CN101538142A - Phosphate heat preservation mortar for outer wall of buildings - Google Patents

Phosphate heat preservation mortar for outer wall of buildings Download PDF

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Publication number
CN101538142A
CN101538142A CN200910049875A CN200910049875A CN101538142A CN 101538142 A CN101538142 A CN 101538142A CN 200910049875 A CN200910049875 A CN 200910049875A CN 200910049875 A CN200910049875 A CN 200910049875A CN 101538142 A CN101538142 A CN 101538142A
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CN
China
Prior art keywords
phosphate
heat preservation
wall
preservation mortar
buildings according
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
CN200910049875A
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Chinese (zh)
Inventor
陈兵
陈龙珠
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Filing date
Publication date
Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN200910049875A priority Critical patent/CN101538142A/en
Publication of CN101538142A publication Critical patent/CN101538142A/en
Pending legal-status Critical Current

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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
    • C04B28/34—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 cold phosphate binders
    • C04B28/344—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 cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • C04B2103/0006—Alkali metal or inorganic ammonium compounds
    • C04B2103/0007—K
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • C04B2103/0006—Alkali metal or inorganic ammonium compounds
    • C04B2103/0009—Inorganic ammonium compounds
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/29—Frost-thaw resistance
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to a phosphate heat preservation mortar for the outer wall of buildings, comprising the following components by weight percentage: 30-45%of dihydric phosphate 9.94-14.7% of metal oxide powder, 38.5-57% of flyash, 0.06-0.3% of an adjustable solidification material, 1.4-2.8% of polystyrene foam granule and 0.1-0.2% polypropylene fiber. The heat preservation mortar of the invention enjoys low heat conductivity, non-crack, no spatial drum, good frost resistance and water resistance, heat preservation, good sound insulation, energy saving, low production cost, harmlessness, no pollution, being easy to achieve the heat insulation and sound insulation of the construction, etc.

Description

Phosphate heat preservation mortar for outer wall of buildings
Technical field
The present invention relates to a kind of mortar of building material engineering technical field, specifically is a kind of phosphate heat preservation mortar for outer wall of buildings.
Background technology
At present, country is greatly developing and is advocating environmental protection, energy-saving building structure.Implement building energy conservation and must increase substantially peripheral structure, especially the thermal property of exterior wall.In general, building maintenance structure adopts power-economizing method to mainly contain two kinds: the one, directly select heat-insulating wall structure for use; The one, select for use at wall external layer brushing one deck thermal insulation mortar.Comparatively speaking, adopt wall external layer brushing thermal insulation mortar, construction is simple, and especially for existing building structure, its advantage is more obvious.Therefore, skin adopts and to whitewash thermal insulation mortar and used more and more with the method that guarantees the building energy-saving performance.
Find that through literature search thermal insulation mortar mainly is that employing lightweight fine aggregate and sand-cement slurry are formulated, wherein be subjected to paying attention to widely with the thermal insulation mortar of polystyrene foam particles as fine aggregate to prior art.Chinese patent (publication number: CN101229969A, open day: 2008.07.30) described following content, adopting rubber powder material, EPS particle light skeletal and water was 35: 1.5: 250 formulated thermal insulation mortars by mass ratio; Chinese patent (publication number: CN101041577A and for example, open day: 2007.09.26) described following content, adopt cement, mineral additive, air entrapment agent, thickening material and polystyrene foam particle and sand to be mixed with thermal insulation mortar, the patented product can form an integral body well with body of wall, but its shrinkage performance fails to solve well; Chinese patent (publication number: CN101148342A, open day: 2008.03.26) described following content, the deficiency of and weather resistance easy to crack at thermal insulation mortar, propose to adopt infrared reflection material, polypropene staple and macromolecule emulsion etc. to carry out modification, the lagging material of preparation has the sticking power height, can craze and transfiguration, and characteristic such as the antiseep ability is strong, but with respect to other thermal insulation mortar materials, its price comparison is expensive and construction period is long.By to existing thermal insulation mortar material analysis, the gelling material that is adopted substantially all is a cement matrix, behind its setting and harden, have bigger drying shrinkage characteristic, easy to crack, the freeze-thawing resistant circulation ability is poor, be difficult for that construction, setting and harden are slow and limited with the viscosifying power of base material in the winter time, in actual engineering, use and be subjected to certain restriction.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of phosphate heat preservation mortar for outer wall of buildings is provided.Thermal insulation mortar of the present invention have thermal conductivity low, do not ftracture, not hollowing, frost resistance and water tolerance, insulation well, soundproof effect good, save advantages such as the energy, production cost are low, nontoxic pollution-free, the thermal insulation of being convenient to construct, sound insulation.
The present invention is achieved by the following technical solutions, and the component of phosphate heat preservation mortar for outer wall of buildings of the present invention and weight percent thereof are:
Dihydrogen phosphate 30%～45%
Metal oxide powder 9.94%～14.7%
Flyash 38.5%～57%
Transfer gel material 0.06%～0.3%
Polystyrene foam particles 1.4%～2.8%
Polypropylene fibre 0.1%～0.2%.
Described dihydrogen phosphate is one or more in potassium primary phosphate, primary ammonium phosphate, SODIUM PHOSPHATE, MONOBASIC or the monocalcium phosphate.
Described dihydrogen phosphate is potassium primary phosphate or primary ammonium phosphate, and grain diameter＜100um.
Described metal oxide powder was one or more in burned magnesium oxide, calcium oxide, ferric oxide, ferric oxide or the aluminium sesquioxide.
Described metal oxide powder was a burned magnesium oxide, and grain diameter is 2um～100um.
Described flyash is a kind of in II level flyash, III level flyash or the high-calcium fly ass.
Described accent gel material is a kind of in boric acid, borax or the citric acid.
Described accent gel material is a borax.
Described polystyrene foam particles is 1.0mm～3.0mm.
Described polypropylene fibre length is 5mm～15mm, and diameter is 30um～50um.
Take by weighing various starting material according to the above ratio, fully stir in stirrer, the back of waiting to stir forms product, packs, and obtains phosphoric acid salt external wall of building thermal insulation mortar.
The present invention mixes packed forming by a certain percentage by dihydrogen phosphate, magnesium oxide powder, flyash, accent gel material, polystyrene foam particles and polypropylene fibre; The present invention can be used for preparation and has rapid coagulation hardened phosphate cement, and this cement has very characteristic such as excellent bond performance and favorable durability and process of setting microdilatancy.Behind the thermal insulation mortar blunge of the present invention, phosphate cement slurry and polystyrene foam particles form uniform flowable slip, and the rapid setting and harden of energy, produce stronger cohesive force with base material, in mixture, mix a large amount of flyash, one reduce the cost and the waste utilization of thermal insulation mortar, what is more important adds the cohesive strength that flyash can improve thermal insulation mortar, for preventing cracking and hollowing to occur behind the sand finish, in the mortar mix, mix the fine PP fiber of certain volume content.
The present invention has following beneficial effect: thermal insulation mortar of the present invention can harden in rapid coagulation, produces stronger viscosifying power with base material; Stable physical property produces the volume microdilatancy during setting and harden, do not ftracture, hollowing not, and water tolerance is strong, and is anti-aging, long service life, and unit weight is light, and dry density is 300～480kg/m 3The heat preservation and soundproof performance is good, and thermal conductivity is 0.07～0.13W/mk; But the present invention adopts a large amount of flyash utilization of waste material, can reduce the pollution to environment; The present invention is easy to use, can realize civilized construction; Product is nontoxic, tasteless, and is harmless, free from environmental pollution, belongs to the environment-friendly type heat insulating energy saving material.
Embodiment
Below embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.
Embodiment 1
Each component of present embodiment phosphoric acid salt external wall of building thermal insulation mortar with and weight percent be:
Potassium primary phosphate 30%
Magnesium oxide 9.94%
Borax 0.06%
Flyash 57%
Polystyrene foam particles 2.8%
Polypropylene fibre 0.2%
Take by weighing various starting material according to the above ratio, fully stir in stirrer, the back of waiting to stir forms product, packs, and obtains phosphoric acid salt external wall of building thermal insulation mortar.
Embodiment 2
Each component of present embodiment phosphoric acid salt external wall of building thermal insulation mortar with and weight percent be:
Ammonium di-hydrogen phosphate 45%
Magnesium oxide 14.7%
Boric acid 0.3%
Flyash 38.5%
Polystyrene foam particles 1.4%
Polypropylene fibre 0.1%
Take by weighing various starting material according to the above ratio, fully stir in stirrer, the back of waiting to stir forms product, packs, and obtains phosphoric acid salt external wall of building thermal insulation mortar.
Embodiment 3
Each component of present embodiment phosphoric acid salt external wall of building thermal insulation mortar with and weight percent be:
Potassium primary phosphate 37.5%
Magnesium oxide 12.32%
Borax 0.18%
Flyash 47.75%
Polystyrene foam particles 2.1%
Polypropylene fibre 0.15%
Take by weighing various starting material according to the above ratio, fully stir in stirrer, the back of waiting to stir forms product, packs, and obtains phosphoric acid salt external wall of building thermal insulation mortar.
Embodiment 4
Each component of present embodiment phosphoric acid salt external wall of building thermal insulation mortar with and weight percent be:
Monocalcium phosphate 40%
Magnesium oxide 9.94%
Citric acid 0.06%
Flyash 47.85%
Polystyrene foam particles 2.0%
Polypropylene fibre 0.15%
Take by weighing various starting material according to the above ratio, fully stir in stirrer, the back of waiting to stir forms product, packs, and obtains phosphoric acid salt external wall of building thermal insulation mortar.
Said components obtains heat-insulating mortar dry powder by aforementioned prepared, adds suitable quantity of water, makes mortar mix denseness reach 80mm, presses standard-required moulding sample.Respectively its wet apparent density, dried apparent density, thermal conductivity, ultimate compression strength, pressure are cut cohesive strength, linear shrinkage and coefficient of softening and are tested, test result such as table 1 with reference to the poly-stupid particle heat-insulating slip testing method of 6.5 rubber powders among the JG158-2004 " rubber powder gathers stupid particle outer heat preservation system ":
Table 1 polystyrene foamed particle heat insulation mortar performance
Embodiment Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
Wet apparent density (kg/m 3) 390 375 385 380
Do apparent density (kg/m 3) 220 211 218 215
Thermal conductivity (W/mk) 0.045 0.028 0.040 0.035
Ultimate compression strength (kPa) 550 445 515 495
Pressure is cut bonding strong (kPa) 95 70 82 85
Linear shrinkage (%) 0.0075 0.010 0.0090 0.0095
Coefficient of softening 0.95 0.90 0.93 0.94

Claims (10)

1, a kind of phosphate heat preservation mortar for outer wall of buildings is characterized in that, component and weight percent thereof are:
Dihydrogen phosphate 30%～45%
Metal oxide powder 9.94%～14.7%
Flyash 38.5%～57%
Transfer gel material 0.06%～0.3%
Polystyrene foam particles 1.4%～2.8%
Polypropylene fibre 0.1%～0.2%.
2, phosphate heat preservation mortar for outer wall of buildings according to claim 1 is characterized in that, described dihydrogen phosphate is one or more in potassium primary phosphate, primary ammonium phosphate, SODIUM PHOSPHATE, MONOBASIC or the monocalcium phosphate.
3, phosphate heat preservation mortar for outer wall of buildings according to claim 2 is characterized in that, described dihydrogen phosphate is potassium primary phosphate or primary ammonium phosphate, grain diameter＜100um.
4, phosphate heat preservation mortar for outer wall of buildings according to claim 1 is characterized in that, described metal oxide powder was one or more in burned magnesium oxide, calcium oxide, ferric oxide, ferric oxide or the aluminium sesquioxide.
5, phosphate heat preservation mortar for outer wall of buildings according to claim 4 is characterized in that, described metal oxide powder was a burned magnesium oxide, and grain diameter is 2um～100um.
6, phosphate heat preservation mortar for outer wall of buildings according to claim 1 is characterized in that, described flyash is a kind of in II level flyash, III level flyash or the high-calcium fly ass.
7, phosphate heat preservation mortar for outer wall of buildings according to claim 1 is characterized in that, described accent gel material is a kind of in boric acid, borax or the citric acid.
8, phosphate heat preservation mortar for outer wall of buildings according to claim 7 is characterized in that, described accent gel material is a borax.
9, phosphate heat preservation mortar for outer wall of buildings according to claim 1 is characterized in that, described polystyrene foam particles is 1.0mm～3.0mm.
10, phosphate heat preservation mortar for outer wall of buildings according to claim 1 is characterized in that, described polypropylene fibre length is 5mm～15mm, and diameter is 30um～50um.
CN200910049875A 2009-04-23 2009-04-23 Phosphate heat preservation mortar for outer wall of buildings Pending CN101538142A (en)

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Application Number Priority Date Filing Date Title
CN200910049875A CN101538142A (en) 2009-04-23 2009-04-23 Phosphate heat preservation mortar for outer wall of buildings

Publications (1)

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CN101538142A true CN101538142A (en) 2009-09-23

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102010174A (en) * 2010-11-12 2011-04-13 中国科学院青海盐湖研究院 Thermal insulation mortar
CN103011753A (en) * 2011-09-26 2013-04-03 郭静萍 Inorganic early-strength and quick-setting material
CN105645797A (en) * 2016-01-06 2016-06-08 昆明理工大学 Ferrochromium-slag-base calcium phosphate chemical bonding material and application thereof
CN105819786A (en) * 2016-03-17 2016-08-03 合肥晨煦信息科技有限公司 Cement base enhanced composite material
CN107428615A (en) * 2014-12-23 2017-12-01 圣戈班韦伯公司 Acid/base binding agent comprising the cement based on phosphate compounds

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102010174A (en) * 2010-11-12 2011-04-13 中国科学院青海盐湖研究院 Thermal insulation mortar
CN103011753A (en) * 2011-09-26 2013-04-03 郭静萍 Inorganic early-strength and quick-setting material
CN107428615A (en) * 2014-12-23 2017-12-01 圣戈班韦伯公司 Acid/base binding agent comprising the cement based on phosphate compounds
CN105645797A (en) * 2016-01-06 2016-06-08 昆明理工大学 Ferrochromium-slag-base calcium phosphate chemical bonding material and application thereof
CN105819786A (en) * 2016-03-17 2016-08-03 合肥晨煦信息科技有限公司 Cement base enhanced composite material

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Open date: 20090923