CN104926258A - Autoclaved aerated concrete plate repairing agent - Google Patents

Autoclaved aerated concrete plate repairing agent Download PDF

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Publication number
CN104926258A
CN104926258A CN201510359852.4A CN201510359852A CN104926258A CN 104926258 A CN104926258 A CN 104926258A CN 201510359852 A CN201510359852 A CN 201510359852A CN 104926258 A CN104926258 A CN 104926258A
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CN
China
Prior art keywords
aerated concrete
autoclaved aerated
healant
concrete slab
sand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510359852.4A
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Chinese (zh)
Inventor
许博
张雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG TIANYU WALL MATERIAL CO Ltd
Original Assignee
SHANDONG TIANYU WALL MATERIAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANDONG TIANYU WALL MATERIAL CO Ltd filed Critical SHANDONG TIANYU WALL MATERIAL CO Ltd
Priority to CN201510359852.4A priority Critical patent/CN104926258A/en
Publication of CN104926258A publication Critical patent/CN104926258A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses an autoclaved aerated concrete plate repairing agent and belongs to the technical field of building materials. The autoclaved aerated concrete plate repairing agent is composed of, by mass, 40-60% of coal ash, 10-30% of gypsum, 5-15% of cement, 10-30% of sand, 0.01-2.0% of fiber, 0.01-1.05 of water retaining agent and 0.01-1.5% of setting retarder. The coal ash is coal ash for silicate building products meeting JC/T, the gypsum is semi-hydrated gypsum, and the cement is universal silicate cement meeting GB. By the autoclaved aerated concrete plate repairing agent, the problem that an existing repairing agent and an autoclaved aerated concrete plate have chromatic aberration and are low in binding strength and long in setting time.

Description

A kind of autoclaved aerated concrete slab healant
Technical field
The present invention relates to a kind of healant, particularly a kind of autoclaved aerated concrete slab healant, belongs to building material technical field.
Background technology
Autoclaved aerated concrete slab is with cement, lime, flyash, aluminium powder etc. for main raw material, then according to structural requirement configuration different quantities through a kind of lightweight of antiseptic reinforced mesh, insulation, sound insulation, fp Green environmental-protection building material.Along with the domestic and international raising required building energy conservation, autoclaved aerated concrete slab has been widely used in external wall, internal partition wall and roofing etc.
In autoclaved aerated concrete slab production process, because autoclaved aerated concrete slab intensity is lower, in transport and construction process, easily occur that truncation falls pin, cut, surface disappearance etc., affect qualification rate and the utilization ratio of product, in addition, also need in construction process to fill up process to material breakage places such as pre-buried holes.At present, the special healant of autoclaved aerated concrete slab adopts cement, sand, admixture and adulterant usually, and because slurry composition and technique are different, healant and autoclaved aerated concrete slab exist aberration, bonding strength is low and time of coagulation is longer problem.
Summary of the invention
For the above-mentioned defect existed in prior art, the invention provides a kind of autoclaved aerated concrete slab healant, there is aberration, bonding strength is low and time of coagulation is long problem to solve healant and autoclaved aerated concrete slab.
The present invention is achieved by the following technical solution: a kind of autoclaved aerated concrete slab healant, comprise the component of following mass percent: flyash: 40%-60%, gypsum: 10%-30%, cement: 5%-15%, sand: 10%-30%, fiber: 0.01%-2.0%, water-holding agent: 0.01%-1.0%, retardant: 0.01%-1.5%, wherein, described flyash is the silicate building products flyash meeting JC/T, and described gypsum is semi-hydrated gypsum, and described cement is the general purpose portland cement meeting GB.
Described gypsum is one or more in the plaster of paris, desulfurated plaster, phosphogypsum, fluorgypsum.
Described sand is one or more in natural siliceous sand, dolomite sand, natural river sand.
The fineness of described sand is 60-120 order.
Described fiber is one or more in polypropylene fibre, trevira, wood fibre.
Described water-holding agent is one or more in methyl cellulose ether, Vltra tears, ethoxyl methyl cellulose ether.
The viscosity of described water-holding agent is at 50000-100000mPas.
Described retardant is one or more in citric acid, tartrate, phosphoric acid salt, ligninsulfonate.
The present invention is mainly used in taking flyash as the autoclaved aerated concrete slab of main raw material(s), preparation method of the present invention is through metering by flyash, cement, gypsum, sand, fiber, water-holding agent and retardant, put into mixing machine to mix, the dry mash of obtained steam-pressing aero-concrete healant, during use, in healant dry mash, add the water of the 20%-35% of dry mash quality, stir, get final product construction usage.
The invention has the beneficial effects as follows:
1, by adding flyash and cement, have the color that autoclaved aerated concrete slab is consistent after making healant aquation, Performance comparision mates; The potential chemical reactivity of flyash can improve healant later strength; Flyash belongs to trade waste, using flyash as base-material, can realize the comprehensive utilization of refuse, effectively cost-saving.
2, using gypsum and cement as gelling material, gypsum belongs to air hardening cementitious materials, and cement is hydraulic cementing materials, by used in combination for two kinds of gelling material, the time of coagulation of healant can be shortened on the one hand, the polishing time can be shortened, increase work efficiency, healant coefficient of softening can be improved on the other hand, improve the water tolerance of healant, plastering is easy to polishing, and product is fine and smooth, can improve the aesthetic property of product.
3, by adding retardant, can improve healant time of coagulation, extending healant can the engineering time.
Embodiment
Below by the embodiment of indefiniteness, the present invention is further illustrated.
Embodiment 1
Each component is according to following masses per-cent proportioning starting material: flyash 50%, gypsum 20%, cement 10%, sand 19%, fiber 0.3%, water-holding agent 0.3%, retardant 0.4%.As follows according to JGJ/T70-2009 " building mortar basic performance tests method standard " detected result:
Test item Performance index
Water consumption (%) 32
Delamination degree (mm) 18
Denseness (mm) 70
Water retention (%) 98
Ultimate compression strength (MPa) 8.5
Cohesive strength (MPa) 0.38
Dry shrinkage (mm/m) 0.82
Time of coagulation (h) 2.5
Beneficial effect: the healant in the present embodiment employs a large amount of flyash, both the comprehensive utilization of industrial solid castoff flyash had been achieved, effectively save cost, after making again healant aquation, there is the color consistent with autoclaved aerated concrete slab, Performance comparision mates, and the potential chemical reactivity of flyash also serves the effect improving healant later strength.
Embodiment 2
Each component is according to following masses per-cent proportioning starting material: flyash 60%, gypsum 10%, cement 15%, sand 14%, fiber 0.3%, water-holding agent 0.3%, retardant 0.4%.As follows according to JGJ/T70-2009 " building mortar basic performance tests method standard " detected result:
Test item Performance index
Water consumption (%) 35
Delamination degree (mm) 17
Denseness (mm) 72
Water retention (%) 99
Ultimate compression strength (MPa) 8.3
Cohesive strength (MPa) 0.36
Dry shrinkage (mm/m) 0.80
Time of coagulation (h) 3.0
Beneficial effect: the healant described in the present embodiment has longer time of coagulation, what effectively extend healant can the engineering time, water-retentivity is more excellent, dry shrinkage is less, and, the usage quantity of flyash is comparatively large, and the color after its aquation is more consistent with autoclaved aerated concrete slab, and aberration is less.
Embodiment 3
Each component is according to following masses per-cent proportioning starting material: flyash 40%, gypsum 30%, cement 5%, sand 24%, fiber 0.3%, water-holding agent 0.3%, retardant 0.4%.As follows according to JGJ/T70-2009 " building mortar basic performance tests method standard " detected result:
Test item Performance index
Water consumption (%) 25
Delamination degree (mm) 16
Denseness (mm) 71
Water retention (%) 97
Ultimate compression strength (MPa) 9.0
Cohesive strength (MPa) 0.39
Dry shrinkage (mm/m) 0.79
Time of coagulation (h) 2.0
Beneficial effect: the healant described in the present embodiment has shorter time of coagulation, effectively shortens the time of coagulation of healant, can shorten the polishing time, increase work efficiency; Owing to having higher sand content in healant, its ultimate compression strength is higher.
Embodiment 4
Each component is according to following masses per-cent proportioning starting material: flyash 43%, gypsum 14%, cement 8.5%, sand 30%, fiber 2.0%, water-holding agent 1.0%, retardant 1.5%.As follows according to JGJ/T70-2009 " building mortar basic performance tests method standard " detected result:
Test item Performance index
Water consumption (%) 27
Delamination degree (mm) 17
Denseness (mm) 73
Water retention (%) 97
Ultimate compression strength (MPa) 9.5
Cohesive strength (MPa) 0.36
Dry shrinkage (mm/m) 0.77
Time of coagulation (h) 2.7
Beneficial effect: the healant in the present embodiment has high sand content and higher fly ash content, this has the color more consistent with autoclaved aerated concrete slab after making healant have high ultimate compression strength and healant aquation, Performance comparision mates, and there is in proportioning higher fibre content, make it have higher resistance to cleavage.
Embodiment 5
Each component is according to following masses per-cent proportioning starting material: flyash 55%, gypsum 22%, cement 10.7%, sand 10%, fiber 1.0%, water-holding agent 0.5%, retardant 0.8%.As follows according to JGJ/T70-2009 " building mortar basic performance tests method standard " detected result:
Test item Performance index
Water consumption (%) 34
Delamination degree (mm) 15
Denseness (mm) 70
Water retention (%) 99
Ultimate compression strength (MPa) 8.8
Cohesive strength (MPa) 0.40
Dry shrinkage (mm/m) 0.83
Time of coagulation (h) 2.4
Beneficial effect: the healant described in the present embodiment has high fly ash content, this has the color consistent with autoclaved aerated concrete slab after making its aquation, its sand content is lower, make it finer and smoother, both the aesthetic property of product can have been improved, can repair less crack again, and its fibre content is higher, there is excellent resistance to cleavage.
The various embodiments described above for explanation of the present invention, are not only that those skilled in the art also can make a change on this basis to its restriction.

Claims (8)

1. an autoclaved aerated concrete slab healant, is characterized in that, comprises the component of following mass percent:
Flyash: 40%-60%
Gypsum: 10%-30%
Cement: 5%-15%
Sand: 10%-30%
Fiber: 0.01%-2.0%,
Water-holding agent: 0.01%-1.0%,
Retardant: 0.01%-1.5%,
Wherein, described flyash is the silicate building products flyash meeting JC/T, and described gypsum is semi-hydrated gypsum, and described cement is the general purpose portland cement meeting GB.
2. autoclaved aerated concrete slab healant according to claim 1, is characterized in that, described gypsum is one or more in the plaster of paris, desulfurated plaster, phosphogypsum, fluorgypsum.
3. autoclaved aerated concrete slab healant according to claim 1, is characterized in that, described sand is one or more in natural siliceous sand, dolomite sand, natural river sand.
4. the autoclaved aerated concrete slab healant according to claim 1 or 3, is characterized in that, the fineness of described sand is 60-120 order.
5. autoclaved aerated concrete slab healant according to claim 1, is characterized in that, described fiber is one or more in polypropylene fibre, trevira, wood fibre.
6. autoclaved aerated concrete slab healant according to claim 1, is characterized in that, described water-holding agent is one or more in methyl cellulose ether, Vltra tears, ethoxyl methyl cellulose ether.
7. the autoclaved aerated concrete slab healant according to claim 1 or 6, is characterized in that, the viscosity of described water-holding agent is at 50000-100000mPas.
8. autoclaved aerated concrete slab healant according to claim 1, is characterized in that, described retardant is one or more in citric acid, tartrate, phosphoric acid salt, ligninsulfonate.
CN201510359852.4A 2015-06-26 2015-06-26 Autoclaved aerated concrete plate repairing agent Pending CN104926258A (en)

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Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235052A (en) * 2015-09-24 2016-01-13 太原钢铁(集团)有限公司 Method for repairing defects of aerated concrete panel
CN105859234A (en) * 2016-03-30 2016-08-17 四川华西绿舍建材有限公司 Rapid repair mortar and repair process special for autoclaved aerated concrete slab
CN106116359A (en) * 2016-06-28 2016-11-16 北京建筑材料科学研究总院有限公司 A kind of special rapid-patching motar of steam-aerated concrete plate and preparation method and application
CN107954665A (en) * 2017-12-26 2018-04-24 陕西凝远新材料科技股份有限公司 A kind of light-weighted autoclaved special healant of sand aerated concrete plate and preparation method thereof
CN109776060A (en) * 2019-03-06 2019-05-21 北京建筑材料科学研究总院有限公司 A kind of plate stitch shove material and preparation method thereof for ALC Side fascia
CN110344521A (en) * 2019-07-11 2019-10-18 福建省顺天亿建设有限公司 A kind of construction method of construction wall
US10961151B2 (en) * 2017-02-02 2021-03-30 Saroj Vanijya Private Limited Engineered concrete binder composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102838334A (en) * 2012-09-28 2012-12-26 中铁十九局集团有限公司 Concrete member mending agent, preparation method and construction method
CN103951340A (en) * 2014-04-11 2014-07-30 天津天筑建材有限公司 Repair mortar specially used for low-density autoclaved aerated concrete slabs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102838334A (en) * 2012-09-28 2012-12-26 中铁十九局集团有限公司 Concrete member mending agent, preparation method and construction method
CN103951340A (en) * 2014-04-11 2014-07-30 天津天筑建材有限公司 Repair mortar specially used for low-density autoclaved aerated concrete slabs

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235052A (en) * 2015-09-24 2016-01-13 太原钢铁(集团)有限公司 Method for repairing defects of aerated concrete panel
CN105235052B (en) * 2015-09-24 2017-12-01 太原钢铁(集团)有限公司 A kind of method for repairing air entrained concrete sheet material defect
CN105859234A (en) * 2016-03-30 2016-08-17 四川华西绿舍建材有限公司 Rapid repair mortar and repair process special for autoclaved aerated concrete slab
CN106116359A (en) * 2016-06-28 2016-11-16 北京建筑材料科学研究总院有限公司 A kind of special rapid-patching motar of steam-aerated concrete plate and preparation method and application
US10961151B2 (en) * 2017-02-02 2021-03-30 Saroj Vanijya Private Limited Engineered concrete binder composition
CN107954665A (en) * 2017-12-26 2018-04-24 陕西凝远新材料科技股份有限公司 A kind of light-weighted autoclaved special healant of sand aerated concrete plate and preparation method thereof
CN109776060A (en) * 2019-03-06 2019-05-21 北京建筑材料科学研究总院有限公司 A kind of plate stitch shove material and preparation method thereof for ALC Side fascia
CN110344521A (en) * 2019-07-11 2019-10-18 福建省顺天亿建设有限公司 A kind of construction method of construction wall
CN110344521B (en) * 2019-07-11 2020-10-09 福建省顺天亿建设有限公司 Construction method of building wall

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Application publication date: 20150923

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