MATEC Web Conf.
Volume 247, 2018Fire and Environmental Safety Engineering 2018 (FESE 2018)
|Number of page(s)||8|
|Published online||10 December 2018|
Checking the compatibility of embedded concrete for the production of prefabricated freight scales with the parameters declared by the supplier
The Main School of Fire, Faculty of Fire Safety Engineering, 52/54 Slowackiego St., 01-629 Warsaw, Poland
* Corresponding author: email@example.com
The ready-mixed concrete is subject to certification in accordance with the compliance system 2+. Manufacturers of concrete are required to implement factory production control and then to certify concrete, which is subject to the national mark B. The paper presents the results of strength tests of C 40/50 concrete samples. Designed according to the 23M SCC recipe, concrete has been used in the production of freight scales. The samples were subjected to "in situ" tests. As a method of quality control, a non-destructive test method for concrete strength has been proposed. A sclerometer (Schmidt type N hammer) was used for the tests. The research used a dynamic method of measurement by evaluating the change in the energy of the beater after rebounding from a given surface. Normal cubes with dimensions 15x15x15 cm were used for the tests. Concrete testing was carried out after the 28th day of care in accordance with the requirements of PN-EN 2390-2:2001. Based on the analysis, conclusions from the tests were formulated. The compression strength class was determined and the conformity of the hardened concrete with the parameters declared by the manufacturer was controlled. The evaluation was carried out using methods B and C for continuous production. CUSUM cumulative sum control cards and Shewhart control cards were used.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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