Method for manufacturing fine aggregate concrete wall column inner stay on site

Abstract

The invention discloses a method for manufacturing a fine aggregate concrete wall column inner stay on site. The method comprises the steps that a stainless steel square pipe is adopted at first for manufacturing a mold, wherein the mold comprises a rectangular outer frame, a set of parallel partition strips evenly distributed in the outer frame and a pair of handles symmetrically installed on the two sides of the outer frame; a set of inner stay frameworks and a bottom mold are manufactured, and particularly, a laminate plate or engineering plastic or a steel plate is adopted for manufacturing the flat plate type bottom mold; the bottom mold is placed flatly, the surface of the bottom mold is coated with a releasing agent in a brushed mode, and the mold is placed on the bottom mold; a first layer of fine aggregate concrete is poured and tamped in the mold; the set of parallel inner stay frameworks are evenly placed to the first layer of fine aggregate concrete; a second layer of fine aggregate concrete is poured and tamped on the first layer fine aggregate concrete, namely the inner stay frameworks; standing is kept till the fine aggregate concrete is solidified and molded, the handles are pulled up to separate the mold from the solidified and molded fine aggregate concrete, and the wall column inner stay material is obtained. The method can ensure that the produced inner stay is high in strength and good in quality, meets on-site construction requirements, and is convenient and fast to implement, economical and applicable.

Description

technical field [0001] The invention belongs to the technical field of building engineering construction, in particular to the technical field of a construction material production method for adding and fixing internal vertical templates of members such as shear walls and beams. Background technique [0002] In building construction, shear walls and deeper beams need to be reinforced. During the strengthening process, it has always been difficult to fix the relative position of the shear wall and the formwork on both sides of the deeper beam. Initially, the waste steel bars were cut off as inner stays to fix the relative positions of the formwork on both sides. Later, it was improved to use prefabricated concrete inner stays pre-produced by the prefabrication factory, but there are still the following deficiencies: ① Prefabrication plant The cement used is usually different from the concrete used on the building construction site. During the interconnection process between ...

AI Technical Summary

Problems solved by technology

During the strengthening process, it has always been difficult to fix the relative position of the formwork on both sides of the shear wall and the deeper beam

Initially, the waste steel bars were cut off as inner stays to fix the relative positions of the formwork on both sides. Later, it was improved to use prefabricated concrete inner stays pre-produced by the prefabrication factory, but there are still the following deficiencies: ① Prefabrication plant The cement used is usually different from the concrete used on the building construction site. During the interconnection process between the concrete prefabricated inner stays and the shear walls or beams, the mutual bonding of the concrete is not ideal, which has an adverse effect on the construction quality; ② prefabricated inner stays are required There are many sizes and specifications and heavy weight, which makes transportation and storage difficult, which increases the production cost; ③The prefabricated inner stays are generally not high in strength and small in thickness, and the loss is large during transportation; ④The number of prefabricated inner stays is limited , uneven distribution, especially in remote and backward areas where there are fewer manufacturers, a large number of prefabricated inner stays need long-distance transportation, resulting in increased construction costs; ⑤ long prefabricated production cycle, affecting construction progress

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