Construction method for controlling negative elevation of concrete surface by adopting convex type scraping rule

Abstract

The invention provides a construction method for controlling negative elevation of a concrete surface by adopting a convex type scraping rule. The construction method comprises the following steps: preparing a convex type scraping rule with a fixed size through cutting and machining aluminum alloy steel; setting a concrete road surface side mold according to designed road surface elevation; when pouring a concrete foundation, scrapping a construction concrete foundation pouring surface downwards by adopting a convex surface of the set scraping rule, and checking the flatness of a transverse road surface; downwards checking the flatness of a longitudinal road surface of the concrete foundation by adopting an upward plane of the convex surface of the set scraping rule; and after manually carrying out wood floating and polishing on the flattened foundation surface, carrying out the construction of a wear-resisting layer of the next step. The construction method can be used for rapidly and accurately controlling the negative elevation of the concrete foundation surface, and a construction space of the wear-resisting layer at the upper part of a concrete foundation is reserved, and two times of formwork erection before the construction of the wear-resisting layer are avoided, so that the construction cost can be effectively reduced and a construction progress is accelerated; the construction method is simple and reliable and the working efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of concrete construction, in particular to a construction method using a convex scraper to control the negative elevation of the concrete surface, which is applied to control the negative elevation of the concrete foundation surface in the polished concrete pavement of the proving ground, and reserves a resistance that meets the design requirements. Grinding layer thickness and ensuring the flatness of the base surface. Background technique [0002] With the continuous vigorous development of my country's automobile industry, the proving ground, as a necessary facility for automobile research and development and evaluation, has been paid more and more attention by major domestic automobile manufacturers. In the construction of today's proving grounds, in order to test new technical performance, improve test results or save costs, owners often design some new special road surfaces and put forward higher quali...

AI Technical Summary

Problems solved by technology

When the side formwork on the pavement is erected using the conventional method, the elevation of the top surface of the side formwork is controlled to the concrete foundation surface. After leveling, the side formwork of the wear-resistant layer is installed, and the material of the wear-resistant layer is leveled again. In this method, there is a secondary formwork. It increases the cost and easily affects the timing of spreading the wear-resistant layer material. The second is that the secondary mold is not easy to fix and retest, and it is easy to affect the high precision and flatness of the pavement after the wear-resistant layer is formed.

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