CN113417438A - Construction method of crack-resistant inorganic thermal-insulation mortar terrace - Google Patents
Construction method of crack-resistant inorganic thermal-insulation mortar terrace Download PDFInfo
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- CN113417438A CN113417438A CN202110783051.6A CN202110783051A CN113417438A CN 113417438 A CN113417438 A CN 113417438A CN 202110783051 A CN202110783051 A CN 202110783051A CN 113417438 A CN113417438 A CN 113417438A
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- layer
- cement
- emulsion
- styrene
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 36
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000009413 insulation Methods 0.000 title claims description 4
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000839 emulsion Substances 0.000 claims abstract description 39
- 239000004568 cement Substances 0.000 claims abstract description 38
- 239000004567 concrete Substances 0.000 claims abstract description 27
- 239000002174 Styrene-butadiene Substances 0.000 claims abstract description 19
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011115 styrene butadiene Substances 0.000 claims abstract description 19
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004575 stone Substances 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000004321 preservation Methods 0.000 claims abstract description 6
- 239000004576 sand Substances 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 47
- 238000000034 method Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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- 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
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
- C04B41/71—Coating or impregnation for obtaining at least two superposed coatings having different compositions at least one coating being an organic material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a construction method of an anti-cracking inorganic heat-insulating mortar terrace, which comprises the following steps: coating a cement paste layer doped with construction glue on the cast-in-place reinforced concrete floor slab, and applying a cement-based inorganic heat-insulating mortar layer above the cement paste layer; spraying a first type butylbenzene emulsion on the upper surface of the cement-based inorganic heat-preservation mortar layer to form a slurry isolation layer, wherein the first type butylbenzene emulsion is prepared from butylbenzene emulsion, water, cement and fine sand; and binding a steel mesh on the slurry isolation layer, pouring a C20 fine stone concrete layer, uniformly spraying a second type styrene-butadiene emulsion once to form a flexible protection layer before the initial setting of the C20 fine stone concrete layer, wherein the second type styrene-butadiene emulsion is prepared from styrene-butadiene emulsion and water. The invention has the advantages that: the effect of slowing down the cracks on the surface of the terrace is achieved, and the requirement of attractive appearance is met.
Description
Technical Field
The invention belongs to the field of decoration of residential buildings, and particularly relates to a construction method of an anti-cracking inorganic thermal mortar terrace.
Background
The floor surface layer is used as an indoor finishing surface, and the using function and the attractiveness of the building are influenced. The cause of the concrete surface crack is analyzed: because the commercial concrete has good fluidity, the slump of the common commercial concrete is larger, the water cement ratio is larger, the cement consumption is increased when the water cement ratio is ensured, and the concrete has shrinkage cracks in the hardening stage. The cracks are mostly generated at the initial stage of concrete pouring, the cracks are irregular in shape and different in length and are not coherent, and the parts generating the cracks are mostly cement laitance layers and mortar layers. The concrete has large slump, a cement floating slurry layer and a mortar layer with large contractibility are formed on the surface through vibration, the cement floating slurry layer and the mortar layer have large contractibility, on one hand, the rapid volume contraction is generated due to the fact that surface free water is evaporated too fast when the concrete is initially set, the early strength of the concrete is low (the surface layer is the mortar layer and has low strength) at the moment, the concrete surface cracking is caused due to the fact that the deformation stress cannot be resisted, and on the other hand, the surface layer cracking is caused due to the fact that the deformation value of the surface layer floating slurry or the mortar is much larger than that of the base layer concrete.
Disclosure of Invention
The invention aims to provide a construction method of an anti-cracking inorganic heat-insulating mortar terrace according to the defects of the prior art, the construction method comprises the steps of spraying a first type of styrene-butadiene emulsion on a finished cement-based inorganic heat-insulating mortar layer to form a thin paste isolation layer, and spraying a second type of styrene-butadiene emulsion on a C20 fine stone concrete layer to form a flexible protection layer, so that the surface of the terrace is not cracked.
The purpose of the invention is realized by the following technical scheme:
a construction method of an anti-crack inorganic heat-insulating mortar terrace is characterized by comprising the following steps: coating a cement paste layer doped with construction glue on the cast-in-place reinforced concrete floor slab, and applying a cement-based inorganic heat-insulating mortar layer above the cement paste layer; spraying a first type butylbenzene emulsion on the upper surface of the cement-based inorganic heat-preservation mortar layer to form a slurry isolation layer, wherein the first type butylbenzene emulsion is prepared from butylbenzene emulsion, water, cement and fine sand; and binding a steel mesh on the slurry isolation layer, pouring a C20 fine stone concrete layer, uniformly spraying a second type styrene-butadiene emulsion once to form a flexible protection layer before the initial setting of the C20 fine stone concrete layer, wherein the second type styrene-butadiene emulsion is prepared from styrene-butadiene emulsion and water.
The thickness of cement-based inorganic heat preservation mortar layer is 25mm, the thickness on C20 fine stone concrete layer is 35mm, the thickness of thin thick liquid isolation layer is 3 mm.
And after the curing strength of the cement-based inorganic heat-preservation mortar layer reaches over 75 percent, spraying the first type butylbenzene emulsion.
The first type butylbenzene emulsion comprises the following components in percentage by mass: 1 part of butylbenzene emulsion, 1.5 parts of water, 3 parts of cement and 4.5 parts of fine sand.
The second type of styrene-butadiene emulsion is prepared from styrene-butadiene emulsion and water in a volume ratio of 1: 4.
The invention has the advantages that: the effect of slowing down the cracks on the surface of the terrace is achieved, and the requirement of attractive appearance is met.
Drawings
Fig. 1 is a schematic structural diagram of an anti-cracking inorganic heat-insulating terrace in the invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
referring to fig. 1, the symbols in the figure are: the concrete floor comprises a cast-in-place reinforced concrete floor 1, a cement slurry layer 2, a cement-based inorganic heat-preservation mortar layer 3, a thin slurry isolation layer 4, a C20 fine stone concrete layer 5 and a flexible protection layer 6.
Example (b): as shown in fig. 1, the embodiment specifically relates to a construction method of an anti-cracking inorganic heat-insulating mortar terrace, which includes the following steps:
(1) the method comprises the steps of coating a cement paste layer 2 doped with building glue on a cast-in-place reinforced concrete floor 1, pouring a cement-based inorganic heat-insulating mortar layer 3 with the thickness of 25mm above the cement paste layer 2, and then maintaining.
(2) After the curing strength of the cement-based inorganic heat-insulating mortar layer 3 reaches over 75 percent, first type butylbenzene emulsion is uniformly sprayed on the upper surface of the cement-based inorganic heat-insulating mortar layer to form a thin slurry isolation layer 4 with the thickness of 3mm, and the thin slurry isolation layer 4 is used for isolating a C20 fine stone concrete layer 5 which is poured subsequently from the cement-based inorganic heat-insulating mortar layer 3, so that the phenomenon that the surface of concrete is cracked due to water loss because a large amount of water in the fine stone concrete is absorbed by the inorganic heat-insulating mortar is avoided.
The first type butylbenzene emulsion is prepared from the following components in percentage by mass: 1 part of butylbenzene emulsion, 1.5 parts of water, 3 parts of cement and 4.5 parts of fine sand. The styrene-butadiene emulsion has hydraulicity and needs to be used up within 30 minutes after the preparation is finished, so that the slurry is ensured not to harden and agglomerate. The slurry is uniformly coated on the cement-based inorganic heat-insulating mortar layer 3 in a roll coating mode. And it should be noted that the styrene-butadiene emulsion is a general product available on the market.
(3) Binding a steel bar net piece above the slurry isolation layer 3, pouring a C20 fine stone concrete layer 5 with the thickness of 35mm, and uniformly spraying second type butylbenzene emulsion on the surface of the C20 fine stone concrete layer 5 before initial setting to form a flexible protection layer 6, so that tensile stress generated by too fast volume shrinkage due to surface moisture increase can be released; the subsequent C20 fine stone concrete layer 5 was cured after 12 hours with normal watering. Wherein, the second type butylbenzene emulsion is prepared by butylbenzene emulsion and water, and the preparation volume ratio of the butylbenzene emulsion to the water is 1: 4.
After the construction of the crack-resistant inorganic heat-insulating mortar terrace in the embodiment is completed, the construction effect is further verified, and the verification method comprises the following steps: by comparing the living rooms of two adjacent households, one room is constructed by adopting a design requirement method, and the other room is constructed by adopting the construction process; in addition, we find another intermediate layer for comparison as a slurry isolation layer, and through observation for 3 months, the development and change conditions of ground cracks are detailed in the following table, and it can be found that the terrace manufactured by the construction method in the embodiment can effectively prevent the cracks.
Claims (5)
1. A construction method of an anti-crack inorganic heat-insulating mortar terrace is characterized by comprising the following steps: coating a cement paste layer doped with construction glue on the cast-in-place reinforced concrete floor slab, and applying a cement-based inorganic heat-insulating mortar layer above the cement paste layer; spraying a first type butylbenzene emulsion on the upper surface of the cement-based inorganic heat-preservation mortar layer to form a slurry isolation layer, wherein the first type butylbenzene emulsion is prepared from butylbenzene emulsion, water, cement and fine sand; and binding a steel mesh on the slurry isolation layer, pouring a C20 fine stone concrete layer, uniformly spraying a second type styrene-butadiene emulsion once to form a flexible protection layer before the initial setting of the C20 fine stone concrete layer, wherein the second type styrene-butadiene emulsion is prepared from styrene-butadiene emulsion and water.
2. The construction method of the crack-resistant inorganic thermal mortar terrace according to claim 1, wherein the thickness of the cement-based inorganic thermal mortar layer is 25mm, the thickness of the C20 fine stone concrete layer is 35mm, and the thickness of the slurry isolation layer is 3 mm.
3. The construction method of the crack-resistant inorganic thermal mortar terrace according to claim 1, wherein the first type styrene-butadiene emulsion is sprayed after the curing strength of the cement-based inorganic thermal mortar layer reaches over 75%.
4. The construction method of the crack-resistant inorganic thermal-insulation mortar terrace according to claim 1, wherein the first type styrene-butadiene emulsion comprises the following components in parts by mass: 1 part of butylbenzene emulsion, 1.5 parts of water, 3 parts of cement and 4.5 parts of fine sand.
5. The construction method of the crack-resistant inorganic thermal-insulation mortar terrace according to claim 1, wherein the second type of styrene-butadiene emulsion is prepared from styrene-butadiene emulsion and water in a volume ratio of 1: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110783051.6A CN113417438A (en) | 2021-07-12 | 2021-07-12 | Construction method of crack-resistant inorganic thermal-insulation mortar terrace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110783051.6A CN113417438A (en) | 2021-07-12 | 2021-07-12 | Construction method of crack-resistant inorganic thermal-insulation mortar terrace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113417438A true CN113417438A (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110783051.6A Pending CN113417438A (en) | 2021-07-12 | 2021-07-12 | Construction method of crack-resistant inorganic thermal-insulation mortar terrace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113417438A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370164A (en) * | 2022-02-15 | 2022-04-19 | 中国十七冶集团有限公司 | Floor flatness control method |
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| CN111550009A (en) * | 2020-06-05 | 2020-08-18 | 中国二十二冶集团有限公司 | Anti-cracking terrace and construction method thereof |
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-
2021
- 2021-07-12 CN CN202110783051.6A patent/CN113417438A/en active Pending
Patent Citations (7)
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| JP2010216175A (en) * | 2009-03-18 | 2010-09-30 | Takenaka Doro:Kk | Rc floor slab structure and repair method for increasing thickness of rc floor slab |
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Non-Patent Citations (1)
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Cited By (1)
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| CN114370164A (en) * | 2022-02-15 | 2022-04-19 | 中国十七冶集团有限公司 | Floor flatness control method |
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