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Construction method for huge-area rib-free wear-resisting concrete terrace

A construction method and concrete technology, applied in construction, building structure, processing of building materials, etc., can solve problems such as affecting the use function of workshop, irregular cracks, sand formation, etc., achieve good three-dimensional restraint ability, improve surface strength, Economically significant effect

Active Publication Date: 2014-02-05
SHANDONG WANXIN CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since there is no supporting construction technology for large-area concrete floors, serious quality defects such as irregular cracks, sanding, and delamination have occurred, which directly affect the use of the workshop. It has become a national technology that needs to be solved urgently. problem

Method used

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  • Construction method for huge-area rib-free wear-resisting concrete terrace
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  • Construction method for huge-area rib-free wear-resisting concrete terrace

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with accompanying drawing:

[0038] Such as Figure 1 ~ Figure 3 As shown, the construction method of huge area unreinforced wear-resistant concrete floor of the present invention, the steps are as follows:

[0039] 1) Foundation treatment: When the standard value of the allowable live load of the floor design is 60-120KPa, use 3:7 lime soil with a thickness of 300-600mm to roll the foundation 1; when the standard value of the allowable live load of the floor design is 125-160KPa, Use 600-900mm graded gravel to roll the foundation 1;

[0040]2) Concrete is designed according to the following mix ratio: ①The water-binder ratio of concrete is 0.45~0.5, the initial setting time is 8~12h, and the slump is 120mm±20mm; ; ③ Add 0.6-0.9 kg of crack-resistant PP fiber per cubic meter of concrete; ④ Use 42.5 grade P.O medium-heat cement, and the amount of concrete cement is 280-320 kg / m3; ⑤ Choose a particle s...

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Abstract

The invention belongs to the technical field of building construction, in particular to a construction method for a huge-area rib-free wear-resisting concrete terrace. The construction method mainly comprises the following steps: 1, treating a foundation; 2, designing terrace concrete according to the following mix proportion; 3, arranging a structure sliding layer; 4, dividing a terrace pouring plate; 5, mounting steel channel templates; 6, pouring concrete and leveling; 7, performing water absorption processing on a concrete surface; 8, dispersing emery; 9, conducting press polish on the surface; 10, pouring other slab concrete in an alternative bay manner; 11, covering and curing; 12, cutting contraction joints; 13, arranging expansion joints; 14, filling the expansion joints; 15 protecting the finished product. The construction method has obvious economic benefits, is high in operability, and meets energy-saving environment-protection and green construction requirements. Moreover, reinforcing bars are saved, the construction is convenient, and the key technical difficult problems that the service functions of the huge-area rib-free concrete terrace are affected by sand loss, shedding, cracks and the like.

Description

technical field [0001] The invention relates to a construction method for a large-area unreinforced wear-resistant concrete floor, which belongs to the technical field of building construction. Background technique [0002] In recent years, in order to meet the requirements of industrial production technology, a large number of large-area steel structure workshops have sprung up, and huge workshop concrete floors of 30,000 square meters or more abound. However, since there is no supporting construction technology for large-area concrete floors, serious quality defects such as irregular cracks, sanding, and delamination have occurred, which directly affect the use of the workshop. It has become a national technology that needs to be solved urgently. problem. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction method for a large-area unreinforced wear-resistant concrete floor that ensures the quality an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/02
Inventor 贾华远贾栋
Owner SHANDONG WANXIN CONSTR
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