CN105541227A - Yellow River sand masonry thermal-insulation mortar and preparation method of Yellow River sand masonry thermal-insulation mortar - Google Patents
Yellow River sand masonry thermal-insulation mortar and preparation method of Yellow River sand masonry thermal-insulation mortar Download PDFInfo
- Publication number
- CN105541227A CN105541227A CN201510995209.0A CN201510995209A CN105541227A CN 105541227 A CN105541227 A CN 105541227A CN 201510995209 A CN201510995209 A CN 201510995209A CN 105541227 A CN105541227 A CN 105541227A
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- China
- Prior art keywords
- river sand
- yellow river
- insulation mortar
- heat insulation
- cement
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Classifications
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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
- C04B28/04—Portland cements
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention belongs to the technical field of building materials and in particular relates to Yellow River sand masonry thermal-insulation mortar. The Yellow River sand masonry thermal-insulation mortar is prepared from cement, Yellow River sand, lightweight aggregates, a water-retaining agent, a thickening agent and a water reducing agent, wherein the sum of weight percent of the cement, the Yellow River sand and the lightweight aggregates is 100 percent: the cement accounts for 35 percent to 45 percent, the Yellow River sand accounts for 40 percent to 50 percent and the balance is the lightweight aggregates; the water reducing agent accounts for 0.05 percent to 0.15 percent of the sum of the weight of the cement, the Yellow River sand and the lightweight aggregates; the thickening agent accounts for 0 to 1 percent of the sum of the weight of the cement, the Yellow River sand and the lightweight aggregates; the water reducing agent accounts for 0 to 0.5 percent of the sum of the weight of the cement, the Yellow River sand and the lightweight aggregates. The Yellow River sand masonry thermal-insulation mortar provided by the invention has a relatively low heat conductivity coefficient and relatively high compressive strength and can be widely applied to a self-thermal-insulation system of an autoclaved aerated concrete wall body; structural safety and a thermal insulation effect of the wall body are guaranteed and a lot of Yellow River sand can be used at the same time, so that the resource utilization of the Yellow River sand is effectively realized.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of Yellow River Sand building heat insulation mortar and preparation method thereof.
Background technology
Autoclave aerated concrete building block is a kind of novel green materials for wall, compared with the materials for walls such as conventional clay, it has the advantages such as lightweight, sound insulation, insulation, energy-saving and environmental protection, and be the single materials for wall that minority can meet building energy conservation 65% requirement, there is wide market outlook and development space.But when adopting ordinary mortar to build by laying bricks or stones, gray seam thickness can reach 20mm, and huge mortar joint can form heat bridge at body of wall both sides transferring heat, seriously reduces the heat insulation effect of steam-pressing aero-concrete masonry panel.
For reducing the power loss that mortar joint causes, improving the heat insulation effect of body of wall, should building heat insulation mortar be adopted when building by laying bricks or stones autoclave aerated concrete building block, reducing the power loss that mortar joint causes.The thermal conductivity of building heat insulation mortar is lower than 0.19W/(mk), intensity is greater than 5.0MPa, builds the power loss that effectively can reduce mortar joint and bring by laying bricks or stones for steam-pressing aero-concrete masonry structure, improves wall thermal insulating effect.
The aglite being used for preparing building heat insulation mortar has pearlstone, expanded and vitrified small ball, expanded vermiculite, light ceramic etc. usually; but the general particle of these lagging materials is larger; and grain composition is poor; directly be used for produce thermal insulation mortar time workability and degree of compactness poor; cause intensity lower, and easily produce the phenomenons such as bleeding.Yellow River Sand particle is comparatively thin, and silt content and mud cake content higher, easily cause the serious quality problems such as segregation, bleeding, contraction, cracking, be difficult to be widely used as conventional building material.And the safety that the Yellow River Sand deposited in a large number is Yellow River Channel causes serious harm, and the accumulation of a large amount of the Yellow River fine sand also easily causes the severe weather phenomenons such as airborne dust, therefore needs badly and finds the use problem that a kind of method safely and effectively solves Yellow River Sand.
Summary of the invention
The object of the present invention is to provide one to utilize Yellow River Sand building heat insulation mortar and preparation method thereof, this building heat insulation mortar effectively can reduce the thermal conductivity of masonry mortar, reduces the power loss that mortar joint causes, really realizes wall self-insulation function.
For achieving the above object, the present invention adopts following technical scheme:
A kind of Yellow River Sand building heat insulation mortar, this building heat insulation mortar comprises cement, Yellow River Sand, aglite, water-holding agent, tackifier and water reducer; Wherein, cement, Yellow River Sand, aglite in weight percent sum for 100%: cement 35-45%, Yellow River Sand 40-50%, surplus is aglite; Water-holding agent accounts for the 0.05-0.15% of aforementioned three kinds of raw material weight sums, and tackifier account for the 0-1% of aforementioned three kinds of raw material weight sums; Water reducer accounts for the 0-0.5% of aforementioned three kinds of raw material weight sums.
Concrete, described cement is ordinary Portland cement.
Described Yellow River Sand silt content is less than 2%, and particle diameter is less than 0.6mm.
Described aglite is the inorganic heat preservation particles such as glass bead, pearlstone or haydite, particle diameter≤2.36mm, thermal conductivity 0.025-0.045W/(mk).
Described water-holding agent is cellulose ethers water-holding agent, as being methyl cellulose ether, hydroxypropyl methyl cellulose ether, ethoxyl methyl cellulose ether or hydroxyethyl ether cellulose etc.
Described tackifier are EVA redispersable latex powder; Described water reducer is polycarboxylic acid series high efficiency water reducing agent, water-reducing rate >=20%.
The preparation method of above-mentioned Yellow River Sand building heat insulation mortar, is specially: added in proportion by above-mentioned each raw material in drum-type or agravic formula stirrer and stir the dry mash that namely 3-5min can be made into this building heat insulation mortar, and then adding water stirs can use.
The particle fineness of Yellow River Sand is generally less than 0.6mm; and aglite is as relatively large in the particle diameter such as pearlstone or glass bead; and macrobead is relatively many; organic collocation of Yellow River Sand and aglite effectively can improve the grading of aggregate of mortar; improve the density of mortar; and can respective effect be played, the basis ensureing working strength greatly reduces the thermal conductivity of mortar.
Building heat insulation mortar thermal conductivity of the present invention is lower and ultimate compression strength is higher, with steam-pressing aero-concrete heat insulation building block with the use of the power loss that effectively can reduce mortar joint and bring, realizes wall self-insulation function.Simultaneously, this building heat insulation mortar utilizes the Yellow River fine sand in a large number, effectively achieve the recycling of Yellow River Sand, reduce a large amount of Yellow River Sand and to deposit the harm that Yellow River Channel and ambient weather conditions are brought, there is very large economic benefit, social benefit and environmental benefit.
Compared with prior art, the beneficial effect of building heat insulation mortar of the present invention:
1) the present invention is thicker mainly for traditional mortar mortar joint, easy formation heat bridge, serious reduction wall thermal insulating effect and the special building heat insulation mortar of steam-pressing aero-concrete heat insulation building block developed, effectively reduce mortar joint thermal conductivity, reduce power loss, with steam-pressing aero-concrete heat insulation building block with the use of really realizing wall self-insulation function;
2) the present invention by the heat-insulating light aggregates such as the Yellow River fine sand and glass bead with the use of; not only optimize grading of aggregate; reduce mortar porosity; improve mortar ultimate compression strength and impermeability etc.; but also the Yellow River fine sand can be utilized in a large number; effectively achieve the recycling of Yellow River Sand, there is very large economic benefit, social benefit and environmental benefit.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is further detailed, but protection scope of the present invention is not limited in this.
embodiment 1-3
Each raw material weight proportioning of Yellow River Sand building heat insulation mortar described in embodiment 1 to 3 refers to table 1, and wherein, described cement is ordinary Portland cement; Described Yellow River Sand silt content is less than 2%, and particle diameter is less than 0.6mm; Described tackifier are EVA redispersable latex powder; Described water reducer is polycarboxylic acid series high efficiency water reducing agent, water-reducing rate >=20%.
Aglite described in embodiment 1 is glass bead, and described water-holding agent is methyl cellulose ether; Aglite described in embodiment 2 is pearlstone, and described water-holding agent is hydroxypropyl methyl cellulose ether; Aglite described in embodiment 3 is haydite, and described water-holding agent is ethoxyl methyl cellulose ether.
The preparation method of Yellow River Sand building heat insulation mortar described in embodiment 1 to 3, is specially: get above-mentioned each raw material in proportion, join in drum-type mortar mixer, mixes (stirring 3-5min), namely can be made into the dry mash of this building heat insulation mortar.During use, the weight ratio (2.5-3) according to building heat insulation mortar and water: 1 adds water stirs 3-5min and can use.
Embodiment 1 to 3 gained Yellow River Sand building heat insulation mortar is carried out performance test with reference to " building mortar basic performance tests method " (JGJ70-2009) and " the mensuration Guarded hot plate of Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics " (GB/T10294-2008), and test result sees the following form 1.
In table 1 embodiment 1-3, the parts by weight of raw materials of building heat insulation mortar forms and the performance test results
Performance test data as can be seen from table 1: the properties detected result of building heat insulation mortar of the present invention all meets the relevant regulations of standard " building heat insulation mortar utilisation technology code " (DBJ/T120-2013) and " expanded and vitrified small ball light mortar " (JG/T283-2010).The higher ultimate compression strength of gained building heat insulation mortar can with steam-pressing aero-concrete heat insulation building block with the use of and ensure masonry strength; Lower thermal conductivity effectively can reduce the power loss that mortar joint brings, and with steam-pressing aero-concrete heat insulation building block with the use of realizing wall self-insulation function completely, effectively realizes effect of building energy conservation heat insulation.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.In every case be do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (7)
1. a Yellow River Sand building heat insulation mortar, is characterized in that, this building heat insulation mortar comprises cement, Yellow River Sand, aglite, water-holding agent, tackifier and water reducer; Wherein, cement, Yellow River Sand, aglite in weight percent sum for 100%: cement 35-45%, Yellow River Sand 40-50%, surplus is aglite; Water-holding agent accounts for the 0.05-0.15% of aforementioned three kinds of raw material weight sums, and tackifier account for the 0-1% of aforementioned three kinds of raw material weight sums; Water reducer accounts for the 0-0.5% of aforementioned three kinds of raw material weight sums.
2. Yellow River Sand building heat insulation mortar as claimed in claim 1, it is characterized in that, described cement is ordinary Portland cement.
3. Yellow River Sand building heat insulation mortar as claimed in claim 1, it is characterized in that, described Yellow River Sand silt content is less than 2%, and particle diameter is less than 0.6mm.
4. Yellow River Sand building heat insulation mortar as claimed in claim 1, it is characterized in that, described aglite is glass bead, pearlstone or haydite, particle diameter≤2.36mm, thermal conductivity 0.025-0.045W/(mk).
5. Yellow River Sand building heat insulation mortar as claimed in claim 1, it is characterized in that, described water-holding agent is cellulose ethers water-holding agent.
6. Yellow River Sand building heat insulation mortar as claimed in claim 1, it is characterized in that, described tackifier are EVA redispersable latex powder; Described water reducer is polycarboxylic acid series high efficiency water reducing agent, water-reducing rate >=20%.
7. one kind as arbitrary in claim 1 to 6 as described in the preparation method of Yellow River Sand building heat insulation mortar, it is characterized in that, added in proportion in stirrer by above-mentioned each raw material and stir the dry mash that namely 3-5min can be made into this building heat insulation mortar, then adding water stirs can use.
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| CN201510995209.0A CN105541227A (en) | 2015-12-25 | 2015-12-25 | Yellow River sand masonry thermal-insulation mortar and preparation method of Yellow River sand masonry thermal-insulation mortar |
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| CN201510995209.0A CN105541227A (en) | 2015-12-25 | 2015-12-25 | Yellow River sand masonry thermal-insulation mortar and preparation method of Yellow River sand masonry thermal-insulation mortar |
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| CN105541227A true CN105541227A (en) | 2016-05-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106007560A (en) * | 2016-05-18 | 2016-10-12 | 浙江益森科技股份有限公司 | Masonry mortar for autoclaved aerated concrete |
| CN106747148A (en) * | 2016-12-09 | 2017-05-31 | 常州工程职业技术学院 | Slag, carbide slag and haydite high-strength wall insulation material and preparation method thereof |
| CN111548102A (en) * | 2020-06-29 | 2020-08-18 | 郑州大学 | Mortar and preparation method and application thereof |
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| CN111548102A (en) * | 2020-06-29 | 2020-08-18 | 郑州大学 | Mortar and preparation method and application thereof |
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