Method used for preparing test dies with recycled aggregate concrete

Abstract

The invention belongs to the field of preparation of building test dies, and especially relates to a method used for preparing test dies with recycled aggregate concrete. According to the method, a die assembly used for preparing dies is prepared; a preparation space is arranged in the die assembly; the size of the preparation space matches that of a standard die; the standard die is used for preparing standard test blocks. The method comprises following steps: 1, smearing of an adhesive; 2, nourishing of the die assembly; 3, preparing of a mixture; 4, filling; 5, natural curing; and 6, demoulding. According to the method, recycled aggregate concrete is used in die preparation for the first time, and technical problems in direct application of common recycled aggregate concrete in die preparation, such as rough die surfaces, poor test block surface quality, and inaccurate testing results, are avoided.

Description

technical field [0001] The invention relates to the field of preparing molds for construction tests, in particular to a method for preparing test molds using recycled aggregate concrete. Background technique [0002] In the field of construction, it is often necessary to prepare a test block from the overall material for testing to judge the overall performance of the material. Usually, a mold with a cavity that matches the size of the standard test block is used to prepare the test block. These molds are generally made of ordinary building concrete, which need to consume more building materials during preparation, resulting in more waste of resources. [0003] In recent years, recycled aggregate concrete has received extensive attention due to its environmental protection and resource-saving characteristics. Currently, the more common components of recycled aggregate concrete mainly include recycled aggregate, cement, mineral compounds, natural aggregate, admixtures and Wa...

AI Technical Summary

Problems solved by technology

[0002] In the field of construction, it is often necessary to prepare a test block from the overall material for testing to judge the overall performance of the material. Usually, a mold with a cavity that matches the size of the standard test block is used to prepare the test block. These molds are generally made of ordinary building concrete, and more building materials are consumed during preparation, resulting in more waste of resources

[0003] In recent years, recycled aggregate concrete has received extensive attention due to its environmental protection and resource-saving characteristics. Currently, the more common components of recycled aggregate concrete mainly include recycled aggregate, cement, mineral compounds, natural aggregate, admixtures and Water, the amount of each ingredient and the change of ingredients will affect the strength of the final recycled aggregate concrete. Since the amount of each ingredient needs to be accurately calculated when it is used, the use of recycled aggregate concrete is more troublesome. The scope of application is small, and there is currently no technical solution for applying recycled aggregate concrete to mold preparation. At the same time, the applicant found that if ordinary recycled aggregate concrete is directly used in the preparation of molds, it is easy to cause molds The surface is rough, which affects the surface quality of the final test block and makes the test results inaccurate

[0004] To sum up, there is an urgent need for a technical solution to solve the problem that there is currently no technical solution for applying recycled aggregate concrete to mold preparation, and the direct application of ordinary recycled aggregate concrete to mold preparation will easily lead to the obtained The surface of the mold is rough, which affects the surface quality of the final test block and makes the test results inaccurate.

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