阅读说明：本技术 一种可预防开裂的砼楼板及其施工方法 (Concrete floor slab capable of preventing cracking and construction method thereof ) 是由 陈亚志 许乔一 张碧玮 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种可预防开裂的砼楼板,其特征在于,包括：楼板混凝土,所述楼板混凝土厚度方向中部预埋有若干镀锌钢管,所述镀锌钢管的长度方向与楼板混凝土的延伸方向平行,所述镀锌钢管外侧具有若干贯穿的放水小孔,所述镀锌钢管长度方向末端设置有抽丝端头,相邻所述抽丝端头处旋合有连接套筒,实现镀锌钢管长度方向的延伸,所述镀锌钢管内灌注有水泥浆,所述镀锌钢管最外侧两端部设置有封堵盖,解决上述现有技术中无法实现混凝土内部降温养护容易开裂的技术问题。(The invention discloses a concrete floor slab capable of preventing cracking, which is characterized by comprising the following components: floor concrete, pre-buried a plurality of galvanized steel pipes that have in floor concrete thickness direction middle part, the length direction of galvanized steel pipe is parallel with the extending direction of floor concrete, the galvanized steel pipe outside has a plurality of apertures that drain that run through, galvanized steel pipe length direction end is provided with the wire drawing end, and is adjacent wire drawing end department closes soon has connecting sleeve, realizes galvanized steel pipe length direction's extension, the grout has been filled in the galvanized steel pipe, galvanized steel pipe outside both ends are provided with the shutoff lid, solve among the above-mentioned prior art unable concrete inside cooling maintenance easy cracked technical problem.)

1. A concrete floor slab capable of preventing cracking, comprising: floor concrete (1), pre-buried a plurality of galvanized steel pipes (2) that have in floor concrete (1) thickness direction middle part, the length direction of galvanized steel pipe (2) is parallel with the extending direction of floor concrete (1), galvanized steel pipe (2) outside has a plurality of apertures (4) that drain that run through, galvanized steel pipe (2) length direction end is provided with the end of drawing a thread (6), and is adjacent draw a thread end (6) department and close soon and have connecting sleeve (5), realize galvanized steel pipe (2) length direction's extension, the grout has been poured in galvanized steel pipe (2), galvanized steel pipe (2) outside both ends are provided with the shutoff lid.

2. A concrete floor capable of preventing cracking according to claim 1, wherein the galvanized steel pipe (2) is tied with a steel reinforcement framework of the floor concrete (1) by a binding wire.

3. A concrete floor capable of preventing cracking according to claim 1, wherein the galvanized steel pipe (2) is coated with non-woven fabrics (3) on the outer side.

4. A concrete floor capable of preventing cracking according to claim 3, wherein the galvanized steel pipes (2) and the non-woven fabrics (3) are bundled by binding wires.

5. A construction method of a concrete floor capable of preventing cracking is characterized in that in the process of manufacturing a steel bar of floor concrete (1), a galvanized steel pipe (2) with a water drainage small hole (4) processed in advance is bundled with a steel bar at the bottom of the manufactured steel bar of the floor concrete (1), then gluten manufacturing of the steel bar of the floor concrete (1) is continued, the steel bar is bundled with the galvanized steel pipe (2) after the manufacturing, concrete is poured after the completion, water is injected into the galvanized steel pipe (2) after concrete is finally set, water is drained into the concrete through the water drainage small hole (4), and cement slurry is injected into the galvanized steel pipe (2) after the concrete reaches a formwork removal condition to form the floor concrete (1).

6. A construction method of a concrete floor capable of preventing cracking according to claim 5, wherein the galvanized steel pipe (2) is coated with a non-woven fabric (3) on the surface.

7. A method of constructing a concrete floor with crack prevention according to claim 5, wherein said galvanized steel pipe (2) is subjected to a wet treatment before said concrete is poured.

8. The construction method of a concrete floor capable of preventing cracks according to claim 5, wherein the two ends of the galvanized steel pipe (2) are plugged after the cement slurry of the galvanized steel pipe (2) is injected.

9. A construction method of a concrete floor capable of preventing cracks according to claim 8, wherein both ends of the galvanized steel pipe (2) are sealed by closing sealing covers.

10. A construction method of a concrete floor capable of preventing cracks according to claim 5, wherein the water injection operation in the galvanized steel pipe (2) is repeated for 2-3 days.

Technical Field

The invention belongs to the technical field of buildings, and particularly relates to a concrete floor slab capable of preventing cracking and a construction method thereof.

Background

In the building engineering work progress, to the construction back of concrete floor, the phenomenon of fracture often appears, application number 201910043640.3's floor concrete or mortar anti-crack structure and way among the prior art, including concrete floor layer, the heat preservation puigging is located the top of concrete floor layer, the first steel ring of top fixedly connected with of heat preservation puigging, the first screw rod of top fixedly connected with of first steel ring, the top threaded connection of first screw rod has the screwed pipe, the top threaded connection of screwed pipe has the second screw rod, the top fixedly connected with second steel ring of second screw rod, the belt pulley has been cup jointed on the surface of screwed pipe, the inner wall transmission of belt pulley is connected with the belt, the inside of first steel ring and second steel ring is provided with three-dimensional anti glass fiber net that splits, nevertheless not reach the inside maintenance of concrete, unable cooling maintenance, also there is the risk of fracture.

Disclosure of Invention

The invention aims to provide a concrete floor slab capable of preventing cracking and a construction method thereof, and solves the technical problem that the concrete is easy to crack because the internal temperature reduction and maintenance of the concrete cannot be realized in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a concrete floor slab capable of preventing cracking, comprising: floor concrete, pre-buried a plurality of galvanized steel pipes that have in floor concrete thickness direction middle part, the length direction of galvanized steel pipe is parallel with the extending direction of floor concrete, the galvanized steel pipe outside has a plurality of holes of draining that run through, galvanized steel pipe length direction end is provided with the end of drawing a thread, and is adjacent draw a thread end department and close soon there is connecting sleeve, realizes galvanized steel pipe length direction's extension, the grout has been filled in the galvanized steel pipe, galvanized steel pipe outside both ends are provided with the shutoff lid.

According to the concrete floor slab capable of preventing cracking, the galvanized steel pipes and the steel reinforcement framework of the floor slab concrete are bundled by the binding wires.

According to the concrete floor slab capable of preventing cracking, the non-woven fabric is laid on the outer side of the galvanized steel pipe.

According to the concrete floor slab capable of preventing cracking, the galvanized steel pipes and the non-woven fabrics are bundled by the binding wires.

A construction method of concrete floor slab capable of preventing cracking is characterized in that in the process of manufacturing steel bars of floor slab concrete, a galvanized steel pipe with pre-processed water drainage pores and bottom steel bars of the manufactured floor slab concrete steel bars are bundled, then gluten of the floor slab concrete steel bars is manufactured continuously, the steel bars and the galvanized steel pipe are bundled after the completion, concrete is poured after the completion, water is injected into the galvanized steel pipe after the concrete is finally set, so that water is drained into the concrete through the water drainage pores, and cement slurry is injected into the galvanized steel pipe after the concrete reaches a formwork stripping condition, so that the floor slab concrete is formed.

According to the construction method of the concrete floor slab capable of preventing cracking, the non-woven fabric is laid on the surface of the galvanized steel pipe.

According to the construction method of the concrete floor slab capable of preventing cracking, disclosed by the invention, the galvanized steel pipe is subjected to wet operation before concrete pouring.

According to the construction method of the concrete floor slab capable of preventing cracking, disclosed by the invention, after the completion of injecting the cement slurry of the galvanized steel pipe, two ends of the galvanized steel pipe are plugged.

According to the construction method of the concrete floor slab capable of preventing cracking, two ends of the galvanized steel pipe are plugged through the closing and plugging covers.

The construction method of the concrete floor slab capable of preventing cracking, provided by the invention, is characterized in that the water injection operation in the galvanized steel pipe is repeated for 2-3 days.

The invention has the following beneficial effects: the invention designs a concrete floor slab capable of preventing cracking and a construction method thereof, wherein a galvanized steel pipe with small water drainage holes is creatively designed to be embedded in the concrete of the floor slab, clear water is injected into the galvanized steel pipe through a grouting machine in the concrete curing process, water is secreted into the concrete through the small water drainage holes for curing, cracking caused by overhigh internal temperature of the concrete is avoided, high-strength cement slurry is injected into the galvanized steel pipe after a vertical template is detached, the whole floor slab is compact, and meanwhile, the galvanized steel pipe and the floor slab are connected into a whole, so that the bearing capacity of the whole floor slab is improved.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

figure 1 is a schematic view of a floor slab of an embodiment of the invention;

FIG. 2 shows a galvanized steel pipe according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1-2, a concrete floor slab capable of preventing cracks includes: floor concrete 1, 1 pre-buried a plurality of galvanized steel pipes 2 that have in floor concrete thickness direction middle part, the length direction of galvanized steel pipe 2 is parallel with floor concrete 1's extending direction, 2 outsides of galvanized steel pipe have a plurality of apertures 4 that drain that run through, 2 length direction end of galvanized steel pipe are provided with the end of drawing a thread 6, and are adjacent 6 departments of drawing a thread end close soon there is connecting sleeve 5, realize 2 length direction's of galvanized steel pipe extension, the grout has been filled in the galvanized steel pipe 2, 2 outside both ends of galvanized steel pipe are provided with the shutoff lid.

In a preferred embodiment of the present invention, the galvanized steel pipe 2 and the steel reinforcement framework of the floor concrete 1 are bound by binding wires.

In a preferred embodiment of the present invention, a non-woven fabric 3 is laid on the outer side of the galvanized steel pipe 2.

In a preferred embodiment of the present invention, the galvanized steel pipe 2 and the nonwoven fabric 3 are bundled by binding wires.

A construction method of concrete floor slab capable of preventing cracking is characterized in that in the process of manufacturing steel bars of floor slab concrete 1, a galvanized steel pipe 2 with water drainage holes 4 processed in advance is bundled with bottom steel bars of the floor slab concrete 1, then gluten manufacturing of the steel bars of the floor slab concrete 1 is continued, the steel bars and the galvanized steel pipe 2 are bundled after the completion, concrete pouring is carried out, after concrete is finally set, water injection operation is carried out in the galvanized steel pipe 2 to enable water to be drained into the concrete through the water drainage holes 4, and after the concrete reaches a formwork stripping condition, cement paste is injected into the galvanized steel pipe 2 to form the floor slab concrete 1.

In a preferred embodiment of the invention, the surface of the galvanized steel pipe 2 is coated with a non-woven fabric 3.

In the preferred embodiment of the present invention, the galvanized steel pipe 2 is subjected to a wet-water operation before the concrete is poured.

In the preferred embodiment of the invention, after the cement slurry injection of the galvanized steel pipe 2 is completed, the two ends of the galvanized steel pipe 2 are plugged.

In a preferred embodiment of the invention, the two ends of the galvanized steel pipe 2 are sealed by covering sealing covers.

In the preferred embodiment of the present invention, the water injection operation in the galvanized steel pipe 2 is repeated for 2 to 3 days.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.