Process for adopting fair-faced concrete pouring during building construction

Abstract

The invention discloses a process for adopting fair-faced concrete pouring during building construction. According to the process, concrete mixing is strictly measured according to a mixing ratio, a pump is used for transportation, and a concrete pump should be placed on a solid ground; vibration time of the concrete is mastered, and vibration is not stopped until the surface of the concrete has uniform cement paste represented and does not have obvious sinking and a large number of risen air bubbles; after the concrete is cooled to <+>5 DEG C, and the difference value between the concrete surface temperature and the ambient temperature is greater than 15 DEG C after form removal, coverage and maintenance should be carried out on the surface of the concrete, so that the concrete is cooledslowly; the form removal is carried out on the concrete when the strength of test pieces under the same conditions reaches 3 MPa or 4 MPa, and in-time maintenance should be carried out after the formremoval to reduce the phenomena of chromatic aberration, shrinkage cracks and the like on the surface of the concrete, fair-faced concrete often adopts the method of combining plastic film or flame retardant mat coverage and watering maintenance, watering should be carried out before the form removal and during maintenance respectively to keep wet, and the maintenance time is not less than 7d. Theprocess for adopting fair-faced concrete pouring during the building construction can ensure that the fair-faced concrete meets the requirements after pouring and the service life of the concrete islonger.

Description

technical field [0001] The invention relates to a building construction technology, in particular to a technology for pouring fair-faced concrete in building construction. Background technique [0002] The buildings are mainly wooden structures, while the traditional western buildings are mainly masonry structures. Modern buildings are dominated by reinforced concrete. [0003] Ancient Chinese architecture has a simple and elegant style, mainly using thatch and wood as building materials, and using wooden structures as structural methods (columns, beams, squares, purlins, rafters, etc.), combined in accordance with the actual size, shape and spacing required by the structure. Together. This architectural structure reflects the clarity, order and stability of the ancient patriarchal society. Since the beams and columns made of wooden materials are not easy to form a huge internal space, ancient buildings cleverly used the natural space outside the port to form a courtyard....

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that due to the failure to master the skills of the concrete pouring of the existing buildings, it is easy to crack and hollow after the clear-water concrete is poured, which affects the later use. The technology solves the problem that the fair-faced concrete is easy to crack and hollow after pouring due to the failure to master the skills of concrete pouring in existing buildings, which affects the later use of the problem