An interlocking and assembling anti-crack and anti-seepage permanent beam formwork

Abstract

The invention discloses an interlocking dismountable anti-cracking anti-seepage permanent beam template. A first corner panel and a second corner panel are connected by virtue of an adhesion agent in an interlocking manner. The beam template disclosed by the invention can be used as the beam template in a beam pouring stage of structures such as an industrial and civil building structure, a hydraulic structure and a seaport structure, is taken as a protective plate and an outer protective layer of the structure after pouring and moulding are carried out and bears a part of load. The beam template disclosed by the invention can be prepared from the following different types of materials: ultrahigh toughness cementitious composite (UHTCC), a non-metal fiber woven mesh short fiber combined reinforced cementitious composite and a steel wire mesh short fiber combined reinforced cementitious composite and has the characteristics of convenience in manufacturing, convenience in application, high durability and control over crack developing.

Description

technical field [0001] The invention belongs to a building formwork, specifically a high-durability permanent formwork mainly used for beams in industrial and civil building structures, hydraulic structures, and harbor and sea structures. It is used as a formwork in the pouring stage. After forming, it also serves as the protective plate and outer protective layer of the structure, and bears part of the structural load at the same time. Background technique [0002] At present, in the field of domestic construction, the beams of industrial and civil building structures, hydraulic structures, and harbor and sea structures usually use wooden formwork, steel formwork and other formwork, which has large consumption, inconvenient disassembly and assembly, high turnover cost, and low utilization rate. and other unfavorable factors. Durability has always been one of the main problems faced by reinforced concrete structures. In the traditional structure, the surface of ordinary co...

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Problems solved by technology

In the traditional structure, the surface of ordinary concrete is naturally exposed, and its durability is low. At present, about 50% of the houses in my country have entered the aging stage, that is, 2.34 billion square meters of buildings are facing durability problems.

In addition, designing with crack resistance as the control condition is an important feature that distinguishes hydraulic structures, port and sea structures, etc. from other types of building structures. The problem of easy cracking of ordinary concrete will not only affect the normal work of hydraulic structures, but also affect their durability. performance and service life, and even affect the safe operation of the structure

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