CN108059415A - A kind of stalk fibre toughening mortar and preparation method thereof - Google Patents
A kind of stalk fibre toughening mortar and preparation method thereof Download PDFInfo
- Publication number
- CN108059415A CN108059415A CN201810148458.XA CN201810148458A CN108059415A CN 108059415 A CN108059415 A CN 108059415A CN 201810148458 A CN201810148458 A CN 201810148458A CN 108059415 A CN108059415 A CN 108059415A
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- China
- Prior art keywords
- parts
- stalk fibre
- mortar
- ether
- toughening
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Classifications
-
- 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
- C04B28/04—Portland cements
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
Abstract
The invention discloses a kind of stalk fibre toughening mortar, in terms of parts by weight, including following components:20 40 parts of Portland cement, 50 70 parts of perlite, 15 35 parts of iron tailings, give up 15 30 parts of porcelain powder, 15 20 parts of slag powders, 8 20 parts of stalk fibre, 1 1.5 parts of starch ether, 0.5 2 parts of hydroxypropyl cellulose, 38 parts of polyvinyl alcohol, 16 parts of styrene-acrylic emulsion, 24 parts of methyl cellulose ether.Step is as follows:First by Portland cement, perlite, iron tailings powder, give up porcelain powder, and starch ether is uniformly mixed, then adds stalk fibre, hydroxypropylcelluloether ether, polyvinyl alcohol, and styrene-acrylic emulsion and methyl cellulose ether mixing, finally plus water is mixed to prepare.The present invention solves existing mortar causes tensile strength low because of poor toughness, it is easy to crack the problems such as.
Description
Technical field
The present invention relates to building material fields, and in particular to a kind of stalk fibre toughening mortar and preparation method thereof.
Background technology
Mortar be building on lay bricks use cohere substance, by a certain proportion of sand and cementing material (cement, lime
Cream, clay etc.) it adds water into.Mortar is common have cement mortar, mixed mortar (or being cement-lime mortar), lime mortar and
Clay mortar.
Existing mortar is usually the sand by silicate series cement, the materials such as additive and water, according to a certain percentage
By certain stirring technique and a kind of manufactured construction material, for building by laying bricks or stones and plastering engineering.
However, existing mortar is since poor toughness is so as to cause tensile strength low, it is easy to crack the problems such as, limit mortar
It uses, and existing tougher material is of high cost, and environment is polluted, it is unfavorable for sustainable development.
The content of the invention
The present invention is directed to the problem of above-mentioned mortar poor toughness, provides a kind of stalk fibre toughening mortar and its preparation side
Method, stalk fibre toughening mortar of the invention reduce local stress collection by reducing crackle, the continuity of amplified medium material
In, reinforced mortar connectivity and enhancing crack deflection toughness, so as to improve the toughness of mortar material.
The technical solution adopted by the present invention is as follows:
A kind of stalk fibre toughening mortar, in terms of parts by weight, including following components:20-40 parts of Portland cement,
50-70 parts of perlite, 15-35 parts of iron tailings, give up 15-30 parts of porcelain powder, 15-20 parts of slag powders, 8-20 parts of stalk fibre, starch ether
1-1.5 parts, 0.5-2 parts of hydroxypropyl cellulose, 3-8 parts of polyvinyl alcohol, 1-6 parts of styrene-acrylic emulsion, 2-4 parts of methyl cellulose ether.
The mortar of the present invention is using perlite as one of main ingredient, because perlite has, unit weight is light, thermal conductivity factor
Low, fire resistance is good, and sound insulation value is good, and gap is subtle, and chemical property is stablized, and drying shrinkage is small, the characteristics such as nontoxic, so as to
Increase the toughness of mortar;Stalk fibre is added simultaneously, stalk fibre belongs to light porous fibrous material, and elasticity modulus is relatively
It is low, as toughening element, the dry contraction of mortar early stage is reduced, inhibits the generation and growth of microcrack, while light porous and appearance
Weight is small, has good thermal and insulating performance, plays the effect that auxiliary improves heat-insulating property, and stalk fibre can absorb impact energy
Amount, effectively reduces crackle, and amplified medium material continuity reduces shock wave and is blocked caused stress raisers, so as to carry
The toughness of high mortar;And hydroxypropyl cellulose is high modulus fibre, and it is suitable with the elasticity modulus of mortar, significantly reduce guarantor's sand
The drying shrinkage of starch middle and later periods, so as to improve the toughness of mortar;In addition, hydroxypropyl cellulose, stalk fibre, methyl are fine
The plain ether of dimension, polyvinyl alcohol, styrene-acrylic emulsion is in the case of mutual cooperation so that the adhesive property of mortar is enhanced, so as to improve
The cohesive force and flexibility of mortar material;Starch ether as water-keeping thickening material, can improve the toughness of mortar in mortar simultaneously
And water-retaining property, starch ether makes the moisture in mortar be not easy to lose, and is progressively discharged within long period of time, and it is good to assign mortar
Good water-retaining property and workability, starch ether also act as the effect that sagging falls after prevention mortar is smeared.In addition, by recycling iron tail
Ore deposit and waste ceramic powder can not only be cost-effective as the raw material of mortar, but also can be damaged to avoid to environment, together
When iron tailings in metal powder and waste ceramic powder in ceramic powders can be dispersed in sand as disperse Second Phase Particle
Among slurry, crack propagation can be made to run into obstacle, crack deflection toughening occur, so as to increase the toughness of mortar material.
Preferably, in terms of parts by weight, including following components:25-35 parts of Portland cement, 55-65 parts of perlite,
20-30 parts of iron tailings, give up 20-25 parts of porcelain powder, 15-18 parts of slag powders, 10-15 parts of stalk fibre, 1.2-1.5 parts of starch ether, hydroxyl
1-1.5 parts of propyl cellulose, 4-7 parts of polyvinyl alcohol, 2-5 parts of styrene-acrylic emulsion, 3-4 parts of methyl cellulose ether.
Preferably, in terms of parts by weight, including following components:30 parts of Portland cement, 60 parts of perlite, iron tailings
25 parts of powder, give up 20 parts of porcelain powder, 15 parts of stalk fibre, 15 parts of slag powders, 1.2 parts of starch ether, 1.2 parts of hydroxypropyl cellulose, poly- second
5 parts of enol, 5 parts of styrene-acrylic emulsion, 3 parts of methyl cellulose ether.
Preferably, the stalk fibre be length≤5nm after shear treatment maize straw through over-richness be 8%
It dries and obtains after soaking with sodium hydroxide 10h.Maize straw eliminates plant fibre through the soaking with sodium hydroxide 10h that over-richness is 8%
Pectin in dimension, and leave interface between single fiber, can reinforcing fiber and material bond strength, improve the tensile strength of material,
Reinforcing material toughness.
Preferably, a kind of preparation method of stalk fibre toughening mortar, comprises the following steps:It accurately weighs by weight proportion
Various raw material, first by Portland cement, perlite, iron tailings powder, give up porcelain powder, and starch ether is uniformly mixed, is then stirring
Stalk fibre, hydroxypropylcelluloether ether, polyvinyl alcohol, styrene-acrylic emulsion and methyl cellulose ether are added in stir together during mixing
It mixes, then adds water stirring, it can construction usage after stirring evenly.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows:
1. the present invention reduces the dry contraction of mortar early stage by adding fibre stalk, inhibit the generation and growth of microcrack,
Crackle is effectively reduced, amplified medium material continuity reduces shock wave and is blocked caused stress raisers, so as to improve sand
The toughness of slurry./V stalk and hydroxypropyl cellulose, methyl cellulose ether, polyvinyl alcohol, styrene-acrylic emulsion are cooperating simultaneously
In the case of so that the adhesive property of mortar is enhanced, so as to improve the cohesive force of mortar material and flexibility.
2. the present invention is by the use of iron tailings and waste ceramic powder as one of raw material, can not only can be cost-effective, but also can
It is damaged to avoid to environment, and the ceramic powders in the metal powder and waste ceramic powder in iron tailings can be used as disperse the
Two-phase even particulate dispersion can make crack propagation run into obstacle among mortar, crack deflection toughening occur, so as to increase mortar
The toughness of material.
Specific embodiment
In order to which those skilled in the art is made to more fully understand technical scheme, with reference to specific embodiment pair
The present invention is described in further detail.
Embodiment 1
A kind of stalk fibre toughening mortar, in terms of parts by weight, including following components:20 parts of Portland cement, it is precious
50 parts of pearl rock, 15 parts of iron tailings, give up 15- parts of porcelain powder, 15 parts of slag powders, 8 parts of stalk fibre, 1 part of starch ether, hydroxypropyl cellulose
0.5 part, 3 parts of polyvinyl alcohol, 1 part of styrene-acrylic emulsion, 2 parts of methyl cellulose ether.
The stalk fibre be length≤5nm after shear treatment maize straw through over-richness be 8% hydroxide
Sodium dries acquisition after impregnating 10h.
The preparation method of the stalk fibre toughening mortar, comprises the following steps:Various originals are accurately weighed by weight proportion
Material, first by Portland cement, perlite, iron tailings powder, give up porcelain powder, and starch ether is uniformly mixed, then in whipping process
It is middle that stalk fibre, hydroxypropylcelluloether ether, polyvinyl alcohol, styrene-acrylic emulsion and methyl cellulose ether are added in into stirring together, then
Stirring is added water, it can construction usage after stirring evenly.
The test reference of stalk fibre toughening mortar described in the present embodiment《Building mortar basic performance tests method》JGJ/
The test method of T70-2009, basic performance test result are as shown in the table.
The cracking-resistant cement mortar test result of 1 embodiment 1 of table
Embodiment 2
A kind of stalk fibre toughening mortar, in terms of parts by weight, including following components:40 parts of Portland cement, it is precious
70 parts of pearl rock, 35 parts of iron tailings, give up 30 parts of porcelain powder, 20 parts of slag powders, 20 parts of stalk fibre, 1.5 parts of starch ether, hydroxy propyl cellulose
2 parts of element, 8 parts of polyvinyl alcohol, 6 parts of styrene-acrylic emulsion, 4 parts of methyl cellulose ether.
The stalk fibre be length≤5nm after shear treatment maize straw through over-richness be 8% hydroxide
Sodium dries acquisition after impregnating 10h.
The preparation method of the stalk fibre toughening mortar, comprises the following steps:Various originals are accurately weighed by weight proportion
Material, first by Portland cement, perlite, iron tailings powder, give up porcelain powder, and starch ether is uniformly mixed, then in whipping process
It is middle that stalk fibre, hydroxypropylcelluloether ether, polyvinyl alcohol, styrene-acrylic emulsion and methyl cellulose ether are added in into stirring together, then
Stirring is added water, it can construction usage after stirring evenly.
The test reference of stalk fibre toughening mortar described in the present embodiment《Building mortar basic performance tests method》JGJ/
The test method of T70-2009, basic performance test result are as shown in the table.
The cracking-resistant cement mortar test result of 2 embodiment 2 of table
Performance | Test result |
Setting time (h) | 8.0 |
Water retention (%) | 95 |
Tensile bond intensity (MPa) | 0.75 |
28 shrinking percentages (%) | 0.04 |
28 days compression strength (MPa) | 20.1 |
Embodiment 3
A kind of stalk fibre toughening mortar, in terms of parts by weight, including following components:25 parts of Portland cement, it is precious
55 parts of pearl rock, 20 parts of iron tailings, give up 20 parts of porcelain powder, 15 parts of slag powders, 10 parts of stalk fibre, 1.2 parts of starch ether, hydroxy propyl cellulose
1 part of element, 4 parts of polyvinyl alcohol, 2 parts of styrene-acrylic emulsion, 3 parts of methyl cellulose ether.
The stalk fibre be length≤5nm after shear treatment maize straw through over-richness be 8% hydroxide
Sodium dries acquisition after impregnating 10h.
The preparation method of the stalk fibre toughening mortar, comprises the following steps:Various originals are accurately weighed by weight proportion
Material, first by Portland cement, perlite, iron tailings powder, give up porcelain powder, and starch ether is uniformly mixed, then in whipping process
It is middle that stalk fibre, hydroxypropylcelluloether ether, polyvinyl alcohol, styrene-acrylic emulsion and methyl cellulose ether are added in into stirring together, then
Stirring is added water, it can construction usage after stirring evenly.
The test reference of stalk fibre toughening mortar described in the present embodiment《Building mortar basic performance tests method》JGJ/
The test method of T70-2009, basic performance test result are as shown in the table.
The cracking-resistant cement mortar test result of 3 embodiment 3 of table
Performance | Test result |
Setting time (h) | 7.2 |
Water retention (%) | 94 |
Tensile bond intensity (MPa) | 0.80 |
28 shrinking percentages (%) | 0.042 |
28 days compression strength (MPa) | 20.9 |
Embodiment 4
A kind of stalk fibre toughening mortar, in terms of parts by weight, including following components:35 parts of Portland cement, it is precious
65 parts of pearl rock, 30 parts of iron tailings, give up 25 parts of porcelain powder, 18 parts of slag powders, 15 parts of stalk fibre, 1.5 parts of starch ether, hydroxy propyl cellulose
1.5 parts of element, 7 parts of polyvinyl alcohol, 5 parts of styrene-acrylic emulsion, 4 parts of methyl cellulose ether.
The stalk fibre be length≤5nm after shear treatment maize straw through over-richness be 8% hydroxide
Sodium dries acquisition after impregnating 10h.
The preparation method of the stalk fibre toughening mortar, comprises the following steps:Various originals are accurately weighed by weight proportion
Material, first by Portland cement, perlite, iron tailings powder, give up porcelain powder, and starch ether is uniformly mixed, then in whipping process
It is middle that stalk fibre, hydroxypropylcelluloether ether, polyvinyl alcohol, styrene-acrylic emulsion and methyl cellulose ether are added in into stirring together, then
Stirring is added water, it can construction usage after stirring evenly.
The test reference of stalk fibre toughening mortar described in the present embodiment《Building mortar basic performance tests method》JGJ/
The test method of T70-2009, basic performance test result are as shown in the table.
The cracking-resistant cement mortar test result of 4 embodiment 4 of table
Performance | Test result |
Setting time (h) | 6.5 |
Water retention (%) | 92 |
Tensile bond intensity (MPa) | 0.75 |
28 shrinking percentages (%) | 0.06 |
28 days compression strength (MPa) | 19.8 |
Embodiment 5
A kind of stalk fibre toughening mortar, in terms of parts by weight, including following components:30 parts of Portland cement, it is precious
60 parts of pearl rock, 25 parts of iron tailings powder, give up 20 parts of porcelain powder, 15 parts of stalk fibre, 15 parts of slag powders, 1.2 parts of starch ether, and hydroxypropyl is fine
1.2 parts of dimension element, 5 parts of polyvinyl alcohol, 5 parts of styrene-acrylic emulsion, 3 parts of methyl cellulose ether.
The stalk fibre be length≤5nm after shear treatment maize straw through over-richness be 8% hydroxide
Sodium dries acquisition after impregnating 10h.
The preparation method of the stalk fibre toughening mortar, comprises the following steps:Various originals are accurately weighed by weight proportion
Material, first by Portland cement, perlite, iron tailings powder, give up porcelain powder, and starch ether is uniformly mixed, then in whipping process
It is middle that stalk fibre, hydroxypropylcelluloether ether, polyvinyl alcohol, styrene-acrylic emulsion and methyl cellulose ether are added in into stirring together, then
Stirring is added water, it can construction usage after stirring evenly.
The test reference of stalk fibre toughening mortar described in the present embodiment《Building mortar basic performance tests method》JGJ/
The test method of T70-2009, basic performance test result are as shown in the table.
The cracking-resistant cement mortar test result of 5 embodiment 5 of table
Performance | Test result |
Setting time (h) | 6.5 |
Water retention (%) | 95.5 |
Tensile bond intensity (MPa) | 0.78 |
28 shrinking percentages (%) | 0.035 |
28 days compression strength (MPa) | 22.3 |
The above is the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art,
Without departing from the technical principles of the invention, several improvement and modification can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of stalk fibre toughening mortar, which is characterized in that in terms of parts by weight, including following components:Normal silicate water
20-40 parts of mud, 50-70 parts of perlite, 15-35 parts of iron tailings, give up 15-30 parts of porcelain powder, 15-20 parts of slag powders, stalk fibre 8-
20 parts, 1-1.5 parts of starch ether, 0.5-2 parts of hydroxypropyl cellulose, 3-8 parts of polyvinyl alcohol, 1-6 parts of styrene-acrylic emulsion, methylcellulose
2-4 parts of ether.
2. a kind of stalk fibre toughening mortar according to claim 1, which is characterized in that in terms of parts by weight, including with
Lower component:25-35 parts of Portland cement, 55-65 parts of perlite, 20-30 parts of iron tailings, give up 20-25 parts of porcelain powder, slag powders
15-18 parts, 10-15 parts of stalk fibre, 1.2-1.5 parts of starch ether, 1-1.5 parts of hydroxypropyl cellulose, 4-7 parts of polyvinyl alcohol, benzene
2-5 parts of acrylic emulsion, 3-4 parts of methyl cellulose ether.
3. a kind of stalk fibre toughening mortar according to claim 2, which is characterized in that in terms of parts by weight, including with
Lower component:30 parts of Portland cement, 60 parts of perlite, 25 parts of iron tailings powder, give up 20 parts of porcelain powder, 15 parts of stalk fibre, ore deposit
15 parts of ground-slag, 1.2 parts of starch ether, 1.2 parts of hydroxypropyl cellulose, 5 parts of polyvinyl alcohol, 5 parts of styrene-acrylic emulsion, methyl cellulose ether 3
Part.
4. according to a kind of stalk fibre toughening mortar of claim 1-3 any one of them, which is characterized in that the stalk fibre
It is maize straw drying acquisition after over-richness is 8% soaking with sodium hydroxide 10h of length≤5nm after shear treatment.
5. a kind of a kind of preparation method of stalk fibre toughening mortar described in claim 1-4 any one, which is characterized in that
Comprise the following steps:Various raw material are accurately weighed by weight proportion, first by Portland cement, perlite, iron tailings powder,
Useless porcelain powder, starch ether is uniformly mixed, then by stalk fibre, hydroxypropylcelluloether ether, polyvinyl alcohol, phenylpropyl alcohol in whipping process
Lotion and methyl cellulose ether add in stirring together, then add water stirring, can construction usage after stirring evenly.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110627423A (en) * | 2019-10-23 | 2019-12-31 | 深圳市中浦信建设集团有限公司 | High-heat-resistance self-insulation building block for energy-saving building and preparation process thereof |
CN111154408A (en) * | 2020-01-10 | 2020-05-15 | 林培双 | Preparation method of antibacterial high-strength ceramic tile glue |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104649641A (en) * | 2015-02-09 | 2015-05-27 | 同济大学 | Chopped straw fiber-toughened inorganic thermal insulation mortar and using method thereof |
CN107417188A (en) * | 2017-08-28 | 2017-12-01 | 河南胜泽建筑保温工程有限公司 | A kind of cracking-resistant cement mortar |
-
2018
- 2018-02-13 CN CN201810148458.XA patent/CN108059415A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104649641A (en) * | 2015-02-09 | 2015-05-27 | 同济大学 | Chopped straw fiber-toughened inorganic thermal insulation mortar and using method thereof |
CN107417188A (en) * | 2017-08-28 | 2017-12-01 | 河南胜泽建筑保温工程有限公司 | A kind of cracking-resistant cement mortar |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110627423A (en) * | 2019-10-23 | 2019-12-31 | 深圳市中浦信建设集团有限公司 | High-heat-resistance self-insulation building block for energy-saving building and preparation process thereof |
CN111154408A (en) * | 2020-01-10 | 2020-05-15 | 林培双 | Preparation method of antibacterial high-strength ceramic tile glue |
CN111154408B (en) * | 2020-01-10 | 2022-07-08 | 广东合睿智造新材料有限公司 | Preparation method of antibacterial high-strength ceramic tile glue |
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Application publication date: 20180522 |