CN102674766A - Mortar suitable for base-free metal net plastering and construction method for mortar - Google Patents
Mortar suitable for base-free metal net plastering and construction method for mortar Download PDFInfo
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- CN102674766A CN102674766A CN2011103615095A CN201110361509A CN102674766A CN 102674766 A CN102674766 A CN 102674766A CN 2011103615095 A CN2011103615095 A CN 2011103615095A CN 201110361509 A CN201110361509 A CN 201110361509A CN 102674766 A CN102674766 A CN 102674766A
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Abstract
The invention relates to mortar suitable for base-free metal net plastering. The mortar comprises the following formula components in weight percentage: 24-29 percent of PO42.5 cement, 67-73 percent of sand, 1.2-2.9 percent of dispersible polymer powder, 0.08-0.16 percent of cellulose ether and 0.015-0.06 percent of polypropylene (PP) fiber. The invention also relates to a construction method for the mortar suitable for base-free metal net plaster plastering. The construction method comprises the following steps of: fixing a metal net to the outer sides of keels, and continuously painting two layers of mortar on the surface of the metal net in one time, wherein the thickness of the mortar is 10-12.5mm. The surface of the metal net is plastered by adopting the polymer-modified cement mortar, and thus, not only can single-layer continuous plastering construction be performed but also layered multiple construction can be performed. The metal net plastering method has the advantages that the construction is convenient and the application is wide; the common phenomenon that an outer wall is cracked due to external thermal insulation plastering can be obviously improved; the shock resistance of the outer surface of the outer wall is obviously improved; and the absorption coefficient of the mortar is greatly reduced. Moreover, the mortar has very high cost performance.
Description
Technical field
The invention belongs to material of construction and the realm of building construction, relate to wire netting external wall plastering polymer-modified cement mortar for building, particularly a kind of mortar and constructional method thereof that is applicable to that no base metal net is plastered.
Background technology
Plastering is a kind of long-lived material of construction.Traditional external wall plastering is to scrape the sand-cement slurry of smearing certain proportioning at substrate material surfaces such as brick walls, and thickness is different according to substrate, is generally 20～35mm.But this mode of plastering can not be applicable to all kinds of novel wall materials.In recent years, common external wall outer insulation is to pass through sticker adhesive glass fibrous mesh cloth on the surface of insulating foam material, scrapes the thin layer polymers anti-cracking mortar of smearing certain proportioning again, the about 5～8mm of depth of plastering.But this polymer content height of plastering, cost is higher; And it is bigger to receive execution conditions influences, still exists problems such as easy of crack, Wall brick poor durability, degree of safety are not high.
Mesh plaster is a kind of both economical building exterior finish common in timber structure and steel building.The exterior wall finish system that the combined wall of steel house requires that a kind of economy that can satisfy each item code requirement of design is high, flexibility is strong, has good workability; Metal net plaster is that a kind of ideal that can meet the demands is selected, and also is a kind of exterior finish form commonly used abroad.Traditional mesh plaster requires the sheet material substrate that has off the net, and three constructions of branch of plastering are called three and are coated with plaster (Three coat stucco), the about 24mm of the nominal total thickness of plastering.In recent years, north America region a kind of novel what is called occurred and singly has been coated with (the One coat stucco) technology of plastering, and the about 10mm of the nominal total thickness of plastering must use the motar of patent but specify, and require the wire netting back side that the sheet material substrate is arranged.
The steel construction wall material category is extensive, relates to cement base plate, metal-based sheet material, organic foam material etc., also might adopt the light steel or the rough ground of a determining deviation.Therefore the mesh plaster form that needs a kind of can suit above-mentioned different base material of exploitation especially will be developed and a kind ofly need not base material, can directly between keel, be opened a nail metal and plaster as the construction technology of exterior finish system and supporting with it mortar.
In view of this, seek a kind of mortar and constructional method thereof that is applicable to that no base metal net is plastered and become pursuing one's goal of these those skilled in the art.
Summary of the invention
Task of the present invention provides a kind of mortar and constructional method thereof that is applicable to that no base metal net is plastered; It has overcome the difficulty of above-mentioned prior art; Can be applied to the mesh plaster of no any base material between the keel; Certainly the external wall system in the time of also being widely used in having various types of materials such as cement base plate, metal-based sheet material, organic foam as base material is for all kinds of assembled walling systems provide a kind of economic and practical exterior finish form.
Technical solution of the present invention is following:
A kind of mortar that is applicable to that no base metal net is plastered, the recipe ingredient content of said mortar is by weight percentage: PO42.5 cement 24%～29%, sand 67%～73%, dispersibility latex powder 1.2%～2.9%, ether of cellulose 0.08%～0.16%, PP fiber 0.015%～0.06%.
The consistency range of said mortar water consumption is 70～100mm.
A kind of constructional method that is applicable to the mortar that no base metal net is plastered may further comprise the steps:
(1) wire netting is fixed in the keel outside;
(2) the disposable continuous render and set mortar on the wire netting surface, thickness is 10～12.5mm.
A kind of constructional method that is applicable to the mortar that no base metal net is plastered may further comprise the steps:
(1) wire netting is fixed in substrate surface;
(2) be divided into two to three layers on the wire netting surface and accomplish plastering construction, every layer is 5～7mm, and total thickness is 15～25mm.
In the said step (2), be divided into three layers on the wire netting surface and accomplish plastering construction, the scratch coat mortar adopts mortar, and middle layer and finish coat mortar all adopt conventional cement mortar.
The construction of said bottom mortar 12～18 hours at interval.
The present invention makes it compared with prior art owing to adopted above technical scheme, adopts polymer-modified cement mortar of the present invention at the wire netting surface plastering, both can the continuous plastering construction of individual layer, also can layering repeatedly construct.During the individual layer construction, can reduce depth of plastering, under the condition that does not influence use properties, reduce the deadweight of buildings greatly; During the multilayer construction, the bottom mortar adopts the polymer-modified cement mortar that the present invention relates to, and middle layer and surface layer mortar can adopt conventional cement mortar, to obtain best economy.
Adopt metal net plaster method of the present invention, easy construction, widely applicable, can obviously improve the cracking phenomena that common external wall outer insulation is plastered and occurred; Significantly improved exterior wall outside surface shock resistance; Greatly reduce the absorption coerfficient of mortar; And has the high cost performance of ratio.The external wall plastering surface that employing the present invention relates to can swabbing or Wall brick as decoration of exterior wall.
Embodiment
Below in conjunction with embodiment the present invention is elaborated.
The invention provides a kind of mortar that is applicable to that no base metal net is plastered, the recipe ingredient content of said mortar is by weight percentage: PO42.5 cement 24%～29%, sand 67%～73%, dispersibility latex powder 1.2%～2.9%, ether of cellulose 0.08%～0.16%, PP fiber 0.015%～0.06%.
The consistency range of said mortar water consumption is 70～100mm.
By a kind of prescription that is applicable to the mortar that no base metal net is plastered of the present invention, the component concentration of first embodiment is by weight percentage: PO42.5 cement 24%, sand 73%, dispersibility latex powder 2.86%, ether of cellulose 0.09%, PP fiber 0.05%.
By a kind of prescription that is applicable to the mortar that no base metal net is plastered of the present invention, the component concentration of second embodiment is by weight percentage: PO42.5 cement 28%, sand 70%, dispersibility latex powder 1.8%, ether of cellulose 0.16%, PP fiber 0.04%.
By a kind of prescription that is applicable to the mortar that no base metal net is plastered of the present invention, the component concentration of the 3rd embodiment is by weight percentage: PO42.5 cement 29%, sand 68%, dispersibility latex powder 2.78%, ether of cellulose 0.16%, PP fiber 0.06%.
The present invention also provides a kind of constructional method that is applicable to the mortar that no base metal net is plastered, and may further comprise the steps:
(1) wire netting is fixed in the keel outside.
(2) the disposable continuous render and set mortar on the wire netting surface, thickness is 10～12.5mm.
The present invention also provides a kind of constructional method that is applicable to the mortar that no base metal net is plastered, and may further comprise the steps:
(1) wire netting is fixed in substrate surface.
(2) be divided into two to three layers on the wire netting surface and accomplish plastering construction, every layer is 5～7mm, and total thickness is 15～25mm.
In the said step (2), be divided into three layers on the wire netting surface and accomplish plastering construction, the scratch coat mortar adopts mortar, and middle layer and finish coat mortar all adopt conventional cement mortar.
The construction of said bottom mortar 12～18 hours at interval.
The present invention develops a kind of polymer-modified cement mortar, and the no base metal net that can be used between the determining deviation keel is plastered, simultaneously also can be adaptable across materials for walls such as cement base plate, metal-based sheet material, organic foam insulation surface.No base material wherein directly wants big in the difficulty of wire netting surface plastering.Key problem in technology is: the polymer-modified cement mortar of configuration definite composition, can realize reliable bonding with wire netting or with all kinds of body of wall base materials, and require to have higher bonding strength between this mortar and the wire netting; Polymer-modified cement mortar can directly be scraped the wire netting surface of smearing between keel, is difficult for running off, but and have application property preferably, require this mortar to have the denseness of certain limit; In addition, as a kind of exterior finish system, require to have good shock resistance after this mortar moulding, anti-cracking performance, lower absorption coerfficient and freeze-thawing resistant destructiveness.
The present invention realizes that the approach of above-mentioned performance is following:
Select the wire netting of certain specification, referring to ASTM C1063-03.
Through adding the cohesive strength of dispersibility latex powder raising mortar and wire netting and substrate sheet material, improve the shock resistance of mortar, reduce the mortar water-intake rate, improve freezing and thawing performance.
Through adding the water-keeping thickening performance of ether of cellulose raising mortar, reduce the absorption coerfficient of mortar.
Through adding the dry resistance to cleavage of initial stage that the PP fiber improves mortar.
The present invention obtains the quality composition proposal of the highest polymer modification mortar of lastness price ratio: PO42.5 cement 24%～29%, sand 67%～73%, dispersibility latex powder 1.2%～2.9%, ether of cellulose 0.08%～0.16%, PP fiber 0.015%～0.06% through many group simultaneous tests.Water consumption is confirmed according to the slurry consistency scope being controlled in 70～100mm scope.
Aspect construction technology, consider that reducing the buildings deadweight helps its anti-seismic performance, reducing coat of plaster thickness all is favourable to safety of structure with reducing the construction working amount.Above the renderset construction continuously of said polymer-modified cement mortar: the keel outside of wire netting being fixed in a determining deviation; The polymer-modified cement mortar that disposable continuous render and set the present invention relates on the wire netting surface then, thickness is at 10～12.5mm.
As required, said polymer-modified cement mortar also can repeatedly be constructed in layering.Wire netting is fixed in the different substrate materials surface, divides 2～3 layers to accomplish plastering construction, every layer of 5～7mm, total thickness 15～25mm on the wire netting surface then.The scratch coat mortar adopts the polymer-modified cement mortar that the present invention relates to, and middle layer and finish coat mortar all adopt conventional cement mortar, and with the construction interval of bottom mortar 12～18 hours.
In sum, adopt metal net plaster method of the present invention, easy construction, widely applicable, can obviously improve the cracking phenomena that common external wall outer insulation is plastered and occurred; Significantly improved exterior wall outside surface shock resistance; Greatly reduce the absorption coerfficient of mortar; And have than high cost performance, better anti-cracking performance and shock resistance.
The present invention can be applied to the mesh plaster of no any base material between the keel; External wall system in the time of also being widely used in having various types of materials such as cement base plate, metal-based sheet material, organic foam as base material is for all kinds of assembled walling systems provide a kind of economic and practical exterior finish form.The external wall plastering surface that employing the present invention relates to can swabbing or Wall brick as decoration of exterior wall.
Certainly; Those skilled in the art in the present technique field will be appreciated that; The foregoing description only is to be used for explaining the present invention; And be not with opposing qualification of the present invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention the variation of the foregoing description, modification etc.
Claims (6)
1. mortar that is applicable to that no base metal net is plastered, it is characterized in that: the recipe ingredient content of said mortar is by weight percentage: PO42.5 cement 24%～29%, sand 67%～73%, dispersibility latex powder 1.2%～2.9%, ether of cellulose 0.08%～0.16%, PP fiber 0.015%～0.06%.
2. the mortar that is applicable to that no base metal net is plastered as claimed in claim 1 is characterized in that: the consistency range of said mortar water consumption is 70～100mm.
3. a constructional method that is applicable to the mortar that no base metal net is plastered is characterized in that, may further comprise the steps:
(1) wire netting is fixed in the keel outside;
(2) the disposable continuous render and set mortar on the wire netting surface, thickness is 10～12.5mm.
4. a constructional method that is applicable to the mortar that no base metal net is plastered is characterized in that, may further comprise the steps:
(1) wire netting is fixed in substrate surface;
(2) be divided into two to three layers on the wire netting surface and accomplish plastering construction, every layer is 5～7mm, and total thickness is 15～25mm.
5. the constructional method that is applicable to the mortar that no base metal net is plastered as claimed in claim 4; It is characterized in that: in the said step (2); Be divided into three layers on the wire netting surface and accomplish plastering construction; The scratch coat mortar adopts mortar, and middle layer and finish coat mortar all adopt conventional cement mortar.
6. the constructional method that is applicable to the mortar that no base metal net is plastered as claimed in claim 5 is characterized in that: the construction of said bottom mortar 12～18 hours at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103615095A CN102674766A (en) | 2011-11-16 | 2011-11-16 | Mortar suitable for base-free metal net plastering and construction method for mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103615095A CN102674766A (en) | 2011-11-16 | 2011-11-16 | Mortar suitable for base-free metal net plastering and construction method for mortar |
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| CN102674766A true CN102674766A (en) | 2012-09-19 |
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| CN2011103615095A Pending CN102674766A (en) | 2011-11-16 | 2011-11-16 | Mortar suitable for base-free metal net plastering and construction method for mortar |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321307A (en) * | 2013-06-26 | 2013-09-25 | 熊吉东 | Thermal-insulation construction method and base mortar for inorganic thermal-insulation mortar external wall |
| CN103723975A (en) * | 2013-12-31 | 2014-04-16 | 宝钢建筑系统集成有限公司 | Rapid-hardening steel slag mortar capable of being constructed by spraying |
| CN105110727A (en) * | 2015-07-28 | 2015-12-02 | 惠州市斐尔创塑胶有限公司 | Covering-type decorative concrete and construction method thereof |
| CN110981332A (en) * | 2019-11-19 | 2020-04-10 | 浙江鼎峰科技股份有限公司 | Dry-mixed plastering mortar for building solid waste recycled aggregate and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126255A (en) * | 2007-08-16 | 2008-02-20 | 谌丽莉 | Metal mesh multifunctional wall and construction method for building thereof |
| CN101974878A (en) * | 2010-09-29 | 2011-02-16 | 北京工业大学 | Pavior brick resisting corrosion of snow melting agent |
-
2011
- 2011-11-16 CN CN2011103615095A patent/CN102674766A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126255A (en) * | 2007-08-16 | 2008-02-20 | 谌丽莉 | Metal mesh multifunctional wall and construction method for building thereof |
| CN101974878A (en) * | 2010-09-29 | 2011-02-16 | 北京工业大学 | Pavior brick resisting corrosion of snow melting agent |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321307A (en) * | 2013-06-26 | 2013-09-25 | 熊吉东 | Thermal-insulation construction method and base mortar for inorganic thermal-insulation mortar external wall |
| CN103723975A (en) * | 2013-12-31 | 2014-04-16 | 宝钢建筑系统集成有限公司 | Rapid-hardening steel slag mortar capable of being constructed by spraying |
| CN105110727A (en) * | 2015-07-28 | 2015-12-02 | 惠州市斐尔创塑胶有限公司 | Covering-type decorative concrete and construction method thereof |
| CN110981332A (en) * | 2019-11-19 | 2020-04-10 | 浙江鼎峰科技股份有限公司 | Dry-mixed plastering mortar for building solid waste recycled aggregate and preparation method thereof |
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Application publication date: 20120919 |