TECHNOLOGICAL ASPECTS OF ENSURING THE IMPROVEMENT OF VIBRO-PRESSED CONCRETE PRODUCTS QUALITY (PRODUCTION EXPERIENCE).

Abstract

The author's article is devoted to the peculiarities of specific technological techniques and specialized concrete forming equipment use in the process of ultra-hard concrete mixtures vibro-pressing in the production of shaped paving elements, concrete side stones and small architectural forms. The author's material uses the data of many years of industrial production experience on the technological lines of the "Mii Dvir" Trademark (TM) (Lviv), where the main production sections are considered, which provide a full cycle of manufacturing elements from the line of preparation of inert materials to the production of finished concrete vibro-pressed products.

In this publication, the experience of industrial serial production of vibro-pressed products of a wide range based on ultra-hard concrete mixtures using mixtures with a water-cement ratio (W/C) of up to 0.36 is used.

In the period from 1997 to 1999, with the participation of the author of the article in co-authorship with the engineering and technical staff of TM "Mii Dvir" at the production facilities located in the village of Mylyatich, Lviv District, Lviv Region technological regulations were developed (TR number 40.207 101.031-99) for serial production of concrete products by the method of semi-dry vibro-pressing. In the article, the author provides a list of optimal technological equipment at all the main stages, which include grinding, screening and washing of construction sand, granite rubble and sifting and quartz sprinkles, with a description of further operations related to the manufacture of finished vibro-pressed concrete products.

The author's publication aims to carry out a comprehensive analysis of the production of vibro-pressed concrete products of increased architectural expressiveness and their physical and mechanical characteristics, which include the use of colored fine-grained super-stiff mixtures.