CN110344521A - A kind of construction method of construction wall - Google Patents
A kind of construction method of construction wall Download PDFInfo
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- CN110344521A CN110344521A CN201910623051.2A CN201910623051A CN110344521A CN 110344521 A CN110344521 A CN 110344521A CN 201910623051 A CN201910623051 A CN 201910623051A CN 110344521 A CN110344521 A CN 110344521A
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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
-
- 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
- C04B28/14—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 calcium sulfate cements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/644—Damp-proof courses
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—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
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of construction methods of construction wall; belong to construction engineering technical field; the construction method includes cleaning base, surveying setting-out; construct template; it is armor coated; damp-proof layer is perfused; mixed slurry is perfused; protective layer overcoating and wall maintenance, by improving the raw material of protective layer and the raw material and preparation method of preparation method and mixed slurry, and then build wall; this method is simple, convenient; it is capable of providing a kind of resistance to compression, the good construction wall of freeze proof and water resistance, waste resource recovery utilization is realized, meets environmentally protective requirement.
Description
Technical field
The invention belongs to construction engineering technical fields, and in particular to a kind of construction method of construction wall.
Background technique
Construction wall mainly plays a part of to go along with sb. to guard him, the compartment needs to consider going along with sb. to guard him, holding for wall usually in design
The factors such as weight, energy conservation and beauty, and then the construction method of reasonable design wall, and with the continuous development of building trade, it is right
It is increasingly improved in the quality requirement of wall, the construction method of wall is got the attention.In recent years, construction wall often due to
Construction method and raw material problem, and then there are construction methods that the performances such as complicated, at high cost and heatproof, weather-proof, resistance to compression are weaker
The problems such as, so that hollowing occurs after undergoing multiple bad weather, cracks, fall off for wall, or even generation the problems such as collapsing.Needle
To problems, usually the construction technology of wall is optimized or is found suitable wall constructed material avoid or reduce it is such
The generation of problem.
Chinese patent CN201710501063.9 discloses a kind of construction wall construction method, including surveying setting-out, builds
Kan Tai, built-in fitting, building wall, wall reinforcement, floorslab concrete construction, the indwelling of construction joint and processing, wall and building are laid with
Plate is reinforced and external wall plastering, the invention propose corresponding solution, cost in terms of quality of materials, technology, construction technology
It is cheap, it can be improved the masonry stability and construction quality of construction wall.But this method is in contrast complex, and builds
Wall heatproof, weatherability out is relatively weak.
Chinese patent CN201610728146.7 discloses a kind of construction wall integral pouring material and construction method, this is poured
The construction method for building material includes that raw material is uniformly mixing to obtain to mixed powder material, erects template and reserves injected hole, in template
Mixed powder and additive are added water and stirred into thin slurry and inject die cavity by side all standing agricultural plastic film, cold to slurry
But demoulding after retains the agricultural plastic film being covered on wall on the inside of template when demoulding, conserves to wall, construction method
Simply, without vibration and tamping, final set, that is, collapsible die maintenance is at low cost, is worthy to be popularized.But agripast used in this method
Film will cause the wastes and pollution of resource to a certain extent after the completion of wall conserves, especially when construction wall project amount compared with
When big, if not can control the subsequent collection of Archtectural Coatings, the generation of pollution residue problem will lead to.
For the problems such as difficulty of construction is big, at high cost existing for construction wall, a kind of construction party of construction wall should be found
Method so that the construction method is simple, at low cost, speed of application is fast, curing time is short, while can reach environmentally protective and want
It asks, the wall for achieving the purpose that resource utilization, and producing has good resistance to compression, freeze proof and water resistance, and then improves and build
The quality of walling body, the security and stability for improving construction wall.
Summary of the invention
In view of the problems of the existing technology the present invention, provides a kind of construction method of construction wall, this method is simple,
It is convenient, it is capable of providing a kind of resistance to compression, the good construction wall of freeze proof and water resistance, waste resource recovery utilization is realized, meets
Environmentally protective requirement.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of construction method of construction wall, comprising the following steps:
S1, cleaning base, surveying setting-out；
S2, building template；
It is S3, armor coated: armor coated in template inner surface；The raw material of the protective layer according to parts by weight, wraps
Include: 1-2 parts of flaxen fibers, 1-2 parts of polyester fibers, 0.2-0.4 parts of water-retaining agent, 40-50 parts of quartz sands, 15-20 parts of semi-hydrated gypsums,
0.05-0.09 parts of retarder, 5-8 parts of dehydrated alcohols and 36-42 parts of water；
S4, perfusion damp-proof layer: after layer to be protected is dry, damp-proof layer is poured into template；
S5, perfusion mixed slurry: mixed slurry is perfused after damp-proof layer is dry；The raw material of the mixed slurry is by weight
Number meter, comprising: 60-80 parts of cement, 25-40 parts of flyash, 100-120 parts of semi-hydrated gypsums, 5-10 parts of scums, 10-20 parts of stalks
With 5-10 parts of active carbons；
S6, protective layer overcoating: in half-dried surface of wall overcoating protective layer after demoulding；
S7, wall maintenance.
Further, building mould is arranged in base layer position according to actual requirement of engineering in building template described in step S2
Plate.
Further, protective layer described in step S3 includes: 1.2-1.8 parts of flaxen fibers, 1.2-1.8 parts according to parts by weight
Polyester fiber, 0.25-0.35 part water-retaining agent, 42-48 parts of quartz sands, 16-18 parts of semi-hydrated gypsums, 0.06-0.08 parts of retarder,
5.5-7 parts of dehydrated alcohols and 37-40 parts of water.
Preferably, protective layer described in step S3 include: according to parts by weight 1.5 parts of flaxen fibers, 1.5 parts of polyester fibers,
0.3 part of water-retaining agent, 45 parts of quartz sands, 17 parts of semi-hydrated gypsums, 0.07 part of retarder, 6 parts of dehydrated alcohols and 38 parts of water.
Further, the water-retaining agent is hydroxyethyl ether cellulose or methyl cellulose ether, and the retarder includes lemon
One of acid, tartaric acid and sodium tartrate are a variety of.
Further, protective layer described in step S3 with a thickness of 1-2mm.
Further, damp-proof layer described in step S4 includes cement mortar, waterproofing agent and active carbon；The cement mortar,
The weight ratio of waterproofing agent and active carbon is 85-92:3-5:1.
Further, damp-proof layer described in step S4 with a thickness of 15-22mm.
Further, mixed slurry described in step S5 is according to parts by weight, comprising: 65-75 parts of cement, 30-38 parts of powder
Coal ash, 105-115 part semi-hydrated gypsum, 6-8 parts of scums, 12-18 parts of stalks and 6-8 parts of active carbons.
Preferably, mixed slurry described in step S5 is according to parts by weight, comprising: 70 parts of cement, 35 parts of flyash, 110
Part semi-hydrated gypsum, 7 parts of scums, 15 parts of stalks and 7 parts of active carbons.
Further, the protective layer preparation method the following steps are included:
(1), semi-hydrated gypsum, quartz sand and retarder are stirred；
(2), water-retaining agent and dehydrated alcohol will be added after flaxen fiber and polyester fiber chopping, mixes and in 10-15 DEG C of condition
Lower constant temperature 5-10min；
(3), by material obtained in step (1) and step (2) and water be mixed to get.
Further, the mixing speed in step (1) and step (3) is 200-300rpm；It is shredded described in step (2),
Shredding length is 1-2cm.
Further, the mixed slurry preparation method the following steps are included: after stalk is crushed with active carbon, scum
Add water to mix and dry for the first time under the conditions of 70-90 DEG C, adds cement, flyash and semi-hydrated gypsum ball milling, mixed
Material, adds water and stirs for the second time to obtain the final product.
Further, the first time adds the amount of water of water and the weight ratio of stalk, active carbon, scum mixture to be 1:
0.3-0.5；The ratio between second of amount of water and mixture are 1:0.5-0.7；The ball milling, Ball-milling Time 20-30min,
Speed is 200rpm.
Further, protective layer overcoating described in step S6, protective layer thickness 2-6mm.
Further, wall described in step S7 conserves, and curing time is 5-7 days.
It is obtained by the present invention to have the technical effect that
1. construction method of the invention is simple, at low cost, speed of application is fast, curing time is short；
2. the wall resistance to compression that construction method of the invention is prepared, freeze proof, metope water resistance is preferable, possesses good quality
And security and stability.
3. the environmental protection materials such as flaxen fiber being employed herein, while also using flyash, scum and stalk etc. and is useless
Abandoning property raw material realizes waste resource recovery utilization, meets environmentally protective requirement.
Specific embodiment
It is worth noting that the raw material and equipment in the present invention are ordinary commercial products, therefore its source is not done and is had
Body limits, wherein iron content >=75% in scum.
Embodiment 1
A kind of construction method of construction wall, comprising the following steps:
S1, cleaning base, surveying setting-out；
S2, building template；
It is S3, armor coated: armor coated in template inner surface；The raw material of protective layer is according to parts by weight, comprising: 1
Part flaxen fiber, 1 part of polyester fiber, 0.2 part of hydroxyethyl ether cellulose, 40 parts of quartz sands, 15 parts of semi-hydrated gypsums, 0.05 portion of lemon
Acid, 5 parts of dehydrated alcohols and 36 parts of water；Protective layer thickness is 1mm；
The preparation method of the protective layer the following steps are included:
(1), semi-hydrated gypsum, quartz sand and retarder are stirred, mixing speed 200rpm；
(2), water-retaining agent and dehydrated alcohol are added after shredding flaxen fiber and polyester fiber to 1cm, mixes and in 10 DEG C of items
Constant temperature 5min under part；
(3), material obtained in step (1) and step (2) and water are mixed, mixing speed be 200rpm to get.
S4, perfusion damp-proof layer: after layer to be protected is dry, damp-proof layer is poured into template；The damp-proof layer includes cement bonded sand
Slurry, waterproofing agent and active carbon, three's weight ratio is 85:3:1, with a thickness of 15mm.
S5, perfusion mixed slurry: mixed slurry is perfused after damp-proof layer is dry；The raw material of mixed slurry is in parts by weight
Meter, comprising: 60 parts of cement, 25 parts of flyash, 100 parts of semi-hydrated gypsums, 5 parts of scums, 10 parts of stalks and 5 parts of active carbons；
The preparation method of the mixed slurry is the following steps are included: with active carbon, scum in 70 DEG C of conditions after stalk is crushed
Lower first time will add water to mix and dry, and add cement, flyash and semi-hydrated gypsum ball milling, wherein first time amount of water and straw
Stalk, active carbon, scum mixture weight ratio be 1:0.3, Ball-milling Time 20min, speed 200rpm obtain mixture,
It adds water and stirs for the second time to obtain the final product, wherein the ratio between second of amount of water and mixture are 1:0.5.
S6, protective layer overcoating: in half-dried surface of wall overcoating protective layer, protective layer thickness 2mm after demoulding；
S7, wall maintenance, curing time are 5 days.
Embodiment 2
A kind of construction method of construction wall, comprising the following steps:
S1, cleaning base, surveying setting-out；
S2, building template；
It is S3, armor coated: armor coated in template inner surface；The raw material of protective layer is according to parts by weight, comprising: 2
Part flaxen fiber, 2 parts of polyester fibers, 0.4 part of methyl cellulose ether, 50 parts of quartz sands, 20 parts of semi-hydrated gypsums, 0.09 part of tartaric acid, 8
Part dehydrated alcohol and 42 parts of water；Protective layer thickness is 2mm；
The preparation method of the protective layer the following steps are included:
(1), semi-hydrated gypsum, quartz sand and retarder are stirred, mixing speed 300rpm；
(2), water-retaining agent and dehydrated alcohol are added after shredding flaxen fiber and polyester fiber to 2cm, mixes and in 15 DEG C of items
Constant temperature 10min under part；
(3), material obtained in step (1) and step (2) and water are mixed, mixing speed be 300rpm to get.
S4, perfusion damp-proof layer: after layer to be protected is dry, damp-proof layer is poured into template；The damp-proof layer includes cement bonded sand
Slurry, waterproofing agent and active carbon, three's weight ratio is 92:5:1, with a thickness of 22mm.
S5, perfusion mixed slurry: mixed slurry is perfused after damp-proof layer is dry；The raw material of mixed slurry is in parts by weight
Meter, comprising: 80 parts of cement, 40 parts of flyash, 120 parts of semi-hydrated gypsums, 10 parts of scums, 20 parts of stalks and 10 parts of active carbons；
The preparation method of the mixed slurry is the following steps are included: with active carbon, scum in 90 DEG C of conditions after stalk is crushed
Lower first time will add water to mix and dry, and add cement, flyash and semi-hydrated gypsum ball milling, wherein first time amount of water and straw
Stalk, active carbon, scum mixture weight ratio be 1:0.5, Ball-milling Time 30min, speed 200rpm obtain mixture,
It adds water and stirs for the second time to obtain the final product, wherein the ratio between second of amount of water and mixture are 1:0.7.
S6, protective layer overcoating: in half-dried surface of wall overcoating protective layer, protective layer thickness 6mm after demoulding；
S7, wall maintenance, curing time are 7 days.
Embodiment 3
A kind of construction method of construction wall, comprising the following steps:
S1, cleaning base, surveying setting-out；
S2, building template；
It is S3, armor coated: armor coated in template inner surface；The raw material of protective layer is according to parts by weight, comprising:
1.5 parts of flaxen fibers, 1.5 parts of polyester fibers, 0.3 part of hydroxyethyl ether cellulose, 45 parts of quartz sands, 17 parts of semi-hydrated gypsums, 0.07 part
Sodium tartrate, 6 parts of dehydrated alcohols and 38 parts of water；Protective layer thickness is 1.5mm；
The preparation method of the protective layer the following steps are included:
(1), semi-hydrated gypsum, quartz sand and retarder are stirred, mixing speed 250rpm；
(2), water-retaining agent and dehydrated alcohol are added after shredding flaxen fiber and polyester fiber to 1cm, mixes and in 12 DEG C of items
Constant temperature 8min under part；
(3), material obtained in step (1) and step (2) and water are mixed, mixing speed be 250rpm to get.
S4, perfusion damp-proof layer: after layer to be protected is dry, damp-proof layer is poured into template；The damp-proof layer includes cement bonded sand
Slurry, waterproofing agent and active carbon, three's weight ratio is 90:4:1, with a thickness of 18mm.
S5, perfusion mixed slurry: mixed slurry is perfused after damp-proof layer is dry；The raw material of mixed slurry is in parts by weight
Meter, comprising: 70 parts of cement, 35 parts of flyash, 110 parts of semi-hydrated gypsums, 7 parts of scums, 15 parts of stalks and 7 parts of active carbons；
The preparation method of the mixed slurry is the following steps are included: with active carbon, scum in 80 DEG C of conditions after stalk is crushed
Lower first time will add water to mix and dry, and add cement, flyash and semi-hydrated gypsum ball milling, wherein first time amount of water and straw
Stalk, active carbon, scum mixture weight ratio be 1:0.4, Ball-milling Time 25min, speed 200rpm obtain mixture,
It adds water and stirs for the second time to obtain the final product, wherein the ratio between second of amount of water and mixture are 1:0.6.
S6, protective layer overcoating: in half-dried surface of wall overcoating protective layer, protective layer thickness 4mm after demoulding；
S7, wall maintenance, curing time are 6 days.
Embodiment 4
A kind of construction method of construction wall, comprising the following steps:
S1, cleaning base, surveying setting-out；
S2, building template；
It is S3, armor coated: armor coated in template inner surface；The raw material of protective layer is according to parts by weight, comprising:
1.2 parts of flaxen fibers, 1.2 parts of polyester fibers, 0.25 part of methyl cellulose ether, 42 parts of quartz sands, 16 parts of semi-hydrated gypsums, 0.06 part of weight
Amount is than the citric acid and tartaric acid, 5.5 parts of dehydrated alcohols and 37 parts of water for 1:1；Protective layer thickness is 1mm；
The preparation method of the protective layer the following steps are included:
(1), semi-hydrated gypsum, quartz sand and retarder are stirred, mixing speed 220rpm；
(2), water-retaining agent and dehydrated alcohol are added after shredding flaxen fiber and polyester fiber to 2cm, mixes and in 11 DEG C of items
Constant temperature 6min under part；
(3), material obtained in step (1) and step (2) and water are mixed, mixing speed be 220rpm to get.
S4, perfusion damp-proof layer: after layer to be protected is dry, damp-proof layer is poured into template；The damp-proof layer includes cement bonded sand
Slurry, waterproofing agent and active carbon, three's weight ratio is 88:3.5:1, with a thickness of 16mm.
S5, perfusion mixed slurry: mixed slurry is perfused after damp-proof layer is dry；The raw material of mixed slurry is in parts by weight
Meter, comprising: 65 parts of cement, 30 parts of flyash, 105 parts of semi-hydrated gypsums, 6 parts of scums, 12 parts of stalks and 6 parts of active carbons；
The preparation method of the mixed slurry is the following steps are included: with active carbon, scum in 75 DEG C of conditions after stalk is crushed
Lower first time will add water to mix and dry, and add cement, flyash and semi-hydrated gypsum ball milling, wherein first time amount of water and straw
Stalk, active carbon, scum mixture weight ratio be 1:0.35, Ball-milling Time 22min, speed 200rpm obtain mixture,
It adds water and stirs for the second time to obtain the final product, wherein the ratio between second of amount of water and mixture are 1:0.55.
S6, protective layer overcoating: in half-dried surface of wall overcoating protective layer, protective layer thickness 3mm after demoulding；
S7, wall maintenance, curing time are 5 days.
Embodiment 5
A kind of construction method of construction wall, comprising the following steps:
S1, cleaning base, surveying setting-out；
S2, building template；
It is S3, armor coated: armor coated in template inner surface；The raw material of protective layer is according to parts by weight, comprising:
1.8 parts of flaxen fibers, 1.8 parts of polyester fibers, 0.35 part of hydroxyethyl ether cellulose, 48 parts of quartz sands, 18 parts of semi-hydrated gypsums, 0.08 part
Weight ratio is the tartaric acid and sodium tartrate, 7 parts of dehydrated alcohols and 40 parts of water of 1:1；Protective layer thickness is 2mm；
The preparation method of the protective layer the following steps are included:
(1), semi-hydrated gypsum, quartz sand and retarder are stirred, mixing speed 280rpm；
(2), water-retaining agent and dehydrated alcohol are added after shredding flaxen fiber and polyester fiber to 1cm, mixes and in 13 DEG C of items
Constant temperature 9min under part；
(3), material obtained in step (1) and step (2) and water are mixed, mixing speed be 280rpm to get.
S4, perfusion damp-proof layer: after layer to be protected is dry, damp-proof layer is poured into template；The damp-proof layer includes cement bonded sand
Slurry, waterproofing agent and active carbon, three's weight ratio is 91:4.5:1, with a thickness of 20mm.
S5, perfusion mixed slurry: mixed slurry is perfused after damp-proof layer is dry；The raw material of mixed slurry is in parts by weight
Meter, comprising: 75 parts of cement, 38 parts of flyash, 115 parts of semi-hydrated gypsums, 8 parts of scums, 18 parts of stalks and 8 parts of active carbons；
The preparation method of the mixed slurry is the following steps are included: with active carbon, scum in 70-90 DEG C of item after stalk is crushed
Under part for the first time plus water mix and dries, add cement, flyash and semi-hydrated gypsum ball milling, wherein first time amount of water and
Stalk, active carbon, scum mixture weight ratio be 1:0.45, Ball-milling Time 28min, speed 200rpm are mixed
Material, adds water and stirs for the second time to obtain the final product, wherein the ratio between second of amount of water and mixture are 1:0.65.
S6, protective layer overcoating: in half-dried surface of wall overcoating protective layer, protective layer thickness 5mm after demoulding；
S7, wall maintenance, curing time are 7 days.
Comparative example 1
Difference with embodiment 3 is only that the raw material of protective layer is according to parts by weight, comprising: 0.8 part of flaxen fiber, 2.5 parts
Polyester fiber, 0.1 part of water-retaining agent, 55 parts of quartz sands, 12 parts of semi-hydrated gypsums, 0.1 part of retarder, 4 parts of dehydrated alcohols and 45 parts of water.
Comparative example 2
Difference with embodiment 3 is only that the raw material of protective layer is according to parts by weight, comprising: 2.2 parts of flaxen fibers, 0.8 part
Polyester fiber, 0.5 part of water-retaining agent, 35 parts of quartz sands, 22 parts of semi-hydrated gypsums, 0.04 part of retarder, 10 parts of dehydrated alcohols and 35 parts
Water.
Comparative example 3
Difference with embodiment 3 is only that the raw material of mixed slurry is according to parts by weight, comprising: 56 parts of cement, 42 parts of powder
Coal ash, 85 parts of semi-hydrated gypsums, 12 parts of scums, 8 parts of stalks and 12 parts of active carbons.
Comparative example 4
Difference with embodiment 3 is only that the raw material of mixed slurry is according to parts by weight, comprising: 85 parts of cement, 22 parts of powder
Coal ash, 125 parts of semi-hydrated gypsums, 3 parts of scums, 22 parts of stalks and 3 parts of active carbons.
Comparative example 5
Difference with embodiment 3 is only that, in the preparation method of mixed slurry, first time amount of water and stalk, active carbon,
The weight ratio of scum mixture is 1:0.1, and the ratio between second of amount of water and mixture are 1:0.2.
Comparative example 6
Difference with embodiment 3 is only that, in the preparation method of mixed slurry, first time amount of water and stalk, active carbon,
The weight ratio of scum mixture is 1:0.8, and the ratio between second of amount of water and mixture are 1:1.
Comparative example 7
Difference with embodiment 3 is only that, does not include step S3 and step S6.
One, freeze-thaw resistance is tested
Using the slow jelly method in GB/T50082-2009 " Standard for test methods of longterm performance and durability of ordinary concrete " point
Wall circulating freezing resistance 25 times and the 50th time freezing and thawing performances, obtain table 1 in other testing example 1-5 and comparative example 1-7.
1 wall freezing and thawing performance test result of table
As shown in Table 1, the freeze thawing test mass loss and loss of strength of materials for wall are smaller in embodiment 1-5, D25
With the mass loss rate of D50 respectively within the scope of 0.136-0.280% and 1.002-2.169%, the intensity of D25 and D50 are damaged
Mistake rate is respectively within the scope of 0.675-1.056% and 4.743-5.651%, wherein and each group of data in embodiment 3 is optimal,
Show that the wall in the present invention possesses good freezing and thawing performance.The mass loss rate and intensity of comparative example 1-2 and comparative example 5-6
Loss late is all larger than embodiment 1-5, and the mass loss rate of comparative example 3-4 and comparative example 7 is greater than embodiment 1-5, loss of strength rate
It is close with embodiment 1-5, show that the material content of protective layer, the material content of mixed slurry and construction method step influence
The freezing and thawing performance of wall, it is more excellent in the freezing and thawing performance of scope of the present invention inner wall.
Two, wall Water Resistance Test
Using in GB/T 4111-2013 " concrete segment and brick test method " testing example 1-5 and comparative example 1-7
The water resistance of wall obtains table 2.
As shown in Table 2, the gas of materials for wall does resistance to compression under compression strength and saturated dry surface under state in embodiment 1-5
Respectively within the scope of 20.26-25.45MPa and 20.68-26.54MPa, coefficient of softing meets intensity within the scope of 1.02-1.04
Coefficient of softing is not less than 0.85 requirement, wherein each group of data of embodiment 3 is optimal, shows that the materials for wall in the present invention is gathered around
There is good water resistance；The gas of comparative example 1-7 does under state that compression strength is respectively less than under compression strength and saturated dry surface
Embodiment 1-5, wherein the compression strength of comparative example 1-2 and comparative example 5-6 decreased significantly compared to embodiment 1-5, comparison
Example 3-4 and 7 gas of comparative example do state under compression strength it is approximate with embodiment 1-5, under saturated dry surface compression strength under
Drop, compression strength coefficient of softing is below 0.85.The above results show the material content of protective layer, the raw material of mixed slurry contains
Amount and construction method step affect the water resistance of wall, and the wall water resistance in the scope of the present invention is more excellent.
Finally it should be noted that the above content is merely illustrative of the technical solution of the present invention, rather than the present invention is protected
The limitation of range, the simple modification or equivalent replacement that those skilled in the art carry out technical solution of the present invention,
All without departing from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a kind of construction method of construction wall, it is characterised in that: the following steps are included:
S1, cleaning base, surveying setting-out；
S2, building template；
It is S3, armor coated: armor coated in template inner surface；The raw material of the protective layer is according to parts by weight, comprising: 1-
2 parts of flaxen fibers, 1-2 parts of polyester fibers, 0.2-0.4 parts of water-retaining agent, 40-50 parts of quartz sands, 15-20 parts of semi-hydrated gypsums, 0.05-
0.09 part of retarder, 5-8 parts of dehydrated alcohols and 36-42 parts of water；
S4, perfusion damp-proof layer: after layer to be protected is dry, damp-proof layer is poured into template；
S5, perfusion mixed slurry: mixed slurry is perfused after damp-proof layer is dry；The raw material of the mixed slurry is in parts by weight
Meter, comprising: 60-80 parts of cement, 25-40 parts of flyash, 100-120 parts of semi-hydrated gypsums, 5-10 parts of scums, 10-20 parts of stalks and
5-10 parts of active carbons；
S6, protective layer overcoating: in half-dried surface of wall overcoating protective layer after demoulding；
S7, wall maintenance.
2. construction method according to claim 1, it is characterised in that: protective layer described in step S3 wraps according to parts by weight
It includes: 1.2-1.8 parts of flaxen fibers, 1.2-1.8 parts of polyester fibers, 0.25-0.35 parts of water-retaining agent, 42-48 parts of quartz sands, 16-18 parts
Semi-hydrated gypsum, 0.06-0.08 part retarder, 5.5-7 parts of dehydrated alcohols and 37-40 parts of water.
3. construction method according to claim 1 or 2, it is characterised in that: the preparation method of the protective layer includes following
Step:
(1), semi-hydrated gypsum, quartz sand and retarder are stirred；
(2), water-retaining agent and dehydrated alcohol will be added after flaxen fiber and polyester fiber chopping, mixes and permanent under the conditions of 10-15 DEG C
Warm 5-10min；
(3), by material obtained in step (1) and step (2) and water be mixed to get.
4. construction method according to claim 1, it is characterised in that: damp-proof layer described in step S4 include cement mortar,
Waterproofing agent and active carbon.
5. construction method according to claim 4, it is characterised in that: the weight of the cement mortar, waterproofing agent and active carbon
Amount is than being 85-92:3-5:1.
6. construction method according to claim 1, it is characterised in that: damp-proof layer described in step S4 with a thickness of 15-
22mm。
7. construction method according to claim 1, it is characterised in that: mixed slurry described in step S5 is in parts by weight
Meter, comprising: 65-75 parts of cement, 30-38 parts of flyash, 105-115 parts of semi-hydrated gypsums, 6-8 parts of scums, 12-18 parts of stalks and 6-
8 parts of active carbons.
8. construction method according to claim 1 or claim 7, it is characterised in that: the preparation method of the mixed slurry include with
Lower step: add water to mix for the first time under the conditions of 70-90 DEG C with active carbon, scum after stalk is crushed and dry, add water
Mud, flyash and semi-hydrated gypsum ball milling, obtain mixture, add water and stir for the second time to obtain the final product.
9. construction method according to claim 8, it is characterised in that: the first time adds the amount of water and stalk, work of water
Property charcoal, scum mixture weight ratio be 1:0.3-0.5；The ratio between second of amount of water and mixture are 1:0.5-0.7.
10. construction method according to claim 1, it is characterised in that: the maintenance of wall described in step S7, curing time are
5-7 days.
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| CN110344521B (en) | 2020-10-09 |
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