CN106088411B - A kind of rain-proof water erosion reinforcement means of existing raw-soil wall - Google Patents
A kind of rain-proof water erosion reinforcement means of existing raw-soil wall Download PDFInfo
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- CN106088411B CN106088411B CN201610474459.4A CN201610474459A CN106088411B CN 106088411 B CN106088411 B CN 106088411B CN 201610474459 A CN201610474459 A CN 201610474459A CN 106088411 B CN106088411 B CN 106088411B
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- existing raw
- soil wall
- reinforcing bar
- steel wire
- soil
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Classifications
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- 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
- 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
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0045—Polymers chosen for their physico-chemical characteristics
- C04B2103/0057—Polymers chosen for their physico-chemical characteristics added as redispersable powders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention belongs to the earth building reinforcement technique fields of civil engineering, specifically disclose a kind of rain-proof water erosion reinforcement means of existing raw-soil wall, include the following steps：Reinforcing bar is laid on existing raw-soil wall first；Then the surface dust of existing raw-soil surface of wall is cleared up；Steel wire is hung on to the two sides of existing raw-soil wall respectively by reinforcing bar again, is bound steel wire on reinforcing bar by tied silk；Viscous fiber mortar is smeared in the two sides of the existing raw-soil wall again, forms viscous fiber mortar surface layer, viscous fiber mortar surface layer covers reinforcing bar and steel wire.Have many advantages, such as not increase existing raw-soil wall self weight using reinforcement means of the invention and do not change existing raw-soil wall size, this method is cheap, construction technology is simple, construction is convenient, is remarkably improved the durability and anti-seismic performance of raw-soil wall.
Description
Technical field
The present invention relates to the earth building reinforcement technique fields of civil engineering, and in particular to a kind of existing raw-soil wall is prevented
Rain erosion reinforcement means.
Background technique
Earth building is not only cool in summer and warm in winter, healthy comfortable, has cheap economic benefit of gathering materials on the spot, and reduces indoor
Heat preservation, refrigeration aspect energy consumption and carbon emission, it is often more important that building course energy conservation and environmental protection, have most strong degradability and
Recuperability can be recycled, and has splendid ecological environment benefit, is real green building, but earth building self weight compared with
Greatly, wall shear strength is lower, meanwhile, there is also being destroyed vulnerable to rain erosion, the shortcomings that durability and poor seismic behavior.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of rainwater-proofs of existing raw-soil wall
Reinforcement means is corroded, this method is cheap, construction technology is simple, can significantly improve the durability and anti-seismic performance of wall.
In order to achieve the above object, the present invention is achieved by the following scheme.
A kind of rain-proof water erosion reinforcement means of existing raw-soil wall, which is characterized in that include the following steps：
Step 1, lay reinforcing bar on existing raw-soil wall, the reinforcing bar to the two sides for being through at the existing raw-soil wall,
And the prominent existing raw-soil wall two sides；
Step 2, the surface dust of existing raw-soil surface of wall is cleared up；
Step 3, steel wire is hung on to the two sides of the existing raw-soil wall respectively by the reinforcing bar, it will by tied silk
The steel wire binding is on the reinforcing bar；
Step 4, viscous fiber mortar is prepared, for use；The viscous fiber mortar includes following raw material components：Cement, powder
Coal ash, sand, redispersable latex powder, hydroxypropyl methyl cellulose and water；
Step 5, viscous fiber mortar is smeared in the two sides of the existing raw-soil wall, forms viscous fiber mortar surface layer,
And the viscous fiber mortar surface layer covers the reinforcing bar and the steel wire.
Further, in step 1, reinforcing bar, the horizontal space and longitudinal pitch of the reinforcing bar are laid on existing raw-soil wall
Respectively 300mm.
Further, in step 1, the reinforcing bar is the HRB400 grade reinforcing bar of diameter 10mm.
Further, in step 1, the prominent existing raw-soil wall 10~15mm of two sides of the reinforcing bar.
Further, in step 3, the steel wire is zinc-plated electric welding formula steel wire, and the steel wire diameter of the steel wire is
1mm, mesh size are 15mm × 15mm.
Further, in step 3, the tied silk is zinc-plated tied silk.
Further, in step 4, the cement, flyash, sand and water mass percent be 1: (0.15~0.2): (4
~4.43): (0.9~1.1), the redispersable latex powder be the cement, flyash, sand gross mass 1.5~1.7%,
The hydroxypropyl methyl cellulose be the cement, flyash, sand gross mass 0.16~0.2%；
Further, the preparation of the viscous fiber mortar follows the steps below：First by cement, flyash and sand
After dry mixing is uniform, the water for being added 80% continues to stir evenly；Hydroxypropyl methyl cellulose is added, is stirred evenly, is continuously added
The water of residue 20%, stirs evenly；Be eventually adding redispersable latex powder, stir at least 3 minutes to get.
Further, the cement is portland cement；The flyash is I grades of flyash, and quality index includes：45
μm square hole screen is tailed over no more than 12%, and water demand ratio is not more than 95%, and sulfur trioxide content is not more than 3%；The sand is partial size
Fine sand no more than 2.36mm；The redispersable latex powder is the copolymer of acrylate, vinyl acetate and vinyl acetate.
Further, in step 5, the viscous fiber mortar surface layer with a thickness of 15~20mm.
Compared with prior art, beneficial effects of the present invention are：
Had using reinforcement means of the invention and does not increase existing raw-soil wall self weight and do not change existing raw-soil wall ruler
The advantages that very little, this method is cheap, construction technology is simple, construction is convenient, and existing raw-soil wall can be made from rain erosion, and
The durability and anti-seismic performance of existing raw-soil wall can be significantly improved.
Detailed description of the invention
The present invention is described in further details in the following with reference to the drawings and specific embodiments.
Fig. 1 is to be added using a kind of rain-proof water erosion reinforcement means of existing raw-soil wall of the invention to existing raw-soil wall
Schematic diagram after Gu；In figure：1, existing raw-soil wall；2, to wearing reinforcing bar；3, steel wire；4, viscous fiber mortar surface layer；5, it pricks
Silk；
Fig. 2 is the damage -form figure for carrying out the unguyed side of test specimen after pseudo-static experimental in embodiment 2 to test specimen；
Fig. 3 is the damage -form figure for carrying out test specimen reinforcing side after pseudo-static experimental in embodiment 2 to test specimen.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
The present invention provides a kind of rain-proof water erosion reinforcement means of existing raw-soil wall, includes the following steps：
Step 1, lay reinforcing bar on existing raw-soil wall, the reinforcing bar to the two sides for being through at the existing raw-soil wall,
And the prominent existing raw-soil wall 10~15mm of two sides；Wherein, the horizontal space and longitudinal pitch of reinforcing bar are respectively 300mm,
Reinforcing bar is the HRB400 grade reinforcing bar of diameter 10mm；
Step 2, the surface dust of existing raw-soil surface of wall is cleared up；
Step 3, the steel wire that silk diameter is 1mm, mesh size is 15mm × 15mm is hung on both respectively by reinforcing bar
There are the two sides of raw-soil wall, is bound steel wire on reinforcing bar by zinc-plated tied silk；
Step 4, viscous fiber mortar is prepared, for use；Viscous fiber mortar includes following raw material components：Cement, flyash,
Sand, redispersable latex powder, hydroxypropyl methyl cellulose and water；
Step 5, viscous fiber mortar is smeared in the two sides of the existing raw-soil wall, is formed with a thickness of the viscous of 15~20mm
Property fibre mortar surface layer, and the viscous fiber mortar surface layer covers the reinforcing bar and the steel wire.
Existing raw-soil wall is using the schematic diagram after above method reinforcing as shown in Figure 1, laying steel in existing raw-soil wall 1
Steel wire 3 is hung on the two sides of existing raw-soil wall 1 by muscle 2 respectively by reinforcing bar 2, is bound steel wire 3 by tied silk 5
On reinforcing bar 2, then in the external application viscous fiber mortar of existing raw-soil wall 1, viscous fiber mortar surface layer 4 is formed, it is described viscous
Property fibre mortar surface layer 4 cover reinforcing bar and steel wire, that is, complete the reinforcing to existing raw-soil wall 1.
In the present embodiment,
The strong amplitude in the wrong of HRB400 grades of reinforcing bars is not less than 400MPa.
In the material composition of viscous fiber mortar, the cement, flyash, sand and water mass percent be 1:0.2:4:
1, redispersable latex powder be the cement, flyash, sand gross mass 1.6%, hydroxypropyl methyl cellulose be the cement,
The 0.16% of flyash, sand gross mass；The preparation of viscous fiber mortar follows the steps below：First by cement, flyash
With sand dry mixing it is uniform after, the water for being added 80% continues to stir evenly；Hydroxypropyl methyl cellulose is added, is stirred evenly, is continued
The water of residue 20% is added, stirs evenly；Be eventually adding redispersable latex powder, stir at least 3 minutes to get.
Cement is P.0.42.5R portland cement；
Flyash is I grades of flyash, reference standard GB/T 1596-2005《For the flyash in cement and concrete》
Grading, quality index include：45 μm of square hole screens are tailed over no more than 12%, and water demand ratio is not more than 95%, sulfur trioxide content
No more than 3%；
The fine sand and partial size that fine sand of the sand for partial size no more than 2.36mm, specifically partial size are 0.15~1.18mm are 1.18
(quality for the fine sand that partial size is 1.18~2.36mm is that partial size is the thin of 0.15~1.18mm to the mixed sand of the fine sand of~2.36mm
The 3% of sand)；
Redispersable latex powder is the copolymer of acrylate, vinyl acetate and vinyl acetate.
Embodiment 2
Mechanical property test is carried out to the viscous fiber mortar in embodiment 1, it is specific as follows：
It is natural using the test cube of 70.7mm × 70.7mm × 70.7mm standard test mode production viscous fiber mortar
It is conserved under state (room temperature) 30 days (preceding 7 days showering curings), carries out cubic compressive strength test.Test result shows：Viscosity
Fibre mortar test block pressure resistance intensity average value is 21.7MPa.
It is made on raw-soil brick block of 40mm × 40mm × 4mm mold and stretches test block, (supported by standard curing method
Protecting room temperature is 20 ± 3 degree, 90% or more humidity) maintenance 30 days, carry out direct tensile test.The result shows that：Using sticky fine
Tieing up the raw-soil brick block test specimen uniaxial tensile strength average value that mortar is built is 0.77MPa, and failure mechanics betide green cob brick surface layer,
Rather than mortar surface layer；And the same type comparative test result of ordinary mortar is shown, the raw-soil brick block built using ordinary mortar
For test specimen uniaxial tensile strength value less than 0.1MPa, failure mechanics betide green cob brick and mortar bonding face.
Experiments have shown that, compared with ordinary mortar, viscous fiber mortar compression strength does not improve a lot above, but with life
The adhesive property of soil material is much higher than the adhesive property of ordinary mortar and raw soil material.
Embodiment 3
It is 4950mm × 3900mm × 720mm rammed earth wall as research object that the present embodiment, which uses prototype, using model
The pseudo-static experimental under Frequency Cyclic Static Loading, examination are carried out having a size of 1: 3 reduced scale test specimen of 1650mm × 1300mm × 240mm
It tests and the results are shown in Table 1, the damage -form of the unguyed side of test specimen is shown in Fig. 2, and the damage -form for reinforcing side is shown in Fig. 3.
Load of 1 test specimen of table under horizontal loads
Note：W-1 is former loam wall test specimen；W-2-1 and W-2-2 is that wall side is added using high viscosity mortar steel wire surface layer
Gu technology.
From the data in the table, the cracking load ultimate load and the limit of the wall (W-2-1, W-2-2) of reinforced mistake
Load is apparently higher than unguyed wall (W-1), and the raising degree of cracking load is about 315%~424%, and ultimate load mentions
High level has reached 47% or so, illustrates that ferro-cement surface layer reinforces the cracking that rammed earth wall delays wall, improves
The ultimate load of wall, enhances the seismic bearing capacity of wall.It is also known by data in table, the wall (W- of reinforced mistake
2-1, W-2-2) deformation characteristic be apparently higher than unguyed wall (W-1), the raising degree for displacement of cracking reaches 100%~
200%, the raising degree of extreme displacement is 100%；The raising of load peak displacement is not obvious, and illustrates high viscosity mortar steel wire
Wire side layer reinforces the cracking that rammed earth wall delays wall, improves the deformability of wall.
Rammed earth can be directly by rain drop erosion, but the present invention smears high viscosity fibre mortar shape in existing raw-soil wall two sides
After high viscosity fibre mortar surface layer, existing raw-soil wall can be prevented by rain erosion；Make to reinforce by means of the present invention
The durability and anti-seismic performance of existing raw-soil wall afterwards are significantly improved.
Although the present invention is described in detail with a general description of the specific embodiments in this specification,
But on the basis of the present invention, it can be modified or is improved, this will be apparent to those skilled in the art.
Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed model
It encloses.
Claims (7)
1. a kind of rain-proof water erosion reinforcement means of existing raw-soil wall, which is characterized in that include the following steps：
Step 1, reinforcing bar is laid on existing raw-soil wall, the reinforcing bar dashes forward to the two sides for being through at the existing raw-soil wall
The existing raw-soil wall two sides out；Reinforcing bar, the horizontal space and longitudinal pitch point of the reinforcing bar are laid on existing raw-soil wall
It Wei not 250~350mm；
Step 2, the surface dust of existing raw-soil surface of wall is cleared up；
Step 3, steel wire is hung on to the two sides of the existing raw-soil wall respectively by the reinforcing bar, it will be described by tied silk
Steel wire is bound on the reinforcing bar；
Step 4, viscous fiber mortar is prepared, for use；The viscous fiber mortar includes following raw material components：Cement, flyash,
Sand, redispersable latex powder, hydroxypropyl methyl cellulose and water；The cement, flyash, sand and water mass percent be 1：
(0.15~0.2)：(4~4.43)：(0.9~1.1), the redispersable latex powder are the cement, flyash, sand gross mass
1.5~1.7%, the hydroxypropyl methyl cellulose be the cement, flyash, sand gross mass 0.16~0.2%；
Step 5, viscous fiber mortar is smeared in the two sides of the existing raw-soil wall, forms viscous fiber mortar surface layer, and institute
It states viscous fiber mortar surface layer and covers the reinforcing bar and the steel wire.
2. the rain-proof water erosion reinforcement means of existing raw-soil wall according to claim 1, which is characterized in that in step 1,
The reinforcing bar is the HRB400 grade reinforcing bar of diameter 10mm.
3. the rain-proof water erosion reinforcement means of existing raw-soil wall according to claim 1, which is characterized in that in step 1,
The prominent existing raw-soil wall 10~15mm of two sides of the reinforcing bar.
4. the rain-proof water erosion reinforcement means of existing raw-soil wall according to claim 1, which is characterized in that in step 3,
The steel wire is zinc-plated electric welding formula steel wire, and the steel wire diameter of the steel wire is 1mm, and mesh size is 15mm × 15mm.
5. the rain-proof water erosion reinforcement means of existing raw-soil wall according to claim 1, which is characterized in that the viscosity
The preparation of fibre mortar follows the steps below：First by cement, flyash and sand dry mixing it is uniform after, be added 80% water after
It is continuous to stir evenly；Hydroxypropyl methyl cellulose is added, is stirred evenly, the water of residue 20% is continuously added, stirs evenly；Finally
Be added redispersable latex powder, stir at least 3 minutes to get.
6. the rain-proof water erosion reinforcement means of existing raw-soil wall according to claim 1, which is characterized in that the cement
For portland cement；The flyash is I grades of flyash, and quality index includes：45 μm of square hole screens are tailed over no more than 12%, are needed
Water ratio is not more than 95%, and sulfur trioxide content is not more than 3%；The sand is the fine sand that partial size is not more than 2.36mm；It is described can
Redisperse latex powder is the copolymer of acrylate, vinyl acetate and vinyl acetate.
7. the rain-proof water erosion reinforcement means of existing raw-soil wall according to claim 1, which is characterized in that in step 5,
The viscous fiber mortar surface layer with a thickness of 15~20mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610474459.4A CN106088411B (en) | 2016-06-24 | 2016-06-24 | A kind of rain-proof water erosion reinforcement means of existing raw-soil wall |
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| CN201610474459.4A CN106088411B (en) | 2016-06-24 | 2016-06-24 | A kind of rain-proof water erosion reinforcement means of existing raw-soil wall |
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| CN106088411B true CN106088411B (en) | 2018-11-27 |
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| CN106703434B (en) * | 2016-12-30 | 2022-04-19 | 西安五和土木工程新材料有限公司 | Raw soil wall reinforcing apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519296A (en) * | 2009-03-30 | 2009-09-02 | 上海英硕聚合物材料有限公司 | Thermal insulation bonding mortar with high bonding strength |
| CN101343951B (en) * | 2008-08-18 | 2010-08-25 | 昆明理工大学 | Fibre steel wire mesh reinforcement technique for earth wall of existing raw soil building |
| CN104844091A (en) * | 2015-05-05 | 2015-08-19 | 中国建筑材料科学研究总院 | Raw soil building binding material suitable for raw soil building blocks and preparation method of binding material |
| CN105272024A (en) * | 2015-05-19 | 2016-01-27 | 连云港松彬建筑材料有限公司 | Bonding mortar |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4166183B2 (en) * | 2004-03-25 | 2008-10-15 | 太平洋セメント株式会社 | concrete |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343951B (en) * | 2008-08-18 | 2010-08-25 | 昆明理工大学 | Fibre steel wire mesh reinforcement technique for earth wall of existing raw soil building |
| CN101519296A (en) * | 2009-03-30 | 2009-09-02 | 上海英硕聚合物材料有限公司 | Thermal insulation bonding mortar with high bonding strength |
| CN104844091A (en) * | 2015-05-05 | 2015-08-19 | 中国建筑材料科学研究总院 | Raw soil building binding material suitable for raw soil building blocks and preparation method of binding material |
| CN105272024A (en) * | 2015-05-19 | 2016-01-27 | 连云港松彬建筑材料有限公司 | Bonding mortar |
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