CN110078445A - A kind of high-strength insulation full lightweight concrete and its preparation method and application - Google Patents
A kind of high-strength insulation full lightweight concrete and its preparation method and application Download PDFInfo
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- CN110078445A CN110078445A CN201910373049.4A CN201910373049A CN110078445A CN 110078445 A CN110078445 A CN 110078445A CN 201910373049 A CN201910373049 A CN 201910373049A CN 110078445 A CN110078445 A CN 110078445A
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- lightweight concrete
- full lightweight
- water
- haydite
- strength insulation
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to building material technical fields, and in particular to a kind of high-strength insulation full lightweight concrete and its preparation method and application.It by weight include following components: ordinary portland cement 10-30; II grades of flyash 4-10; 5-10 parts of graining blast-furnace cinder micro-powder, modified vitrification micro-bead 1-6, foaming agent: 0.1~2.5; thickener: 0.2~1.0; water-retaining agent 0.06-0.08, water 10-20, polypropylene fibre 0.08-0.1; haydite 20-35, pottery sand 1-26.9.The present invention carries out surface modification treatment to glass bead, and then prepare the full lightweight concrete of superior performance mainly using haydite, glass bead as coarse-fine aggregate.This product thermal insulation property is good, and intensity is higher, it is significantly improved than the full lightweight concrete strength of materials that haydite perlite is prepared, decreases drastically than the full lightweight concrete material thermal conductivity that ceramsite and ceramic sand is prepared, be applicable to be used as structural thermal insulation lightweight aggregate concrete material.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of high-strength insulation full lightweight concrete and its preparation side
Method and application.
Background technique
Full lightweight concrete is the lightweight aggregate concrete being formulated with light coarse aggregate, light fine aggregate, cementitious material and water.Knot
Structure heat preservation full lightweight concrete dry apparent density be the 400kg/m3 of 800kg/m3~1, strength grade be generally LC7.5, LC10,
LC15.In the dry state thermal coefficient be 0.23W/ (mK)~0.49W/ (mK), 1~7 times lower than normal concrete.It adopts
With the Side fascia of the alkaline earth haydite full lightweight concrete (density is 1 200kg/m3) of 28cm thickness, thermal resistance value is equivalent to 49cm brick
Wall.Full lightweight concrete is one kind not only load-bearing but also material kept the temperature.The national full lightweight concrete such as Europe, the U.S. makees wallboard, roof
Plate, small-sized hollow building block etc. are applied in high-rise and long span building.China is since the 1990s just in industry and the people
With popularization and application full lightweight concrete wallboard in building.Such as the plug-in full lightweight concrete wallboard of industrial premises, inner deposited and outer hung it is civilian
Building exterior wall panel, the exterior-wall heat insulation wallboard etc. of full assembly building.Thereafter many research achievements and engineering practice also demonstrates complete light
The good result that concrete is applied on architectural engineering load bearing heat preserving enclosed structure.
In full lightweight concrete building flooring and the research of layering floor heat insulating work and application process, there are several keys
Problem, the 1. contradiction of intensity and density.In general intensity is higher, and density is bigger, so that thermal coefficient is bigger, heat insulation property
It can be poorer.2. in full lightweight concrete work progress, bonding poor problem with structure sheaf base, full lightweight concrete light-weight aggregate floating is asked
Topic, compacting receipts face difficult problem.3. crack hollowing problem after hardening.
Summary of the invention
In view of this, the purpose of the present invention is prepare a kind of high-strength insulation full lightweight concrete.The high-strength insulation coagulation
Soil solves the contradiction of full lightweight concrete intensity and density, and heat insulation effect is good, and eliminates and be laid with steel fabric sheet and microlith coagulation
This two procedures of protective soil layer, construction workability are functional.
The purpose of the present invention is what is realized by following technological means: a kind of high-strength insulation full lightweight concrete, by weight
Part includes following components: 10-30, II grades of flyash 4-10 of ordinary portland cement, are modified by 5-10 parts of graining blast-furnace cinder micro-powder
Glass bead 1-6, foaming agent: 0.1~2.5, thickener: 0.2~1.0, water-retaining agent 0.06-0.08, water 10-20, polypropylene are fine
Tie up 0.08-0.1, haydite 20-35, pottery sand 1-26.9.
The modified vitrification micro-bead is using the modified glass bead of organosilicon moisture repellent；The partial size of modified vitrification micro-bead
For 0.5~1.5mm.
The modified vitrification micro-bead is prepared by following proposal: organosilicon moisture repellent is organic in mass ratio with water
Silicon hydrophober: water=1:50~100 are uniformly mixed and obtain hydrophobic agent solution, and hydrophobic agent solution and glass bead are then pressed quality
Than for 1.1-1.2:1 even application to glass bead surface, drying obtains modified vitrification micro-bead.
The hydrophober is selected from methane-siliconic acid salt hydrophober, silane and mixture of siloxanes class hydrophober, pure silicon alkanes
One of hydrophober, the methane-siliconic acid salt hydrophober are preferably sodium methyl silicate or potassium methyl silicate or methane-siliconic acid.
The haydite is that partial size is 5~10mm leca.
The haydite is the haydite of saturated dry surface.In the actual operation process, the haydite of saturated dry surface is logical
Cross following methods preparation:
Haydite is prewetted and is spread out on burlap afterwards for 24 hours, Indoor Natural is placed on and air-dries to saturated dry surface.
The pottery sand is Coal gangue pottery sand or shale pottery, and accumulation bulk density is 350~900kg/m3, partial size 0.4mm
~5mm.
The thickener is that (trade mark is for a kind of hydroxypropyl methyl cellulose ether of Tao Shi cellulose ether product
HPMC4000S), viscosity is 25000~45000mPas.
The foaming agent is polyethoxylated fatty alcohols.
The water-retaining agent is cellulose ether.
The length of the polypropylene fibre is 10-20mm.The polypropylene fibre is the isotactic obtained with polypropylene polymerization
Polypropylene is synthetic fibers made of raw material is imitated.Polypropylene fibre has the advantage that density is 0.90-0.92g/cm3,
It is most light in all chemical fibres；Intensity is high, elasticity is good, wear-resisting, good corrosion resistance, and intensity is similar to terylene and polyamide fibre；It is resistance to
Chemicals are better than general fiber；With electrical insulating property and warmth retention property.Polypropylene fibre can be divided into long fibre, staple fiber, spinning
Bonded non-woven fabrics, melt spraying non-woven fabrics etc..Polypropylene fibre is held with splendid dispersibility in concrete and with cement matrix
Power is wrapped up in, and ageing resistance is good, it is ensured that play effect for a long time in concrete.
The second object of the present invention is to provide a kind of preparation method of high-strength insulation full lightweight concrete, and the preparation method is such as
Under:
A, dry after first prewetting with the haydite that takes, obtain after the haydite of saturated dry surface with take pottery sand, modification
Glass bead is uniformly mixed,
B, the ordinary portland cement taken will be matched, II grades of flyash, graining blast-furnace cinder micro-powder, thickener, water-retaining agent, gathered
Tacryl is mixed evenly；
C, according still further to water, foaming agent needed for ingredient, sequentially add in B, continue stirring 10~15 minutes, it is mixed to obtain pulpous state
Close material；
D, the pulpous state mixture for obtaining step C is added in A, stirs 20~35 minutes, obtains complete light self-insulating concrete.
The third object of the present invention, which also resides in, provides the high-strength insulation full lightweight concrete in building flooring or layering
Application in floor insulating layer.
Beneficial effects of the present invention:
The present invention carries out surface modification treatment to glass bead mainly using haydite, glass bead as coarse-fine aggregate, into
And prepare the full lightweight concrete of superior performance.This product thermal insulation property is good, and intensity is higher, prepares than haydite perlite
The full lightweight concrete strength of materials out is significantly improved, and has than the full lightweight concrete material thermal conductivity that ceramsite and ceramic sand is prepared
Apparent decline is applicable to be used as structural thermal insulation lightweight aggregate concrete material.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below.
A kind of high-strength insulation full lightweight concrete includes following components: ordinary portland cement 10-30, II by weight
Grade flyash 4-10,5-10 parts of graining blast-furnace cinder micro-powder, modified vitrification micro-bead 1-6, foaming agent: 0.1~2.5, thickener:
0.2~1.0, water-retaining agent 0.06-0.08, water 10-20, polypropylene fibre 0.08-0.1, haydite 20-35, pottery sand 1-26.9.
The cement is powdery hydraulicity inorganic coagulation material.At slurry after adding water and stirring, can harden in air or
Preferably hardening in water, and can the materials such as sand, stone are cemented together securely.The flyash is from the cigarette after coal combustion
The fine ash that catching is got off in gas, flyash are the primary solids wastes of coal-burning power plant's discharge.Power plants flyash it is main
Oxide composition are as follows: SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2 etc..II grades of flyash are especially suitable for preparing pumped concrete
Soil, mass concrete, impervious structural concrete, sulfate resistance concrete and anti-soft water corrosion concrete and underground, underwater work
Journey concrete, prepakt concrete and grinding coagulation soil etc..
The modified vitrification micro-bead is using the modified glass bead of organosilicon moisture repellent；The partial size of modified vitrification micro-bead
For 0.5~1.5mm.
The modified vitrification micro-bead is prepared by following proposal: organosilicon moisture repellent is organic in mass ratio with water
Silicon hydrophober: water=1:50~100 are uniformly mixed and obtain hydrophobic agent solution, and hydrophobic agent solution and glass bead are then pressed quality
Than for 1.1-1.2:1 even application to glass bead surface, drying obtains modified vitrification micro-bead.
The hydrophober is selected from methane-siliconic acid salt hydrophober, silane and mixture of siloxanes class hydrophober, pure silicon alkanes
One of hydrophober, the methane-siliconic acid salt hydrophober are preferably sodium methyl silicate or potassium methyl silicate or methane-siliconic acid.
The haydite is that partial size is 5~10mm leca.
The haydite is the haydite of saturated dry surface.In the actual operation process, the haydite of saturated dry surface is logical
Cross following methods preparation:
Haydite is prewetted and is spread out on burlap afterwards for 24 hours, Indoor Natural is placed on and air-dries to saturated dry surface.
The pottery sand is Coal gangue pottery sand or shale pottery, and accumulation bulk density is 350~900kg/m3, partial size 0.4mm
~5mm.
The thickener is that (trade mark is for a kind of hydroxypropyl methyl cellulose ether of Tao Shi cellulose ether product
HPMC4000S), viscosity is 25000~45000mPas.
The foaming agent is polyethoxylated fatty alcohols.
The water-retaining agent is cellulose ether.
The length of the polypropylene fibre is 10-20mm.The polypropylene fibre is the isotactic obtained with polypropylene polymerization
Polypropylene is synthetic fibers made of raw material is imitated.Polypropylene fibre has the advantage that density is 0.90-0.92g/cm3,
It is most light in all chemical fibres；Intensity is high, elasticity is good, wear-resisting, good corrosion resistance, and intensity is similar to terylene and polyamide fibre；It is resistance to
Chemicals are better than general fiber；With electrical insulating property and warmth retention property.Polypropylene fibre can be divided into long fibre, staple fiber, spinning
Bonded non-woven fabrics, melt spraying non-woven fabrics etc..Polypropylene fibre is held with splendid dispersibility in concrete and with cement matrix
Power is wrapped up in, and ageing resistance is good, it is ensured that play effect for a long time in concrete.
Embodiment 1:
A kind of high-strength insulation full lightweight concrete includes following components: ordinary portland cement 30, II grades of powder by weight
Coal ash 5,6 parts of graining blast-furnace cinder micro-powder, modified vitrification micro-bead 5, foaming agent: 2, thickener: 0.5, water-retaining agent 0.06, water 15,
Polypropylene fibre 0.08, haydite 30, pottery sand 10.
A, dry after first prewetting with the haydite that takes, obtain after the haydite of saturated dry surface with take pottery sand, modification
Glass bead is uniformly mixed,
B, the ordinary portland cement taken will be matched, II grades of flyash, graining blast-furnace cinder micro-powder, thickener, water-retaining agent, gathered
Tacryl is mixed evenly；
C, according still further to water, foaming agent needed for ingredient, sequentially add in B, continue stirring 12 minutes, obtain pulpous state mixing
Material；
D, the pulpous state mixture for obtaining step C is added in A, stirs 25 minutes, obtains complete light self-insulating concrete.
Embodiment 2:
A kind of high-strength insulation full lightweight concrete includes following components: ordinary portland cement 25, II grades of powder by weight
Coal ash 10,6 parts of graining blast-furnace cinder micro-powder, modified vitrification micro-bead 6, foaming agent: 2.5, thickener: 0.6, water-retaining agent 0.08, water
15, polypropylene fibre 0.08, haydite 30, pottery sand 20.
A, dry after first prewetting with the haydite that takes, obtain after the haydite of saturated dry surface with take pottery sand, modification
Glass bead is uniformly mixed；
B, the ordinary portland cement taken will be matched, II grades of flyash, graining blast-furnace cinder micro-powder, thickener, water-retaining agent, gathered
Tacryl is mixed evenly；
C, according still further to water, foaming agent needed for ingredient, sequentially add in B, continue stirring 15 minutes, obtain pulpous state mixing
Material；
D, the pulpous state mixture for obtaining step C is added in A, stirs 35 minutes, obtains complete light self-insulating concrete.
Although the present invention has been described by way of example and in terms of the preferred embodiments, it is not intended to limit the invention, any to be familiar with this skill
The people of art can do various change and modification, therefore protection model of the invention without departing from the spirit and scope of the present invention
Enclosing subject to the definition of the claims.
Claims (10)
1. a kind of high-strength insulation full lightweight concrete, it is characterised in that: by weight include following components: ordinary portland cement
10-30, II grades of flyash 4-10,5-10 parts of graining blast-furnace cinder micro-powder, modified vitrification micro-bead 1-6, foaming agent: 0.1~2.5,
Thickener: 0.2~1.0, water-retaining agent 0.06-0.08, water 10-20, polypropylene fibre 0.08-0.1, haydite 20-35, pottery sand 1-
26.9。
2. a kind of high-strength insulation full lightweight concrete according to claim 1, it is characterised in that: the modified vitrification micro-bead
To use the modified glass bead of organosilicon moisture repellent；The partial size of modified vitrification micro-bead is 0.5~1.5mm.
3. a kind of high-strength insulation full lightweight concrete according to claim 2, it is characterised in that: described modified vitreous micro-
Pearl is prepared by following proposal:
By organosilicon moisture repellent and water organosilicon moisture repellent in mass ratio: water=1:50~100 are uniformly mixed to obtain hydrophober molten
Then hydrophobic agent solution and glass bead be 1.1-1.2:1 even application to glass bead surface, dried by liquid in mass ratio,
Obtain modified vitrification micro-bead.
4. a kind of high-strength insulation full lightweight concrete according to claim 3, it is characterised in that: the hydrophober is selected from first
One of base silicates hydrophober, silane and mixture of siloxanes class hydrophober, pure silicon alkanes hydrophober, the methyl silicon
Barbiturates hydrophober is preferably sodium methyl silicate or potassium methyl silicate or methane-siliconic acid.
5. a kind of high-strength insulation full lightweight concrete according to claim 1, it is characterised in that: the haydite is that partial size is
5~10mm leca；The pottery sand is Coal gangue pottery sand or shale pottery, and accumulation bulk density is 350~900kg/m3, partial size
For 0.4mm~5mm.
6. a kind of high-strength insulation full lightweight concrete according to claim 1, it is characterised in that: the thickener is Tao Shi
A kind of hydroxypropyl methyl cellulose ether of cellulose ether product, viscosity are 25000~45000mPas.
7. a kind of high-strength insulation full lightweight concrete according to claim 1, it is characterised in that: the foaming agent is poly- second
Oxygroup fatty alcohol.
8. a kind of high-strength insulation full lightweight concrete according to claim 1, it is characterised in that: the water-retaining agent is fiber
Plain ether.
9. a kind of high-strength insulation full lightweight concrete according to claim 1, it is characterised in that: high-strength insulation gently mixes entirely
Solidifying soil specific the preparation method is as follows:
A, dry after first prewetting with the haydite that takes, obtain after the haydite of saturated dry surface with match the pottery sand taken, modified vitreous
Microballon is uniformly mixed；
It B, will be with ordinary portland cement, II grades of flyash, graining blast-furnace cinder micro-powder, thickener, water-retaining agent, the polypropylene taken
Fiber is mixed evenly；
C, according still further to water, foaming agent needed for ingredient, sequentially add in B, continue stirring 10~15 minutes, obtain pulpous state mixing
Material；
D, the pulpous state mixture for obtaining step C is added in A, stirs 20~35 minutes, obtains complete light self-insulating concrete.
10. the high-strength insulation full lightweight concrete in a kind of claim 1 is in building flooring or layering floor insulating layer
Using.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590296A (en) * | 2019-10-30 | 2019-12-20 | 成都新柯力化工科技有限公司 | Lightweight concrete building material and preparation method thereof |
| CN112723844A (en) * | 2020-12-28 | 2021-04-30 | 南京交通职业技术学院 | Light plant-growing type porous concrete prefabricated part and preparation method thereof |
| CN113250372A (en) * | 2021-01-27 | 2021-08-13 | 浙江大东吴建筑科技有限公司 | Preparation method of novel light external wall panel |
| CN113480270A (en) * | 2021-08-16 | 2021-10-08 | 陕西丰盛德远实业有限公司 | Lightweight aggregate concrete and preparation method thereof |
| CN116283160A (en) * | 2023-05-17 | 2023-06-23 | 潍坊交安公路工程有限公司 | Preparation method of light high-strength concrete |
| CN117658564A (en) * | 2024-02-01 | 2024-03-08 | 山东黄金矿业股份有限公司新城金矿 | Modified ceramsite heat-insulating support material and preparation method thereof |
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| US20170283319A1 (en) * | 2016-03-30 | 2017-10-05 | King Fahd University Of Petroleum And Minerals | Structural lightweight concrete with superior thermal insulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110590296A (en) * | 2019-10-30 | 2019-12-20 | 成都新柯力化工科技有限公司 | Lightweight concrete building material and preparation method thereof |
| CN112723844A (en) * | 2020-12-28 | 2021-04-30 | 南京交通职业技术学院 | Light plant-growing type porous concrete prefabricated part and preparation method thereof |
| CN113250372A (en) * | 2021-01-27 | 2021-08-13 | 浙江大东吴建筑科技有限公司 | Preparation method of novel light external wall panel |
| CN113480270A (en) * | 2021-08-16 | 2021-10-08 | 陕西丰盛德远实业有限公司 | Lightweight aggregate concrete and preparation method thereof |
| CN116283160A (en) * | 2023-05-17 | 2023-06-23 | 潍坊交安公路工程有限公司 | Preparation method of light high-strength concrete |
| CN116283160B (en) * | 2023-05-17 | 2023-09-01 | 潍坊交安公路工程有限公司 | Preparation method of light high-strength concrete |
| CN117658564A (en) * | 2024-02-01 | 2024-03-08 | 山东黄金矿业股份有限公司新城金矿 | Modified ceramsite heat-insulating support material and preparation method thereof |
| CN117658564B (en) * | 2024-02-01 | 2024-04-09 | 山东黄金矿业股份有限公司新城金矿 | Modified ceramsite heat-insulating support material and preparation method thereof |
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Application publication date: 20190802 |