CN102838310A - Multifunctional premix mortar thickening material and preparation method thereof - Google Patents
Multifunctional premix mortar thickening material and preparation method thereof Download PDFInfo
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- CN102838310A CN102838310A CN2012103541842A CN201210354184A CN102838310A CN 102838310 A CN102838310 A CN 102838310A CN 2012103541842 A CN2012103541842 A CN 2012103541842A CN 201210354184 A CN201210354184 A CN 201210354184A CN 102838310 A CN102838310 A CN 102838310A
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Abstract
The invention discloses a multifunctional premix mortar thickening material and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out drying pretreatment on bentonite, kaolin and fly ash; (2) after premixing the bentonite, kaolin and fly ash obtained in the step (1) with surfactant and calcium sulfate, grinding in a grinding machine; and (3) adding hybrid modified rubber powder and the raw material obtained in the step (2) into a mixing machine, and mixing to obtain the multifunctional premix mortar thickening material. By producing the thickening material mainly from inorganic materials by a grinding technique, the invention can ensure the bonding reaction of the inorganic powder materials with the surfactant and modifier, thereby forming a novel organic/inorganic composite mortar additive; and besides, the added nano hybrid modified scrap rubber powder can effectively enhance the water permeation resistance of the mortar, improve the freezing resistance and heat-insulating property of the mortar, and enhance the strength of the mortar.
Description
Technical field
The present invention relates to premixing mortar water-keeping thickening material technical field, be specifically related to a kind of multifunctional type premixing mortar multiviscosisty material and preparation method thereof.
Background technology
The premixing mortar water-keeping thickening material means and is used for the non-lime type powder material that premixing mortar improves mortar operability and water retention capacity, minimizing shrinkage cracking.The main at present water-keeping thickening material that adopts is a mortar densification powder.Densification powder gives dry-mix suitable denseness and water-retentivity, and it can avoid mortar before sclerosis, to produce deposition, bleeding and moisture evaporation, and can improve the performance of the final hardened paste of mortar.Water-keeping thickening material has played keying action in the preparation dry-mixed mortar.
The domestic mortar water-keeping thickening material of developing mostly is that grout additive commonly used such as compound the preparation with inorganic powder material of ether of cellulose, starch ethers, Z 150PH or redispersable latex powder are mixed at present, does not form a kind of new mortar densification material.
In addition; When requiring premixing mortar to have properties such as other performances such as water resistance, heat-insulating property, anti-freezing property; Often in mortar, add various additives accordingly; Therefore the also corresponding raising of requirement of this equipment that mortar is produced, metering condition often causes that the mortar production cost increases, the quality control difficulty is big.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency that prior art exists, a kind of multifunctional type premixing mortar multiviscosisty material and preparation method thereof is provided.This multiviscosisty material is main with inorganic materials, adopts the grinding technics technology to carry out the production of multiviscosisty material.On the one hand, this production technique can be guaranteed inorganic powder material and tensio-active agent, properties-correcting agent generation bonding reaction, thereby forms the compound grout additive of a kind of novel organic-inorganic; On the other hand, in the multiviscosisty material, add nano hybridization modification waste Crumb rubber, can effectively improve the water impermeability of mortar, improved the frost resistance and the thermal and insulating performance of mortar, and can improve the intensity of mortar.The technical solution adopted for the present invention to solve the technical problems is following.
A kind of preparation method of multifunctional type premixing mortar water-keeping thickening material comprises the steps:
(1) wilkinite, kaolin, flyash are dried pre-treatment;
(2) in grinding machine, grind after wilkinite, kaolin, flyash and the tensio-active agent that step (1) is obtained, the calcium sulfate pre-mixing;
(3) hybrid modified glue powder and step (2) are ground the raw material that obtains and add in the mixing machine and mix, obtain said multifunctional type premixing mortar multiviscosisty material.
Further optimize, each raw materials in part by weight is among the preparation method of above-mentioned multifunctional type premixing mortar water-keeping thickening material:
Wilkinite 20-80
Kaolin 20-80
Flyash 5-10
Tensio-active agent 0.1-1
Hybrid modified glue powder 5-10
Calcium sulfate 1-5.
Further optimize, described tensio-active agent comprises at least a in X 2073, the sodium lignosulfonate.
Further optimize, the weight percent content of the said raw material of step (1) moisture content before going into grinding machine is less than 0.5% among the preparation method of above-mentioned multifunctional type premixing mortar water-keeping thickening material.
Further optimize, the milling time described in the step (2) is 5～10min among the preparation method of above-mentioned multifunctional type premixing mortar water-keeping thickening material.
Further optimize, the said blended time of step (3) is 3～5min.
Further optimize, said hybrid modified glue powder, preparation method thereof is following:
(1) adopts the nano modification technology, waste Crumb rubber is carried out hybrid modification, and introduce hydrophilic radical, prepare a series of hybrid modified glue powders that contain hydrophilic radical;
(2) above-mentioned hybrid modified glue powder is dried to constant weight.
The present invention also provides the multifunctional type premixing mortar that is made by said preparation method water-keeping thickening material, and it has water conservation, thickening power, improves mortar ultimate compression strength, anti-permeability performance, and has certain insulation and sound absorption function.
Described hybrid modified glue powder, preparation method thereof is following:
(1) adopt the nano modification technology, waste Crumb rubber carried out hybrid modification, and introduce hydrophilic radical such as hydroxyl, amino, acrylate-based, acrylamido, epoxy and etc. group, prepare a series of hybrid modified glue powders that contain hydrophilic radical.Said hybrid modification can adopt the disclosed arbitrary method of modifying of following Chinese patent document: be the modified glue powder nano composite material in silicon source and preparation method thereof (application number 200710032515.X, publication number CN101220179) with the water glass; Silicon-aluminium binary hybrid modified glue powder nano composite material and preparation method thereof (application number 200710032527.2, publication number CN101225196); A kind of modified glue powder nano composite material and preparation method thereof (application number 200710029124.2, publication number CN101113216).
(2) above-mentioned hybrid modified glue powder is dried to constant weight.
The present invention is through the synergy of said technology and raw material; Make prepared thickening material have obvious workability and the water-retentivity of improving mortar; Increase mortar strength, effectively improve frost resistance, waterproof impervious characteristic, thermal and insulating performance and the sound absorbing capabilities of mortar.
More specifically, compared with prior art, the present invention has following advantage and beneficial effect:
1. this water-keeping thickening material grout additive commonly used such as admixture methyl cellulose ether, starch ethers, Z 150PH and redispersable latex powder not is main with inorganic materials, adopts grinding+blended secondary charging technique technology to carry out the production of multiviscosisty material.This production technique can be guaranteed inorganic powder material and tensio-active agent, properties-correcting agent generation bonding reaction, thereby forms the compound grout additive of a kind of novel organic-inorganic.
2. this water-keeping thickening material has functions such as water conservation, thickening, enhancing, impervious, insulation, sound absorption simultaneously, can improve the intensity of premixing mortar simultaneously.Basically need not add other chemicaladditivess again when producing premixing mortar, can effectively reduce premixing mortar production control cost, make premixing mortar have certain water proof anti-seepage and insulation, sound absorbing capabilities simultaneously.
3. this water-keeping thickening material utilizes low-grade wilkinite and waste Crumb rubber, flyash equal industrial residue to be main raw material, belongs to Green Product.
4. the mortar water-keeping thickening material of the present invention preparation is applicable to various premixing mortar production devices, thickening material can be well with mortar in other compatible, can in premixing mortar, be uniformly dispersed.
5. the premixing mortar quality that product of the present invention is mixed with complies with the national standard requirements.
6. the premixing mortar water-keeping thickening material preparation method of the present invention's preparation is simple.
Embodiment
Below in conjunction with instance practical implementation of the present invention is described further, but enforcement of the present invention and protection domain are not limited thereto.
Embodiment 1
Table 1 is the composition of raw materials (mass fraction) that the present invention prepares multifunctional type premixing mortar water-keeping thickening material.Wilkinite is four meeting nappe outlier, 100 types in the raw material; Kaolinic SiO
2Greater than 50%, Al
2O
3Content is 12～18%; Flyash is the secondary ash; X 2073 and sodium lignosulfonate are chemically pure reagent; Sodium sulfate is technical grade, Na
2SO
4>=99%; Hybrid modified glue powder adopts patent of invention " being the modified glue powder nano composite material in silicon source and preparation method thereof with the water glass " (application number 200710032515.X, publication number CN101220179) disclosed method to make and get final product.
The composition of raw materials of table 1 water-keeping thickening material (mass fraction)
| ? | 1# | 2# | 3# | 4# | 5# |
| Wilkinite | 80 | 80 | 80 | 80 | 80 |
| Kaolin | 10 | 10 | 10 | 10 | 10 |
| Flyash | 10 | 10 | 10 | 10 | 10 |
| X 2073 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Sodium lignosulfonate | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Hybrid modified glue powder | 3 | 5 | 7 | 9 | 11 |
| Sodium sulfate | 3 | 3 | 3 | 3 | 3 |
Its concrete preparation method comprises the steps:
(1) wilkinite, kaolin, flyash are dried pre-treatment.
(2) the described material of step (1) and tensio-active agent, calcium sulfate are carried out grinding after the pre-mixing in proportion.
(3) raw material after step (2) is ground adds in proportion with hybrid modified glue powder and mixes 5min in the mixing machine, thereby obtains multifunctional type premixing mortar multiviscosisty material.
The weight percent content of the raw material moisture content before going into grinding machine described in the step (1) is less than 0.5%.
Milling time described in the step (2) is 10min.
The viscosifying agent that obtains is added in the premixing mortar, and cement is the general silicon 42.5R cement that Guangzhou stone well water mud company produces, and sand is medium sand, and northern rivers sand, flyash are the secondary ash.Mortar mix ratio is seen table 2 (mass percent).
Table 2
| ? | Sand | Cement | Flyash | Densification powder |
| Per-cent % | 76.8 | 12.8 | 6.4 | 4 |
Prepared premixing mortar is detected, and water consumption is 16% of a mortar quality.Its result such as table 3.
Table 3
Embodiment 2
Table 4 is composition of raw materials (mass fraction) that the present invention prepares multifunctional type premixing mortar water-keeping thickening material.Wilkinite is four meeting nappe outlier, 100 types in the raw material; Kaolinic SiO
2Greater than 50%, Al
2O
3Be 12～18%; Flyash is the secondary ash; X 2073 and sodium lignosulfonate are chemically pure reagent; Sodium sulfate is technical grade, Na
2SO
4>=99%; Hybrid modified glue powder adopts patent of invention " being the modified glue powder nano composite material in silicon source and preparation method thereof with the water glass " (application number 200710032515.X, publication number CN101220179) disclosed method to make and get final product.
Table 4
| ? | 1# | 2# | 3# | 4# | 5# |
| Wilkinite | 60 | 70 | 80 | 90 | 90 |
| Kaolin | 30 | 20 | 10 | 0 | 0 |
| Flyash | 10 | 10 | 10 | 10 | 10 |
| X 2073 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 |
| Sodium lignosulfonate | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Hybrid modified glue powder | 5 | 5 | 5 | 5 | 5 |
| Sodium sulfate | 3 | 3 | 3 | 3 | 5 |
Its concrete preparation method comprises the steps:
(1) wilkinite, kaolin, flyash are dried pre-treatment.
(2) the described material of step (1) and tensio-active agent, calcium sulfate are carried out grinding after the pre-mixing in proportion.
(3) raw material after step (2) is ground adds in proportion with hybrid modified glue powder and mixes 5min in the mixing machine, thereby obtains multifunctional type premixing mortar multiviscosisty material.
The weight percent content of the raw material moisture content before going into grinding machine described in the step (1) is less than 0.5%.
Milling time described in the step (2) is 5min.
The viscosifying agent that obtains is added in the premixing mortar, and cement is the general silicon 42.5R cement that Guangzhou stone well water mud company produces, and sand is medium sand, and northern rivers sand, flyash are the secondary ash.Mortar mix ratio is seen table 5 (mass percent).
Table 5
| ? | Sand | Cement | Flyash | Densification powder |
| Per-cent % | 76.8 | 12.8 | 6.4 | 4 |
Prepared premixing mortar is detected by GB/T25181-2010 " premixing mortar ", and water consumption is 14% of a mortar quality.Its result such as table 6.
Table 6
Claims (9)
1. the preparation method of a multifunctional type premixing mortar water-keeping thickening material is characterized in that comprising the steps:
(1) wilkinite, kaolin, flyash are dried pre-treatment;
(2) in grinding machine, grind after wilkinite, kaolin, flyash and the tensio-active agent that step (1) is obtained, the calcium sulfate pre-mixing;
(3) hybrid modified glue powder and step (2) are ground the raw material that obtains and add in the mixing machine and mix, obtain said multifunctional type premixing mortar multiviscosisty material.
2. the preparation method of multifunctional type premixing mortar water-keeping thickening material according to claim 1 is characterized in that each raw materials in part by weight is:
Wilkinite 20-80
Kaolin 20-80
Flyash 5-10
Tensio-active agent 0.1-1
Hybrid modified glue powder 5-10
Calcium sulfate 1-5.
3. the preparation method of multifunctional type premixing mortar water-keeping thickening material according to claim 1 is characterized in that described tensio-active agent comprises at least a in X 2073, the sodium lignosulfonate.
4. the preparation method of multifunctional type premixing mortar water-keeping thickening material according to claim 1, the weight percent content that it is characterized in that the said raw material of step (1) moisture content before going into grinding machine is less than 0.5%.
5. the preparation method of multifunctional type premixing mortar water-keeping thickening material according to claim 1 is characterized in that the milling time described in the step (2) is 5～10min.
6. the preparation method of multifunctional type premixing mortar water-keeping thickening material according to claim 1 is characterized in that the said blended time of step (3) is 3～5min.
7. the preparation method of multifunctional type premixing mortar water-keeping thickening material according to claim 1 is characterized in that said hybrid modified glue powder, preparation method thereof is following:
(1) adopts the nano modification technology, waste Crumb rubber is carried out hybrid modification, and introduce hydrophilic radical, prepare a series of hybrid modified glue powders that contain hydrophilic radical;
(2) above-mentioned hybrid modified glue powder is dried to constant weight.
8. the preparation method of multifunctional type premixing mortar water-keeping thickening material according to claim 7 is characterized in that said hydrophilic radical comprises more than one in hydroxyl, amino, acrylate-based, acrylamido, the epoxide group.
9. the multifunctional type premixing mortar water-keeping thickening material that makes by each said preparation method of claim 1 ~ 8.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104276784A (en) * | 2014-09-30 | 2015-01-14 | 杭州天翔新型建材有限公司 | Waterproof thickening powder for dry-mixed ordinary mortar |
| CN104692742A (en) * | 2015-02-15 | 2015-06-10 | 李文超 | Nano polymer anti-cracking and waterproof mortar |
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| CN101007720A (en) * | 2007-01-25 | 2007-08-01 | 上海市建筑科学研究院(集团)有限公司 | Highly effective water-keeping thickening material and cement mortar produced therefrom |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276784A (en) * | 2014-09-30 | 2015-01-14 | 杭州天翔新型建材有限公司 | Waterproof thickening powder for dry-mixed ordinary mortar |
| CN104276784B (en) * | 2014-09-30 | 2016-04-06 | 杭州天翔新型建材有限公司 | A kind of waterproof densification powder being dry mixed ordinary mortar |
| CN104692742A (en) * | 2015-02-15 | 2015-06-10 | 李文超 | Nano polymer anti-cracking and waterproof mortar |
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| CN102838310B (en) | 2014-08-06 |
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Effective date of registration: 20190606 Address after: 510160 No. 6, Tangqian Xinjie, Nanan Road, Liwan District, Guangzhou City, Guangdong Province Co-patentee after: South China University of Technology Patentee after: Guangdong Guangye Testing Co., Ltd. Co-patentee after: Guangdong Building Material Research Institute Address before: 510160 No. 6, Tangqian Xinjie, Nanan Road, Liwan District, Guangzhou City, Guangdong Province Co-patentee before: South China University of Technology Patentee before: Guangdong Building Material Research Institute |