Construction method of durafiber concrete
A fiber reinforced concrete and Dura fiber technology, which is applied in chemical instruments and methods, clay preparation devices, cement mixing devices, etc. Taking into account the cost and the scientific and reasonable effect of the ratio
Inactive Publication Date: 2009-10-21
湖南长大建设集团股份有限公司
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Problems solved by technology
The concrete in the current reinforced concrete is mainly cement, sand and gravel. The weakness of this ordinary concrete is that it is prone to cracks due to its brittleness. The ratio of its tensile strength to compressive strength is only 6%, that is to say its resistance Pull capacity is much lower than its compressive capacity
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Embodiment
[0013] Embodiment: The whole technological process is divided into two steps, that is, concrete preparation and skeleton preparation. Under the guidance of concrete construction plan and technical disclosure 16, enter the technological steps of fiber concrete pouring 18 and fiber concrete maintenance 19. The following examples illustrate the two parts of concrete preparation and skeleton preparation.
[0014] 1. Concrete preparation, that is, the preparation and operation process of Dura fiber concrete:
[0015] 1 Determination of fiber content: the mix ratio and performance of Dura fiber anti-crack and anti-seepage concrete must be determined through trial mix, so as to grasp the best mix ratio and corresponding compressive strength, tensile strength, impermeability grade, concrete slump degree etc. The amount of fiber should be determined according to the purpose of use, while considering the specific ratio of concrete, aggregates and other admixtures. Combined with the do...
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The invention discloses a construction method of durafiber concrete, wherein, the step of stirring the concrete in the technical steps for preparing the concrete comprises three steps: a first step of stirring (4) is stirring durafiber (1), sands (2) and crushed stones (3); a second step of stirring (7) is again stirring the mixture with water (5) and admixture (6) on the basis of completing the first step of stirring (4); and a third step of stirring (10) is again stirring the mixture with cement (8) and blend (9) on the basis of completing the second step of stirring (7). The durafiber (1) is high-intensity polypropylene monofilament fiber with the content of 0.5-1.8 kilogram in per cubic meter of concrete. The invention has scientific and reasonable mixture ratio, simple technical operation, advanced technology, meets national energy-saving and environment-protecting requirement, gives equal consideration to cost, long-term benefit and short-term benefit, and obviously improves the tension-resistant capability of common concrete. The method can be used for the construction work of civil engineering, highway, bridge, tunnel, mine, etc.
Description
technical field [0001] The invention relates to a building construction method, in particular to a construction method of dura fiber concrete capable of improving the toughness of ordinary concrete. Background technique [0002] With the progress of society, the construction of various high-rise buildings, highway bridges, reinforced concrete structures are widely used. The concrete in the current reinforced concrete is mainly cement, sand and gravel. The weakness of this ordinary concrete is that it is prone to cracks due to its brittleness. The ratio of its tensile strength to compressive strength is only 6%, that is to say its resistance The pulling ability is much lower than its compressive ability. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a construction method of dura fiber concrete that improves the tensile capacity of ordinary concrete. [0004] The purpose of the present i...
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IPC IPC(8): E04G21/02B28C5/40
Inventor 李和平张文祥李天成刘晓晖贺朝晖刘新旗文晖周妙玲卢亮
Owner 湖南长大建设集团股份有限公司