CN110282940A - Crack resist at mortar is used in a kind of repairing of finishing pipeline wall chase - Google Patents

Crack resist at mortar is used in a kind of repairing of finishing pipeline wall chase Download PDF

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Publication number
CN110282940A
CN110282940A CN201811376004.4A CN201811376004A CN110282940A CN 110282940 A CN110282940 A CN 110282940A CN 201811376004 A CN201811376004 A CN 201811376004A CN 110282940 A CN110282940 A CN 110282940A
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China
Prior art keywords
weight
parts
mortar
repairing
pipeline wall
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CN201811376004.4A
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Chinese (zh)
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CN110282940B (en
Inventor
王永根
朱快
杨大平
祁锦锦
陈子豪
蔡亚男
水清清
张红尧
马江剑
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Greentown Decoration Engineering Group Co Ltd
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Greentown Decoration Engineering Group Co Ltd
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Publication of CN110282940A publication Critical patent/CN110282940A/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions 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 calcium sulfate cements
    • C04B28/142Compositions 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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
    • C04B28/144Compositions 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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34Non-shrinking or non-cracking materials
    • C04B2111/343Crack resistant materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72Repairing or restoring existing buildings or building materials

Abstract

The invention belongs to building mortar technical fields.The invention discloses a kind of finishing pipeline wall chase repairing crack resist at mortar, it is made by following raw material: 0.9~1.5 parts by weight of portland cement, 0.2~0.6 parts by weight of land plaster, middle 4.2~6.4 parts by weight of sand, 0.8~1.2 parts by weight of water, 0.16~0.24 parts by weight of fiber, additionally add the additive of following weight percent, 0.14~0.20wt% of water-retaining agent, 0.14~0.20wt% of rubber powder.The present invention solves the problems, such as that mortar causes subsequent fine fitment surface layer hollowing to crack to form ruined phase after repairing pipeline wall chase in the prior art, finishing pipeline wall chase repairing in the present invention has certain repairing adhesion strength after being repaired with crack resist at mortar, aquation, the small hydration time of condensation process shrinkage ratio are short, realize that wall, wall chase repair indehiscent feature.

Description

Crack resist at mortar is used in a kind of repairing of finishing pipeline wall chase
Technical field
The present invention relates to building mortar technical fields, more particularly, to a kind of finishing pipeline wall chase repairing crack resist at mortar.
Background technique
It generally can all be related to steel pipe buried in advance fluting process in construction and decoration work progress concealed work early period, drilling and pipe-laying is complete Need to carry out wall chase patch work after, the repairing that wall chase is directed in existing construction generally uses similar wall plaster cement bonded sand It starches composite material to carry out joint filling repairing, smooth out, since general conventional cement mortar can generate uneven receipts in aquation, pre-hardening process Contracting generates different hollowing crackings even dropping situations so as to cause repaired position, causes hollowing to open to subsequent fine fitment surface layer Split ruined phase.
Since the size of pipeline wall chase is about several centimetres to more than ten centimetres, it was both not belonging to large-scale metope cavity, had not also been belonged to In corner seam crossing gap, can not be repaired using wall hole patching material, such wall chase is difficult to fill up completely, and hydration time is long And the later period can generate situations such as cavity, can not also be handled using joint filling mortar, in the later period because ununiform shrinkage can generate More crack.
In the prior art, although having some crack resist at mortar, such as Chinese patent notification number CN103435321A, one is disclosed Kind of crack resist at mortar discloses a kind of lightweight crack resist at mortar such as Chinese patent notification number CN104418563A, but above two sand Slurry all can not be for using when the repairing of finishing pipeline wall chase in the present invention, and hydration time is long, and can still generate some cracks, shadow Ring sense organ.
Summary of the invention
Energy is designed for finishing pipeline wall chase repairing use environment to solve the above problems, the present invention provides one kind It enough greatly shortens hydration time and prevents the finishing pipeline wall chase repairing crack resist at mortar of crack generation.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of finishing pipeline wall chase repairing crack resist at mortar, is made: 0.9~1.5 parts by weight of portland cement, stone by following raw material 0.2~0.6 parts by weight of cream powder, middle 4.2~6.4 parts by weight of sand, 0.8~1.2 parts by weight of water, 0.16~0.24 parts by weight of fiber, Additionally add the additive of following weight percent, 0.14~0.20wt% of water-retaining agent, 0.14~0.20wt% of rubber powder.
Preferably, finishing pipeline wall chase repairing is made with crack resist at mortar by the raw material of following parts by weight: portland cement 1.0 parts by weight, 0.225 parts by weight of land plaster, middle 4.2 parts by weight of sand, 0.8~1.0 parts by weight of water, 0.18 parts by weight of fiber, this The additive of following weight percent, water-retaining agent 0.16wt%, rubber powder 0.16wt% are also added outside.
Preferably, land plaster is desulfurization gypsum powder.
Preferably, fiber is at least one of lignin fibre or polypropylene fibre of 10~20mm long.
Preferably, rubber powder is one of polyvinyl alcohol resin rubber powder or polyacrylic resin rubber powder.
Preferably, the partial size of middle sand is 0.25~0.50mm.
Preferably, the median particle diameter D of middle sand50For 0.30~0.35mm, fineness modulus is 2.7~2.3.
This use environment is repaired according to finishing pipeline wall chase in the present invention, devising one kind can be before proof strength Shortening hydration time is put, guarantees the efficient progress of decoration construction, thus the additive amount for reducing portland cement in component, The particle diameter distribution for increasing the additive amount of gypsum, and desulfurized gypsum being selected to have higher purity and more concentrate, can more preferably more Mend the problem of bringing after reducing because of portland cement.The reduction of portland cement, along with addition water-retaining agent can substantially reduce Hydration time, existing mortar hydration time are 8 more than hour, and the crack resist at mortar hydration time in the present invention only needs 45~60 points Clock shortens construction period, and thus bringing maximum benefit is the infiltration and occlusion that can promote between mortar particle, also can Promote being engaged between mortar and pipeline wall chase wall, intensity is repaired in enhancing, and what solution later period wall and wall chase mend cracked asks Topic.
Preferably, water-retaining agent is made by following methods, by palygorskite crush then with 1.6~2.0 times of palygorskite weight 1.5mol/L potassium acetate solution mixing, with revolving speed ball-milling treatment 2~2.5 hours of 1400~1900rpm, be then allowed to stand ageing 12~24 hours obtained palygorskite mixing slurries activation palygorskites are made by the drying of palygorskite mixing slurry and at 450~500 DEG C, so The dihexadecyldimethylammonium bromide of 0.2~0.4 times of palygorskite and its weight, 0.07~0.08 times of its weight will be activated afterwards Silane coupling agent, the water mixing of 0.9~1.3 times of its weight and ball milling 1~1.5 hour under 2000~3000rpm revolving speed, it is dry Modified paligorskite is made afterwards, then 0.05~0.07 times of palygorskite weight of polyvinyl alcohol is dissolved in the water, modified slope is added Thread stone stir evenly and dry it is not aqueous to surface, then with 500~1000rpm revolving speed pulverization process 30~40 minutes, finally Dry 30~50 minutes obtained water-retaining agent at 100~120 DEG C.
The primary raw material of water-retaining agent is palygorskite modified in the present invention, and palygorskite is a kind of laminar silicic acid salt mine Object is a kind of clay mineral, itself have good absorbing and holding water property, in order to enhance palygorskite water-retaining property and can The use for adapting to construction environment in the present invention, processing is modified to it.The modification of palygorskite mainly in two steps, the first step It is that interlamellar spacing expands the stage, second step is the grafting of long-chain organic matter;The first step, which uses, mixes palygorskite and potassium acetate solution And the method for ball milling carries out, palygorskite interlayer has interlayer ion abundant, these interlayer ions activity with higher, by second After sour potassium and palygorskite mixing and ball milling, palygorskite can be become smaller particle and can be activated its layer by Mechanical Crushing Between ion activity, during this, potassium acetate also can partially enter the interlayer of palygorskite, and the standing after ball milling is to make More potassium acetate replacement palygorskite interlayers have the ion of high activity, even if also more potassium acetates enter the interlayer of palygorskite And be stabilized, high-temperature process after standing, the potassium acetate of palygorskite interlayer is removed, and then complete the expansion of palygorskite interlamellar spacing Greatly, the grafting for the long-chain organic matter of next step is got ready;The grafting of second step long-chain organic matter, antimicrobial component are selected double Cetyl dimethyl ammonium bromide, the long-chain with two 16 carbon, can form on palygorskite surface after grafting and be easy to connect The cage structure enhancing water-retaining property of Na Shui, the activation palygorskite formed by the first step and dihexadecyldimethylammonium bromide, Coupling agent, water mixing and ball milling carry out graft modification, and dihexadecyldimethylammonium bromide is grafted to through first using mechanical force The interlayer of step treated palygorskite, the grafting of the dihexadecyldimethylammonium bromide of double backbones can assign palygorskite Better water-retaining property makes it possible to obtain better Water-saving effect at lower cost.Above-mentioned two steps intercalation processing all uses machine The grafting of tool power, this quadrat method is easy, can quickly produce, and the effect of two-step grafting processing is preferable.In addition, double hexadecyl Although the grafting of ditallowdimethyl ammonium bromide can form cage structure, more dihexadecyldimethylammonium bromide carry out grafting can To form more cage structures, dihexadecyldimethylammonium bromide but more, which carries out being grafted on palygorskite surface, to be formed Excessive cage structure will affect the water retention property that palygorskite itself has instead, it is therefore desirable to by di-cetyl dimethyl bromine Change the control of ammonium grafting amount in reasonable range.
Therefore, the invention has the following advantages: solve in the prior art mortar after being caused after repairing pipeline wall chase Continuous fine fitment surface layer hollowing cracks the problem of forming ruined phase, and the finishing pipeline wall chase repairing in the present invention is repaired with crack resist at mortar There is certain repairing adhesion strength afterwards, aquation, the small hydration time of condensation process shrinkage ratio are short, realize wall, wall chase repairing not The characteristics of cracking.
Specific embodiment
Further description of the technical solution of the present invention With reference to embodiment.
Obviously, the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.Based on this Embodiment in invention, all other reality obtained by those of ordinary skill in the art without making creative efforts Example is applied, shall fall within the protection scope of the present invention.
In the present invention, if not refering in particular to, all equipment and raw material is commercially available or the industry is common, Method in following embodiments is unless otherwise instructed conventional method in that art.
Embodiment 1
A kind of finishing pipeline wall chase repairing is made with crack resist at mortar by the raw material of following parts by weight: 1.0 parts by weight of portland cement, 0.225 parts by weight of desulfurization gypsum powder, middle 4.2 parts by weight of sand, 1.0 parts by weight of water, 0.18 weight of lignin fibre of 10~20mm long Part is measured, the additive of following weight percent, water-retaining agent 0.16wt%, polyacrylic resin rubber powder are additionally added 0.16wt%;Wherein, the partial size of middle sand is 0.25~0.40mm, median particle diameter D50For 0.30mm, fineness modulus is 2.7~2.3, Water-retaining agent uses commercially available copolymerized macromolecule water-retaining agent.
Embodiment 2
A kind of finishing pipeline wall chase repairing crack resist at mortar, is made: 0.9 parts by weight of portland cement, desulfurization stone by following raw material 0.2 parts by weight of cream powder, middle 5.6 parts by weight of sand, 0.8 parts by weight of water, 0.16 parts by weight of lignin fibre of 10~20mm, additionally Add the additive of following weight percent, water-retaining agent 0.14wt%, polyvinyl alcohol resin rubber powder 0.14wt%;Wherein, middle sand Partial size be 0.25mm, median particle diameter D50For 0.30mm, fineness modulus 2.7.
Furthermore the water-retaining agent used is made by following methods, by palygorskite crush then with 1 times of palygorskite weight The mixing of 1.5mol/L potassium acetate solution was then allowed to stand 12 hours obtained slopes of ageing with revolving speed ball-milling treatment 2 hours of 1400rpm Activation palygorskites are made by the drying of palygorskite mixing slurry and at 450 DEG C for thread stone mixing slurry, then will activation palygorskite and its weight 0.2 times of dihexadecyldimethylammonium bromide, the silane coupling agent of 0.07 times of its weight, 0.9 times of its weight water mixing simultaneously Modified paligorskite is made after dry, then by 0.05 times of palygorskite weight of polyethylene in ball milling 1 hour under 2000rpm revolving speed Alcohol is dissolved in the water, be added modified paligorskite stir evenly and dry it is not aqueous to surface, then with 500rpm revolving speed crushing at Reason 30 minutes finally dries 30 minutes obtained water-retaining agent at 100 DEG C.
Embodiment 3
A kind of finishing pipeline wall chase repairing crack resist at mortar, is made: 1.5 parts by weight of portland cement, desulfurization stone by following raw material 0.6 parts by weight of cream powder, middle 6.4 parts by weight of sand, 1.2 parts by weight of water, 0.24 parts by weight of polypropylene fibre of 10~20mm, additionally Add the additive of following weight percent, water-retaining agent 0.20wt%, polyacrylic resin rubber powder 0.20wt%;Wherein, middle sand Partial size be 0.50mm, median particle diameter D50For 0.35mm, fineness modulus 2.3.
Furthermore the water-retaining agent used is made by following methods, by palygorskite crush then with 2.0 times of palygorskite weight The mixing of 1.5mol/L potassium acetate solution was then allowed to stand ageing 24 hours and is made with revolving speed ball-milling treatment 2.5 hours of 1900rpm Palygorskite mixing slurry, activation palygorskites are made by the drying of palygorskite mixing slurry and at 500 DEG C, and it is heavy with it then will to activate palygorskite The water mixing of the dihexadecyldimethylammonium bromide of 0.4 times of amount, the silane coupling agent of 0.08 times of its weight, 1.3 times of its weight And ball milling 1.5 hours under 3000rpm revolving speed, modified paligorskite is made after dry, it is then poly- by 0.07 times of palygorskite weight Vinyl alcohol is dissolved in the water, be added modified paligorskite stir evenly and dry it is not aqueous to surface, then with 1000rpm revolving speed powder Broken processing 40 minutes, finally dries 50 minutes obtained water-retaining agent at 120 DEG C.
Embodiment 4
A kind of finishing pipeline wall chase repairing crack resist at mortar, is made: 1.0 parts by weight of portland cement, desulfurization stone by following raw material 0.225 parts by weight of cream powder, middle 4.2 parts by weight of sand, 1.0 parts by weight of water, 0.20 parts by weight of polypropylene fibre of 10~20mm, furthermore Also add the additive of following weight percent, water-retaining agent 0.16wt%, polyvinyl alcohol resin rubber powder 0.16wt%;Wherein, in The partial size of sand is 0.30~0.40mm, median particle diameter D50For 0.33mm, fineness modulus 2.5.
Furthermore the water-retaining agent used is made by following methods, by palygorskite crush then with 1.8 times of palygorskite weight The mixing of 1.5mol/L potassium acetate solution was then allowed to stand ageing 18 hours and is made with revolving speed ball-milling treatment 2.3 hours of 1700rpm Palygorskite mixing slurry, activation palygorskites are made by the drying of palygorskite mixing slurry and at 470 DEG C, and it is heavy with it then will to activate palygorskite The water mixing of the dihexadecyldimethylammonium bromide of 0.3 times of amount, the silane coupling agent of 0.075 times of its weight, 1.1 times of its weight And ball milling 1.2 hours under 25000rpm revolving speed, modified paligorskite is made after dry, it is then poly- by 0.06 times of palygorskite weight Vinyl alcohol is dissolved in the water, be added modified paligorskite stir evenly and dry it is not aqueous to surface, then with 750rpm revolving speed powder Broken processing 35 minutes, finally dries 40 minutes obtained water-retaining agent at 110 DEG C.
Performance test:
Properties are tested after finishing pipeline wall chase repairing made from above-described embodiment 1~5 is formed sample preparation with crack resist at mortar, are surveyed Method for testing carries out according to the method that JGJ/T70-2009 " building mortar basic performance tests method standard " is recorded and tests aquation Time, test result is as follows shown in table:
It should be understood that those skilled in the art, it can be modified or changed according to the above description, and All these modifications and variations should all belong to the protection domain of appended claims of the present invention.

Claims (7)

1. a kind of finishing pipeline wall chase repairing crack resist at mortar, it is characterised in that be made by following raw material:
0.9~1.5 parts by weight of portland cement, 0.2~0.6 parts by weight of land plaster, middle 4.2~6.4 parts by weight of sand, water 0.8~ 1.2 parts by weight, 0.16~0.24 parts by weight of fiber additionally add the additive of following weight percent, and water-retaining agent 0.14~ 0.20wt%, 0.14~0.20wt% of rubber powder.
2. a kind of finishing pipeline wall chase repairing crack resist at mortar according to claim 1, it is characterised in that by following weight The raw material of part is made:
1.0 parts by weight of portland cement, 0.225 parts by weight of land plaster, middle 4.2 parts by weight of sand, 0.8~1.0 parts by weight of water, fiber 0.18 parts by weight additionally add the additive of following weight percent, water-retaining agent 0.16wt%, rubber powder 0.16wt%.
3. a kind of finishing pipeline wall chase repairing crack resist at mortar according to claim 1 or 2, it is characterised in that:
The land plaster is desulfurization gypsum powder.
4. a kind of finishing pipeline wall chase repairing crack resist at mortar according to claim 1 or 2, it is characterised in that:
The fiber is at least one of lignin fibre or polypropylene fibre of 10~20mm.
5. a kind of finishing pipeline wall chase repairing crack resist at mortar according to claim 1 or 2, it is characterised in that:
The rubber powder is one of polyvinyl alcohol resin rubber powder or polyacrylic resin rubber powder.
6. a kind of finishing pipeline wall chase repairing crack resist at mortar according to claim 1 or 2, it is characterised in that:
The partial size of the middle sand is 0.25~0.50mm.
7. a kind of finishing pipeline wall chase repairing crack resist at mortar according to claim 6, it is characterised in that:
The median particle diameter D of the middle sand50For 0.30~0.35mm, fineness modulus is 2.7~2.3.
CN201811376004.4A 2018-11-19 2018-11-19 Anti-cracking mortar for repairing wall groove of decoration pipeline Active CN110282940B (en)

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CN110282940B CN110282940B (en) 2021-08-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100807761B1 (en) * 2007-04-27 2008-02-28 주식회사 콘크리닉 Cement composition using alpha type calcined gypsum and constructing method thereof
CN101565588A (en) * 2009-06-01 2009-10-28 四川大学 Organic attapulgite water-borne polyurethane nano composite leather coating agent and preparation method thereof
CN102173707A (en) * 2011-01-31 2011-09-07 上海市建筑科学研究院(集团)有限公司 Desulfurization alpha semi-hydrated gypsum self-leveling mortar
CN102503326A (en) * 2011-10-19 2012-06-20 上海大学 Environmentally-friendly concrete interface treating agent
WO2017074288A1 (en) * 2015-10-28 2017-05-04 Inkaya Yonca A construction building material mixture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100807761B1 (en) * 2007-04-27 2008-02-28 주식회사 콘크리닉 Cement composition using alpha type calcined gypsum and constructing method thereof
CN101565588A (en) * 2009-06-01 2009-10-28 四川大学 Organic attapulgite water-borne polyurethane nano composite leather coating agent and preparation method thereof
CN102173707A (en) * 2011-01-31 2011-09-07 上海市建筑科学研究院(集团)有限公司 Desulfurization alpha semi-hydrated gypsum self-leveling mortar
CN102503326A (en) * 2011-10-19 2012-06-20 上海大学 Environmentally-friendly concrete interface treating agent
WO2017074288A1 (en) * 2015-10-28 2017-05-04 Inkaya Yonca A construction building material mixture

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