CN101508543A - Mortar special for light insulating brick construction and method of producing the same - Google Patents

Mortar special for light insulating brick construction and method of producing the same Download PDF

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Publication number
CN101508543A
CN101508543A CNA2009100612223A CN200910061222A CN101508543A CN 101508543 A CN101508543 A CN 101508543A CN A2009100612223 A CNA2009100612223 A CN A2009100612223A CN 200910061222 A CN200910061222 A CN 200910061222A CN 101508543 A CN101508543 A CN 101508543A
Authority
CN
China
Prior art keywords
sand
mortar
insulating brick
portions
cement
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.)
Granted
Application number
CNA2009100612223A
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Chinese (zh)
Other versions
CN101508543B (en
Inventor
张格飞
柳学忠
钱斌
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.)
WUHAN DICHAN DEVELOPMENT INVESTMENT GROUP Co Ltd
Original Assignee
WUHAN DICHAN DEVELOPMENT INVESTMENT GROUP 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.)
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Priority to CN2009100612223A priority Critical patent/CN101508543B/en
Publication of CN101508543A publication Critical patent/CN101508543A/en
Application granted granted Critical
Publication of CN101508543B publication Critical patent/CN101508543B/en
Expired - Fee Related 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
    • C04B28/02—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
    • 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
    • C04B2111/34—Non-shrinking or non-cracking 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
    • C04B2111/40—Porous or lightweight materials
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Ceramic Products (AREA)

Abstract

The invention relates to mortar special for the masonry of light-weight insulating bricks, which comprises the following raw material compositions in portion by weight: 15 to 35 portions of fly ash, 20 to 40 portions of perlite, 1 to 7 portions of bentonite, 1 to 10 portions of hydrated lime, 1 portion of cellulose ether, 200 to 350 portions of sand, 50 to 100 portions of pottery sand, and 100 portions of cement. The preparation method thereof comprises the following steps that: 1) the fly ash, the sand, the pottery sand, the bentonite, the hydrated lime, the cellulose ether and the cement are evenly mixed through a machine according to the weight ratio respectively; 2) the perlite is added into the mixture according to the weight ratio, and the even mixing is performed through the machine again; and 3) mixed mortar is subjected to quota packaging. The mortar has the advantages of simple preparation technology, low drying shrinkage, high strength, low heat conductivity coefficient, good frost-resistant durability, and good thermal insulation effect, and solves the problems of cold and hot bridges, cracking and water leakage, poor thermal insulation performance, and the like existing on wall bodies which use common masonry mortar.

Description

Mortar special for light insulating brick construction and preparation method thereof
Technical field
The invention belongs to a kind of material of construction, be specifically related to a kind of mortar special for light insulating brick construction and preparation method thereof.
Background technology
Along with the appearance of national materials for wall innovation policy and the progress of energy-saving building technology, make all kinds of light-weight insulating bricks obtain a large amount of application, but present light-weight insulating brick still mostly is ordinary mortar and builds by laying bricks or stones, and the unit dry weight of common masonry mortar is generally 1500～1900kg/m 3, thermal conductivity is 0.7～1.2W/mK, and mostly is the working-yard preparation, is subjected to the working-yard condition influence bigger, causes the intensity of mortar and performance all unstable.And the unit dry weight of light-weight insulating brick is generally 350～950kg/m 3, thermal conductivity is 0.07～0.25W/mK, intensity is comparatively balanced, because unit dry weight, thermal conductivity differ bigger between the two, intensity does not match, and causes body of wall to occur following subject matter easily: and the one, easy to crack, the infiltration of body of wall; The 2nd, body of wall " heat bridge " is comparatively obvious, and heat-insulating property is poor.Have a strong impact on construction quality and work-ing life, also restricted the development with building energy conservation applied of novel wall material.
Relevant both at home and abroad by retrieval scientific and technical literature is found: building material technique had been published " novel development of building by laying bricks or stones with thermal insulation mortar " with the application fourth phase in 2006, fiber, sand grating and air entrapment agent have been discussed to being the influence of the mortar of aglite with the haydite, its mortar thermal conductivity is 0.4～0.6W/ (m.k), but the haydite rough porous, workability is poor.Stepped on " application of cement, flyash masonry mortar and popularization " at construction quality the 9th periodical in 2007, it is some application that cement, flyash masonry mortar place of cement lime mixed mortar is built by laying bricks or stones that a kind of new type mortar has been discussed, but flyash can reduce the intensity of mortar.2008 " flyash " the 20th volume the 4th periodical has been stepped on " granulated blast-furnace slag prepares the research and the application of high-performance heat-insulating masonry mortar for sand "; introduced and utilized granulated blast-furnace slag to be sand; can produce high performance thermal-insulating type masonry mortar product through preparation rationally; be specially adapted to build by laying bricks or stones various light thermal-insulation energy-saving building blocks bodies of wall; but complex process is brought certain limitation to Workshop Production.
Summary of the invention
Technical problem to be solved by this invention provides a kind of mortar special for light insulating brick construction and preparation method thereof, this mortar is with cement, flyash and gelling material, with the perlite is light skeletal, have low drying shrinkage, intensity height, low, the freeze proof good endurance of thermal conductivity, can solve problems such as poor, the freeze proof poor durability of the existing heat-insulating property of body of wall of using ordinary mortar to build by laying bricks or stones, work-ing life weak point, workability difference effectively.
Technical scheme of the present invention: a kind of mortar special for light insulating brick construction, its feed composition and weight content are:
15～35 parts in flyash, 20～40 parts of perlites, 1～7 part of wilkinite,
1～10 part of dry hydrate, 1 part of ether of cellulose, 200～350 parts in sand,
50～100 parts in pottery sand, 100 parts of cement.
Described flyash is I level or II level flyash.Described perlite is that unit weight is less than 150/m 3Pearlstone.Described wilkinite is the modification sodium bentonite.Described sand is through scouring, exsiccant natural sand or quartz sand.Described pottery sand is the mixture through any or they of the lytag of screening and rock matter haydite.Described cement is that strength grade is 42.5 ordinary Portland cement or slag cement.
A kind of preparation method of mortar special for light insulating brick construction, it may further comprise the steps: 1) flyash, sand, pottery sand, wilkinite, dry hydrate, ether of cellulose, cement are passed through mechanical uniform mixing by aforementioned weight ratio respectively; 2) perlite is added by aforementioned weight ratio, once more by mechanical uniform mixing; 3) mortar that mixes is packed by norm.
The present invention compared with prior art has following beneficial effect: 1, this mortar does not have cold and hot bridge generation, and heat insulating effect is outstanding, has avoided because of using the body of wall of common masonry mortar, problems such as existing cold and hot bridge, heat-insulating property difference; 2, preparation technology is simple, adopt the workshop to become more meticulous and produce and management, thereby have material good workability, stable performance, cost low, avoid mixing at the construction field (site) advantages such as causing environmental pollution; 3, the intensity height, application property is good, thermal conductivity is low, frost resistance is good, avoids because of using the body of wall of common masonry mortar, produces quality problems such as the infiltration of ftractureing because of various material stresses are different.
Main performance index sees the following form:
Project Measure unit Index
Thermal conductivity W/(m.k) <0.2
Delamination degree mm <18
Dry density kg/m 3 <1100
Bonding strength MPa ≥0.2
Ultimate compression strength MPa ≥5
Time of coagulation h 3～5h when penetration resistance reaches 0.5MPa
Frost resistance 25 times ％ Mass loss≤5, loss of strength≤5
Shrinkage mm/m ≤1.0
Embodiment
Embodiment 1: a kind of mortar special for light insulating brick construction, and feed composition and weight content are:
15 parts in flyash, 20 parts of perlites, 7 parts of wilkinites,
2 parts of dry hydrates, 1 part of ether of cellulose, 350 parts in sand,
50 parts in pottery sand, 100 parts of cement.
Described flyash is II level flyash.Described perlite is that unit weight is 150/m 3Pearlstone.Described wilkinite is the modification sodium bentonite.Described sand is through scouring, exsiccant natural sand.Described pottery sand is through grate coal ashes haydite.Described cement is that strength grade is 42.5 ordinary Portland cement.
Embodiment 2: a kind of mortar special for light insulating brick construction, and feed composition and weight content are:
35 parts in flyash, 40 parts of perlites, 1 part of wilkinite,
10 parts of dry hydrates, 1 part of ether of cellulose, 200 parts in sand,
100 parts in pottery sand, 100 parts of cement.
Described flyash is I level flyash.Described perlite is that unit weight is 150/m 3Pearlstone.Described wilkinite is the modification sodium bentonite.Described sand is through scouring, exsiccant quartz sand.Described pottery sand is the rock matter haydite through screening.Described cement is that strength grade is 42.5 slag cement.
Embodiment 3: a kind of mortar special for light insulating brick construction, and feed composition and weight content are:
20 parts in flyash, 30 parts of perlites, 4 parts of wilkinites,
5 parts of dry hydrates, 1 part of ether of cellulose, 300 parts in sand,
80 parts in pottery sand, 100 parts of cement.
Described flyash is II level flyash.Described perlite is that unit weight is 150/m 3Pearlstone.Described wilkinite is the modification sodium bentonite.Described sand is through scouring, exsiccant natural sand.Described pottery sand is through the lytag of screening and the mixture of rock matter haydite.Described cement is that strength grade is 42.5 ordinary Portland cement.
The preparation method of the mortar special for light insulating brick construction among above-mentioned three kinds of embodiment, they may further comprise the steps: 1) flyash, sand, pottery sand, wilkinite, dry hydrate, ether of cellulose, cement are passed through mechanical uniform mixing by aforementioned weight ratio respectively; 2) perlite is added by aforementioned weight ratio, once more by mechanical uniform mixing; 3) mortar that mixes is packed by norm.

Claims (8)

1, a kind of mortar special for light insulating brick construction is characterized in that its feed composition and weight content are:
15～35 parts in flyash, 20～40 parts of perlites, 1～7 part of wilkinite,
1～10 part of dry hydrate, 1 part of ether of cellulose, 200～350 parts in sand,
50～100 parts in pottery sand, 100 parts of cement.
2, a kind of mortar special for light insulating brick construction according to claim 1 is characterized in that: described flyash is I level or II level flyash.
3, a kind of mortar special for light insulating brick construction according to claim 1 is characterized in that: described perlite is that unit weight is less than 150/m 3Pearlstone.
4, a kind of mortar special for light insulating brick construction according to claim 1 is characterized in that: described wilkinite is the modification sodium bentonite.
5, a kind of mortar special for light insulating brick construction according to claim 1 is characterized in that: described sand is through scouring, exsiccant natural sand or quartz sand.
6, a kind of mortar special for light insulating brick construction according to claim 1 is characterized in that: described pottery sand is the mixture through any or they of the lytag of screening and rock matter haydite.
7, a kind of mortar special for light insulating brick construction according to claim 1 is characterized in that: described cement is that strength grade is 42.5 ordinary Portland cement or slag cement.
8, a kind of preparation method of mortar special for light insulating brick construction is characterized in that it may further comprise the steps: 1) flyash, sand, pottery sand, wilkinite, dry hydrate, ether of cellulose, cement are passed through mechanical uniform mixing respectively by weight; 2) perlite is added by weight, once more by mechanical uniform mixing; 3) mortar that mixes is packed by norm.
CN2009100612223A 2009-03-24 2009-03-24 Mortar special for light insulating brick construction and method of producing the same Expired - Fee Related CN101508543B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100612223A CN101508543B (en) 2009-03-24 2009-03-24 Mortar special for light insulating brick construction and method of producing the same

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Publication Number Publication Date
CN101508543A true CN101508543A (en) 2009-08-19
CN101508543B CN101508543B (en) 2012-02-01

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101637935B (en) * 2009-08-21 2011-02-16 李珠 Manufacturing method of inorganic insulating bearing building block
CN102312577A (en) * 2011-06-15 2012-01-11 盛富春 Storage, transportation and mixed preparation method for building mortar and special device thereof
CN102390960A (en) * 2011-08-08 2012-03-28 刘建全 Balcony hollow brick with pearlite pottery sand as aggregate for building
CN102418406A (en) * 2011-08-25 2012-04-18 信阳科美新型材料有限公司 Heat preservation decorative wall facing
CN103848602A (en) * 2014-02-10 2014-06-11 安徽众凯架业有限责任公司 Anti-aging thermal insulation mortar and production method thereof
CN103848597A (en) * 2014-02-10 2014-06-11 安徽众凯架业有限责任公司 Cheap and high-quality heat-preserving mortar and production method thereof
CN103848600A (en) * 2014-02-10 2014-06-11 安徽众凯架业有限责任公司 Antibacterial deinsectizing thermal mortar and preparation method thereof
CN103864358A (en) * 2014-02-10 2014-06-18 安徽众凯架业有限责任公司 Scoria thermal insulation mortar and preparation method thereof
CN103864363A (en) * 2014-02-10 2014-06-18 安徽众凯架业有限责任公司 Corrosion-resistant thermal insulation mortar and manufacturing method thereof
CN103864392A (en) * 2014-02-10 2014-06-18 安徽众凯架业有限责任公司 Green and environment-friendly thermal insulation mortar and manufacture method thereof
CN103864361A (en) * 2014-02-10 2014-06-18 安徽众凯架业有限责任公司 Mildew-proof sterilization type thermal insulation mortar and preparation method thereof
CN103880369A (en) * 2014-02-10 2014-06-25 安徽众凯架业有限责任公司 Traditional Chinese medicine residue heat preserving mortar and preparation method thereof
CN103880347A (en) * 2014-02-10 2014-06-25 安徽众凯架业有限责任公司 Mordenite thermal mortar and manufacture method thereof
CN104291743A (en) * 2014-07-24 2015-01-21 陶叶斌 Ceramic-tile bonding mortar and preparation method thereof
CN104386980A (en) * 2014-10-24 2015-03-04 河南兴安新型建筑材料有限公司 Masonry mortar for autoclaved aerated concrete
CN105198297A (en) * 2015-09-30 2015-12-30 安徽坤隆新型建材有限公司 Low-shrinkage mortar for aerated bricks
CN105271988A (en) * 2015-09-30 2016-01-27 安徽坤隆新型建材有限公司 Novel low-shrinkage mortar for air-entrained bricks
CN105541227A (en) * 2015-12-25 2016-05-04 河南兴安新型建筑材料有限公司 Yellow River sand masonry thermal-insulation mortar and preparation method of Yellow River sand masonry thermal-insulation mortar
CN108751867A (en) * 2018-07-19 2018-11-06 武汉市盘龙明达建筑有限公司 A kind of inorganic heat preservation masonry dry powder mortar and its application method
CN109422496A (en) * 2017-08-28 2019-03-05 江苏双建新型建材科技有限公司 A kind of light mortar and preparation method thereof
CN111718165A (en) * 2020-06-22 2020-09-29 山东京博环保材料有限公司 Wet-mixed mortar doped with ceramic sand fine aggregate and preparation method thereof
CN115403351A (en) * 2022-09-09 2022-11-29 宋柏成 High-strength composite thermal-insulation masonry mortar

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101182178B (en) * 2007-11-29 2011-05-18 武汉莱克利安科技有限公司 Special masonry mortar for self-insulating wall

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101637935B (en) * 2009-08-21 2011-02-16 李珠 Manufacturing method of inorganic insulating bearing building block
CN102312577A (en) * 2011-06-15 2012-01-11 盛富春 Storage, transportation and mixed preparation method for building mortar and special device thereof
CN102312577B (en) * 2011-06-15 2013-05-08 盛富春 Storage, transportation and mixed preparation method for building mortar and special device thereof
CN102390960A (en) * 2011-08-08 2012-03-28 刘建全 Balcony hollow brick with pearlite pottery sand as aggregate for building
CN102418406A (en) * 2011-08-25 2012-04-18 信阳科美新型材料有限公司 Heat preservation decorative wall facing
CN102418406B (en) * 2011-08-25 2014-05-14 信阳科美新型材料有限公司 Heat preservation decorative wall facing
CN103864361A (en) * 2014-02-10 2014-06-18 安徽众凯架业有限责任公司 Mildew-proof sterilization type thermal insulation mortar and preparation method thereof
CN103848600B (en) * 2014-02-10 2016-08-17 安徽众凯架业有限责任公司 A kind of antibacterial deinsectization thermal insulation mortar and preparation method thereof
CN103848600A (en) * 2014-02-10 2014-06-11 安徽众凯架业有限责任公司 Antibacterial deinsectizing thermal mortar and preparation method thereof
CN103864358A (en) * 2014-02-10 2014-06-18 安徽众凯架业有限责任公司 Scoria thermal insulation mortar and preparation method thereof
CN103864363A (en) * 2014-02-10 2014-06-18 安徽众凯架业有限责任公司 Corrosion-resistant thermal insulation mortar and manufacturing method thereof
CN103864392A (en) * 2014-02-10 2014-06-18 安徽众凯架业有限责任公司 Green and environment-friendly thermal insulation mortar and manufacture method thereof
CN103848602A (en) * 2014-02-10 2014-06-11 安徽众凯架业有限责任公司 Anti-aging thermal insulation mortar and production method thereof
CN103880369A (en) * 2014-02-10 2014-06-25 安徽众凯架业有限责任公司 Traditional Chinese medicine residue heat preserving mortar and preparation method thereof
CN103880347A (en) * 2014-02-10 2014-06-25 安徽众凯架业有限责任公司 Mordenite thermal mortar and manufacture method thereof
CN103848597A (en) * 2014-02-10 2014-06-11 安徽众凯架业有限责任公司 Cheap and high-quality heat-preserving mortar and production method thereof
CN103864358B (en) * 2014-02-10 2016-08-17 安徽众凯架业有限责任公司 A kind of scoria thermal insulation mortar and preparation method thereof
CN103864361B (en) * 2014-02-10 2016-08-17 安徽众凯架业有限责任公司 A kind of antimycotic antiseptic type thermal insulation mortar and preparation method thereof
CN104291743A (en) * 2014-07-24 2015-01-21 陶叶斌 Ceramic-tile bonding mortar and preparation method thereof
CN104386980A (en) * 2014-10-24 2015-03-04 河南兴安新型建筑材料有限公司 Masonry mortar for autoclaved aerated concrete
CN105271988A (en) * 2015-09-30 2016-01-27 安徽坤隆新型建材有限公司 Novel low-shrinkage mortar for air-entrained bricks
CN105198297A (en) * 2015-09-30 2015-12-30 安徽坤隆新型建材有限公司 Low-shrinkage mortar for aerated bricks
CN105541227A (en) * 2015-12-25 2016-05-04 河南兴安新型建筑材料有限公司 Yellow River sand masonry thermal-insulation mortar and preparation method of Yellow River sand masonry thermal-insulation mortar
CN109422496A (en) * 2017-08-28 2019-03-05 江苏双建新型建材科技有限公司 A kind of light mortar and preparation method thereof
CN108751867A (en) * 2018-07-19 2018-11-06 武汉市盘龙明达建筑有限公司 A kind of inorganic heat preservation masonry dry powder mortar and its application method
CN111718165A (en) * 2020-06-22 2020-09-29 山东京博环保材料有限公司 Wet-mixed mortar doped with ceramic sand fine aggregate and preparation method thereof
CN115403351A (en) * 2022-09-09 2022-11-29 宋柏成 High-strength composite thermal-insulation masonry mortar

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