CN101928128B - Dry-mixed mortar with heat insulation function and preparation process thereof - Google Patents

Dry-mixed mortar with heat insulation function and preparation process thereof Download PDF

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Publication number
CN101928128B
CN101928128B CN2010102736806A CN201010273680A CN101928128B CN 101928128 B CN101928128 B CN 101928128B CN 2010102736806 A CN2010102736806 A CN 2010102736806A CN 201010273680 A CN201010273680 A CN 201010273680A CN 101928128 B CN101928128 B CN 101928128B
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China
Prior art keywords
expanded
dry
vitrified small
small ball
mixed mortar
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Expired - Fee Related
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CN2010102736806A
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Chinese (zh)
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CN101928128A (en
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黄盅日
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DONGGUAN JINGRUN ENVIRONMENTAL TECHNOLOGY Co Ltd
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DONGGUAN JINGRUN ENVIRONMENTAL TECHNOLOGY Co Ltd
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    • 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
    • C04B28/02—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 hydraulic cements other than calcium sulfates
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/06—Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C04B40/0608—Dry ready-made mixtures, e.g. mortars at which only water or a water solution has to be added before use
    • 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
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention relates to the technical field of building materials, in particular to dry-mixed mortar with a heat insulation function and a preparation process thereof. The dry-mixed mortar comprises the following components: expanded and vitrified small balls, cement and addictive, wherein the proportion ratio of the components is as follows by finished products/m<3>: 100-120kg of expanded and vitrified small balls, 140-160kg of cement and 10-20kg of addictive. The preparation method comprises the following steps: weighting raw materials; subsequently, mixing in a mixing device by two steps: firstly, mixing the raw materials except the expanded and vitrified small balls, and then adding the expanded and vitrified small balls to continuously mix in a closed material convective mixing region; and finally, measuring and packaging. The process of the invention is simple and can obtain the dry-mixed mortar having obvious heat insulation effect, stable structure and light quality, and the materials are evenly mixed; and the product has small coefficient of heat conductivity, superior combination property and extremely high economic benefit and society benefit, meets the new development requirements of building energy conversation, and is suitable for industrial popularization and application.

Description

A kind of preparation technology of dry-mixed mortar of heat-insulation and heat-preservation
Technical field
The present invention relates to building material technical field, refer in particular to a kind of dry-mixed mortar and preparation technology.
Background technology
In recent years, along with building requirements rises to 65% by 50%, present national most of areas had started to walk to implement, and progressively strided forward to energy-conservation 65%, and sign China building trade has got into building energy conservation new developing period.Body of wall is energy-conservation to be the integral part of building energy conservation, and body of wall turns to the composite wall build from single main material type, and is main with energy-saving body of wall, in national popularization and application.Yet traditional mortar material has satisfied not the performance requriements of novel wall, can not match with the building energy conservation system; Novel dry-mixed mortar then moistens living and rises, and it has characteristics such as heat insulating, seepage control and crack resistance, cohesiveness height, easy construction, carries out factory's Series Special production; Cooperate practicing of novel wall effectively; With the thermal insulation mortar low thermal conductivity, substitute traditional wall coating mortar, thereby reach energy-conservation requirement; Prevent hollowing cracking common phenomenon with good over-all properties again simultaneously; With the water-fast resistance to cleavage of anticracking grout antiseepage; Solve the tide erosion be full of cracks defective of body of wall facial ornament layer, solve the ornament layer freeze thawing with the high-performance adhesive mortar and be prone to obscission, improve weathering resistance; It is big to solve lightweight body of wall water-absorbent with special plastering mortar, causes the face hollowing problems of crack of plastering.Through for many years the building material application market being investigated; We are divided into thermal-insulating type, anti-cracking, binding type, the type of wiping one's face with dry-mixed mortar and build special-purpose dry-mixed mortars such as type by laying bricks or stones at present; And according to the requirement of national industry relevant criterion, emphasis solves and improves water-retentivity, snappiness, splitting resistance, cohesiveness and the weathering resistance of mortar, through carrying out modification with high molecular polymer and Gao Mo spandex fiber; Improve the dry-mixed mortar over-all properties, obtained good actual effect.At present; With the expanded and vitrified small ball is the novel expansion vitrification bead heat-preserving mortar of the adiabatic aggregate of lightweight; Alternative conventional expanded perlite, granular polystyrene are traditional thermal insulation mortar of aggregate; Many defectives such as hollowing, cracking, the intensity that has remedied traditional product is low, weathering resistance difference, and extensively approved by market, and applied fast.Particularly, improved the over-all properties of China's cold or severe cold area building energy conservation heat insulation system greatly with the compound use of High-Efficient Organic lagging material.
Dry-mixed mortar all is to adopt tap water owing to the scene adds the water stirring; Water temperature is usually at 15 ℃ ~ 20 ℃, a lot of macromolecule polymer materials at normal temperatures, the cold cut film-forming properties is all very poor; The very easily performance of influencing characteristic; Through selection contrast experiment repeatedly, external imported materials and items can solve cold cut property and film formation at low temp property preferably, and it is material modified to add difference according to the desired characteristic of different dry-mixed mortars.The dispersion of uniform mixing and Gao Mo spandex fiber is the key of production technology in process of production, because the various density of material of dry-mixed mortar are different with proportional quantity, the amount difference is very big; It is floating that aglite is prone to layering; The additive that use level is little is difficult for the homodisperse package aggregate, and high modulus fiber is very easily agglomerating in dry powder, is difficult for disperseing; So all very important from technology, equipment and additive agent modified material in production process, conventional production process and equipment are difficult to reach standard-required.
Summary of the invention
The object of the present invention is to provide a kind of heat insulation and preservation effect significantly, Stability Analysis of Structures, the dry-mixed mortar with functions such as energy-saving and environmental protection, light weights.
Still a further object of the present invention is to provide a kind of dry-mixed mortar preparation technology; It can solve in the dry-mixed mortar aglite, and to be prone to layering floating; The additive that use level is little is difficult for the homodisperse package aggregate; High modulus fiber is very easily agglomerating in dry powder, is difficult for the dispersive problem, makes mixing of materials homogeneity and fiber dispersion.
For achieving the above object, the present invention adopts following technical scheme:
A kind of preparation technology of dry-mixed mortar of heat-insulation and heat-preservation, this dry-mixed mortar adopts expanded and vitrified small ball to make light skeletal, and mixed cement and additive form, and it is characterized in that: comprise the steps,
1), raw materials weighing, press 1m 3Each component concentration takes by weighing raw material in the finished product, and expanded and vitrified small ball is 100 ~ 120kg, and cement is 140 ~ 160kg, and additive is 10 ~ 20kg; Wherein additive comprises wood fibre, HPMC, re-dispersible glue powder and polypropene staple;
2), mix in two steps: before this with other raw materials mix outside the expanded and vitrified small ball; Adding expanded and vitrified small ball again continues to mix; Mixing is in closed material convection current mixing zone, to accomplish; The spiral stirrer of the transverse design in the closed hybrid chamber rotates and stirs, and the realization material is accomplished mixing in closed material convection current mixing zone;
3), metering packing, metering packing work adopts mechanize to control metering automatically, metering packing partly includes material feeder, gauger, sealer and e Foerderanlage, material feeder is connected in and unloads between feed bin and the gauger; Material feeder comprises one fast one slow two feeding spiro rods, and two feeding spiro rods are realized separately control.
Other raw materials mix time outside the said expanded and vitrified small ball is 3 ~ 5 minutes, is 40 ~ 60 seconds and add expanded and vitrified small ball continued mixing time.
In the dry-mixed mortar of described heat-insulation and heat-preservation, press 1m 3Finished product calculates, and expanded and vitrified small ball is 120kg, and 42.5 class g cements are 160kg, wood fibre 3 kg, HPMC 1 kg, re-dispersible glue powder 6 kg and polypropene staple 0.5 kg.
The present invention through optimize dry-mixed mortar optimize in the proportioning of each component, obtain thus heat insulation and preservation effect significantly, Stability Analysis of Structures, the dry-mixed mortar with functions such as energy-saving and environmental protection, light weights; Dry-mixed mortar adds water and stirs and can use, and the thermal conductivity of product is that over-all properties is superior less than 0.07W/ (mk), meets the requirement of building energy conservation new development, and suitable industry is applied, and has high economic benefit and social benefit.
Dry-mixed mortar preparation technology provided by the invention adopts closed logistics convection current to mix; Form effectively three-dimensional the stirring; Utilize in the dry-mixed mortar various granulated aggregates to make convection current friction carrier; Mixing of materials uniformity and fiber dispersion have been solved effectively; Make in the whole process of production product quality very stable, realize a breakthrough of China's lightweight dry-mixed mortar technical task.
Adopt this preparation technology blended dry-mixed mortar, have high over-all properties, the light skeletal that expanded and vitrified small ball is done can be dispersed among the dry powder properties-correcting agent; And broken few, additive homodisperse package aggregate, product have excellent heat insulation performance, anti-aging weathering resistance; Hollowing cracking, intensity is high, and bonding, anti-sag performance are good; The bite and corrosion of insect protected ant, and have excellent constructing operation property; Be specially adapted to various brick mix structures, communal facility fireproof heat insulating heat insualting building energy conservation projects such as the external and internal wall complex heat-preservation of skeleton construction and shear wall structure and vault, garage, stair corridor, fire passage.
Description of drawings:
One of them the mixing equipment structural representation that adopts when accompanying drawing 1 is implemented for the present invention.
Embodiment:
The dry-mixed mortar of a kind of heat-insulation and heat-preservation of the present invention, it component that comprises has expanded and vitrified small ball, cement and additive, and the proportioning of each component is following: press 1m 3Finished product calculates, and expanded and vitrified small ball is 100 ~ 120kg, and cement is 140 ~ 160kg, and additive is 10 ~ 20kg; Said additive comprises wood fibre, HPMC, re-dispersible glue powder and polypropene staple.Also can be added with quartz sand, blowing agent etc. based on actual required product performance demands.
It is to press 1m that the dry-mixed mortar of described heat-insulation and heat-preservation is optimized proportioning 3Finished product calculates, and expanded and vitrified small ball is 120kg, and 42.5 class g cements are 160kg, wood fibre 3 kg, HPMC 1 kg, re-dispersible glue powder 6 kg and polypropene staple 0.5 kg.
The present invention also provides a kind of preparation technology to the dry-mixed mortar of above-mentioned heat-insulation and heat-preservation, comprises the steps:
1), raw materials weighing, press 1m 3Each component concentration takes by weighing raw material in the finished product;
2), mix in two steps: before this with other raw materials mix outside the expanded and vitrified small ball, add expanded and vitrified small ball again and continue to mix, mixing is in closed material convection current mixing zone, to accomplish;
3), metering packing.
For step 2) in mixing require as follows: other raw materials mix time outside the expanded and vitrified small ball is 3 ~ 5 minutes, and adding expanded and vitrified small ball continued mixing time is 40 ~ 60 seconds.
Embodiment 1:
Press 1m 3Finished product calculates, and taking by weighing expanded and vitrified small ball is 120kg, and 42.5 class g cements are 160kg, wood fibre 3 kg, HPMC 1 kg, re-dispersible glue powder 6 kg and polypropene staple 0.5 kg.
Adopt mixing equipment as shown in Figure 1 during mixing; Be 160kg with 42.5 class g cements earlier; Wood fibre 3 kg, HPMC 1 kg, re-dispersible glue powder 6 kg and polypropene staple 0.5 kg promote through feeding part 10 and deliver in the storage bin 21; Open the outlet of storage bin 21, material is injected in the closed hybrid chamber 22, stir through spiral stirrer 24 rotations of the transverse design in the closed hybrid chamber 22; The realization material is accomplished mixing in closed material convection current mixing zone, mixing time is 5 minutes; During other raw materials mix outside expanded and vitrified small ball, it is subsequent use that feeding part 10 also is with expanded and vitrified small ball that 120kg rises in the storage bin 21 simultaneously; Add expanded and vitrified small ball after back mixes again and continue to mix, mixing time is 60 seconds, can accomplish dry-mixed mortar and mix production.The mixture that mixes is discharged in the feed bin 23 and deposits, in order to follow-up metering packing work.Metering packing work adopts mechanize to control metering automatically, and the process of producing product quality control is reliable and stable, operates simple and easyly, reduces labor intensity.Among the figure, metering packing part 30 includes material feeder 31, gauger 32, sealer 33 and e Foerderanlage 34, and material feeder 31 is connected in and unloads between feed bin 23 and the gauger 32; Material feeder 31 comprises one fast one slow two feeding spiro rods, and two feeding spiro rods are realized separately control.During work, fast before this feeding spiro rod work realizes being preliminary feed by gauger 32 to expecting fast; When giving when expecting set(ting)value,, stop fast feeding spiro rod through automatically controlled part control; Start slow feeding spiro rod simultaneously, realize accurate feeding, when obtaining the compound of load quantity in the gauger 32; Stop feed, open the valve of gauger 32, realize the compound of load quantity is injected packing bag; Packing bag is transported output through sealer 33 involutions and e Foerderanlage 34, promptly accomplishes metering packing work.
Embodiment 2:
Press 1m 3Finished product calculates, and taking by weighing expanded and vitrified small ball is 110kg, and 42.5 class g cements are 160kg, wood fibre 3.5 kg, HPMC 1 kg, re-dispersible glue powder 5kg and polypropene staple 0.5 kg.
Mixing process such as embodiment 1 unanimity, just other raw materials mix time outside the expanded and vitrified small ball is 5 minutes, is 50 seconds and add expanded and vitrified small ball continued mixing time, all the other are operated in this and give unnecessary details no longer one by one.
Embodiment 3:
Press 1m 3Finished product calculates, and taking by weighing expanded and vitrified small ball is 115kg, and 42.5 class g cements are 150kg, wood fibre 3.5 kg, HPMC 1.5 kg, re-dispersible glue powder 6kg and polypropene staple 0.5 kg.
Mixing process such as embodiment 1 unanimity, just other raw materials mix time outside the expanded and vitrified small ball is 4 minutes, is 60 seconds and add expanded and vitrified small ball continued mixing time, all the other are operated in this and give unnecessary details no longer one by one.
Embodiment 4:
Press 1m 3Finished product calculates, and taking by weighing expanded and vitrified small ball is 105kg, and 42.5 class g cements are 140kg, wood fibre 3 kg, HPMC 1 kg, re-dispersible glue powder 6kg and polypropene staple 0.5 kg.
Mixing process such as embodiment 1 unanimity, just other raw materials mix time outside the expanded and vitrified small ball is 3 minutes, is 45 seconds and add expanded and vitrified small ball continued mixing time, all the other are operated in this and give unnecessary details no longer one by one.
Embodiment 5:
Press 1m 3Finished product calculates, and taking by weighing expanded and vitrified small ball is 100kg, and 42.5 class g cements are 140kg, wood fibre 4kg, HPMC 1 kg, re-dispersible glue powder 5kg and polypropene staple 0.5 kg.
Mixing process such as embodiment 1 unanimity, just other raw materials mix time outside the expanded and vitrified small ball is 3 minutes, is 40 seconds and add expanded and vitrified small ball continued mixing time, all the other are operated in this and give unnecessary details no longer one by one.
Embodiment 6:
Press 1m 3Finished product calculates, and taking by weighing expanded and vitrified small ball is 110kg, and 42.5 class g cements are 150kg, wood fibre 3.5 kg, HPMC 1.5 kg, re-dispersible glue powder 6kg and polypropene staple 0.5 kg.
Mixing process such as embodiment 1 unanimity, just other raw materials mix time outside the expanded and vitrified small ball is 3.5 minutes, is 50 seconds and add expanded and vitrified small ball continued mixing time, all the other are operated in this and give unnecessary details no longer one by one.
The present invention mixes in two steps: with other raw materials mix outside the expanded and vitrified small ball, added expanded and vitrified small ball more before this, and adopt closed material convection current to mix; Material between the mixing zone of sealing in convection current mix, form effectively three-dimensional the stirring, utilize in the dry-mixed mortar various granulated aggregates to make the convection current carrier that rubs, solved mixing of materials homogeneity and fiber dispersion, make in the whole process of production quality product very stable.Metering packing adopts mechanize to control metering automatically, and the process of producing product quality control is reliable and stable, operates simple and easyly, reduces labor intensity.
The present invention accomplishes in the whole process of production unattended operation, and production automation degree is high, and continuity is strong, and quality control is stable; The technological process of production is compact to design, reasonable, reduces production costs, improves the quality of products, realizes cleaner production.Mixing process effectively reduces the light skeletal fragmentation, guarantees the recoverable amount of the expanded and vitrified small ball in the product, makes product have excellent heat insulation performance, anti-aging weathering resistance; Hollowing does not ftracture; Intensity is high, and bonding, anti-sag performance are good, the bite and corrosion of insect protected ant; Combustionproperty can reach the A level, and has excellent constructing operation property.Through optimization of C, improve cohesiveness, the water-retentivity of material, reduce the density of material; The mitigation system load; Significantly improve the workability of material, efficiently solve the difficult problem of on-the-spot water seasoning control, the also corresponding increase system stability that connects; This lagging material can directly be applied in the body of wall energy-saving field, does not need other interface subsidiary material.

Claims (3)

1. the preparation technology of the dry-mixed mortar of a heat-insulation and heat-preservation, this dry-mixed mortar adopts expanded and vitrified small ball to make light skeletal, and mixed cement and additive form, and it is characterized in that: comprise the steps,
1), raw materials weighing, press 1m 3Each component concentration takes by weighing raw material in the finished product, and expanded and vitrified small ball is 100 ~ 120kg, and cement is 140 ~ 160kg, and additive is 10 ~ 20kg; Wherein additive comprises wood fibre, HPMC, re-dispersible glue powder and polypropene staple;
2), mix in two steps: before this with other raw materials mix outside the expanded and vitrified small ball; Adding expanded and vitrified small ball again continues to mix; Mixing is in closed material convection current mixing zone, to accomplish; The spiral stirrer of the transverse design in the closed hybrid chamber rotates and stirs, and the realization material is accomplished mixing in closed material convection current mixing zone;
3), metering packing, metering packing work adopts mechanize to control metering automatically, metering packing partly includes material feeder, gauger, sealer and e Foerderanlage, material feeder is connected in and unloads between feed bin and the gauger; Material feeder comprises one fast one slow two feeding spiro rods, and two feeding spiro rods are realized separately control.
2. the preparation technology of the dry-mixed mortar of a kind of heat-insulation and heat-preservation according to claim 1, it is characterized in that: other raw materials mix time outside the expanded and vitrified small ball is 3 ~ 5 minutes, is 40 ~ 60 seconds and add expanded and vitrified small ball continued mixing time.
3. the preparation technology of the dry-mixed mortar of a kind of heat-insulation and heat-preservation according to claim 1 is characterized in that: in the dry-mixed mortar of described heat-insulation and heat-preservation, press 1m 3Finished product calculates, and expanded and vitrified small ball is 120kg, and 42.5 class g cements are 160kg, wood fibre 3 kg, HPMC 1 kg, re-dispersible glue powder 6 kg and polypropene staple 0.5 kg.
CN2010102736806A 2010-09-07 2010-09-07 Dry-mixed mortar with heat insulation function and preparation process thereof Expired - Fee Related CN101928128B (en)

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CN113427631B (en) * 2021-07-22 2022-03-01 江苏晨日环保科技有限公司 High-precision automatic environment-friendly mortar production equipment
CN114477906A (en) * 2022-02-18 2022-05-13 芜湖凝力特种干粉砂浆有限责任公司 Special cement mortar production process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101250048A (en) * 2007-02-25 2008-08-27 陈雄载 Heat-proof insulation waterproof dry-mixed mortar and preparation thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101250048A (en) * 2007-02-25 2008-08-27 陈雄载 Heat-proof insulation waterproof dry-mixed mortar and preparation thereof

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