CN103360007B - A kind of weather resistance silicate cement cementing agent and preparation method thereof - Google Patents

A kind of weather resistance silicate cement cementing agent and preparation method thereof Download PDF

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CN103360007B
CN103360007B CN201310310241.1A CN201310310241A CN103360007B CN 103360007 B CN103360007 B CN 103360007B CN 201310310241 A CN201310310241 A CN 201310310241A CN 103360007 B CN103360007 B CN 103360007B
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weather resistance
cement
flyash
cementing agent
silicate cement
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CN103360007A (en
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杨志峰
朱文浩
刘少华
黄蕴君
余翔
张超
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JIANGSU NANCI INSULATORS CO Ltd
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JIANGSU NANCI INSULATORS CO Ltd
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Abstract

The present invention relates to a kind of novel endurance Portland cement adhesive, comprise following component and the weight percent of each component is: cement 45-55%; Quartz sand 23-28%; Flyash 1.5-3.0%; High-activity metakaolin 6-12%; Additive 0.4-0.8%; Water 12-15%.And preparation method is: first water and additive are mixed, and then add cement, quartz sand, flyash and high-activity metakaolin, continue stirring and mix for 3-8 minute, shaping immediately after taking-up; Shaping to be placed on 35-50 DEG C of protecting box steam-cured, and humidity is not less than 95%, the demoulding after 4 ~ 12h, and demoulding examination body is placed in the hot water maintenance 48-96h that water temperature is 60-80 DEG C, namely obtains described novel endurance Portland cement adhesive finally by after test passes.The present invention has that cost is low, lower shrinkage, frost resistance and the premium properties such as good endurance, high strength.

Description

A kind of weather resistance silicate cement cementing agent and preparation method thereof
Technical field
The present invention relates to a kind of cementing agent and preparation method thereof, especially relate to a kind of production porcelain insulator insulator with lower shrinkage, good frost resistance and the premium properties such as weather resistance, high strength novel endurance Portland cement adhesive used and preparation method thereof, belong to technical field of chemical products.
Background technology
Along with the development of power industry, ultra-high voltage, large span, long distance power transmission obtain universal rapidly, and the market requirement of the electrotechnical porcelain products such as 300 kN and above high voltage long life insulator constantly increases.Wherein, cement glue plays integrally-built tissue-welding effect, and its quality is directly connected to the performance of insulator, life-span and reliability, and in current electrotechnical porcelain product, cement glue is the weakest link, obviously can not meet need of production.Metakaolin is a kind of micro mist of high pozzolanic activity, can be used as the adulterant of cement glue effectively to improve its weather resistance.In China, correlative study application there is not yet play-by-play.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of novel endurance Portland cement adhesive for long life high-voltage porcelain insulator insulator adhesive binding and preparation method thereof.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of novel endurance Portland cement adhesive, is characterized in that, comprises following component and the weight percent of each component is:
Cement 45-55%;
Quartz sand 23-28%;
Flyash 1.5-3.0%;
High-activity metakaolin 6-12%;
Additive 0.4-0.8%;
Water 12-15%.
Further, described cement be greater than the silicate cement of 52.5 or 52.5R for label, meet the regulation of GB175-1999.
The granularity of described quartz sand is 80-120 order, meets GB178-1977.
Described flyash is I grade of flyash, meets GB1596-91.
The preparation method of described high-activity metakaolin is as follows: the baking oven first block kaolin being placed in 100 scholar 5 DEG C is dried to constant weight, be 7-10um through grinding of ball grinder to kaolin median size, then the kaolin after levigate is put into chamber type electric resistance furnace calcine under the temperature condition of 750-900 DEG C and be incubated 1-3h, and temperature rise rate is 5-20 DEG C/min, then through vibrating the specific surface area>=12000m of abrasive dust to material 2/ kg median size≤2.30um, collects and obtains high-activity metakaolin.
And the described block kaolin starting material chemical constitution preparing high-activity metakaolin requires as SiO 2content>=45%, Al 2o 3content>=42%.
And described additive comprises polycarboxylic acids dehydragent, the esterified defoamer of modified polyether and AE air entrapment agent, and the mass ratio of the esterified defoamer of described polycarboxylic acids dehydragent, modified polyether and AE air entrapment agent is 100:5-7:3-5.
A kind of preparation method of novel endurance Portland cement adhesive, it is characterized in that, step is as follows: first water and additive are mixed according to mass percent according to claim 1, and then add cement, quartz sand, flyash and high-activity metakaolin, continue to stir and mix for 3-8 minute, shaping immediately after taking-up; Shaping to be placed on 35-50 DEG C of protecting box steam-cured, and humidity is not less than 95%, the demoulding after 4 ~ 12 h, and demoulding examination body is placed in the hot water maintenance 48-96h that water temperature is 60-80 DEG C, namely obtains described novel endurance Portland cement adhesive finally by after test passes.
The invention has the beneficial effects as follows: silicate cement cementing agent of the present invention, by rationally adding each component especially high-activity metakaolin, silicate cement cementing agent is made to have lower shrinkage, good frost resistance and the premium properties such as weather resistance, high strength, be easy to the scale insulator suitability for industrialized production that has high input, be specially adapted to the insulator use of long life high-voltage porcelain insulator, to meet the needs that long life high-voltage porcelain insulator is produced.
Embodiment
Below in conjunction with specific embodiment, concrete introduction is done to the present invention.
embodiment 1: a kind of novel endurance Portland cement adhesive, comprises following component and the weight percent of each component is cement 47.51%, quartz sand 26.39%, flyash 2.50%, high-activity metakaolin 10.00%, additive 0.67%, water 12.93%.Wherein, cement is the regulation meeting GB175-1999, and label is not less than the silicate cement of 52.5 or 52.5R, 52.5 silicate cements that this experiment uses conch to produce; The granularity of described quartz sand is 80-120 order, meets GB178-1977; Described flyash is the I grade of flyash meeting GB GB1596-91 standard; First the baking oven block kaolin being placed in 100 scholar 5 DEG C is dried to constant weight, be 8um through grinding of ball grinder to kaolin median size, then the kaolin after levigate is put into chamber type electric resistance furnace calcine under the temperature condition of 800 DEG C and be incubated 2h, and temperature rise rate is 10 DEG C/min, then through vibrating the specific surface area>=12000m of abrasive dust to material 2/ kg and median size≤2.30um, collects and obtains high-activity metakaolin, and the block kaolin starting material place of production used is blue or green far away, and chemical constitution requires as SiO 2content>=45%, Al 2o 3content>=42%; And additive is polycarboxylic acids dehydragent (Suzhou Fuke New Construction Materials Co., Ltd), the esterified defoamer of modified polyether (Dongguan City De Feng Chemical Co., Ltd., model is DF-880) and the mixture that configures according to mass ratio 100:6:4 of AE air entrapment agent (Wuhan Qi Feng Science and Technology Ltd., model is QF-C1).
The preparation method of above-mentioned cementing agent is: by the mass percent of above-mentioned each component, first water and additive are mixed, and then add cement, quartz sand, flyash and high-activity metakaolin, and continue stirring and mix for 3-8 minute, shaping immediately after taking-up; Shaping to be placed on 35-50 DEG C of protecting box steam-cured, and humidity is not less than 95%, the demoulding after 4 ~ 12 h, and demoulding examination body is placed in the hot water maintenance 48-96h that water temperature is 60-80 DEG C, namely obtains described novel endurance Portland cement adhesive finally by after test passes.
embodiment 2: substantially the same manner as Example 1, difference is the proportioning raw materials of novel endurance Portland cement adhesive: cement 49.69%, quartz sand 27.61%, flyash 1.86%, high-activity metakaolin 7.45%, additive 0.55%, water 12.84%.And the preparation method of described high-activity metakaolin is as follows: the baking oven first block kaolin being placed in 100 scholar 5 DEG C is dried to constant weight, be 10um through grinding of ball grinder to kaolin median size, then the kaolin after levigate is put into chamber type electric resistance furnace calcine under the temperature condition of 750 DEG C and be incubated 3h, and temperature rise rate is 5 DEG C/min, then through vibrating the specific surface area>=12000m of abrasive dust to material 2/ kg, median size≤2.30um, collect and obtain high-activity metakaolin.Additive is polycarboxylic acids dehydragent (Suzhou Fuke New Construction Materials Co., Ltd), the esterified defoamer of modified polyether (Dongguan City De Feng Chemical Co., Ltd., model is DF-880) and the mixture that configures according to mass ratio 100:5:3 of AE air entrapment agent (Wuhan Qi Feng Science and Technology Ltd., model is QF-C1)
embodiment 3: substantially the same manner as Example 1, difference is the proportioning raw materials of novel endurance Portland cement adhesive: cement 50.22%, quartz sand 23.00%, flyash 2.52%, high-activity metakaolin 10.06%, additive 0.80%, water 13.40%.
embodiment 4: substantially the same manner as Example 1, difference is raw material composition and the proportioning thereof of cementing agent: cement 46.22%, quartz sand 23.23%, flyash 3.00%, high-activity metakaolin 12.00%, additive 0.55%, water 15.00%.And the preparation method of described high-activity metakaolin is as follows: the baking oven first block kaolin being placed in 100 scholar 5 DEG C is dried to constant weight, be 7um through grinding of ball grinder to kaolin median size, then the kaolin after levigate is put into chamber type electric resistance furnace calcine under the temperature condition of 900 DEG C and be incubated 1h, and temperature rise rate is 5-10 DEG C/min, then through vibrating the specific surface area>=12000m of abrasive dust to material 2/ kg, median size≤2.30um, collect and obtain high-activity metakaolin.Additive is polycarboxylic acids dehydragent (Suzhou Fuke New Construction Materials Co., Ltd), the esterified defoamer of modified polyether (Dongguan City De Feng Chemical Co., Ltd., model is DF-880) and the mixture that configures according to mass ratio 100:7:5 of AE air entrapment agent (Wuhan Qi Feng Science and Technology Ltd., model is QF-C1)
embodiment 5: substantially the same manner as Example 2, difference is raw material composition and the proportioning thereof of novel endurance Portland cement adhesive: cement 51.79%, quartz sand 28.00%, flyash 1.50%, high-activity metakaolin 6.00%, additive 0.48%, water 12.23%.
embodiment 6: substantially the same manner as Example 3, difference is the proportioning raw materials of novel endurance Portland cement adhesive: cement 55.00%, quartz sand 22.17%, flyash 1.50%, high-activity metakaolin 6.00%, additive 0.78%, water 14.55%.
embodiment 7: substantially the same manner as Example 4, difference is the proportioning raw materials of novel endurance Portland cement adhesive: cement 45.00%, quartz sand 27.90%, flyash 2.90%, high-activity metakaolin 11.80%, additive 0.40%, water 12.00%.
In addition, the raw material of existing cementing agent forms and proportioning: silicate cement 55.9%, quartz sand 31.3%, water reducer 1.0%, water 11.8%.
Employing is similar to GB/T17671-1999 " Test method for strength of hydraulic cement mortar (ISO) " and GB/T4307-2004 " insulator cementing cement glue " and tests, and the contrast test data of each embodiment and existing cementing agent are as shown in the table:
Ultimate compression strength (MPa) Folding strength (MPa) Drying shrinkage (%) Temperature cycle tolerance coefficient Low temperature tolerant coefficient
Embodiment 1 127.33 14.73 0.054 0.95 1.00
Embodiment 2 119.12 13.12 0.060 0.92 1.00
Embodiment 3 126.66 14.58 0.057 0.93 1.00
Embodiment 4 123.54 13.83 0.052 0.94 1.00
Embodiment 5 121.45 13.56 0.062 0.91 0.99
Existing cementing agent 126.87 14.51 0.067 0.90 0.99
Can see from upper table, mix a certain proportion of high-activity metakaolin, reduce the drying shrinkage of cement glue, improve pressure-proof and snap-resistent intensity, can effectively increase its frost resistance and weather resistance, optimum proportioning is embodiment 1.Test pressure-proof and snap-resistent, drying shrinkage, temperature cycle tolerance coefficient and low temperature tolerant coefficient also meet JB 4307-2004-T " requirement of insulator cementing cement glue ", can be used as the production of weather resistance cement glue for long life high-voltage porcelain insulator.
Above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.

Claims (5)

1. a weather resistance silicate cement cementing agent, is characterized in that, comprises following component and the weight percent of each component is:
Cement 45-55%;
Quartz sand 23-28%;
Flyash 1.5-3.0%;
High-activity metakaolin 6-12%;
Additive 0.4-0.8%;
Water 12-15%;
The preparation method of described high-activity metakaolin is as follows: the baking oven first block kaolin being placed in 100 scholar 5 DEG C is dried to constant weight, be 7-10um through grinding of ball grinder to kaolin median size, then the kaolin after levigate is put into chamber type electric resistance furnace calcine under the temperature condition of 750-900 DEG C and be incubated 1-3h, and temperature rise rate is 5-20 DEG C/min, then through vibrating the specific surface area>=12000m of abrasive dust to material 2/ kg, median size≤2.30um, collect and obtain high-activity metakaolin;
The described block kaolin starting material chemical constitution preparing high-activity metakaolin requires as SiO 2content>=45%, Al 2o 3content>=42%;
Described additive comprises polycarboxylic acids dehydragent, the esterified defoamer of modified polyether and AE air entrapment agent, and the mass ratio of the esterified defoamer of described polycarboxylic acids dehydragent, modified polyether and AE air entrapment agent is 100:5-7:3-5.
2. a kind of weather resistance silicate cement cementing agent according to claim 1, is characterized in that, described cement be greater than the silicate cement of 52.5 or 52.5R for label.
3. a kind of weather resistance silicate cement cementing agent according to claim 1, is characterized in that, the granularity of described quartz sand is 80-120 order.
4. a kind of weather resistance silicate cement cementing agent according to claim 1, is characterized in that, described flyash is I grade of flyash.
5. the preparation method of a weather resistance silicate cement cementing agent, it is characterized in that, step is as follows: first water and additive are mixed according to mass percent according to claim 1, and then add cement, quartz sand, flyash and high-activity metakaolin, continue to stir and mix for 3-8 minute, shaping immediately after taking-up; Shaping to be placed on 35-50 DEG C of protecting box steam-cured, and humidity is not less than 95%, the demoulding after 4 ~ 12 h, and demoulding examination body is placed in the hot water maintenance 48-96h that water temperature is 60-80 DEG C, finally by namely obtaining described weather resistance silicate cement cementing agent after test passes.
CN201310310241.1A 2012-08-28 2013-07-23 A kind of weather resistance silicate cement cementing agent and preparation method thereof Active CN103360007B (en)

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CN201210309700.X 2012-08-28
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CN201210309700XA CN102786273A (en) 2012-08-28 2012-08-28 Novel durable portland cement adhesive and preparation method thereof
CN201310310241.1A CN103360007B (en) 2012-08-28 2013-07-23 A kind of weather resistance silicate cement cementing agent and preparation method thereof

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CN103664110B (en) * 2013-12-19 2016-06-29 中国中材国际工程股份有限公司 A kind of Cement adhesive for insulator
CN104140228A (en) * 2014-06-20 2014-11-12 张耀辰 High-strength cement adhesive
CN104299668B (en) * 2014-09-24 2017-12-05 深圳市航天新材科技有限公司 The geological cement and its curing of radioactive incineration ash solidification
CN104671725B (en) * 2015-01-19 2017-07-11 武汉金磊珂建材科技有限公司 A kind of morning strong insulator cement adhesive
CN105110725A (en) * 2015-07-23 2015-12-02 江苏南瓷绝缘子股份有限公司 Fluid-type cement adhesive, and preparation method thereof
CN107500651A (en) * 2017-09-01 2017-12-22 国网内蒙古东部电力有限公司电力科学研究院 A kind of extremely cold type cement glue
CN107777964B (en) * 2017-09-28 2020-07-24 江苏南瓷绝缘子股份有限公司 Super low temperature resistant adhesive
CN107663053B (en) * 2017-10-24 2020-07-31 河北晨阳工贸集团有限公司 Construction process for pasting soft and beautiful soft stone in indoor floor decoration
CN110931186B (en) * 2019-12-11 2021-06-18 江西高鑫电瓷电器有限公司 Cementing process of high-voltage electric porcelain

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CN102001844A (en) * 2009-11-17 2011-04-06 中国铁道科学研究院铁道建筑研究所 Low-shrink anchorage sealing material for CRTS I type ballastless track slabs of high speed railway
CN102243914A (en) * 2010-05-13 2011-11-16 苏州爱建电瓷有限公司 Binding process of insulator

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