CN104032972A - Method for repairing cracks of thermal mortar of outer wall - Google Patents
Method for repairing cracks of thermal mortar of outer wall Download PDFInfo
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- CN104032972A CN104032972A CN201310274050.4A CN201310274050A CN104032972A CN 104032972 A CN104032972 A CN 104032972A CN 201310274050 A CN201310274050 A CN 201310274050A CN 104032972 A CN104032972 A CN 104032972A
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Abstract
The invention discloses a method for repairing cracks of thermal mortar of an outer wall; the method is only applicable to repairing the cracks, caused by temperature stress, of the thermal mortar layer of the outer wall which has not been faced by coating, and does not includes repairing of cracks caused by empty drums. The method comprises four steps of: treatment of cracks, preparation of crack repairing agent, repairing of cracks and surface treatment. The method has the characteristics and advantages that: the cracks are repaired by the prepared crack repairing agent, water resistance of the thermal mortar system of the outer wall is improved, and influence on surrounding thermal mortar is small. Material after repairing is high in bonding strength, good in adhesive force to base courses, good in toughness and unlikely to crack; and the cracks can be automatically repaired according to changes of the cracks caused by temperature stress and effectively controlled and covered. Construction is convenient and rapid, rework duration is effective reduced, and economic practicability is high.
Description
Technical field
the present invention relates to the restorative procedure in a kind of heat preservation mortar for outer wall crack, belong to external wall recovery technique field.
Background technology
skin thermal insulation mortar due in work progress for meeting the planeness requirement of insulation layer, make partial insulation mortar thickness excessive, thereby increased that thermal insulation mortar dehydration is shunk and warm and humid variation and the stress that produces, thereby cause cracking.In addition, because anticracking grout is too thin or too thick meeting strengthens the possibility that surface layer shrinks.In the time that heat preservation mortar for outer wall occurs that crack phenomenon need to be repaired, be that the position that occurs crack is rejected with other regions and separated at present, repair again afterwards.Current restorative procedure length consuming time, consumptive material is many, affects the duration, uneconomical, and fracture quantity is many, and the engineering that region area is large is inapplicable.Therefore, the reparation in heat preservation mortar for outer wall crack has become an industry technical problem urgently to be resolved hurrily.
Summary of the invention
the object of the invention is to, the restorative procedure in a kind of heat preservation mortar for outer wall crack is provided, with low cost, the method for high efficiency solves the reparation in coating ornamental surface type heat preservation mortar for outer wall of buildings crack, to overcome the deficiencies in the prior art.
technical scheme of the present invention:
the restorative procedure in heat preservation mortar for outer wall crack, the method is repaired according to the following steps:
step 1: crack treatment: crack treatment is become to " V " font notch with instrument, and utilize wire brushing crack unconsolidated formation and dust around, dust is blown clean with compressed air, and with elastic emulsion brushing crack and around;
step 2: preparation crack repairing agent: meter by weight, its proportioning is: 35～45 parts of elastic emulsions, 55～40 parts of cement, 10～15 parts of fillers, the canescence mixture obtaining after mixer stirs 1～3 minute at normal temperatures and pressures;
step 3: crack repairing: adopt plastering plate fracture to repair, need firmly compress while plastering, healant is filled up to crack place;
step 4: process on top layer: after crack repairing agent is fixed, by the sanding of crack repairing mend, then carry out top layer processing with macromolecule emulsion elastic bottom coating with fine sandpaper.
in the restorative procedure in aforementioned heat preservation mortar for outer wall crack, the heat preservation mortar for outer wall layer that described method is only applicable to not yet carry out coating ornamental surface, because of the crack reparation that thermal stresses causes, does not comprise the crack reparation causing because of hollowing.
in the restorative procedure in aforementioned heat preservation mortar for outer wall crack, " V " font width of rebate in described step 1 is not less than 3mm, and the degree of depth is not less than 5mm.
in the restorative procedure in aforementioned heat preservation mortar for outer wall crack, the elastic emulsion in described step 1 and step 2 is the self-cross linking type emulsion that extraordinary monomer and esters of acrylic acid and cross-linking monomer copolymerization form, and solid content is 53%, and viscosity is 500～3000mpas.
in the restorative procedure in aforementioned heat preservation mortar for outer wall crack, in described step 2, cement is PC32.5 Composite portland cement.
compared with prior art, the restorative procedure of heat preservation mortar for outer wall location of cracks is to cut off location of cracks again to whitewash thermal insulation mortar at present, after possessing intensity, thermal insulation mortar carries out again the technique of anticracking grout layer construction, the restorative procedure in heat preservation mortar for outer wall of the present invention crack has following feature and advantage: utilize the crack repairing agent fracture of preparation to repair, the water proofing property that has improved heat preservation mortar for outer wall system, the impact of the thermal insulation mortar on periphery is less.Material binding intensity after repairing is high, has good adhesive power with basic unit, and good toughness is not easy to crack, can change and automatically repair crack with the crack of causing because of thermal stresses, effectively controls and cover crack.Convenient and quick construction, effectively reduces and does over again the duration, and economic and practical is strong.
Detailed description of the invention
below in conjunction with example, the present invention is described in further detail, but not as any limitation of the invention.
the restorative procedure in heat preservation mortar for outer wall crack, the heat preservation mortar for outer wall layer that the method is only applicable to not yet carry out coating ornamental surface, because of the crack reparation that thermal stresses causes, does not comprise the crack reparation causing because of hollowing.The method is repaired according to the following steps:
step 1: crack treatment: by crack treatment one-tenth " V " font notch, " V " font width of rebate is not less than 3mm with instrument, and the degree of depth is not less than 5mm.And utilize wire brushing crack unconsolidated formation and dust around, dust is blown clean with compressed air, and with elastic emulsion brushing crack and around; Elastic emulsion is the self-cross linking type emulsion that extraordinary monomer and esters of acrylic acid and cross-linking monomer copolymerization form, and solid content is 53%, and viscosity is 500～3000mpas;
step 2: preparation crack repairing agent: meter by weight, its proportioning is: 35～45 parts of elastic emulsions, 55～40 parts of cement, 10～15 parts of fillers, the canescence mixture obtaining after mixer stirs 1～3 minute at normal temperatures and pressures; Cement is PC32.5 Composite portland cement;
step 3: crack repairing: adopt plastering plate fracture to repair, need firmly compress while plastering, healant is filled up to crack place;
step 4: process on top layer: after crack repairing agent is fixed, by the sanding of crack repairing mend, then carry out top layer processing with macromolecule emulsion elastic bottom coating with fine sandpaper.
Embodiment
the restorative procedure in a kind of heat preservation mortar for outer wall crack, construction according to the following steps: first carry out crack treatment: crack treatment is become to " V " font notch with instrument, " V " font width of rebate should be not less than 3mm, the degree of depth should be not less than 5mm, can make like this healant fully infiltrate in crack, the action space that ensures healant, makes healant better control spreading of crack.In the time carrying out crack treatment, can adopt the instruments such as steel brush, clean crack, require crack without loose, the floating ash of nothing, free of frost, crack substrate surface is firm, dust is blown clean with compressed air, need after clean clean with elastic emulsion brushing crack and around, play the effect of dead-end fracture, water leakage.Described elastic emulsion is the self-cross linking type emulsion that extraordinary monomer and esters of acrylic acid and cross-linking monomer copolymerization form, and solid content is 53%, and viscosity is 500～3000mpas.Then prepare crack repairing agent: crack repairing agent is counted by weight, its proportioning is: 40 parts of elastic emulsions, and 50 parts of cement, 13 parts of fillers, are bi-component before crack repairing agent preparation.When preparation, pulvis is poured in elastic emulsion into the canescence mixture obtaining at normal temperatures and pressures after mixer stirs 3 minutes; And in mixture, lose graininess pulvis, can use.Described cement is PC32.5 Composite portland cement.The crack repairing agent plastering plate preparing is firmly compressed and is put in crack, healant is filled up to crack.When joint filling, can directly make healant pointing enter crack and both sides, crack with plastering plate raking both sides, make the healant in seam more closely knit, without bubble.After crack repairing agent surface is fixed, by the sanding of crack repairing mend, finally according to the designing requirement of related specifications meter, carry out top layer processing with macromolecule emulsion elastic bottom coating with fine sandpaper.
Claims (5)
1. the restorative procedure in heat preservation mortar for outer wall crack, is characterized in that, the method is repaired according to the following steps:
Step 1: crack treatment: crack treatment is become to " V " font notch with instrument, and utilize wire brushing crack unconsolidated formation and dust around, dust is blown clean with compressed air, and with elastic emulsion brushing crack and around;
Step 2: preparation crack repairing agent: meter by weight, its proportioning is: 35～45 parts of elastic emulsions, 55～40 parts of cement, 10～15 parts of fillers, the canescence mixture obtaining after mixer stirs 1～3 minute at normal temperatures and pressures;
Step 3: crack repairing: adopt plastering plate fracture to repair, need firmly compress while plastering, healant is filled up to crack place;
Step 4: process on top layer: after crack repairing agent is fixed, by the sanding of crack repairing mend, then carry out top layer processing with macromolecule emulsion elastic bottom coating with fine sandpaper.
2. the restorative procedure in heat preservation mortar for outer wall crack according to claim 1, is characterized in that: described method is only applicable to not yet to carry out the heat preservation mortar for outer wall layer of coating ornamental surface and repairs because of the crack that thermal stresses causes, and does not comprise that the crack of causing because of hollowing repairs.
3. the restorative procedure in heat preservation mortar for outer wall crack according to claim 1, is characterized in that: " V " font width of rebate in described step 1 is not less than 3mm, and the degree of depth is not less than 5mm.
4. the restorative procedure in heat preservation mortar for outer wall crack according to claim 1, it is characterized in that: the elastic emulsion in described step 1 and step 2 is the self-cross linking type emulsion that extraordinary monomer and esters of acrylic acid and cross-linking monomer copolymerization form, solid content is 53%, and viscosity is 500～3000mpas.
5. the restorative procedure in heat preservation mortar for outer wall crack according to claim 1, is characterized in that: in described step 2, cement is PC32.5 Composite portland cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310274050.4A CN104032972A (en) | 2013-07-02 | 2013-07-02 | Method for repairing cracks of thermal mortar of outer wall |
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| CN201310274050.4A CN104032972A (en) | 2013-07-02 | 2013-07-02 | Method for repairing cracks of thermal mortar of outer wall |
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| CN104032972A true CN104032972A (en) | 2014-09-10 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760597A (en) * | 2016-12-12 | 2017-05-31 | 魏连富 | A kind of external wall seepage repair novel construction skill |
| CN106812220A (en) * | 2017-03-14 | 2017-06-09 | 中国十七冶集团有限公司 | External wall insulation crack reparation construction method |
| CN108049652A (en) * | 2018-01-02 | 2018-05-18 | 江苏尼高科技有限公司 | Exterior wall filleting patching |
| CN108756289A (en) * | 2018-06-15 | 2018-11-06 | 中国二十二冶集团有限公司 | The method for repairing and mending in wall surface putty crack and its special repairing paste |
| CN109441133A (en) * | 2018-10-23 | 2019-03-08 | 上海宝冶集团有限公司 | Composite light batten wall crack restorative procedure |
| CN109653523A (en) * | 2017-10-12 | 2019-04-19 | 蒲连影 | A kind of civil buildings exterior wall crack repairing method |
| CN110439313A (en) * | 2019-08-14 | 2019-11-12 | 上海忠辰建设工程有限公司 | A kind of heat preserving exterior wall repairerment technique |
-
2013
- 2013-07-02 CN CN201310274050.4A patent/CN104032972A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760597A (en) * | 2016-12-12 | 2017-05-31 | 魏连富 | A kind of external wall seepage repair novel construction skill |
| CN106812220A (en) * | 2017-03-14 | 2017-06-09 | 中国十七冶集团有限公司 | External wall insulation crack reparation construction method |
| CN109653523A (en) * | 2017-10-12 | 2019-04-19 | 蒲连影 | A kind of civil buildings exterior wall crack repairing method |
| CN108049652A (en) * | 2018-01-02 | 2018-05-18 | 江苏尼高科技有限公司 | Exterior wall filleting patching |
| CN108756289A (en) * | 2018-06-15 | 2018-11-06 | 中国二十二冶集团有限公司 | The method for repairing and mending in wall surface putty crack and its special repairing paste |
| CN109441133A (en) * | 2018-10-23 | 2019-03-08 | 上海宝冶集团有限公司 | Composite light batten wall crack restorative procedure |
| CN110439313A (en) * | 2019-08-14 | 2019-11-12 | 上海忠辰建设工程有限公司 | A kind of heat preserving exterior wall repairerment technique |
| CN110439313B (en) * | 2019-08-14 | 2021-08-03 | 上海忠辰建设工程有限公司 | Thermal insulation exterior wall repairing process |
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Application publication date: 20140910 |