CN111364696A - Construction method for expansion joint of fine stone concrete flat roof - Google Patents
Construction method for expansion joint of fine stone concrete flat roof Download PDFInfo
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- CN111364696A CN111364696A CN202010178237.4A CN202010178237A CN111364696A CN 111364696 A CN111364696 A CN 111364696A CN 202010178237 A CN202010178237 A CN 202010178237A CN 111364696 A CN111364696 A CN 111364696A
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- expansion joint
- granite
- construction method
- concrete
- roof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D7/00—Roof covering exclusively consisting of sealing masses applied in situ; Gravelling of flat roofs
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to the technical field of building construction, in particular to a construction method of an expansion joint of a fine aggregate concrete flat roof. Before the roofing engineering concrete is poured, popping up a determined expansion joint position by using an ink line, inlaying the cut leftover material granite lath on a base layer along the ink line by using mortar with the same proportion, wherein the top elevation is the same as the roof surface layer, and the width of the expansion joint is reserved in the middle; after the mortar reaches a certain strength, performing roof concrete pouring and maintaining for 7 days; the expansion joint is filled with glue and caulked. The method makes full use of the residual materials of the granite plate for construction, and improves the utilization rate of materials; after the concrete pouring is finished, the forming quality of the expansion joint meets the requirement; the width and the depth of the expansion joint can be ensured to be consistent, and the smoothness and the straightness of the expansion joint can be ensured; the later stage caulking is difficult to pollute the surface course, and conveniently clears up and accomplish the engineering once excellent, the later stage maintenance cost that significantly reduces alleviates time limit for a project pressure. The invention is mainly applied to the construction aspect of the expansion joint of the concrete surface.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of an expansion joint of a fine aggregate concrete flat roof.
Background
The roof expansion joint is set for meeting the requirement of building roof expansion with heat and contraction with cold, but if the expansion joint is not easy to be made, the quality defects of roof concrete crack, untightness of expansion joint, different width, uneven surface, corner missing, etc. can be caused, thereby not only affecting the appearance quality, but also causing water leakage and water seepage when the expansion joint is serious. This not only restricts the project evaluation and award evaluation, but also greatly increases the maintenance cost in the later period. The traditional construction method has two types: 1. integrally pouring roof concrete, and separately cutting grooves at the later stage of the expansion joint, wherein the ink lines pollute the peripheral surface layer concrete; in the cutting process, concrete is damaged at a plurality of positions, the corners of the periphery of the expansion joint are seriously fallen, obvious cutting traces exist, the cutting is not smooth and straight, the waterproof performance is easy to damage, and the picking depth is not uniform; the later caulking easily pollutes the peripheral concrete and is not easy to clean; the concrete at the two sides of the expansion joint is easy to damage through freeze thawing. 2. Elastic materials are pre-embedded, and are removed at a later stage, the position of the pre-embedded elastic materials is inaccurate, and displacement is easy to generate; the elastic material has insufficient strength and is easy to damage, and the smoothness and the straightness cannot be ensured; the concrete is damaged in the removing process, and the corner drop at the periphery of the expansion joint is serious; the later caulking easily pollutes the peripheral concrete and is not easy to clean; the concrete at the two sides of the expansion joint is easy to damage through freeze thawing.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the construction method of the expansion joint of the fine stone concrete flat roof, which can effectively eliminate the quality defects of roof concrete cracks, untightness, different widths, uneven surfaces, unfilled edges, corner falling and the like caused by the traditional process, ensure the engineering quality and save the cost.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a construction method for an expansion joint of a fine aggregate concrete flat roof comprises the following steps:
s1, cutting a granite lath;
s2, typesetting at the expansion joint;
s3, measuring and paying off;
s4, inlaying granite laths;
s5, pouring surface layer concrete;
s6, cleaning a granite welt, and caulking by weather-resistant glue;
and S7, checking and accepting.
In the step S1, a granite plate with the thickness of 2cm is selected to be made into a long strip-shaped plate, and a 45-degree joint angle is adopted at the joint of the right angle and the cross.
In the step S3, the measuring and setting-out are performed strictly according to the telescopic stitch layout.
In the step S4, the cut granite laths are combined into a group, the granite laths are parallelly inlaid on the base layer along the ink lines, the width of an expansion joint of 2cm is reserved between the laths, and the top elevation is the same as the height of the roof surface layer.
In the step S5, roof concrete is poured lattice by lattice, and the granite welt is protected by a plastic film before pouring.
In the step S6, after the concrete meets the strength requirement, granite on which the lattice seam is bordered in advance is cleaned, and weather-resistant glue caulking is injected.
Compared with the prior art, the invention has the beneficial effects that:
the residual materials of the granite plate are fully utilized for construction, so that the material utilization rate is improved; after the concrete pouring is finished, the forming quality of the expansion joint meets the requirement; the width and the depth of the expansion joint can be ensured to be consistent, and the smoothness and the straightness of the expansion joint can be ensured; the later stage caulking is difficult to pollute the surface course, and convenient clearance, and above all can accelerate the construction progress, control the quality of every process effectively, accomplishes the engineering once excellent, the later stage maintenance cost that significantly reduces alleviates time limit for a project pressure.
Drawings
FIG. 1 is a construction flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a construction method for an expansion joint of a fine aggregate concrete flat roof includes the following steps:
s1, cutting a granite lath;
s2, typesetting at the expansion joint;
s3, measuring and paying off;
s4, inlaying granite laths;
s5, pouring surface layer concrete;
s6, cleaning a granite welt, and caulking by weather-resistant glue;
and S7, checking and accepting.
Preferably, in step S1, a 2cm thick granite plate is selected to be made into a strip-shaped plate, the size of the plate is 80cm in length and 5cm in width, a 45-degree joint angle plate strip is adopted at a right angle and cross joint position, the cutting error is not more than 1mm, and granite is formed by utilizing construction corner excess materials.
Preferably, in step S3, the measurement and setting-out are performed strictly according to the telescopic stitch layout, and the expansion joint edge is popped up, the popping line is clear and straight, and the error is not more than 1 mm.
Preferably, in step S4, according to the side line of the expansion joint, the cut granite laths are grouped into a group according to two lines, cement mortar in the same proportion as the roof concrete is adopted to inlay the laths, the laths are parallelly inlaid on the base layer along the ink line, the width of the expansion joint of 2cm is reserved between the laths, the top elevation is the same as the height of the roof surface, maintenance is carried out in time, finished product protection is carried out, the granite laths cannot be loosened, and the position deviation is not more than 1 mm.
Preferably, in step S5, after cement mortar reaches a certain strength and is accepted, roof concrete is poured one by one, and water is maintained and sprinkled for seven days, plastic films are used for protecting the granite welt before pouring, the granite welt is vibrated to be dense, compacted and leveled during pouring, secondary press polish is carried out immediately after water is collected, the deviation of surface flatness is not more than 5mm, and the granite connection part is vibrated to be dense.
Preferably, in step S6, after the concrete meets the strength requirement, granite which is previously trimmed at the lattice seam is cleaned, and weather-resistant glue caulking is injected.
And after the construction is finished, checking and accepting according to design requirements.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (6)
1. A construction method for an expansion joint of a fine aggregate concrete flat roof is characterized by comprising the following steps:
s1, cutting a granite lath;
s2, typesetting at the expansion joint;
s3, measuring and paying off;
s4, inlaying granite laths;
s5, pouring surface layer concrete;
s6, cleaning a granite welt, and caulking by weather-resistant glue;
and S7, checking and accepting.
2. The construction method for the expansion joint of the fine aggregate concrete flat roof as claimed in claim 1, wherein: in the step S1, a granite plate with the thickness of 2cm is selected to be made into a long strip-shaped plate, and a 45-degree joint angle is adopted at the joint of the right angle and the cross.
3. The construction method for the expansion joint of the fine aggregate concrete flat roof as claimed in claim 1, wherein: in the step S3, the measuring and setting-out are performed strictly according to the telescopic stitch layout.
4. The construction method for the expansion joint of the fine aggregate concrete flat roof as claimed in claim 1, wherein: in the step S4, the cut granite laths are combined into a group, the granite laths are parallelly inlaid on the base layer along the ink lines, the width of an expansion joint of 2cm is reserved between the laths, and the top elevation is the same as the height of the roof surface layer.
5. The construction method for the expansion joint of the fine aggregate concrete flat roof as claimed in claim 1, wherein: in the step S5, roof concrete is poured lattice by lattice, and the granite welt is protected by a plastic film before pouring.
6. The construction method for the expansion joint of the fine aggregate concrete flat roof as claimed in claim 1, wherein: in the step S6, after the concrete meets the strength requirement, granite on which the lattice seam is bordered in advance is cleaned, and weather-resistant glue caulking is injected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010178237.4A CN111364696A (en) | 2020-03-14 | 2020-03-14 | Construction method for expansion joint of fine stone concrete flat roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010178237.4A CN111364696A (en) | 2020-03-14 | 2020-03-14 | Construction method for expansion joint of fine stone concrete flat roof |
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| Publication Number | Publication Date |
|---|---|
| CN111364696A true CN111364696A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010178237.4A Pending CN111364696A (en) | 2020-03-14 | 2020-03-14 | Construction method for expansion joint of fine stone concrete flat roof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2370145A1 (en) * | 1976-11-05 | 1978-06-02 | Asphaltes Cie Metropolitaine | Underground structure concrete roof suitable for supporting vehicles - has expansion joints covered by multiple layers of bitumen, kraft paper, sand and concrete |
| CN203383409U (en) * | 2013-07-31 | 2014-01-08 | 陕西建工集团第七建筑工程有限公司 | Caulking construction structure for surface layer dividing joints of building roof |
| CN104612332A (en) * | 2014-12-26 | 2015-05-13 | 山西四建集团有限公司 | Fine aggregate concrete roof double-glass strip dividing joint construction method |
| CN105442763A (en) * | 2015-12-24 | 2016-03-30 | 山东万鑫建设有限公司 | Construction method for preventing and controlling cracks of roof surface course |
| CN108868065A (en) * | 2018-06-20 | 2018-11-23 | 中国建筑第七工程局有限公司 | Equipment, method is stayed in a kind of construction of concrete floor expansion joint |
-
2020
- 2020-03-14 CN CN202010178237.4A patent/CN111364696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2370145A1 (en) * | 1976-11-05 | 1978-06-02 | Asphaltes Cie Metropolitaine | Underground structure concrete roof suitable for supporting vehicles - has expansion joints covered by multiple layers of bitumen, kraft paper, sand and concrete |
| CN203383409U (en) * | 2013-07-31 | 2014-01-08 | 陕西建工集团第七建筑工程有限公司 | Caulking construction structure for surface layer dividing joints of building roof |
| CN104612332A (en) * | 2014-12-26 | 2015-05-13 | 山西四建集团有限公司 | Fine aggregate concrete roof double-glass strip dividing joint construction method |
| CN105442763A (en) * | 2015-12-24 | 2016-03-30 | 山东万鑫建设有限公司 | Construction method for preventing and controlling cracks of roof surface course |
| CN108868065A (en) * | 2018-06-20 | 2018-11-23 | 中国建筑第七工程局有限公司 | Equipment, method is stayed in a kind of construction of concrete floor expansion joint |
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Application publication date: 20200703 |
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