement (P.042.5 model, available from Hebei province Ji Dong Cement Group Co., Ltd) 80kg, 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 agstone.
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 agstone is detected.Testing result is as shown in table 2, show that the environment-friendly cement tile that is mixed with agstone with the inventive method preparation not only meets standard, and have preferable performance, on fracture resistance considerably beyond standard-required.
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 3054.63
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 2958.17
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 agstone
Prepare the environment-friendly cement tile that is mixed with agstone with following method, concrete grammar may further comprise the steps:
1) weigh and get material: (the primary powder that machine-processed sand is collected in producing, specific area is 621kg/m to agstone 2) 40kg, sulphate aluminium cement (the R-SAC42.5 model is available from Tangshan six or nine cement Co., Ltds) 60kg, river sand (fineness modulus is 3.0) 150kg, water 25kg 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 agstone.
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 agstone is detected.Testing result is as shown in table 3, shows that the environment-friendly cement tile that is mixed with agstone with the inventive method preparation meets standard, and has preferable performance.
Table 3 is pressed the testing result of JC/T 746-2007 standard
Project Unit Index
Rupture strength N 2572.32
Water absorption rate 8.8
Anti-permeability performance - The tile back side does not have the infiltration phenomenon
After 25-20 ℃ to+20 ℃ freeze thawing circulation, rupture strength N 2475.86
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 agstone
Prepare the environment-friendly cement tile that is mixed with agstone with following method, concrete grammar may further comprise the steps:
1) weigh and get material: (dust that machine-processed sand is collected in producing, specific area is 800kg/m to agstone 2) 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, 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 agstone.
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 agstone is detected.Testing result is as shown in table 4, shows that the environment-friendly cement tile that is mixed with agstone with the inventive method preparation meets standard, and has preferable performance.
Table 4 is pressed the testing result of JC/T 746-2007 standard
Project Unit Index
Rupture strength N 2443.70
Water absorption rate 9.1
Anti-permeability performance - The tile back side does not have the infiltration phenomenon
After 25-20 ℃ to+20 ℃ freeze thawing circulation, rupture strength N 2315.09
After 25 freeze thawing circulation, anti-permeability performance - The tile back side does not have the infiltration phenomenon
Embodiment 4~6, be mixed with the preparation and the Performance Detection thereof of the environment-friendly cement tile of agstone
Get material by table 5 proportioning, be mixed with the environment-friendly cement tile of agstone with the method preparation identical 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 agstone that obtains is detected, testing result is as shown in table 5, show that the environment-friendly cement tile that is mixed with agstone with the inventive method preparation meets standard, and have preferable performance.
The raw material proportioning of table 5 embodiment 4~6 and product testing result
Above embodiment shows that the present invention can utilize discarded agstone to prepare 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 (5)

1. an environment-friendly cement tile that is mixed with agstone is to be added with the cement tile that agstone prepares on the basis of ordinary Portland cement watt raw material cement, sand and water,
The raw material of described environment-friendly cement tile comprises the component of following parts by weight: agstone 5-50 part, cement 50-125 part, sand 120-170 part, water 20-39 part.
2. according to the right 1 described environment-friendly cement tile that is mixed with agstone, it is characterized in that: described agstone is for by discarded powder in limestone, the machine-processed sand production or the powder that processed by these discarded powders, specific area 600~800kg/m 2
3. according to the right 1 described environment-friendly cement tile that is mixed with agstone, it is characterized in that: described cement is portland cement or sulphate aluminium cement.
4. according to the right 1 described environment-friendly cement tile that is mixed with agstone, it is characterized in that: described sand is that fineness modulus is 2.3-3.0, and mud content is a 0-2.0% nature sand.
5. one kind prepares the arbitrary described method that is mixed with the environment-friendly cement tile of agstone of claim 1 to 4, may further comprise the steps:
1) proportioning is got material by weight, and raw material 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 agstone.
CN200910090063XA 2009-07-27 2009-07-27 Environment-friendly cement tile mixed with limestone powder and preparation method thereof Active CN101666139B (en)

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Application Number Priority Date Filing Date Title
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CN101666139B true CN101666139B (en) 2011-12-21

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103664065A (en) * 2012-09-12 2014-03-26 卓尚举 Novel environment-friendly brick
CN103043972A (en) * 2013-01-11 2013-04-17 中国矿业大学 Concrete based on limestone powder supplementary cementing material
CN106336178B (en) * 2016-08-19 2018-10-26 李伟绩 A kind of cement tile and preparation method thereof mixed with agstone
CN106760231A (en) * 2016-11-30 2017-05-31 成都嘉新特种精密铸造有限公司 A kind of cast waste sand recycling encaustic tile method
CN109250941A (en) * 2018-09-07 2019-01-22 青岛颢天绿色建筑科技有限公司 A kind of regenerated aggregate concrete specific complex additive

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